JP2006071928A - Optical device manufacturing apparatus and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical device manufacturing apparatus capable of reducing the manufacturing cost, capable of satisfactorily adjusting the positions of a plurality of light modulation devices, and easily manufacturing various optical devices having different optical paths for a plurality of color lights.
A manufacturing apparatus includes: a holding unit that holds a color synthesis optical device; an adjustment light source device 5; a position adjustment device that holds and adjusts one of the light modulation devices; and a color synthesis optical device. A rotation unit configured to rotate the position adjustment device so that the light incident side end surface and the held light modulation device face each other; The adjustment light source device 5 includes a light source device main body 51 that emits light of each color from each of the emission positions R1, G1, and B1, and a base end portion located at any one of the light emission device main body 51 and a distal end portion of the position adjustment device. And an optical fiber 52 that irradiates the light modulation device that holds the color light introduced from the base end portion and held by the position adjusting device, and a moving mechanism 53 that moves the base end portion of the optical fiber 52 to each emission position. Yes.
[Selection] Figure 14

Description

  The present invention relates to an optical device manufacturing apparatus and a manufacturing method thereof.

In recent years, a projector that forms a projection image on the surface side (observer side) of a screen is known as a home theater application in the home.
As this projector, three light modulators that modulate three color lights of R, G, and B according to image information, and a color that forms an optical image by combining each light beam modulated by each light modulator. A so-called three-plate projector having a cross dichroic prism as a synthesizing optical device is known.
This three-plate projector employs an optical device in which three light modulation devices are directly attached to the light incident end face of a cross dichroic prism in order to simplify the structure and simplify the assembly process.

  In the optical device described above, when fixing the light modulation device on the light incident side end surface of the cross dichroic prism, it is necessary to adjust the mutual position with high accuracy in order to prevent image quality deterioration due to pixel shift of each light modulation device. is there. For this reason, a manufacturing apparatus has been proposed in which the positions of the three light modulation devices are adjusted and fixed to the light beam incident side end face of the cross dichroic prism (see, for example, Patent Document 1).

  The manufacturing apparatus described in Patent Document 1 holds a light source unit that emits an adjustment light beam, three optical fibers that guide the light beam emitted from the light source unit to predetermined positions, and three light modulation devices, respectively. In addition, three 6-axis position adjustment units that are connected to the respective optical fibers and irradiate the light beams that have passed through the respective optical fibers to the three held optical modulation devices, and the optical modulation devices and the cross dichroic prism are used. And an image detection device for detecting a light beam. Based on the image detected by the image detection device, the three 6-axis position adjustment units are operated to adjust the positions of the three light modulation devices, respectively.

JP 2003-270717 A

However, in the manufacturing apparatus described in Patent Document 1, since three six-axis position adjustment units are provided corresponding to the three light modulators, it is difficult to reduce the manufacturing cost when manufacturing the manufacturing apparatus.
In the manufacturing apparatus described in Patent Document 1, the light source unit emits an adjustment light beam. For example, when white light is emitted, only a predetermined color light component is emitted from the cross dichroic prism. Since the light is emitted from the end surface on the light beam emission side, the light amount of the light beam detected by the image detection device is reduced, and it is difficult to satisfactorily adjust the positions of the three light modulation devices.
In order to avoid such a problem, a configuration in which a light source unit is configured so as to be able to emit three colored lights and the three colored lights are respectively guided to three six-axis position adjusting units by each optical fiber is conceivable. In such a configuration, since each color light emitted from each 6-axis position adjustment unit is emitted from the end surface on the light emission side of the cross dichroic prism via the light modulation device, the light amount of the light detected by the image detection device Can be maintained satisfactorily, and the positions of the three light modulation devices can be satisfactorily adjusted.
By the way, in the projector described in Patent Document 1, the optical path lengths of the green and blue color lights are set to be the same, and the optical path length of the red light is set to be longer than the optical path lengths of the green and blue color lights. Has been. Depending on the projector model, in addition to the settings described above, among the red, green, and blue color lights, the light path length of the blue light is set to be long, or the light path length of the green light is long. There is something set to. That is, depending on the projector model, the optical paths of the three color lights are different.
However, in the case of the above configuration, since the light source unit and the three 6-axis position adjustment units are respectively connected by three optical fibers, the optical paths of the three colored lights are different as described above. When manufacturing an optical device, three optical fibers are removed from the light source unit or the three six-axis position adjustment units so that specific color light is emitted from a predetermined six-axis position adjustment unit. It is necessary to change the connection state between the unit or the three 6-axis position adjusting units. For this reason, there is a problem that the operator must perform complicated work.

  An object of the present invention is to provide an apparatus for manufacturing an optical device that can reduce the manufacturing cost, adjust the positions of a plurality of light modulation devices, and easily manufacture various optical devices having different optical paths for a plurality of color lights, and It is in providing the manufacturing method.

  The optical device manufacturing apparatus of the present invention includes a plurality of light modulation devices that modulate a plurality of color lights for each color light according to image information, and a plurality of light beam incident side end surfaces to which the plurality of light modulation devices are attached. An optical device manufacturing apparatus for manufacturing an optical device including a color combining optical device that combines optical beams modulated by a plurality of light modulation devices to form an optical image, wherein the color combining optical device is placed at a predetermined position. A holding unit that holds the plurality of color lights, an adjustment light source device that emits any one of the plurality of color lights to the light modulation device, and any of the plurality of light modulation devices Position adjustment for adjusting the position of the light modulation device with respect to the color synthesis optical device based on the light beam emitted from the adjustment light source device and passing through the light modulation device and the color synthesis optical device. Equipment and A rotation unit that rotates the position adjustment device or the holding unit so that a plurality of light incident side end faces of the color synthesis optical device and a light modulation device held by the position adjustment device face each other; The adjustment light source device includes: a light source device main body having a plurality of light beam emission positions for emitting the plurality of color lights; and a light source emission position of a base end portion of the plurality of light beam emission positions in the light source device main body. A light guide unit for irradiating the light modulation device held by the position adjustment device from the tip portion with the color light introduced from the base end portion with the distal end portion connected to the position adjustment device, and the light guide And a moving mechanism for moving a base end portion of the portion to the plurality of light beam emission positions.

According to the present invention, the holding unit that holds the color synthesizing optical device or the position adjustment device that holds the light modulation device and adjusts the position of the light modulation device is configured to be rotatable by the rotation unit. The predetermined light beam incident side end surface of the plurality of light beam incident end surfaces of the color synthesizing optical device can be opposed to the light modulation device held by the position adjusting device. For this reason, it is not necessary to provide three position adjusting devices as in the prior art, and only one position adjusting device can be configured, so that the manufacturing cost can be reduced when manufacturing the manufacturing apparatus.
Further, since the adjustment light source device is configured to be able to emit each color light corresponding to the plurality of light modulation devices, the amount of light flux through the light modulation device and the color synthesis optical device is not reduced. For this reason, it is possible to satisfactorily adjust the positions of the plurality of light modulation devices based on the light flux that has passed through the light modulation device and the color synthesis optical device.
Furthermore, by moving the proximal end portion of the light guide unit by the moving mechanism, any one of the color lights respectively emitted from the plurality of light beam emission positions of the light source device body is guided by the light guide unit. Since the light modulation device held by the position adjustment device can be irradiated, even when manufacturing an optical device having different optical paths for a plurality of color lights, the light is guided by a moving mechanism in accordance with the optical paths for the plurality of color lights. The light modulation device can be irradiated with the color light according to the optical path position of the predetermined color light by moving the base end portion of the part. For this reason, it is not necessary for the operator to perform a complicated operation such as removing the optical fiber as in the prior art, and various optical devices having different optical paths for a plurality of color lights can be easily manufactured.

In the optical device manufacturing apparatus of the present invention, a setting input unit for setting and inputting optical path information related to the optical paths of the plurality of color lights according to the model of the optical device, and optical path information set and input to the setting input unit are stored. A storage unit, and a control unit that drives and controls the moving mechanism, the control unit based on the optical path information stored in the storage unit and the rotation position of the holding unit or the position adjustment device, The light guiding unit when the holding unit or the rotation position of the position adjusting device is positioned at an optical path position of a predetermined color light among the optical paths of the color light according to the model of the optical device based on optical path information It is preferable that the moving mechanism is driven and controlled so that the predetermined color light is emitted from the front end portion.
Here, for example, a PC (Personal Computer) including a CPU (Central Processing Unit) that reads and executes a control program can be employed as the control unit.
In addition, the optical path information setting input includes a configuration in which optical paths of a plurality of colored lights corresponding to the model of the optical apparatus are directly input to the setting input unit, and a plurality of optical paths related to the plurality of colored lights corresponding to the model of the optical apparatus in the storage unit in advance. The optical path information is stored and the setting input unit selects any one of the plurality of optical path information, or the storage unit has a plurality of optical paths related to the optical paths of a plurality of color lights according to the model of the optical device in advance. A configuration in which information and a plurality of model information such as a model name indicating the model are stored in association with each other and a setting input unit selects any one of the plurality of model information can be employed.
In the present invention, optical path information is set and input to the setting input unit, and this optical path information is stored in the storage unit. And a control part drive-controls a moving mechanism based on the optical path information memorize | stored in the memory | storage part, and the rotation position of a holding | maintenance part or a position adjustment apparatus. As a result, the holding unit or the position adjusting device is rotated by the rotating unit, and the light beam of the color combining optical device is incident on the optical path position of the predetermined color light among the optical paths of the plurality of color lights according to the model of the optical device to be manufactured. When the side end face or the position adjusting device is positioned, the predetermined color light can be emitted from the tip portion of the light guide. Therefore, compared to a configuration in which the moving mechanism is driven manually, it is easier to manufacture various optical devices having different optical paths for a plurality of color lights without changing the moving position of the base end portion of the light guide unit. Can be implemented quickly.

In the optical device manufacturing apparatus of the present invention, the setting input unit is configured to be able to set and input adjustment order information related to an adjustment order of the plurality of light modulation devices constituting the optical device, and the storage unit The adjustment order information set and input to the input unit is stored, and the control unit is based on the optical path information and the adjustment order information stored in the storage unit and the rotation position of the holding unit or the position adjustment device. In the adjustment order of the plurality of light modulation devices based on the adjustment order information, the holding unit or the position adjustment device is rotated at each optical path position of the plurality of color lights according to the model of the optical device based on the optical path information. It is preferable to drive and control the rotation unit so that the positions are sequentially positioned.
Here, as the setting input of the adjustment order information, the adjustment order of the plurality of light modulation devices constituting the optical device is directly input to the setting input unit, and the plurality of light modulation devices that constitute the optical device in advance in the storage unit. A configuration in which a plurality of adjustment sequence information relating to the adjustment sequence is stored and any one of the plurality of adjustment sequence information is selected by a setting input unit, or a plurality of light modulation devices in which an optical device is configured in advance in the storage unit A plurality of pieces of adjustment order information relating to the adjustment order and a plurality of pieces of model information such as model names indicating the types of optical devices are stored in association with each other, and any one of the plurality of pieces of model information is selected by a setting input unit. A configuration or the like can be adopted.
In the present invention, adjustment order information is set and input to the setting input unit, and this adjustment order information is stored in the storage unit. And a control part drive-controls a rotation part based on the optical path information and adjustment order information which were memorize | stored in the memory | storage part, and the rotation position of a holding | maintenance part or a position adjustment apparatus. Accordingly, the light beam incident side end face of the color combining optical device or the position adjusting device can be sequentially positioned in each optical path position of the plurality of color lights according to the model of the optical device in the adjustment order of the plurality of light modulation devices. For this reason, compared with the structure which drives a rotation part and a movement mechanism manually, a rotation position of a holding | maintenance part or a position adjustment apparatus, and the movement position of the base end part of a light guide part are not mistaken, but several Various optical devices having different color light paths can be more easily and quickly manufactured.

In the optical device manufacturing apparatus of the present invention, a light beam detection device that detects a light beam emitted from the adjustment light source device and that passes through the light modulation device and the color synthesis optical device, and a light beam detected by the light beam detection device And a control unit that drives and controls the position adjustment device, and the control unit captures an image detected by the light flux detection device and converts the image into an image signal, and the image capture An image processing unit that performs image processing based on an image signal output from the unit and determines an optimal posture position of the light modulation device based on the processing result, and the posture determined by the image processing unit It is preferable to drive and control the position adjusting device based on the optimum position.
Here, an image sensor such as a CCD (Charge Coupled Device), a MOS (Metal Oxide Semiconductor) sensor, or the like can be employed as the light flux detection device.
Further, as the image capturing unit, a video capture board or the like that receives a signal output from the light beam detecting device and converts it into an image signal for PC can be employed. Furthermore, as the image processing unit, an arithmetic processing unit configured by a CPU or the like inside the PC can be employed.
In the present invention, the control unit includes an image capturing unit and an image processing unit, captures an image detected by the light beam detection device, performs image processing, and determines and determines the optimum posture position of the light modulation device. The position adjustment device is driven and controlled based on the optimum posture position. Thereby, in the position adjustment of the light modulation device, the projected image projected on the screen after being enlarged and projected by, for example, the projection optical device via the light modulation device and the color synthesizing optical device is visually confirmed to confirm the position of the light modulation device. Compared with a configuration in which the position adjustment device is manually operated when performing the adjustment, the ambiguity of the adjustment accuracy is eliminated, and the light modulation device can be adjusted to the optimum position with respect to the color synthesis optical device, and the accuracy is high. An optical device can be manufactured.

  The method for manufacturing an optical device according to the present invention includes a plurality of light modulation devices that modulate a plurality of color lights for each color light according to image information, and a plurality of light beam incident side end surfaces to which the plurality of light modulation devices are attached. In order to manufacture an optical device including a color combining optical device that forms an optical image by combining the light beams modulated by a plurality of light modulation devices, the position adjustment device holds the light modulation device and adjusts the optical device. A method of manufacturing an optical device, wherein the position adjusting device adjusts the position of each light modulating device with respect to the color combining optical device based on image light emitted from a light source device and passing through the light modulating device and the color combining optical device. The adjustment light source device includes a light source device main body having a plurality of light beam emission positions for emitting a plurality of colored lights, and a base end portion of any of the plurality of light beam emission positions in the light source device main body. A light guide unit that is positioned at a bundle emission position and that has a distal end portion connected to the position adjustment device and irradiates the light modulation device held by the position adjustment device from the distal end portion with the color light introduced from the proximal end portion; A moving mechanism for moving a base end portion of the light guide unit to the plurality of light beam emission positions, and the manufacturing method includes: a color combining optical device installation step for installing the color combining optical device at a predetermined position; A light modulating device holding step for holding any one of the light modulating devices in the position adjusting device, and among the plurality of light beam incident side end faces of the color combining optical device, the light modulating device holding step. A rotating step of rotating the color synthesizing optical device or the position adjusting device by a rotating unit so that the light incident side end surface corresponding to the light modulating device held by the light modulating device faces the light modulating device, and the movement Mechanism A color light switching step of switching a color light emitted to the light modulation device by moving a base end portion of the light guide portion to the plurality of light beam emission positions, and a light modulation device held in the light modulation device holding step A light beam introducing step of introducing the color light switched in the color light switching step, and image light emitted through the light modulation device and the color synthesizing optical device, and using the position adjusting device, the color And a position adjusting step for adjusting the position of the light modulation device with respect to the combining optical device.

Here, the method for manufacturing an optical device of the present invention can be executed using, for example, the above-described device for manufacturing an optical device.
According to the present invention, an optical device manufacturing method includes a color synthesizing optical device installation step, a light modulation device holding step, a rotation step, a color light switching step, a light beam introduction step, and a position adjustment step. In the color light switching step, the moving mechanism moves the base end portion of the light guide unit to the plurality of light beam emission positions to switch the color light emitted to the light modulation device, so that it is the same as the optical device manufacturing apparatus described above. You can enjoy the effects of.

In the method of manufacturing an optical device according to the aspect of the invention, the moving mechanism includes a setting input step that is driven and controlled by a control unit to set and input optical path information related to the optical paths of the plurality of color lights according to the model of the optical device, In the color light switching step, the control unit performs the control based on the optical path information set and input in the setting input step and the rotation position of the color synthesizing optical device or the position adjustment device rotated in the rotation step. When the rotation position of the color synthesizing optical device or the position adjustment device is positioned at the optical path position of a predetermined color light among the optical paths of the color light according to the optical device model based on the optical path information, the guide is provided. It is preferable that the moving mechanism is driven and controlled so that the predetermined color light is emitted from the tip portion of the light portion.
Here, as a control part, the thing similar to the control part of the manufacturing apparatus mentioned above is employable.
According to the present invention, the manufacturing method includes a setting input step, and in the color light switching step, the control unit controls the moving mechanism based on the optical path information and the rotation position of the color synthesizing optical device or the position adjusting device. The same operational effects as those of the optical device manufacturing apparatus can be obtained.

In the method of manufacturing an optical device according to the aspect of the invention, the control unit drives and controls the rotation unit, and the setting input step adjusts the plurality of light modulation devices that constitute the optical device in addition to the optical path information. Adjustment order information related to the order is set and input, and the rotation step is based on the optical path information and adjustment order information set and input in the setting input step and the rotation position of the color synthesizing optical device or the position adjustment device. The controller combines the color synthesizing optical device at each optical path position of the plurality of color lights according to the model of the optical device based on the optical path information in the adjustment order of the plurality of light modulation devices based on the adjustment order information. It is preferable that the rotation unit is driven and controlled so that the rotation positions of the position adjusting device are sequentially positioned.
According to the present invention, in the setting input step, adjustment order information is set and inputted in addition to the optical path information, and in the rotation step, control is performed based on the optical path information and the adjustment order information and the rotation position of the color synthesizing optical device or the position adjustment device. Since the unit controls the driving of the rotating unit, the same operational effects as those of the above-described optical device manufacturing apparatus can be obtained.

In the manufacturing method of the optical device of the present invention, image light emitted through the light modulation device and the color synthesis optical device is detected by a light beam detection device, and the position adjustment device is driven and controlled by a control unit, A light beam detecting step for detecting image light emitted through the light modulation device and the color synthesizing optical device with the light beam detecting device; and the position adjusting step includes the image light detected in the light beam detecting step. Is acquired by the control unit and converted into an image signal, and the control unit performs image processing based on the converted image signal to determine the optimal posture position of the light modulation device, and based on the determined optimal posture position It is preferable that the control unit drives and controls the position adjusting device to adjust the position of the light modulation device with respect to the color combining optical device.
Here, as the light beam detecting device, the same light beam detecting device as that of the manufacturing apparatus described above can be adopted.
According to the present invention, in the position adjustment step, the control unit determines the optimum posture position of the light modulation device based on the image light detected by the light beam detection device, and determines the position adjustment device based on the determined posture optimum position. Since the drive control is performed, the same operational effects as those of the optical device manufacturing apparatus described above can be obtained.
Further, if the control unit performs drive control of the position adjustment device, and if it is configured to perform drive control of the light source device main body, the sliding unit, the light beam detection device, and the rotation unit, the rotation process, the light beam introduction The process, the light flux detection process, the color light switching process, and the position adjustment process can be executed by the control unit. That is, most of the manufacturing method of the optical device can be executed by the control unit, and the optical device can be manufactured easily and quickly without causing the operator to perform complicated operations.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[1. (Main configuration of rear projector)
FIG. 1 is a cross-sectional view from the side of a rear projector according to an embodiment of the present invention. FIG. 2 is a plan view showing an example of an optical unit including an optical device incorporated in the rear projector.
In FIG. 1, reference numeral 100 denotes a rear projector. The rear projector 100 generates an optical image and projects it, a reflection mirror 300 that reflects the optical image projected from the optical unit 400, and a reflection. The transmissive screen 200 that projects an optical image via the mirror 300 and the exterior casing 500 in which the optical unit 400, the reflective mirror 300, and the transmissive screen 200 are arranged are roughly configured.
As shown in FIG. 2, the optical unit 400 (4001) includes an integrator illumination optical system 410, a color separation optical device 420, a relay optical system 430, an optical device 440, and an optical component housing 450.
As shown in FIG. 2, the integrator illumination optical system 410 includes a light source device 411 including a light source lamp 411A and a reflector 411B, a first lens array 412, a second lens array 413, a polarization conversion element 414, and a superimposing lens 415. With.

  The light beam emitted from the light source lamp 411A is aligned in the emission direction by the reflector 411B, is divided into a plurality of partial light beams by the first lens array 412, and forms an image in the vicinity of the second lens array 413. Further, each partial light side emitted from the second lens array 413 is converted into substantially one type of polarized light by the polarization conversion element 414 and is incident on the superimposing lens 415. Further, the plurality of partial light beams emitted from the superimposing lens 415 are superimposed on a light modulation device (liquid crystal panel), which will be described later, constituting the optical device 440.

As shown in FIG. 2, the color separation optical device 420 includes two dichroic mirrors 421 and 422 and a reflection mirror 423. The dichroic mirrors 421 and 422 have a function of separating a plurality of partial light beams emitted from the integrator illumination optical system 410 into three color lights of red (R), green (G), and blue (B). .
As shown in FIG. 2, the relay optical system 430 includes an incident side lens 431, a relay lens 433, and reflection mirrors 432 and 434, and optically converts red light, which is color light separated by the color separation optical device 420. The device 440 has a function of leading to a red light modulation device which will be described later.

The optical device 440 modulates the three color lights emitted from the color separation optical device 420 in accordance with image information, combines the modulated color lights, forms a color image, and projects the enlarged color image. As shown in FIG. 2, the optical device 440 includes three light modulation devices 441 (a light modulation device for red light 441R, a light modulation device for green light 441G, and a light modulation device 441G having a liquid crystal panel 4411 (see FIG. 3)). A light modulating device for blue light is assumed to be 441B), an incident-side polarizing plate 442 and an emitting-side polarizing plate 443 disposed on the light-incident side and light-emitting side of these light modulating devices 441, respectively, and a color combining optical device The cross dichroic prism 444 (4441), a projection lens 445, and a head body 446 are provided. Of these, the three light modulation devices 441, the three exit-side polarizing plates 443, and the cross dichroic prism 444 (4441) are integrated to form the electro-optical device 440A (see FIG. 3), and the head body. By 446, the electro-optical device 440A and the projection lens 445 are integrated to form the optical device main body 440B (440B1). Detailed structures of the electro-optical device 440A and the optical device main body 440B (440B1) will be described later.
The electro-optical device 440A employs a configuration in which the three incident-side polarizing plates 442 are integrated in addition to the three light modulation devices 441, the three emission-side polarizing plates 443, and the cross dichroic prism 444 (4441). Also good.

The incident-side polarizing plate 442 receives light of each color whose polarization direction is aligned in approximately one direction by the polarization conversion element 414. Of the incident light beams, the polarization axis of the light beams aligned by the polarization conversion element 414 is substantially the same. Only polarized light in the direction is transmitted, and other light beams are absorbed. The incident-side polarizing plate 442 has a configuration in which a polarizing film is pasted on a translucent substrate such as sapphire glass or quartz.
Although not specifically shown, the liquid crystal panel 4411 constituting the light modulation device 441 has a configuration in which a liquid crystal as an electro-optical material is hermetically sealed between a pair of transparent glass substrates, and is output from a control substrate (not shown) The alignment state of the liquid crystal is controlled in accordance with the drive signal to modulate the polarization direction of the polarized light beam emitted from the incident side polarizing plate 442.

The exit-side polarizing plate 443 has substantially the same configuration as the incident-side polarizing plate 442, and has a polarization axis that is orthogonal to the transmission axis of the light flux in the incident-side polarizing plate 442 among the light beams emitted from the light modulation device 441. Only transmits light and absorbs other light fluxes.
The cross dichroic prism 444 (4441) is an optical element that forms a color image by synthesizing an optical image modulated for each color light emitted from the emission-side polarizing plate 443. The cross dichroic prism 444 (4441) has a square shape in plan view in which four right-angle prisms are bonded together, and two dielectric multilayer films 444A and 444B are formed at the interface where the right-angle prisms are bonded together. . The dielectric multilayer film 444A reflects only red light and transmits other color light. The dielectric multilayer film 444B reflects only blue light and transmits other color light. The dielectric multilayer films 444A and 444B reflect the color light emitted from the light modulation devices 441R and 441B and reflected through the emission side polarizing plate 443, and emitted from the light modulation device 441G and colored light via the emission side polarizing plate 443. Transparent. In this manner, the color lights modulated by the light modulation devices 441R, 441G, and 441B are combined to form a color image.

  The projection lens 445 is disposed on the light beam exit side of the cross dichroic prism 444 (4441), enlarges the color image emitted from the cross dichroic prism 444 (4441), and faces the reflection mirror 300, that is, in the forward direction. The color image ejected on the screen is bent upward and projected. As the projection lens 445, a projection lens having a different projection angle is used as appropriate according to the manufacturing model of the rear projector 100, for example, the screen size of the rear projector 100.

  The head body 446 is made of, for example, a metal material such as an aluminum alloy or a magnesium alloy. The head body 446 integrates the electro-optical device 440A and the projection lens 445, and the integrated optical device body 440B (440B1) is an optical component housing 450. It attaches to. The detailed structure of the optical device main body 440B (440B1) will be described later. The detailed structures of the projection lens 445 and the head body 446 will also be described at the same time as the detailed structure of the optical device main body 440B (440B1).

As shown in FIG. 2, a predetermined illumination optical axis A is set inside the optical component casing 450, and the optical components 410 to 430 and 442 and the optical device main body 440B described above are placed at predetermined positions with respect to the illumination optical axis A. Deploy. As shown in FIG. 2, the optical component housing 450 includes a light source device storage member 451, a component storage member 452, and a lid-like member (not shown).
As illustrated in FIG. 2, the light source device storage member 451 is a housing that stores the light source device 411 therein, and is configured to be connectable to the component storage member 452.
As shown in FIG. 2, the component storage member 452 is formed in a container shape having an upper side opened, one end connected to the light source device storage member 451, and the other end side having a substantially U shape in plan view. 412 to 415, 421 to 423, 431 to 434, and 442 are accommodated and disposed inside, and the optical device main body 440B (440B1) is disposed in the U-shaped inner portion in plan view on the other end side.
In the component storage member 452, a support portion 452A for mounting and fixing the optical device main body 440B (440B1) is formed at the U-shaped tip portion on the other end side as shown in FIG. The upper surface of the support portion 452A functions as a support surface, and the optical device main body 440B (440B1) is placed and fixed on the support surface. Further, although not shown, a fixing hole for mounting and fixing the optical device main body 440B (440B1) is formed on the upper surface of the support portion 452A. As described above, when the optical device main body 440B (440B1) is placed and fixed on the support portion 452A, the electro-optical device 440A is disposed on the U-shaped inner portion on the other end side as shown in FIG.

Further, in this component storage member 452, the end surface of the U-shaped inner portion on the other end side corresponds to the end surface of the cross dichroic prism 444 (4441) arranged on the U-shaped inner portion, An opening 452B for allowing the light beam to pass through is formed, and the incident-side polarizing plate 442 is attached so as to close the opening 452B.
Further, in the component storage member 452, an opening 452C for allowing the light beam emitted from the light source device 411 to pass is formed on one end side, and the first lens array 412 is attached so as to close the opening 452C. It is done.
Furthermore, in this component storage member 452, grooves, protrusions, and the like are formed inside the side surfaces, and optical components 413 to 415, 421 to 423, 431 to 434 are attached to these grooves and protrusions.
The lid-like member is a member that closes the opening portion on the upper side of the component storage member 452 and has a shape corresponding to the planar shape of the component storage member 452.

The reflection mirror 300 is a general reflection mirror that is disposed on the back side of the outer casing 500 of the rear projector 100 and is formed in a substantially trapezoidal shape. As shown in FIG. 1, the reflection mirror 300 reflects the color image projected from the optical unit 400 to the back side of the transmissive screen 200.
The transmissive screen 200 is a general rectangular transmissive screen, and includes, for example, a diffusion plate, a Fresnel sheet, a lenticular sheet, and a protective plate from the back side. The transmissive screen 200 projects the color image magnified by the optical unit 400 and reflected by the reflection mirror 300 from the back side to the front side.

[2. Structure of the optical device body]
FIG. 3 is an exploded perspective view showing an example of the structure of the optical device main body 440B (440B1).
As described above, the optical device main body 440B (440B1) is a unit in which the electro-optical device 440A and the projection lens 445 are integrated by the head body 446.

[2-1. Structure of electro-optical device
The electro-optical device 440A is obtained by integrating three light modulation devices 441, three exit-side polarizing plates 443, and a cross dichroic prism 444 (4441) as described below.
As shown in FIG. 3, the three exit-side polarizing plates 443 are fixed to the light-incident-side end surface of the cross dichroic prism 444 (4441) with an adhesive or the like. In FIG. 3, only the emission side polarizing plate 443 on the green light side is shown, but the emission side polarizing plates 443 on the other blue light side and red light side are also on the light beam incident sides of the cross dichroic prism 444 (4441). It is fixed to the end face.
As shown in FIG. 3, the three light modulation devices 441 are made of UV-curable adhesive pins 4413 made of transparent resin in the holes 4412 </ b> A at the four corners of the holding frame 4412 in a state where each liquid crystal panel 4411 is housed in the holding frame 4412. By being inserted together with the agent, it is bonded and fixed to the light beam incident side end surface of the cross dichroic prism 444 (4441).

[2-2. Projection lens structure
As shown in FIG. 3, the projection lens 445 has a configuration in which a plurality of lenses and a mirror for deflecting an incident light beam are accommodated in a lens barrel 4451.
As shown in FIG. 3, the lens barrel 4451 has a shape that extends in the horizontal direction and has a distal end portion bent upward, and has a flange 4442 at the proximal end portion.
As shown in FIG. 3, the flange 4452 is configured by a plate body having a substantially rectangular shape in plan view, and is a portion for connecting to the head body 446.
In the flange 4452, a circular opening 4452A for allowing an optical image emitted from the electro-optical device 440A to pass therethrough is formed at a substantially central portion in plan view as shown in FIG.
Further, as shown in FIG. 3, the flange 4452 is formed with fixing holes 4452B for connection to the head body 446 at the four corners.

[2-3. (Head structure)
As shown in FIG. 3, the head body 446 has a substantially L shape in a side view, and each L-shaped end portion functions as an electro-optical device mounting portion 4461 and a projection optical device support portion 4462, respectively.
The electro-optical device mounting portion 4461 is an L-shaped horizontal portion of the head body 446, has a substantially rectangular shape in plan view, and supports the lower surface of the cross dichroic prism 444 (4441) constituting the electro-optical device 440A.
In the electro-optical device mounting portion 4461, a spherical bulging portion 4461A is formed at a substantially central portion of the upper surface that contacts the cross dichroic prism 444 (4441). Then, by bringing the lower surface of the cross dichroic prism 444 (4441) into contact with the bulging portion 4461A, the position of the cross dichroic prism 444 (4441) in the tilt direction with respect to the head body 446 can be adjusted.

As shown in FIG. 3, the projection optical device support portion 4462 is an L-shaped vertical portion of the head body 446, has a substantially rectangular shape in plan view, supports the projection lens 445, and is an integrated optical device body 440B. This is a portion for fixing (440B1) to the optical component casing 450.
In the projection optical device support portion 4462, an opening 4462A for light beam transmission is formed at a substantially central portion in plan view, as shown in FIG.
Further, in the projection optical device support portion 4462, fixing holes 4462B are formed at the four corners so as to correspond to the fixing holes 4452B of the flange 4452, as shown in FIG. The projection lens 445 is connected and fixed to the head body 446 by screwing the fixing screw 4464 into the fixing hole 4462B of the projection optical device support portion 4462 through the fixing hole 4442B of the flange 4452 of the projection lens 445. .

Further, in the projection optical device support portion 4462, at the opposing positions on the upper side of the both ends in the left-right direction, as shown in FIG. 3, the optical device main body 440B (440B1) is extended to the optical component. A pair of upright pieces 4462C for fixing to the housing 450 is formed.
These standing pieces 4462C have a substantially flat end on the lower end, and the lower end faces the support surface of the support portion 452A (FIG. 2) of the component storage member 452 constituting the optical component casing 450. Touch. As shown in FIG. 2 or FIG. 3, these standing pieces 4462 </ b> C are formed with fixing holes 4462 </ b> C <b> 1 that pass through the upper end surface and the lower end surface and fix the standing piece 4462 </ b> C to the component storage member 452. ing. Then, with the upright piece 4462C of the optical device main body 440B (440B1) placed on the support surface of the support portion 452A of the component storage member 452, a screw (not shown) is supported through the fixing hole 4462C1. The optical device main body 440B (440B1) is connected and fixed to the optical component case 450 by being screwed into a screw hole (not shown) formed in the above.

  When manufacturing the optical device main body 440B (440B1) having the above-described configuration, a manufacturing device described later is used.

[3. Configuration of optical device body to be manufactured)
The manufacturing object of the manufacturing apparatus to be described later is not limited to the above-described optical apparatus body 440B1, but includes, for example, optical apparatus bodies 440B2 to 440B6 mounted on the optical units 4002 to 4006 described below.
4 to 8 are plan views schematically showing another configuration of the optical device main body to be manufactured.
Optical units 4002 to 4006 shown below have optical paths different from the optical paths of the three color lights set in the optical unit 4001 described above. The configuration other than the difference in the optical path is substantially the same as the optical unit 4001 described above.

An optical unit 4002 shown in FIG. 4 is configured such that the optical path of red light and the optical path of blue light are set opposite to each other and the optical path length of blue light is set longer than that of the optical unit 4001 described above. That is, as shown in FIG. 4, the dichroic mirror 4212 reflects red light and transmits other color light, and the dichroic mirror 4222 reflects green light and transmits other blue light. Then, the blue light is guided to the light modulation device 441B by the relay optical system 430.
By the optical path setting as described above, the optical device main body 440B2 mounted on the optical unit 4002 has three light modulation devices 441R, 441G, 441B out of the optical device main body 440B1 as shown in FIG. The arrangement positions of the light modulation devices 441R and 441B are set in reverse. Further, the cross dichroic prism 4442 is also set so that the positions of the two dielectric multilayer films 444A and 444B are reversed with respect to the cross dichroic prism 4441 described above, as shown in FIG.

An optical unit 4003 shown in FIG. 5 is configured such that the optical path of red light and the optical path of green light are set opposite to each other and the optical path length of green light is set longer than that of the optical unit 4001 described above. That is, as shown in FIG. 5, the dichroic mirror 421 reflects blue light and transmits other color light, and the dichroic mirror 4212 reflects red light and transmits other green light. Then, the green light is guided to the light modulation device 441G by the relay optical system 430.
With the optical path setting as described above, the optical device main body 440B3 mounted on the optical unit 4003 has three light modulation devices 441R, 441G, 441B out of the optical device main body 440B1 as shown in FIG. The arrangement positions of the light modulation devices 441R and 441G are set in reverse. Further, the cross dichroic prism 4443 also has a dielectric multilayer film that reflects only green light and transmits other color light, in addition to the dielectric multilayer film 444B, as shown in FIG. 5, with respect to the cross dichroic prism 4441 described above. 444C is used.

An optical unit 4004 shown in FIG. 6 is configured such that the optical path of red light and the optical path of blue light are set opposite to those of the optical unit 4003 described above. That is, as shown in FIG. 6, the dichroic mirror 4212 reflects red light and transmits other color light, and the dichroic mirror 421 reflects blue light and transmits other green light.
With the optical path setting as described above, the optical device main body 440B4 mounted on the optical unit 4004 has three light modulation devices 441R, 441G, 441B out of the optical device main body 440B3 as shown in FIG. The arrangement positions of the light modulation devices 441R and 441B are set in reverse. Further, the cross dichroic prism 4444 also uses a dielectric multilayer film 444A in addition to the dielectric multilayer film 444C as shown in FIG. 8 in contrast to the above-described cross dichroic prism 4443.

The optical unit 4005 shown in FIG. 7 is configured such that the optical path of green light and the optical path of blue light are set opposite to those of the optical unit 4001 described above. That is, as shown in FIG. 7, the dichroic mirror 4215 reflects only green light and transmits other color light, and the dichroic mirror 421 reflects blue light and transmits other red light.
By the optical path setting as described above, the optical device main body 440B5 mounted on the optical unit 4005 is lighted out of the three light modulation devices 441R, 441G, and 441B with respect to the optical device main body 440B1 as shown in FIG. The arrangement positions of the modulation devices 441G and 441B are set in reverse. As shown in FIG. 5, the cross dichroic prism 4445 uses a dielectric multilayer film 444C in addition to the dielectric multilayer film 444A.

An optical unit 4006 shown in FIG. 8 is configured such that the optical path of red light and the optical path of blue light are set opposite to each other and the optical path length of blue light is set longer than that of the optical unit 4005 described above. That is, as shown in FIG. 8, only the green light is reflected by the dichroic mirror 4215 and the other color light is transmitted, and the red light is reflected by the dichroic mirror 4212 and the other blue light is transmitted. Then, the blue light is guided to the light modulation device 441B by the relay optical system 430.
With the optical path setting as described above, the optical device main body 440B6 mounted on the optical unit 4006 has three light modulation devices 441R, 441G, 441B out of the optical device main body 440B5 described above, as shown in FIG. The arrangement positions of the light modulation devices 441R and 441B are set in reverse. Further, the cross dichroic prism 4446 also uses a dielectric multilayer film 444B in addition to the dielectric multilayer film 444C as shown in FIG. 8 in contrast to the above-described cross dichroic prism 4445.

  As described above, various optical units 4001 to 4006 are used according to the model of the rear projector 100, and the manufacturing apparatus shown below includes six types of optical device main bodies 440B1 to 440B6 mounted on these optical units 4001 to 4006. It is configured to be manufacturable.

[4. Structure of manufacturing device for optical device body]
9 and 10 are diagrams showing the manufacturing apparatus 1 of the optical device main body 440B.
The manufacturing apparatus 1 manufactures the optical device body 440B by adjusting the positions of the three light modulation devices 441 with respect to the cross dichroic prism 444 and fixing the three light modulation devices 441 to the cross dichroic prism 444. is there. As shown in FIG. 9 or FIG. 10, the manufacturing apparatus 1 includes an adjustment unit main body 2, a projection unit main body 3, an adjustment light source device 5 (see FIG. 13 or FIG. 14), and a control device 6 (see FIG. 17). ).

[4-1. (Adjustment body structure)
As shown in FIG. 9 or 10, the adjustment unit main body 2 includes a frame portion 21 that is framed in a cubic shape on the support base 20, a six-axis position adjustment unit 22 as a position adjustment device for the light modulation device 441, It has a clamp jig 23 as a holding portion for supporting and fixing the optical device main body 440B, and a rotation device 26.
The frame portion 21 is fitted with a bottom plate 211, a side plate (not shown), and a top plate (not shown). In FIG. 9, a part of the frame portion 21 is broken so that the constituent members of the manufacturing apparatus 1 can be easily illustrated.
On the bottom plate 211, a six-axis position adjustment unit 22, a clamp jig 23, and a rotation device 26 are installed.
The side plate is provided with a door (not shown) that is openable and closable, and material supply / removal of the optical device main body 440B is performed through the door.
Although not shown in the drawings, the adjustment light source device 5 (refer to FIG. 13 or FIG. 14), the control device 6 (refer to FIG. 17), and the optical device by curing the ultraviolet curable adhesive are provided below the support base 20. A fixing ultraviolet light source device for fixing the light modulation device 441 of the main body 440B on the cross dichroic prism 444 is provided.

[4-1-1.6 Structure of 6-axis position adjustment unit]
FIG. 11 is a side view showing the structure of the six-axis position adjustment unit 22. In FIG. 11, for convenience of explanation, the optical axis of the light beam incident on the light modulation device 441 is the Z axis, and two axes orthogonal to the Z axis are the X axis and the Y axis, respectively.
The six-axis position adjustment unit 22 adjusts the positions of the light modulation devices 441R, 441G, and 441B with respect to the light beam incident side end surface of the cross dichroic prism 444. As shown in FIG. 11, the six-axis position adjustment unit 22 is provided at a planar position adjustment unit 221 installed on a later-described six-axis position adjustment unit rotating device 262 and at a tip portion of the planar position adjustment unit 221. The in-plane rotation position adjustment unit 223, the out-of-plane rotation position adjustment unit 225 provided at the tip portion of the in-plane rotation position adjustment unit 223, and the light modulation device provided at the tip portion of the out-of-plane rotation position adjustment unit 225 Holding part 227.

The planar position adjustment unit 221 is a part that adjusts the advance / retreat position and the planar position of the cross dichroic prism 444 with respect to the light beam incident side end surface. As shown in FIG. 11, the planar position adjusting unit 221 is provided at a base 221A, a leg 221B standing on the base 221A, and an upper tip portion of the leg 221B to adjust the in-plane rotational position. And a connection part 221C to which the part 223 is connected.
The base portion 221A is installed on the upper surface of a plate-like portion 262A of a 6-axis position adjusting unit rotating device 262 to be described later, and is configured to be slidable on a rail (not shown) formed on the plate-like portion 262A. The base portion 221A is moved in the Z-axis direction (left and right direction in FIG. 11) of the plate-like portion 262A by a driving unit such as a motor (not shown).
The leg portion 221B is moved in the X-axis direction (a direction orthogonal to the paper surface in FIG. 11) with respect to the base portion 221A by a driving portion such as a motor (not shown) provided on the side portion.
The connecting portion 221C is moved in the Y-axis direction (vertical direction in FIG. 11) with respect to the leg portion 221B by a driving portion such as a motor (not shown).

The in-plane rotation position adjustment unit 223 is a part that adjusts the in-plane rotation position of the light modulation device 441 with respect to the light beam incident side end surface of the cross dichroic prism 444. As shown in FIG. 11, the in-plane rotation position adjustment unit 223 includes a columnar base 223A fixed to the tip portion of the plane position adjustment unit 221, and a rotation provided so as to be rotatable in the circumferential direction of the base 223A. And an adjustment unit 223B.
Among them, the rotation adjusting unit 223B is adjusted in rotational position by a driving unit such as a motor (not shown), and adjusts the rotational position in the in-plane direction of the light modulation device 441 with respect to the light beam incident side end surface of the cross dichroic prism 444 with high accuracy. .

  The out-of-plane rotation position adjustment unit 225 is a part that adjusts the out-of-plane rotation position of the light modulation device 441 with respect to the light incident side end surface of the cross dichroic prism 444. As shown in FIG. 11, the out-of-plane rotational position adjustment unit 225 is fixed to the distal end portion of the in-plane rotational position adjustment unit 223, and has a base 225A in which a concave curved surface that is a circular arc in the horizontal direction is formed at the distal end portion. A first adjustment portion 225B provided on the concave portion of the base portion 225A so as to be slidable along an arc, and having a concave curved surface formed in the vertical direction at the tip portion, and the first adjustment portion 225B And a second adjusting portion 225C provided so as to be slidable along the arc on the concave curved surface. The first adjustment unit 225B slides by a drive unit such as a motor (not shown) provided on the side of the base 225A, and a drive unit such as a motor (not shown) provided on the top of the first adjustment unit 225B. The second adjustment unit 225C slides, and the rotational position in the out-of-plane direction of the light modulation device 441 with respect to the light incident side end surface of the cross dichroic prism 444 can be adjusted with high accuracy.

  The light modulation device holding unit 227 is a portion that holds the light modulation device 441 of the optical device main body 440B to be manufactured. The light modulation device holding unit 227 includes four column members 227A protruding from the tip of the second adjustment unit 225C, a base material 227B fixed via the column members 227A, and a tip side of the base material 227B. A base 227C to be fixed by screwing, a pad 227D that comes into contact with the light modulation device 441, is housed so that the tip portion protrudes from the base 227C, and the light modulation device 441 is vacuum-adsorbed through the pad 227D. And a suction device 227E.

FIG. 12 is a plan view of the base portion 227C of the light modulation device holding portion 227 as viewed from the front.
The base 227C is a hollow member having a convex cross section with a central portion protruding.
In the base portion 227C, an adjustment light source hole 227C1 set according to a corner portion of the rectangular image forming area of the light modulation device 441 is provided at a substantially central portion of the rectangular tip surface of the protruding portion 2271, and A light source hole 227C2 for fixing that is arranged outside the adjustment light source hole 227C1 and is set according to the positions of the four corner holes 4412A of the holding frame 4412 of the light modulation device 441, and a pad disposed inside the light source hole for adjustment 227C1. A cross-shaped hole 227C3 for exposing 227D is formed.
Although not shown, the fixing light source hole 227C2 is in contact with a tip portion of an optical fiber that is connected to the fixing light source device and guides ultraviolet rays emitted from the fixing light source device. The ultraviolet light emitted from the fixing light source device is guided through an optical fiber and emitted from the fixing light source hole 227C2.
In addition, four screw holes 227C4 are formed in the projecting portion 2272 projecting outward on the rear side of the base portion 227C, and by inserting screws (not shown) into the four screw holes 227C4, the base portion 227C becomes a base material. Screwed to 227B.

  The pad 227D is a porous and elastic elastic member. The pad 227D protrudes by a predetermined dimension from a main body portion (not shown) accommodated in the base portion 227C and the main end portion. And a cross portion 227D1 formed in a cross shape with dimensions corresponding to 227C3. When such a pad 227D is attached to the base 227C, the cross portion 227D1 protrudes from the front end surface of the base 227C. For this reason, the light modulation device 441 does not contact the base 227C but contacts only the cross portion 227D1 of the pad 227D.

  Although not specifically shown, the suction device 227E is connected to the vicinity of the base 227C and the pad 227D via a predetermined air hose 227E1, as shown in FIG. 11, and the light modulator 441 is attached to the pad 227D by vacuum suction. Is to be held.

[Structure of rotating device]
As shown in FIG. 10, the rotating device 26 includes a clamp jig rotating device 261 for rotating the clamp jig 23 to which the optical device main body 440B is supported and fixed in a display surface direction of a screen member 312 described later, A six-axis position adjusting unit rotating device 262 as a rotating unit that rotates the shaft position adjusting unit 22 in the direction of the display surface of the screen member 312 and the direction surrounding the clamp jig 23 is provided.
The clamp jig rotating device 261 includes a plate-like portion 261A to which the clamp jig 23 is fixed, and a screw portion 261B that is screwed into the plate-like portion 261A and is erected on the bottom plate 211. The tip of the plate-like portion 261A is connected to the bottom plate 211 via a hinge, and when a motor (not shown) connected to the screw portion 261B is driven, the screw portion 261B rotates, whereby the plate-like portion 261A is moved to the screen. It rotates in the direction of the member 312. As the motor, a commonly used pulse motor or servo motor can be used.

The 6-axis position adjustment unit rotating device 262 has the same structure as the clamp jig rotating device 261, and includes a plate-like portion 262A connected to the base portion 262C via a hinge, a screw portion 262B, and a motor (not shown). When the motor is driven, the screw portion 262B rotates, and the plate-like portion 262A rotates in the direction of the screen member 312.
Further, the base 262C of the six-axis position adjusting unit rotating device 262 is configured to be slidable on the rail 211A (see FIG. 21) of the bottom plate 211. The rail 211 </ b> A extends so as to surround the clamp jig 23. When a motor (not shown) connected to the base portion 262C is driven, the base portion 262C slides on the rail 211A, and the light modulation device 441 held by the six-axis position adjustment unit 22 enters the predetermined light flux of the cross dichroic prism 444. The 6-axis position adjustment unit 22 rotates in the direction of arrow R in FIG. 9 so as to face the side end face.
The motors of the 6-axis position adjustment unit rotating device 262 and the clamp jig rotating device 261 are controlled by the control device 6.
In the present embodiment, the clamp jig rotating device 261 and the six-axis position adjusting unit rotating device 262 are driven by the motor, but a configuration of manually rotating the clamp jig rotating device 261 and the six-axis position adjusting unit rotating device 262 may be adopted.

[4-2. Structure of light source device for adjustment]
FIG. 13 is a perspective view showing an external configuration of the adjustment light source device 5.
FIG. 14 is a plan view schematically showing the internal structure of the adjustment light source device 5.
The adjustment light source device 5 introduces an adjustment light beam into the light modulation device 441 of the optical device main body 440B to be manufactured. The adjustment light source device 5 includes a light source device main body 51, an optical fiber 52 (FIG. 14) as a light guide unit, and a moving mechanism 53.

[4-2-1. Structure of light source device body]
As shown in FIG. 14, the light source device main body 51 includes a light source lamp unit 511, a power supply unit 512, a color separation optical device 513, a total light shielding unit 514, a light amount adjusting unit 515, a color light shielding unit 516, and the like. A light source lamp unit 511, a power supply unit 512, a color separation optical device 513, a total light shielding unit 514, a light amount adjusting unit 515, and a color light shielding unit 516, and a light source device housing 517 that accommodates and arranges the color light shielding unit 516.
Although not shown, the light source device main body 51 includes a cooling device such as a cooling fan for cooling the light source lamp unit 511 and / or the power supply unit 512 in addition to the configuration described above.

The light source lamp unit 511 emits white light. As shown in FIG. 14, a light emitting tube 5111 serving as a radiation light source, a reflector 5112 that emits light emitted from the light emitting tube 5111 in an aligned manner, and light emission A lamp housing 5113 that houses and arranges the tube 5111 and the reflector 5112 at a predetermined position inside, and an explosion-proof glass 5114 that is arranged on the light emission side of the lamp housing 5113 so as to close the opening of the reflector 5112.
The light source lamp unit 511 includes a high-intensity UHP (Ultra High Performance) lamp having a lamp output of 320 W. Thus, by using the light source lamp unit 511 having a high lamp output, the illuminance of the light beam emitted from the adjustment light source device 5 can be increased. In the present embodiment, the light source lamp unit 511 has a lamp output of 320 W. However, the light source lamp unit 511 is not limited to this. The illuminance of the emitted light beam can be sufficiently increased.

The power supply unit 512 supplies electric power supplied from the outside to members constituting the adjustment light source device 5. As shown in FIG. 14, the power supply unit 512 includes a power supply device 5121 and a lamp driving circuit 5122.
The power supply device 5121 supplies power supplied from the outside through a power cable (not shown) to the lamp driving circuit 5122, all the light shielding portions 514, the cooling device, and the like.
The lamp driving circuit 5122 supplies power supplied from the power supply device 5121 to the arc tube 5111 of the light source lamp unit 511 and is electrically connected to the light source lamp unit 511.

The color separation optical device 513 guides the light beam emitted from the light source lamp unit 511 and separates it into three color lights. As shown in FIG. 14, the color separation optical device 513 includes a condenser lens 5131, reflection mirrors 5132 and 5135 to 5139, and dichroic mirrors 5133 and 5134, and the white light emitted from the light source lamp unit 511 is red. It has a function of separating light into three colors of green and blue.
Specifically, as shown in FIG. 14, the condensing lens 5131 has a function of condensing the light beam emitted from the light source lamp unit 511 at three emission positions R1, G1, and B1. The light beam that has passed through the condenser lens 5131 is deflected by approximately 90 ° by the reflection mirror 5132 and then enters the dichroic mirror 5133. The dichroic mirror 5133 transmits the red light component of the incident light beam and reflects the green light component and the blue light component. The red light transmitted through the dichroic mirror 5133 is reflected by the reflection mirrors 5138 and 5139 and is collected at the emission position R1.
Of the green light and blue light reflected by the dichroic mirror 5133, the green light is reflected by the dichroic mirror 5134, is further reflected by the reflection mirrors 5135 and 5136, and is collected at the emission position G1. On the other hand, the blue light passes through the dichroic mirror 5134, is reflected by the reflection mirror 5137, and is condensed at the emission position B1.

  The total light shielding portion 514 is configured by a plate-shaped light shielding member, and is configured to be able to block all light beams emitted from the light source lamp unit 511. As shown in FIG. 14, the total light shielding portion 514 is disposed between the reflection mirror 5132 and the dichroic mirror 5133, and a light shielding position for shielding the light beam emitted from the reflection mirror 5132 by a driving portion such as a motor (not shown). And the non-light-shielding position which is not light-shielded is comprised so that sliding movement is possible.

  The light amount adjustment unit 515 includes three light amount adjustment units 515R, 515G, and 515B corresponding to the three color lights separated by the color separation optical device 513, and is disposed on the rear side of the optical path of the reflection mirrors 5139, 5136, and 5137, respectively. Be placed. The light amount adjustment unit 515 is an optical stop and is configured to be able to adjust the light amounts of the three color lights separated by the color separation optical device 513.

FIG. 15 is a plan view of the light amount adjustment unit 515 viewed from the optical axis direction.
The light amount adjustment unit 515 is configured by a plate-shaped light shielding member, and is configured to be rotatable about a rotation shaft 5151 as shown in FIG.
As shown in FIG. 15, the light amount adjusting unit 515 is formed with an opening 5152 that passes through the illumination optical axis B in the light source device main body 51 and extends in the rotation direction of the light amount adjusting unit 515. The opening 5152 has a shape that becomes gradually narrower from one end 5152A to the other end 5152B in the rotation direction. That is, when the light amount adjustment unit 515 rotates about the rotation shaft 5151 and the one end 5152A of the opening 5152 is disposed at the position of the illumination optical axis B, the light amount adjustment unit 515 is reflected by the reflection mirrors 5136, 5137, and 5139. All the luminous flux L is transmitted. Also, from this state, the light amount adjustment unit 515 rotates about the rotation shaft 5151 and is reflected by the reflection mirrors 5136, 5137, and 5139 as the other end 5152B of the opening 5152 approaches the position of the illumination optical axis B. The light beam L is shielded at the peripheral portion of the opening 5152, and the light amount of the light beam L is reduced.
The light amount adjustment unit 515 is configured to be rotatable about a rotation shaft 5151 by a drive unit such as a motor (not shown).

As shown in FIG. 14, the color light shielding unit 516 includes three color light shielding units 516 R, 516 G, and 516 B corresponding to the three color lights separated by the color separation optical device 513. It is arranged in the latter part of the optical path.
The color light blocking unit 516 is configured by a plate-shaped light blocking member, and is configured to be able to block color light via the light amount adjusting unit 515. As shown in FIG. 14, the color light shielding unit 516 includes a solenoid actuator 5161 that is a driving unit. When the solenoid actuator 5161 is driven, the color light shielding unit 515 shields the color light via the light amount adjusting unit 515 and does not block the light. The non-light shielding position is configured to be rotatable.

As shown in FIG. 13 or FIG. 14, the light source device casing 517 has a rectangular parallelepiped shape, and corresponds to three positions of the emission positions R1, G1, and B1 (FIG. 14) on one side of the rectangular parallelepiped shape. Three openings 5171 are provided. Then, the three color lights emitted from the light source lamp unit 511 and separated by the color separation optical device 513 are emitted to the outside through the openings 5171.
Further, a concave portion 5172 that is recessed toward the light beam incident side and extends in the horizontal direction is formed at a position surrounding the three openings 5171 on the one side surface.
Further, as shown in FIG. 13, a lamp replacement lid 5173 is provided on the upper surface of the light source device casing 517 corresponding to the position of the light source lamp unit 511 inside, and the lamp replacement lid 5173 is removed. Thus, the light source lamp unit 511 is replaced.

[4-2-2. Optical fiber structure)
The optical fiber 52 guides each color light emitted from the light source device main body 51 to a predetermined position. A base 521 is attached to an end portion of the optical fiber 52 on the light beam incident side, and the base 521 is attached to an optical fiber attachment portion described later of the moving mechanism 53.
The optical fiber 52 is branched into four ends on the light beam exit side, and is connected to the base material 227B and the base portion 227C of the light modulation device holding portion 227 constituting the 6-axis position adjusting unit 22 as shown in FIG. , The front end portion comes into contact with the four adjustment light source holes 227C1 of the base portion 227C. The adjustment light beam guided by the optical fiber 52 is emitted from the adjustment light source hole 227C1 and is applied to the four corners of the image forming area in the light modulation device 441.

[4-2-3. Structure of moving mechanism)
The moving mechanism 53 is provided on one side of the rectangular parallelepiped shape of the light source device casing 517, and moves the light beam incident side end of the optical fiber 52 to three emission positions R1, G1, and B1. As shown in FIG. 13 or 14, the moving mechanism 53 includes a base portion 531, a rail 532, and a sliding portion 533.
The base portions 531 are provided so as to protrude from both end portions of one side of the rectangular parallelepiped shape of the light source device casing 517, and support the rails 532 and the sliding portions 533.
The rail 532 is two columnar members arranged in parallel so as to straddle between the pair of base portions 531.

The sliding portion 533 engages with the two rails 532 and is configured to be slidable along the two rails 532.
Although not shown in the drawings, the sliding portion 533 has a light beam passage opening corresponding to the opening portion 5171 of the light source device casing 517. When the sliding portion 533 is positioned in any of the three openings 5171, the light beam that has passed through the openings 5171 passes through the openings.
As shown in FIG. 14, the light beam incident side end of the sliding portion 533 protrudes into the concave portion 5172 of the light source device casing 517 so as to be close to the emission positions R1, G1, and B1. With such a shape, the light flux through the opening 5171 is reliably introduced into the opening of the sliding portion 533 and does not leak outside.
Further, as shown in FIG. 13 or FIG. 14, an optical fiber attachment portion 5331 for attaching the optical fiber 52 is provided at the light beam exit side end portion of the sliding portion 533. As shown in FIG. 13, the optical fiber attachment portion 5331 has an opening 5331 </ b> A corresponding to the opening of the sliding portion 533.
Then, the light beam incident side end of the optical fiber 52 is attached to the optical fiber attachment portion 5331, and the sliding portion 533 is positioned at one of the three openings 5171, so that the light flux through the opening 5171 is reflected by the optical fiber 52. Is introduced into the light beam incident side end of the light beam.
The sliding part 533 is configured to be slidable on the rail 532 by a driving part such as a motor (not shown).

[4-3. Projector structure
FIG. 16 is a diagram showing the structure of the projection unit main body 3.
As shown in FIG. 9, FIG. 10, or FIG. 16, the projection unit main body 3 detects an optical image projected from the optical device main body 440B to be manufactured. The projection unit main body 3 includes four units 31, a moving device 32 for moving the unit 31, and a plurality of handles 35 for driving the moving device 32.
The unit 31 detects the four corner portions of the optical image projected from the optical device main body 440B. Each unit 31 has two CCD cameras 311 as a light beam detecting device and one screen member 312. The CCD camera 311 and the screen member 312 are fixed to and integrated with a first fixing base 333 constituting a moving device 32 described later.
The two CCD cameras 311 are area sensors provided with a charge coupled device as an imaging device, and detect an optical image projected on the screen member 312 from the back side and output it as an electrical signal. Is. The CCD camera 311 includes a zoom / focus device to detect a projection optical image with high accuracy, and can freely adjust the zoom / focus by remote control.

  Of the two CCD cameras 311 of the unit 31, one of the CCD cameras 311A disposed inside is used for adjusting the focus position. Of the two CCD cameras 311, the other CCD camera 311 </ b> B arranged outside is used when adjusting the position of the rough surface. The CCD camera 311B for adjusting the alignment position and the CCD camera 311A for adjusting the focus position are fixed at relative positions, and the CCD camera 311B for adjusting the alignment position is, for example, 100 mm more than the CCD camera 311A for adjusting the focus position. It is arranged about the outside.

The screen member 312 can be configured, for example, by uniformly dispersing and arranging optical beads on an opaque resin layer. When a light beam is incident from the side where the optical beads are disposed, the optical bead becomes a lens, and the light beam Are ejected to the back side of the screen member 312.
One screen member 312 is provided for each unit 31, that is, a total of four, and only four corners of a substantially rectangular optical image from the optical device main body 440B are formed as projection optical images on the screen member 312. The Thereby, the area of the screen member 312 can be reduced, and thereby the cost of the manufacturing apparatus 1 can be reduced. The screen member 312 and the CCD camera 311 are fixed at relative positions.

The moving device 32 includes a first moving device 33 that moves the unit 31 in directions substantially orthogonal to each other (X1 axis direction, Y1 axis direction) in a plane substantially parallel to the display surface of the screen member 312, and the optical device body 440B. A second moving device 34 that moves the projection lens 445 in the direction of approaching and separating (Z1-axis direction).
Here, in FIG. 9 and FIG. 16, the X1, Y1, and Z1 axes are used because the directions are different from the X, Y, and Z axes shown in FIG.
The first moving device 33 includes a pair of X-axis rods 331 arranged so that the longitudinal direction thereof is along the X1 axis direction, and a pair of Y-axis rods 332 arranged so that the longitudinal direction thereof is along the Y1 axis direction. The first fixed base 333 and the second fixed base 334 are provided.
Of the pair of X-axis rods 331, one X-axis rod 331C has a threaded portion 331A at one end and a threaded portion 331B opposite to the threaded portion 331A at the other end. . One handle 351 of the plurality of handles 35 is attached to the tip of the one X-axis rod 331C.
Of the pair of X-axis rods 331, the other X-axis rod 331D has no threaded portion.
In the present embodiment, the threaded portion is not formed on the other X-axis rod 331D. However, the present invention is not limited to this, and a threaded portion may be formed and a handle may be provided on the other X-axis rod. Good.

  As with the X-axis rod 331C, the pair of Y-axis rods 332 has a threaded portion 332A formed at one end and a threaded portion 332B opposite to the threaded portion 332A formed at the other end. Handles 352 and 353 of the plurality of handles 35 are attached to the tips of the respective Y-axis rods 332.

The first fixing base 333 has a rectangular parallelepiped screw portion 333A in which a Y-axis rod 332 passes and screw holes 332A and 332B of the Y-axis rod 332 are formed, and the screw portion 333A. And a fixed portion main body 333B extending substantially parallel to the X-axis rod 331.
The screen member 312 of the unit 31 is fixed to the lower surface of the screwing portion 333A, and the two CCD cameras 311 of the unit 31 are attached to the fixing portion main body 333B attached to the upper surface of the screwing portion 333A. Yes. The two CCD cameras 311 are attached so as to alternate with the fixing portion main body 333B interposed therebetween.
The Y-axis rod 332 to which the first fixing base 333 is screwed is attached to the X-axis rod 331 via the second fixing base 334.

The second fixed base 334 has a rectangular parallelepiped shape, and a hole through which the Y-axis rod 332 passes is formed. The holes are not engraved with screws that are screwed into the threaded portions 332A and 332B of the Y-axis rod 332. By inserting the Y-axis rod 332 into the hole, the Y-axis rod 332 is inserted into the second fixed base. It will be fixed to 334.
The second fixed base 334 is formed with an X-axis rod through hole through which the X-axis rod 331 passes. Among the second fixing base 334, a screw threaded into the threaded portion 331A or the threaded portion 331B of the X-axis rod 331C is engraved inside the X-axis rod through hole of the second fixing base 334 through which the X-axis rod 331C passes. It is installed. Further, the X-axis rod through-hole of the second fixing base 334 through which the X-axis rod 331D of the second fixing base 334 passes is the diameter of the X-axis rod 331D so that the X-axis rod 331D can slide upward. It has a larger diameter.

In the first moving device 33 as described above, when the operator rotates the handle 351, the X-axis rod 331C rotates, and with this rotation, the screw 331A and 331B of the X-axis rod 331C are screwed together. The second fixed bases 334 approach and separate from each other. The second fixing base 334 attached to the X-axis rod 331D slides on the X-axis rod 331D in accordance with the movement of the second fixing base 334 screwed into the screw portions 331A and 331B of the X-axis rod 331C. And approach and separate from each other.
As the second fixed base 334 moves in the X1 axis direction, the Y-axis rod 332, the first fixed base 333, and the unit 31 fixed to the second fixed base 334 approach and separate from each other along the X1 axis.
In the first moving device 33, when the operator rotates the handle 352, one Y-axis rod 332 rotates. As a result, the first fixed bases 333 attached to one Y-axis rod 332 approach and separate from each other, and the units 31 approach and separate from each other along the Y1 axis. Similarly, when the handle 353 is rotated, the first fixing base 333 attached to the other Y-axis rod 332 approaches and separates from each other, and the units 31 approach and separate from each other along the Y1 axis.
As described above, the first moving device 33 can move the unit 31 in directions (X1 axis direction, Y1 axis direction) substantially orthogonal to each other within a plane substantially parallel to the display surface of the screen member 312.
Although not shown in the present embodiment, a bar-like measure with a scale along the longitudinal direction of the X-axis rod 331C is installed in the vicinity of the X-axis rod 331C, and the Y-axis Also in the vicinity of the rod 332, a bar-like measure is installed along the longitudinal direction of the Y-axis rod 332. The operator can drive the first moving device 33 while observing the scale of the major.

The second moving device 34 is for moving the unit 31 in a direction (Z1 axis direction) approaching and separating from the projection lens 445 constituting the optical device main body 440B. The second moving device 34 includes two support columns 341 each having a threaded portion on the outer peripheral portion, a columnar rail portion 342, a first moving device 33 (that is, the first moving device 33 and the first moving device). It has a third fixing base 343 to which a unit 31) fixed to the device 33 is fixed, and a belt 344 laid between two struts 341.
The support column 341 and the columnar rail portion 342 are erected on a small frame portion 213 installed on the bottom plate 211. The small frame portion 213 is disposed on the end side of each of the X-axis rods 331C and 331D, and the small frame portion 213 is arranged such that the upper frame 213A is inclined and is framed in a trapezoidal shape. Therefore, the column 341 and the columnar rail portion 342 standing on the small frame portion 213 are inclined with respect to the bottom plate 211. Since the third fixed base 343 attached to the support column 341 and the rail portion 342 is also inclined, the unit 31 attached to the first moving device 33 fixed to the third fixed base 343 is also inclined relative to the bottom plate 211. The optical image emitted from the projection lens 445 constituting the optical device main body 440B is projected perpendicularly to the screen member 312 of the unit 31.

The support column 341 is installed at the center of the upper frame 213A of the small frame unit 213, and rail units 342 are installed on both sides of the support column 341, respectively.
A pulley 345 for winding the belt 344 is attached to the upper portion of the column 341. Furthermore, a handle 354 is attached to the upper end of one of the two columns 341.
The third fixed base 343 has a rectangular parallelepiped shape, and the third fixed base 343 is formed with three holes through which one support column 341 and two rail portions 342 pass. Inside the hole through which the column 341 passes, a screw that engages with the column 341 is engraved. A screw is not engraved in the hole through which the rail portion 342 passes, and can slide on the rail portion 342. Further, both ends of the pair of X-axis rods 331 of the first moving device 33 are fixed to the third fixing base 343. As a result, the first moving device 33 is held and fixed on the third fixing base 343.

In such a second moving device 34, when the operator rotates the handle 354, one of the columns 341 is rotated first. Since the belt 344 is wound between the one support column 341 and the other support column 341, the other support column 341 also rotates with the rotation of the one support column 341. As the two support columns 341 rotate, the third fixing base 343 screwed to the support columns 341 moves along the Z1 axis direction. At this time, the third fixed base 343 slides on the rail portion 342. Since the first moving device 33 and further the unit 31 are fixed to the third fixed base 343, the first moving device 33 and the unit 31 approach the projection lens 445 constituting the optical device main body 440B. It moves in the direction of separating (Z1 axis direction).
Although not shown in the present embodiment, a bar-like measure with a scale along the longitudinal direction of the support column 341 is installed in the vicinity of the support column 341, and the operator observes the scale of the measure. However, the second moving device 34 can be driven.

[4-4. Manufacturing equipment control structure)
FIG. 17 is a block diagram showing a control structure of the manufacturing apparatus 1 by the control device 6.
The control device 6 is composed of a computer having a CPU (Central Processing Unit) and a hard disk, and controls the entire manufacturing device 1 by executing various programs. As shown in FIG. 17, the control device 6 includes a touch panel 61 as a setting input unit and a control unit 62.
The touch panel 61 has an object detection sensor attached to the entire display screen, and enables input operation of predetermined information by touching a predetermined position. The predetermined information to be displayed is, for example, output from the control unit 62 when setting or updating information processed in the control unit 62 or information stored in a memory described later of the control unit 62. There is data in memory. Moreover, as input operation of predetermined information, there exists a setting of the operation content of the control apparatus 6, etc., for example. A predetermined operation signal is appropriately output from the touch panel 61 to the control unit 62 by an input operation of the touch panel 61 by the operator.
The setting input means is not limited to the touch panel 61, and various conditions may be set and input by an input operation using a keyboard, a mouse, or the like, or an input operation using voice. When such a configuration is adopted, it is preferable to separately provide display means using liquid crystal, organic EL (electroluminescence), PDP (Plasma Display Panel), CRT (Cathode-Ray Tube), or the like.

  The control unit 62 is configured as a program developed on an OS (Operating System) that controls the CPU, executes a predetermined program in response to an operation signal input from the touch panel 61, and drives and controls the manufacturing apparatus 1. At the same time, the manufacturing apparatus 1 is driven and controlled based on the image captured by the CCD camera 311 of the projection unit body 3. As shown in FIG. 17, the control unit 62 includes an image capturing unit 621, an image processing unit 622, a drive control unit 623, and a memory 624 as a storage unit.

The image capturing unit 621 includes, for example, a video capture board and the like, receives signals output from the CCD camera 311, converts each input signal into an image signal, and outputs the image signal to the image processing unit 622.
The image processing unit 622 reads the image signal output from the image capturing unit 621, performs image processing based on the read image signal, and optimizes the attitude of the light modulation devices 441R, 441G, 441B based on the processed result. Determine the position. Then, a predetermined signal based on the determined optimum posture position is output to the drive control unit 623.

The drive control unit 623 outputs a control signal to the drive unit 623A based on a predetermined control program, a signal output from the image processing unit 622, and information set and input on the touch panel 61 and stored in the memory 624. . The drive control unit 623 includes the adjustment unit main body 2 (the six-axis position adjustment unit 22, the clamp jig rotation device 261, and the six-axis position adjustment unit rotation device 262), the fixing light source device 7 and the drive unit 623A. And the adjustment light source device 5 (the lamp driving circuit 5122, the total light shielding unit 514, the light amount adjusting unit 515, the color light shielding unit 516, and the sliding unit 533) are driven. As described above, the drive unit 623A includes a motor, a light source drive circuit, a solenoid actuator, and the like.
The memory 624 is set and inputted with a predetermined control program, six types of model data corresponding to each model of the optical device main bodies 440B1 to 440B6 to be manufactured, information output from the image processing unit 622, and the touch panel 61. Stores information etc.

[5. Manufacturing method of optical device body]
Next, a method for manufacturing the optical device main body 440B by the manufacturing apparatus 1 described above will be described with reference to the drawings.
FIG. 18 is a flowchart for explaining a method of manufacturing the optical device main body 440B.
First, the power supply of the control apparatus 6 is turned ON and the control apparatus 6 is started (process S1).
When the control device 6 is activated in the process S1, the main screen MFG is displayed on the touch panel 61 (process S2).

FIG. 19 is a diagram showing a main screen MFG displayed on the touch panel 61.
As shown in FIG. 19, various input operation icons MFG1, a model information display unit MFG2, a measurement result display unit MFG3, and a status display unit MFG4 are displayed on the main screen MFG.
As the input operation icon MFG1, as shown in FIG. 19, a model selection icon MFG11 for selecting a model, a change of manufacturing parameters included in model data stored in the memory 624, or registration of new model data is performed. Parameter setting icon MFG12, the origin return icon MFG13 for setting the 6-axis position adjustment unit 22 and the like to the initial position according to the model data corresponding to the selected model, and the automatic operation start for starting the automatic manufacturing operation There are icons MFG14 and the like.
The model information display part MFG2 is a part for displaying the model name selected by the model selection icon MFG11.
The measurement result display unit MFG3 is a part that displays the measurement result of the pixel shift amount in each light modulation device 441 after the optical device main body 440B is manufactured.
The state display part MFG4 is a part that lights and displays the state of the manufacturing apparatus 1, for example, whether or not the fixing light source device 7 is being driven, and whether or not there is an abnormality in the fixing light source device 7.

  After the process S2, the operator selects a model of the optical device main body 440B to be manufactured (process S3). Specifically, as the types of the optical device main body 440B, as described above, there are six types of optical device main bodies 440B1 to 440B6. When the operator touches the model selection icon MFG11 on the main screen MFG, model icons (not shown) corresponding to the six types of optical device main bodies 440B1 to 440B6 described above are displayed on the touch panel 61. Further, the model of the optical device main body 440B to be manufactured is selected and selected by touching the model icon of the optical device main body 440B to be manufactured among the six types of model icons displayed by the operator. A model name or the like corresponding to the optical device main body 440B is displayed on the model information display unit MFG2. In addition, a signal corresponding to the model information regarding the model selected from the touch panel 61 is output to the control unit 62, and the model information regarding the selected model is stored in the memory 624.

Here, the operator determines whether to change the manufacturing parameter included in the model data of the optical device main body 440B to be manufactured, or whether to register new model data to be manufactured (processing). S4).
If the operator determines “Y” in process S4, the operator touches the parameter setting icon MFG12 on the main screen MFG, changes the manufacturing parameters included in the model data, and registers new model data (process S5). ) The process S3 is performed again. Here, when the operator touches the parameter setting icon MFG 12, the parameter setting screen PFG is displayed on the touch panel 61. The setting input step according to the present invention corresponds to the processing S3 and the processing S5.

FIG. 20 is a diagram showing a parameter setting screen PFG displayed on the touch panel 61.
On the parameter setting screen PFG, as shown in FIG. 20, a manufacturing parameter information display section PFG1 and a keypad PFG2 that enables a numeric input operation are displayed.
Various manufacturing parameters are displayed for each item in the manufacturing parameter information display unit PFG1, and for example, the stage position of the 6-axis position adjustment unit 22 and the color light emitted from the adjustment light source hole 227C1 of the 6-axis position adjustment unit 22 There is a stage position setting unit PFG11 for setting the relationship.

FIG. 21 is a plan view schematically showing the stage position of the six-axis position adjustment unit 22.
As shown in FIG. 20, the characters “RGB0”, “BGR1”, “GRB2”, “GBR3”, “RBG4”, and “BRG5” are displayed on the stage position setting unit PFG11.
“RGB0” emits red light when the 6-axis position adjustment unit 22 is positioned at the stage position SP1 (FIG. 21) as the rotation position, and the stage position SP2 (FIG. 21) as the rotation position. This shows a relationship in which green light is emitted when positioned, and blue light is emitted when positioned at the stage position SP3 (FIG. 21) as a rotation position. That is, “RGB” indicates the color of the colored light corresponding to the stage positions SP1 to SP3. The same applies to the other “BGR1”, “GRB2”, “GBR3”, “RBG4”, and “BRG5”. Then, “RGB0”, “BGR1”, “GRB2”, “GBR3”, “RBG4”, and “BRG5” are set as model data corresponding to the six types of optical device main bodies 440B1 to 440B6 to be manufactured. ing. That is, “RGB0”, “BGR1”, “GRB2”, “GBR3”, “RBG4”, and “BRG5” described above are optical path information regarding the optical paths of a plurality of color lights according to the present invention and the stage of the six-axis position adjustment unit 22. This is related information associated with a position, and the model data has a configuration including the related information. When changing the above-described related information included in the model data, the operator touches the change icon PFG12 of the stage position setting unit PFG11 and touches the numeric key of the keypad PFG2, thereby causing the relation described above. Is changed. For example, by touching “0”, “1”, “2”, “3”, “4”, “5” of the keypad PFG2, “RGB0”, “BGR1”, “GRB2”, “GBR3” , “RBG4” and “BRG5” are set.

The manufacturing parameter information display unit PFG1 includes, in addition to the stage position setting unit PFG11, information related to the irradiation time for irradiating ultraviolet rays with the fixing light source device 7 according to the model, three light modulation devices 441R according to the model, Adjustment order information relating to the adjustment order of 441G and 441B, information relating to the amount of light beams for adjustment applied to the three light modulators 441R, 441G and 441B corresponding to the model, clamp jig rotating device 261 and six axes corresponding to the model Information about the amount of rotation of the position adjustment unit rotation device 262 is displayed, and can be changed as appropriate.
Although not shown, the parameter setting screen PFG also displays information for registering new model data, and is configured so that new model data can be registered as appropriate.

In the process S4, when the operator determines “N”, the manufacturing apparatus 1 is set to an initial position corresponding to the optical apparatus body 440B to be manufactured (process S6). The optical device body 440B will be described as the optical device body 440B1. The same applies when the manufacturing object is the other optical devices 440B2 to 440B6.
Specifically, the operator contacts the origin return icon MFG13 on the main screen MFG. Then, a predetermined operation signal is output from the touch panel 61 to the control unit 62. When receiving an operation signal from the touch panel 61, the control unit 62 reads out model data corresponding to the model information selected in the process S3 and stored in the memory 624. Further, the control unit 62 outputs a predetermined control signal to the drive unit 623A based on the read model data, and performs control for setting the adjustment unit body 2 and the adjustment light source device 5 to the initial positions as described below. To implement.
That is, the control unit 62 drives and controls the clamp jig rotation device 261 to rotate the clamp jig 23 by the rotation amount corresponding to the projection angle of the projection lens 445 constituting the optical device main body 440B1. Further, the control unit 62 drives and controls the 6-axis position adjustment unit rotation device 262 to rotate the 6-axis position adjustment unit 22 according to the rotation amount of the clamp jig 23.

Further, the control unit 62 drives and controls the six-axis position adjustment unit rotation device 262 based on the adjustment order information and the related information included in the read model data, and the light modulation devices 441R and 441R constituting the optical device body 440B1. The 6-axis position adjustment unit 22 is rotated to the stage position SP2 (FIG. 21) corresponding to the light modulation device 441G that is firstly adjusted and fixed among the positions 441G and 441B.
Further, the control unit 62 drives and controls each light amount adjusting unit 515 constituting the adjustment light source device 5 and installs each light amount adjusting unit 515 at a rotation position corresponding to the model of the optical device main body 440B1.
Furthermore, the control unit 62 drives and controls each color light shielding unit 516, installs the color light shielding unit 516 G at the non-shielding position and installs the color light shielding units 516 R and 516 B at the shielding position, and is emitted from the light source lamp unit 511. Of the three color lights separated by the color separation optical device 513, red light and blue light are set to be shieldable.
Further, the control unit 62 controls driving of the sliding portion 533 of the moving mechanism 53 constituting the adjustment light source device 5 based on the related information included in the read model data, and corresponds to the stage position SP2 (FIG. 21). The sliding portion 533 is moved to the emission position G1 to be set, and the green light emitted from the light source lamp unit 511 and separated by the color separation optical device 513 is set so as to be able to be introduced from the light beam incident side end of the optical fiber 52.

  In addition, the operator rotates the handle 35 of the manufacturing apparatus 1 to drive the moving device 32 to move each unit 31 to the installation position of the optical device main body 440B1 that has been grasped in advance. It arrange | positions symmetrically with respect to the optical axis position of the projection lens 445 which comprises 440B1. Thereby, corner portions of the optical image can be formed on the screen member 312.

  After the manufacturing apparatus 1 is set to the initial position in the process S6, a unit in which the cross dichroic prism 444, the projection lens 445, and the head body 446 are integrated in advance is installed in the clamp jig 23 (process S7: color synthesis optics). Device installation process). In this embodiment, the position adjustment of the cross dichroic prism 444 with respect to the electro-optical device mounting portion 4461 in the head body 446 is performed in advance, and the cross dichroic prism 444 is fixed at a predetermined position of the electro-optical device mounting portion 4461. It shall be.

After the process S7, position adjustment and fixing of the first light modulation device (light modulation device 441G) having the first adjustment order among the light modulation devices 441R, 441G, and 441B constituting the optical device body 440B1 are performed. (Processing S8).
Specifically, FIG. 22 is a flowchart for explaining position adjustment and fixing of the first light modulation device.
First, the operator installs the light modulation device 441G, which is the first light modulation device, in the six-axis position adjustment unit 22 (process S8A: light modulation device holding step). The light modulation device 441G is installed on the six-axis position adjustment unit 22 in a state where pins 4413 coated with an ultraviolet curable adhesive are inserted into the holes 4412A at the four corners of the holding frame 4412 constituting the light modulation device 441G. The light modulation device holding unit 227 of the shaft position adjustment unit 22 is sucked and held.

  After the process S8A, the operator touches the automatic operation start icon MFG14 on the main screen MFG to start the position adjustment and the fixed automatic operation of the light modulation device 441G (process S8B). When the operator touches the automatic driving start icon MFG 14, a predetermined operation signal is output from the touch panel 61 to the control unit 62. When the operation signal output from the touch panel 61 is input, the control unit 62 starts position adjustment and fixed automatic operation of the light modulation device 441G according to a program corresponding to the model data stored and read in the memory 624.

First, based on the design position of the light modulation device 441G included in the model data, the control unit 62 outputs a predetermined control signal to the drive unit 623A to advance the 6-axis position adjustment unit 22, and the light modulation device. The pin 4413 inserted into the hole 4412A of the holding frame 4412 constituting the 441G is installed at a position where it abuts on the light beam incident side end face of the cross dichroic prism 444 (processing S8C).
After the process S8C, the control unit 62 drives and controls the lamp driving circuit 5122 to turn on the light source lamp unit 511. When the light source lamp unit 511 is turned on, the green light of the three color lights separated by the color separation optical device 513 is guided through the sliding portion 533 and the optical fiber 52 positioned at the emission position G1, The light is introduced into the light modulation device 441G through the adjustment light source hole 227C1 of the light modulation device holding portion 227 of the six-axis position adjustment unit 22 (processing S8D: light beam introduction step).
The green light introduced by the light modulation device 441G in the process S8D is projected as a rectangular optical image from the projection lens 445 via the light modulation device 441G and the cross dichroic prism 444, and the four corner portions are projected onto the screen member 312. (Processing S8E).

  After the process S8E, the control unit 62 outputs a predetermined signal to the CCD camera 311 to detect the projection image formed on the screen member 312 (process S8F: luminous flux detection step), and the light modulation device from the detected image pattern. The optimal posture position of 441G is determined, a predetermined control signal is output to the six-axis position adjustment unit 22, and the focus position adjustment (process S8G: position adjustment process) and alignment position adjustment of the light modulation device 441G are performed (process) S8H: Position adjustment step). Here, the focus position adjustment refers to the Z-axis direction when the direction in which the light modulation device 441G is closely separated from the cross dichroic prism 444 is the Z-axis direction, and the two axes orthogonal to the X-axis and the Y-axis are the Z-axis direction and the X-axis And the rotation direction around the Y axis (Yθ direction). The alignment position adjustment means adjustment in the X-axis direction, the Y-axis direction, and the rotational direction (θ direction) in the XY plane.

  After the process S8H, the control unit 62 outputs a predetermined control signal to the driving unit 623A to drive the fixing light source device 7 to irradiate ultraviolet rays through the optical fiber, so that the light flux incident side end face of the cross dichroic prism 444 is obtained. And the pin 4413, and between the outer peripheral surface of the pin 4413 and the inner peripheral surface of the hole 4412A of the holding frame 4412, the ultraviolet curable adhesive is cured, and the light modulation device 441G is changed to the cross dichroic prism 444. It is fixed (process S81).

  After the process S81, the control unit 62 outputs a predetermined signal to the CCD camera 311 to detect the projection image formed on the screen member 312 and sets a predetermined pixel position (reference pixel position) in the detected image pattern. The reference pixel position is calculated and stored in the memory 624 (process S8J).

After adjusting and fixing the position of the light modulation device 441G in the process S8, the control unit 62 drives and controls the color light shielding unit 516G constituting the adjustment light source device 5, and installs the color light shielding unit 516G at the light shielding position. . Then, the three color lights emitted from the light source lamp unit 511 and separated by the color separation optical device 513 are shielded.
Thereafter, the control unit 62 controls the driving of the 6-axis position adjustment unit 22 and moves the 6-axis position adjustment unit 22 backward (processing S9).
After the process S9, the control unit 62 drives and controls the 6-axis position adjustment unit rotation device 262 based on the adjustment order information and the related information included in the read model data, and performs light modulation that constitutes the optical device body 440B1. The six-axis position adjustment unit 22 is rotated to the stage position SP1 (FIG. 21) corresponding to the light modulation device 441R that is secondly adjusted and fixed among the devices 441R, 441G, and 441B (processing S10: rotation step).
After the process S10, the control unit 62 drives and controls the sliding portion 533 of the moving mechanism 53 constituting the adjustment light source device 5 based on the related information included in the read model data, and the stage position SP1 (FIG. 21). ) Is moved to the emission position R1 corresponding to), so that red light emitted from the light source lamp unit 511 and separated by the color separation optical device 513 can be introduced from the light beam incident side end of the optical fiber 52. (Process S11: Color light switching step).

After the process S11, the position adjustment and fixing of the second light modulation device (light modulation device 441R) having the second adjustment order are performed (processing S12).
Specifically, FIG. 23 is a flowchart for explaining position adjustment and fixing of the second light modulation device.
Note that the position adjustment and fixation of the light modulation device 441R are substantially the same as the position adjustment and fixation of the light modulation device 441G described above, and the description will be simplified below.
First, similarly to the processes S8A and S8B, the operator installs the light modulation device 441R as the second light modulation device in the six-axis position adjustment unit 22 (processing S12A: light modulation device holding step), and the main screen MFG. The automatic operation start icon MFG14 is contacted to start position adjustment and fixed automatic operation of the light modulation device 441R (step S12B).
After the process S12B, the control unit 62 advances the 6-axis position adjustment unit 22 in the same manner as the process S8C, and moves the light modulation device 441R to a position where the pin 4413 contacts the cross dichroic prism 444 (process S12C).

  After the process S12C, the control unit 62 drives and controls the color light shielding unit 516R, and moves the color light shielding unit 516R to the non-shielding position. The red light of the three color lights emitted from the light source lamp unit 511 and separated by the color separation optical device 513 is guided through the sliding portion 533 and the optical fiber 52 positioned at the emission position R1. Then, the light is introduced into the light modulation device 441R through the adjustment light source hole 227C1 of the light modulation device holding unit 227 of the six-axis position adjustment unit 22 (processing S12D: light beam introduction step). Then, similarly to the processing S8E, the four corner portions of the optical image projected from the projection lens 445 of the optical device main body 440B1 are projected onto the screen member 312 (processing S12E).

After the process S12E, the control unit 62 detects the projection image (process S12F: light flux detection process), the focus position adjustment (process S12G: position adjustment process), and the alignment position adjustment (process S12H: process S12F: S8I: Position adjustment step), and fixing the light modulation device 441R to the cross dichroic prism 444 (processing S12I).
After the processing S12I, the control unit 62 outputs a predetermined signal to the CCD camera 311 to detect the projection image formed on the screen member 312 and calculates a predetermined pixel position in the detected image pattern. Then, the control unit 62 compares the calculated pixel position with the reference pixel position stored in the memory 624 in step S8J, calculates a pixel shift amount with respect to the reference pixel position, and stores the red light pixel shift amount in the memory. It memorize | stores in 624 (process S12J).

After performing the position adjustment and fixing of the light modulation device 441R in the process S12, the control unit 62 drives and controls the color light shielding unit 516R constituting the adjustment light source device 5, and installs the color light shielding unit 516R at the light shielding position. . Then, the three color lights emitted from the light source lamp unit 511 and separated by the color separation optical device 513 are shielded.
Thereafter, the control unit 62 retracts the six-axis position adjustment unit 22 as in the process S9 (process S13).
After the process S13, the control unit 62 drives and controls the six-axis position adjustment unit rotation device 262 based on the adjustment order information and the related information included in the read model data, and performs light modulation that constitutes the optical device body 440B1. The 6-axis position adjustment unit 22 is rotated to the stage position SP3 (FIG. 21) corresponding to the light modulation device 441B that is thirdly adjusted and fixed among the devices 441R, 441G, and 441B (processing S14: rotation process).
After the process S14, the control unit 62 drives and controls the sliding portion 533 of the moving mechanism 53 constituting the adjustment light source device 5 based on the related information included in the read model data, and the stage position SP3 (FIG. 21). ) Is moved to the emission position B1 corresponding to), so that the blue light emitted from the light source lamp unit 511 and separated by the color separation optical device 513 can be introduced from the light beam incident side end of the optical fiber 52. (Process S15: Color light switching step).

After the process S15, the position adjustment and fixing of the third light modulation device (light modulation device 441B) whose adjustment order is third is performed (process S16).
Specifically, FIG. 24 is a flowchart for explaining position adjustment and fixation of the third light modulation device.
Note that the position adjustment and fixing (processing S16) of the light modulation device 441B are substantially the same as the position adjustment and fixing of the light modulation device 441B described above, and correspond to the processing S12A to S12J shown in FIG. As shown, the installation of the light modulation device 441B with respect to the 6-axis position adjustment unit 22 (process S16A: light modulation device holding step), the position adjustment of the light modulation device 441B and the start of automatic operation for fixation (process S16B), the 6-axis position Advancement of the adjustment unit 22 (process S16C), introduction of blue light into the light modulation device 441B (process S16D: light beam introduction process), formation of a projection image (process S16E), and detection of a projection image (process S16F: light beam detection process) , Focus position adjustment (process S16G: position adjustment process), alignment position adjustment (process S16H: position adjustment process), cross dichroic Kupurizumu fixing of the optical modulation device 441R for 444 (processing S16I), and obtains the pixel shift amount of the blue light (processing S16J) is being implemented.

After the process S16, the control unit 62 drives and controls the color light shielding unit 516B configuring the adjustment light source device 5, and installs the color light shielding unit 516B at the light shielding position. Then, the three color lights emitted from the light source lamp unit 511 and separated by the color separation optical device 513 are shielded.
Thereafter, the control unit 62 retracts the six-axis position adjustment unit 22 in the same manner as the processes S9 and S13 (process S17).
After the process S17, the control unit 62 reads out the pixel shift amounts of the red light and the blue light stored in the memory 624 in the processes S12J and S16J, and compares each read pixel shift amount with a predetermined reference value. Then, it is determined whether or not each pixel shift amount is equal to or less than a predetermined reference value (processing S18).

When it is determined as “N” in the process S18, the manufactured optical device main body 440B1 is regarded as a defective product, and the character “NG” is displayed on the measurement result display portion MFG3 of the main screen MFG of the touch panel 61 (process). S19).
If it is determined as “Y” in the process S18, the manufactured optical device main body 440B1 is not a defective product but is normally manufactured.

In the embodiment described above, the 6-axis position adjustment unit 22 that holds the light modulation device 441 and adjusts the position of the light modulation device 441 is configured to be rotatable by the 6-axis position adjustment unit rotation device 262. Therefore, the light modulation devices 441 held on the three light beam incident side end surfaces of the cross dichroic prism 444 can be made to face each other. For this reason, it is not necessary to provide three 6-axis position adjustment units as in the prior art, and only one 6-axis position adjustment unit can be configured, so that the manufacturing cost can be reduced when the manufacturing apparatus 1 is manufactured.
Further, since the adjustment light source device 5 is configured to be able to emit three color lights of red, green, and blue corresponding to the three light modulation devices 441R, 441G, and 441B, the light modulation device 441 and the cross dichroic prism 444 are provided. Then, the projection image projected by the projection lens 445 can be satisfactorily detected by the CCD camera 311. For this reason, the light quantity of the light beam detected by the CCD camera 311 is not reduced, and the positions of the three light modulators 441R, 441G, and 441B can be satisfactorily adjusted based on the light beam detected by the CCD camera 311.
Further, by moving the proximal end portion of the optical fiber 52 by the moving mechanism 53, any one of the color lights respectively emitted from the three emission positions R1, G1, B1 of the light source device main body 51 is converted into the optical fiber. Since the light modulation device 441 is guided by the light 52 and held by the light modulation device holding unit 227 of the six-axis position adjustment unit 22, six types of optical device main bodies 440 B 1 having different three light paths are provided. Even when manufacturing ˜440B6, the light modulation device 441 is irradiated with the color light according to the optical path position of the predetermined color light by moving the proximal end portion of the optical fiber 52 by the moving mechanism 53 according to the optical paths of the three color lights. can do. For this reason, it is not necessary to cause the operator to perform complicated operations such as removing the optical fiber as in the prior art, and six types of optical device main bodies 440B1 to 440B6 having different optical paths for the three colored lights can be easily manufactured.

Then, the control unit 62 controls the sliding unit 533 of the moving mechanism 53 based on the related information associated with the optical path information and the stage position included in the model data corresponding to the model selected by the touch panel 61 by the operator. Drive control. Accordingly, the 6-axis position adjusting unit 22 is rotated by the 6-axis position adjusting unit rotating device 262, and the stage corresponding to the optical path position of the predetermined color light among the three color light paths corresponding to the model of the optical device main body 440B. When the six-axis position adjusting unit 22 is positioned at the positions SP1 to SP3, the control unit 62 controls the driving of the sliding portion 533 so that the predetermined color light corresponding to the stage positions SP1 to SP3 is transmitted from the tip portion of the optical fiber 52. Can be injected. For this reason, compared with the structure which drives the sliding part 533 manually, the movement position of the base end part of the optical fiber 52 is not mistaken, and six types of optical apparatus main bodies 440B1-440B6 from which the optical path of three colored lights differs are different. Can be made more easily and quickly.
Here, since the related information in which the optical path information and the stage position are associated is included in the model data and a plurality of model data is stored in the memory 624 in advance, the operator can use the touch panel 61 to manufacture the optical device to be manufactured. By simply selecting the model of the main body 440B, the optical paths of the three color lights of the optical device main body 440B to be manufactured are set. For this reason, it is possible to easily set the optical paths of the three color lights as compared with the configuration in which the optical path information is directly input on the touch panel 61.

Further, the control unit 62 drives and controls the 6-axis position adjustment unit rotating device 262 based on the adjustment order information and the related information included in the model data corresponding to the model selected by the touch panel 61 by the operator. As a result, the six-axis positions of the three color light paths according to the model of the optical device main body 440B to be manufactured according to the adjustment order of the three light modulation devices 441R, 441G, and 441B are positioned at the optical path positions of the predetermined color lights. The adjustment unit 22 can be sequentially positioned, and the predetermined color light according to the stage positions SP1 to SP3 can be emitted from the tip portion of the optical fiber 52. For this reason, compared with the structure which drives the 6-axis position adjustment unit rotation apparatus 262 and the sliding part 533 manually, the rotation position of the 6-axis position adjustment unit 22 and the movement position of the base end part of the optical fiber 52 6 types of optical device main bodies 440B1 to 440B6 having different optical paths of three color lights can be manufactured even more easily and quickly.
Here, since the adjustment order information is included in the model data and a plurality of model data is stored in the memory 624 in advance, the operator simply selects the model of the optical device main body 440B to be manufactured on the touch panel 61. Thus, the adjustment order of the three light modulation devices 441 constituting the optical device main body 440B to be manufactured is set. For this reason, compared with the configuration in which the adjustment order information is directly input on the touch panel 61, the adjustment order of the three light modulation devices 441 can be easily set.

In addition to the sliding portion 533 and the 6-axis position adjustment unit rotation device 262, the control unit 62 further includes the 6-axis position adjustment unit 22, the clamp jig rotation device 261, the lamp driving circuit 5122, the total light shielding portion 514, The light amount adjusting unit 515, the color light shielding unit 516, and the fixing light source device 7 are driven and controlled. Thus, most of the manufacturing process of the optical device main body 440B can be executed by the control unit 62, and the optical device main body 440B can be manufactured easily and quickly without causing the operator to perform complicated work.
The control unit 62 includes an image capturing unit 621 and an image processing unit 622, and drives the six-axis position adjustment unit 22 based on the optimum posture position of the light modulation device 441 determined by the image processing unit 622. Since the control is performed, the focus position adjustment and the alignment position adjustment of the light modulation device 441 can be performed with high accuracy. For this reason, in comparison with the configuration in which the image detected by the CCD camera 311 is visually confirmed and the 6-axis position adjustment unit 22 is manually operated, the ambiguity of the adjustment accuracy is eliminated, and the light modulation device 441 is provided. The optical device main body 440B can be manufactured with high accuracy by adjusting the cross dichroic prism 444 to an optimum position.

Although the present invention has been described with reference to preferred embodiments, the present invention is not limited to the above-described embodiments, and various improvements and design changes can be made without departing from the scope of the present invention. It is.
In the embodiment, the configuration including the projection lens 445 and the head body 446 has been described as the optical device main body 440B to be manufactured. However, the configuration is not limited thereto, and a configuration not including the projection lens 445 and the head body 446 is adopted. May be. At this time, for example, the following configuration can be adopted.
For example, instead of the projection lens 445, a master lens having an average optical characteristic is arranged in the manufacturing apparatus 1, and the light beam emitted from the cross dichroic prism 444 is enlarged and projected onto the projection unit main body 3 by the master lens.
Further, for example, the projection unit main body 3 is also omitted, and the light beam emitted from the cross dichroic prism 444 is directly detected by a light beam detection device such as a CCD camera 311. In such a configuration, the 6-axis position adjustment unit 22 is not rotated by the 6-axis position adjustment unit rotating device 262, and the clamp jig 23 that holds the cross dichroic prism 444 is attached to the 6-axis position adjustment unit 22. Alternatively, a configuration may be adopted in which the three light beam incident side end surfaces of the cross dichroic prism 444 are rotated so as to face the light modulation device 441 held in the opposite direction. At this time, the clamp jig 23 corresponds to the rotating portion according to the present invention.

  In the above-described embodiment, the moving mechanism 53 includes the base 531, the rail 532, and the sliding portion 533, and the sliding portion 533 is configured to slide on the rail 532, but is not limited thereto. Any mechanism may be used as long as the light beam incident side end of the optical fiber 52 can be moved to the emission positions R1, G1, and B1. For example, using the configuration in which the position is changed by changing the screwing state of the screw, such as the moving device 32 of the projection unit main body 3, the light beam incident side end of the optical fiber 52 is set to the emission position R1, G1,. You may employ | adopt the structure moved to B1.

In the above-described embodiment, the model data includes the related information in which the optical path information and the stage position are associated, a plurality of model data is stored in the memory 624 in advance, and the model of the optical device main body 440B to be manufactured by the touch panel 61 is selected. By selecting, the optical path information regarding the optical paths of the three color lights of the optical device main body 440B to be manufactured is set, but the present invention is not limited to this. For example, a configuration in which three color light optical paths according to the model of the optical device main body 440B are directly input to the touch panel 61, or six types of optical path information related to the three color light optical paths of the optical device main body 440B are stored in the memory 624 in advance. Alternatively, a configuration in which six types of optical path information are selected by the touch panel 61 may be employed.
Similarly, the adjustment order information is such that the adjustment order of the three light modulation devices 441R, 441G, and 441B constituting the optical device main body 440B is directly input to the touch panel 61, or the three light modulation devices 441R are previously input to the memory 624. , 441G, 441B may be stored, and six types of adjustment order information may be stored and the touch panel 61 may select six types of adjustment order information.

In the above embodiment, the manufacturing apparatus 1 of the optical device main body 440B for the rear projector 100 has been described. However, the manufacturing apparatus 1 of the present invention is for a front projector that forms a projection image on the surface side (observer side) of the screen. It can also be used as a manufacturing apparatus for the optical device body.
In the above-described embodiment, the configuration in which the three light modulation devices 441 are provided has been described.
In the embodiment, the configuration of the optical units 4001 to 4006 is not limited to the configuration described in the embodiment. If the three optical paths of R, G, and B are set as in the optical units 4001 to 4006, other configurations may be adopted.

Although the best configuration for carrying out the present invention has been disclosed in the above description, the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations.
Therefore, the description limited to the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

  The optical device manufacturing apparatus according to the present invention can reduce the manufacturing cost, can adjust the position of the plurality of light modulation devices well, and can easily manufacture various optical devices having different optical paths of the plurality of color lights. It is useful as an apparatus for manufacturing an optical device for a projector used in, for example.

Sectional drawing from the side of the rear projector which concerns on this embodiment. The top view which shows an example of the optical unit provided with the optical apparatus integrated in the rear projector in the said embodiment. The disassembled perspective view which shows the structure of the optical apparatus main body in the said embodiment. The top view which shows typically the other structure of the optical apparatus main body used as the manufacture object in the said embodiment. The top view which shows typically the other structure of the optical apparatus main body used as the manufacture object in the said embodiment. The top view which shows typically the other structure of the optical apparatus main body used as the manufacture object in the said embodiment. The top view which shows typically the other structure of the optical apparatus main body used as the manufacture object in the said embodiment. The top view which shows typically the other structure of the optical apparatus main body used as the manufacture object in the said embodiment. The figure which shows the manufacturing apparatus of the optical apparatus main body in the said embodiment. The figure which shows the manufacturing apparatus of the optical apparatus main body in the said embodiment. The side view which shows the structure of the 6-axis position adjustment unit in the said embodiment. The top view which looked at the base of the optical modulation apparatus holding | maintenance part in the said embodiment from the front. The perspective view which shows the external appearance structure of the light source device for adjustment in the said embodiment. The top view which shows typically the internal structure of the light source device for adjustment in the said embodiment. The top view which looked at the light quantity adjustment part in the said embodiment from the optical axis direction. The figure which shows the structure of the projection part main body in the said embodiment. The block diagram which shows the control structure of the manufacturing apparatus by the control apparatus in the said embodiment. The flowchart explaining the manufacturing method of the optical apparatus main body in the said embodiment. The figure which shows the main screen displayed on the touchscreen in the said embodiment. The figure which shows the parameter setting screen displayed on the touchscreen in the said embodiment. The top view which shows typically the stage position of the 6-axis position adjustment unit in the said embodiment. The flowchart for demonstrating position adjustment and fixation of the 1st light modulation apparatus in the said embodiment. The flowchart for demonstrating position adjustment and fixation of the 2nd light modulation apparatus in the said embodiment. The flowchart for demonstrating position adjustment and fixation of the 3rd light modulation apparatus in the said embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Manufacturing apparatus, 5 ... Light source device for adjustment, 22 ... 6-axis position adjustment unit (position adjustment device), 23 ... Clamp jig (holding part), 51 ... Light source device main body 52 ... Optical fiber (light guide part), 53 ... Moving mechanism, 61 ... Touch panel (setting input part), 62 ... Control part, 262 ... Six-axis position adjustment unit rotating device (Rotating part), 311... CCD camera (beam detection device), 440... Optical device, 441, 441 R, 441 G, 441 B... Light modulation device, 444 ... cross dichroic prism (color synthesis optics) Device), 621... Image capture unit, 622... Image processing unit, 624... Memory (storage unit), R1, G1, B1... Injection position, SP1 to SP3. Rotation position), S3, S5 ... Setting input S7: Color synthesizing optical device installation step, S8A, S12A, S16A ... Light modulation device holding step, S8D, S12D, S16D ... Light beam introduction step, S8F, S12F, S16F ... Light beam detection step , S8G, S8H, S12G, S12H, S16G, S16H ... position adjustment process, S10, S14 ... rotation process, S11, S15 ... color light switching process.

Claims (8)

A plurality of light modulation devices that modulate a plurality of color lights for each color light according to image information, and a plurality of light beam incident side end faces to which the plurality of light modulation devices are attached, are modulated by the plurality of light modulation devices. An optical device manufacturing apparatus that manufactures an optical device including a color combining optical device that combines optical beams to form an optical image,
A holding unit that holds the color combining optical device at a predetermined position; an adjustment light source device configured to emit the plurality of color lights and emitting any one of the plurality of color lights to the light modulation device; The light modulation for the color synthesizing optical device based on a light beam which is held from any of the plurality of light modulation devices and is emitted from the adjustment light source device and passes through the light modulation device and the color synthesizing optical device The position adjusting device for adjusting the position of the device, and the position adjusting device or the holding unit so that a plurality of light beam incident side end faces of the color synthesizing optical device and a light modulation device held by the position adjusting device face each other. A rotating part for rotating
The adjustment light source device includes: a light source device main body having a plurality of light beam emission positions for emitting the plurality of color lights; and a light source emission position of a base end portion of the plurality of light beam emission positions in the light source device main body. A light guide unit for irradiating the light modulation device held by the position adjustment device from the tip portion with the color light introduced from the base end portion with the distal end portion connected to the position adjustment device, and the light guide And a moving mechanism for moving the base end portion of the portion to the plurality of light beam emission positions. In the manufacturing apparatus of the optical device according to claim 1,
A setting input unit for setting and inputting optical path information related to the optical paths of the plurality of color lights according to the model of the optical device;
A storage unit for storing optical path information set and input to the setting input unit;
A control unit that drives and controls the moving mechanism,
The control unit is configured to control the plurality of color lights according to the type of the optical device based on the optical path information based on the optical path information stored in the storage unit and the rotation position of the holding unit or the position adjusting device. The moving mechanism is configured so that the predetermined color light is emitted from a tip portion of the light guide unit when a rotation position of the holding unit or the position adjusting device is positioned at an optical path position of predetermined color light in an optical path. An apparatus for manufacturing an optical device, characterized in that drive control is performed. In the manufacturing apparatus of the optical device according to claim 2,
The setting input unit is configured to be capable of setting and inputting adjustment order information related to an adjustment order of the plurality of light modulation devices constituting the optical device,
The storage unit stores adjustment order information set and input to the setting input unit,
The control unit adjusts the plurality of light modulation devices based on the adjustment order information based on optical path information and adjustment order information stored in the storage unit and a rotation position of the holding unit or the position adjustment device. In order, the rotation unit is driven and controlled so that the rotation position of the holding unit or the position adjustment device is sequentially positioned at each optical path position of the plurality of color lights according to the model of the optical device based on the optical path information. An apparatus for manufacturing an optical device. In the manufacturing apparatus of the optical apparatus in any one of Claims 1-3,
A light beam detection device that detects a light beam emitted from the light source device for adjustment and that passes through the light modulation device and the color synthesis optical device, and drives and controls the position adjustment device based on the light beam detected by the light beam detection device. And a control unit that
The control unit performs image processing based on an image capturing unit that captures an image detected by the light flux detection device and converts the image into an image signal, and an image signal output from the image capturing unit. And an image processing unit that determines an optimum posture position of the light modulation device based on the result, and drives and controls the position adjusting unit based on the optimum posture position determined by the image processing unit. Manufacturing device for optical devices. A plurality of light modulation devices that modulate a plurality of color lights for each color light according to image information, and a plurality of light beam incident side end faces to which the plurality of light modulation devices are attached, are modulated by the plurality of light modulation devices. In order to manufacture an optical device including a color combining optical device that combines the light beams to form an optical image, a position adjustment device holds the light modulation device and is emitted from an adjustment light source device and the light modulation device and A method of manufacturing an optical device that adjusts the position of each light modulation device with respect to the color synthesis optical device by the position adjustment device based on image light that has passed through the color synthesis optical device,
The adjustment light source device includes a light source device main body having a plurality of light beam emission positions for emitting a plurality of colored lights, and a base end portion at any one of the plurality of light beam emission positions in the light source device main body. A light guide unit for irradiating the light modulation device, which is positioned and connected to the position adjustment device and introduced from the base end portion to the light modulation device held by the position adjustment device, and the light guide unit; A moving mechanism for moving the base end portion of the light beam to the plurality of light beam emission positions,
The manufacturing method is
A color synthesis optical device installation step of installing the color synthesis optical device at a predetermined position;
A light modulation device holding step of holding any one of the plurality of light modulation devices in the position adjustment device;
Of the plurality of light incident side end faces of the color combining optical device, the color combining is performed such that the light incident side end surface corresponding to the light modulation device held in the light modulation device holding step faces the light modulation device. A rotation step of rotating the optical device or the position adjusting device by a rotation unit;
A color light switching step of moving the base end portion of the light guide unit to the plurality of light beam emission positions by the moving mechanism and switching the color light emitted to the light modulation device;
A light beam introduction step for introducing the color light switched in the color light switching step into the light modulation device held in the light modulation device holding step;
A position adjustment step of adjusting the position of the light modulation device with respect to the color synthesis optical device using the position adjustment device based on image light emitted through the light modulation device and the color synthesis optical device. A method for manufacturing an optical device. In the manufacturing method of the optical device according to claim 5,
The moving mechanism is driven and controlled by a control unit,
A setting input step for setting and inputting optical path information related to the optical paths of the plurality of color lights according to the model of the optical device;
The color light switching step is based on the optical path information set and input in the setting input step and the rotation position of the color synthesis optical device or the position adjustment device rotated in the rotation step. When the rotation position of the color synthesizing optical device or the position adjusting device is positioned at the optical path position of a predetermined color light among the optical paths of the color light according to the model of the optical device based on the optical path information. A method of manufacturing an optical device, wherein the moving mechanism is driven and controlled so that the predetermined color light is emitted from a tip portion of a light guide. In the manufacturing apparatus of the optical device according to claim 6,
The control unit drives and controls the rotation unit,
In the setting input step, in addition to the optical path information, adjustment order information regarding the adjustment order of the plurality of light modulation devices constituting the optical device is set and input.
In the rotation step, the control unit uses the optical path information and adjustment order information set and input in the setting input step and the rotation position of the color synthesizing optical device or the position adjustment device as the adjustment order information. The rotation position of the color synthesizing optical device or the position adjusting device is sequentially positioned in each optical path position of the plurality of color lights according to the model of the optical device based on the optical path information in the adjustment order of the plurality of light modulating devices based on The method of manufacturing an optical device is characterized in that the rotation unit is driven and controlled as described above. In the manufacturing method of the optical device in any one of Claims 5-7,
Image light emitted through the light modulation device and the color synthesis optical device is detected by a light beam detection device,
The position adjustment device is driven and controlled by a control unit,
A light beam detecting step of causing the light beam detecting device to detect image light emitted through the light modulation device and the color combining optical device;
In the position adjustment step, the control unit captures the image light detected in the light beam detection step, converts the image light into an image signal, and the control unit performs image processing based on the converted image signal so that the light modulation is performed. An optical device comprising: determining an optimum posture position of the apparatus; and controlling the drive of the position adjusting device based on the determined optimum posture position to adjust the position of the light modulation device with respect to the color synthesizing optical device. Device manufacturing method.

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