CN204705805U - Projector - Google Patents

Abstract

The utility model provides a projector, which is configured so that a user can easily identify a first operation button, and has good usability. A projector (1) is equipped with: a light source; a light modulation device; a projection lens (36); an exterior case (2), which constitutes an exterior, and has a projection opening (2a) through which light projected from the projection lens (36) passes. ); a first operation button (41a), which functions as a static switching button and an automatic calibration button by one operation; and a plurality of second operation buttons (420), which include items for selecting The first operation button (41a) is arranged at a position closer to the projection opening (2a) than the plurality of second operation buttons (420) for the selection confirmation button that is operated multiple times for determination.

Description

projector

technical field

The utility model relates to a projector.

Background technique

Conventionally, there is known a projector that modulates light emitted from a light source based on image information, and projects the modulated light on a projection surface such as a screen. In addition, an input operation unit having a plurality of operation buttons is provided on the outer casing of the projector, and the projector is configured to adjust various actions, adjust the image to be projected, and adjust the state of the image by operating the input operation unit. Switching is performed (for example, refer to Patent Document 1).

The projector (image display device) described in Patent Document 1 has an input operation unit (operation switch) provided on the upper surface of an exterior case. The input operation unit has operation buttons such as a power switch button, an input switching button, a menu button, an adjustment button, an AV/mute button, a tracking adjustment button, a synchronization adjustment button, an enter button, and a help button.

The adjustment button is used to adjust the size of the projected image projected on the projection surface. The AV/Still button is used to switch the display of the projected image to a blank screen of a certain color or the display of the user logo, and temporarily cut off the sound from the speaker. Action button for sound output. The confirmation button is an operation button for confirming that a projected image is to be displayed by tracking and horizontal synchronization adjusted by the tracking adjustment button and the synchronization adjustment button.

Patent Document 1: Japanese Patent Laid-Open No. 2012-8590

However, in the projector described in Patent Document 1, since a plurality of operation buttons are arranged on the input operation unit, there is a problem that it is difficult to find a desired operation button immediately. In particular, there is a problem that it is difficult to immediately operate the operation button used when it is desired to immediately change the projection state, for example, to immediately operate the AV that is operated when it is desired to temporarily stop the projection of the image in the middle of a presentation using the projector, etc. /Freeze button, etc. to immediately interrupt the projection of the image.

Utility model content

The present invention is made to solve at least a part of the above-mentioned problems, and the present invention can be realized by the following forms or application examples.

[Application example 1] The projector of this application example includes: a light source; a light modulation device that modulates light emitted from the light source according to image information; and a projection lens that uses the light modulated by the light modulation device Projected on a projection surface, the projector is characterized in that it includes: an exterior casing, which constitutes the exterior of the projector, and has a projection opening through which light projected from the projection lens passes; at least one first 1 operation button, which is operated to perform at least one of changing and adjusting the projection state of the projector with one operation; and a plurality of second operation buttons, including items for selecting and In the selection confirmation button which is determined and operated multiple times, the first operation button is arranged at a position closer to the projection opening than the plurality of second operation buttons.

According to this configuration, the first operation button is operated to change or adjust the projection state, and is arranged at a position closer to the projection opening than the second operation button. This enables the user of the projector to easily recognize the first operation button, so the user can quickly change and adjust the projection state. Therefore, it is possible to provide a projector with good usability.

[Application example 2] In the projector of the above application example, it is preferable that the exterior case has an upper surface portion that is on the upper side when the projector is placed, and that the first The operation button and the plurality of second operation buttons are disposed on the upper surface, and the interval between the first operation button and the plurality of second operation buttons is larger than that of the plurality of second operation buttons. Adjacent buttons are spaced far apart from each other.

According to this configuration, the first operation button and the second operation button are arranged on the upper surface of the exterior case, and the first operation button is separated from the second operation button and arranged closer to the projection opening than the second operation button. This enables the user to more clearly recognize the first operation button. Therefore, the user can more quickly operate the first operation button, and cause the projector to perform an operation corresponding to the operation of the first operation button, switch displays, and the like.

[Application example 3] In the projector of the application example above, preferably, the exterior case has a first side surface and a second side surface sandwiching the optical axis of the projection lens, and the second side surface The distance from the optical axis is longer than the distance from the first side portion to the optical axis, and the first operation button is arranged between the second side portion and the optical axis when viewed from the upper surface portion side. between the axes.

According to this structure, the 1st operation button is provided in the center area between the 1st side part and the 2nd side part. This enables the user to more clearly recognize the first operation button.

[Application Example 4] In the projector of the above application example, preferably, the first operation button functions as a still switch button for switching between stopping and resuming display of a projected image.

According to this configuration, since the user of the projector can easily recognize the first operation button as the still switching button, the display of the projected image can be stopped and resumed quickly.

[Application Example 5] In the projector of the above application example, it is preferable that the projector further includes: an imaging unit that captures an image of the projection surface; In the captured image, the coordinates of the calibration pattern image projected by the projection lens on the projection surface and the coordinates of the captured image of the pattern image captured by the imaging unit correspond to each other, and the first operation button Functions as the automatic calibration button.

According to this configuration, since the user of the projector can easily recognize the first operation button as the automatic calibration button, it is possible to easily adjust the position of the projection lens when the projector is reinstalled or when the installation location is changed. The coordinates of the projected calibration pattern image correspond to the coordinates of the captured image of the pattern image captured by the imaging unit. Accordingly, when performing projection using an image of a pointer (for example, an electronic pen) that emits light when it is operated, it is possible to quickly perform correspondence with the operation position of the pointer on the projection surface.

[Application Example 6] In the projector according to the above application example, it is preferable that different operations are performed according to different operations performed by the user on the first operation button.

According to this configuration, the user can cause the projector to perform a number of operations greater than the number of first operation buttons by using different operations of the first operation buttons. For example, one push-type first operation button may be provided, and the first operation button may function as a static switching button and an auto-calibration button depending on the pressing time. Accordingly, since the first operation buttons can be configured with a small number, the user can easily recognize the first operation buttons, and the arrangement of the first operation buttons can be space-saving.

Description of drawings

FIG. 1 is an external view of the projector according to the present embodiment viewed from the projection surface side.

FIG. 2 is an external view of the projector according to the present embodiment viewed from the side facing the projection surface.

FIG. 3 is a block diagram showing a schematic configuration of a projector according to the present embodiment.

FIG. 4 is a schematic diagram of the optical unit of the present embodiment.

FIG. 5 is a cross-sectional view of the projector in the vicinity of the raised portion according to the present embodiment.

Label description

1: projector; 2: exterior case; 2a: opening for projection; 2L: left side (first side); 2R: right side (second side); 2U: upper surface; 3: Optical unit; 4: input operation part; 10: control part; 31: light source device; 36: projection lens; 36Ax: optical axis; 41: first operation part; 41a: first operation button; 42: second operation part; 42a: power button; 71: camera unit; 80: electronic pen; 311: light source; 351, 351B, 351G, 351R: light modulation device; 420: second operation button.

Detailed ways

Next, a projector according to this embodiment will be described with reference to the drawings.

The projector of this embodiment modulates light emitted from a light source based on image information, and performs enlarged projection on a projection surface such as a screen. In addition, the projector of the present embodiment is configured to be able to perform projection according to an instruction of an electronic pen.

〔The main structure of the projector〕

FIG. 1 is an external view of a projector 1 according to the present embodiment viewed from the projection surface side. FIG. 2 is an external view of the projector 1 viewed from the side facing the projection surface. FIG. 3 is a block diagram showing a schematic configuration of the projector 1 . In addition, in the following, for the convenience of explanation, the direction of projection light projected from the projector 1 is described as +Y direction (front direction), and the posture (placement posture) where the projector 1 is placed on a table or the like is described as +Y direction (front direction). The upper side of the projector 1 is described as the +Z direction (upward direction), and the right side of the projector 1 viewed from the side facing the projection surface in the placement posture is described as the +X direction.

As shown in FIGS. 1 to 3 , the projector 1 includes an exterior case 2 constituting the exterior, a control unit 10 , an optical unit 3 having a light source device 31 , an input operation unit 4 , a plurality of input terminals 5 , and reception units 6F and 6B. and a detection unit 7 . Although not shown, a cooling device for cooling the optical unit 3 and the like, a power supply device for supplying electric power to the light source device 31 and the control unit 10 and the like are arranged inside the exterior case 2 .

The exterior case 2 is constituted by combining a plurality of synthetic resin components, and as shown in FIG. The right side part 2R of a side part, the back part 2B, and the bottom part 2T.

A projection opening 2 a through which projection light from the optical unit 3 passes, an opening 2 b for the receiving unit 6F, and an opening 2 c for the detection unit 7 are formed in the front surface portion 2F.

The projection opening 2a is provided to the left (-X direction) of the center in the left-right direction (±X direction), and the openings 2b and 2c are formed to be located to the right of the projection opening 2a (+X direction). , the opening 2b is located above the opening 2c.

In addition, a receiving portion 6F (see FIG. 3 ) is arranged in an opening 2 b through which infrared light passes and which is closed by a filter member 21 for blocking visible light.

The detection unit 7 (see FIG. 3 ) is arranged in the opening 2c having a hole formed in the center. The opening 2c transmits infrared light and is closed by a filter member 22 for removing visible light. In addition, the filter member 21 and the filter member 22 may be integrally formed.

The upper surface portion 2U is a portion that forms the upper side of the exterior case 2 in the placement posture of the projector 1 . The upper surface portion 2U is provided with a raised portion 20 raised upward, a concave portion 2 d , a plurality of openings in which a plurality of operation keys included in the input operation unit 4 are disposed, and a lamp cover 23 .

The protruding portion 20 is located outside a front lens 361 , which will be described later, of the projection lens 36 , and is connected to a part of the periphery of the projection opening 2 a. As shown in FIG. 2 , the protruding portion 20 has an inclined surface 20S facing the rear side, and the size in the front-rear direction is formed smaller on the upper end side than on the proximal end side.

As shown in FIG. 2 , the concave portion 2 d is formed behind the protruding portion 20 and has a rectangular shape in plan view, and its front, rear, left, and right side walls are inclined so that the cross-sectional shape becomes smaller as it goes downward. In addition, the inclined surface on the raised portion 20 side is formed along the inclined surface 20S of the raised portion 20 . An opening is provided on the inclined surface 20S, and the receiving portion 6B (see FIG. 3 ) is arranged inside the opening. And the opening part of the inclined surface 20S transmits infrared light, and is closed by the filter member 24 for removing visible light.

In addition, an opening is formed on the bottom surface of the recess 2d, and a focus adjustment lever 364L included in the later-described projection lens 36 of the optical unit 3 is exposed from the opening and disposed in the recess 2d. In addition, the tip of the rod 364L is formed not to protrude beyond the upper surface portion 2U.

The lamp cover 23 is provided on the back side of the upper surface portion 2U near the right end portion, and is opened and closed when the light source device 31 is replaced.

As shown in FIG. 2 , an air inlet 2i for taking in external air is provided on the left side surface 2L. Furthermore, a dustproof filter 25 is arranged inside the air inlet 2i.

Although detailed description is omitted, an exhaust port for exhausting warmed air inside the exterior case 2 to the outside is provided on the right side surface portion 2R.

A plurality of holes are provided in the rear surface portion 2B, and the ends of the plurality of input terminals 5 are exposed from the holes. Furthermore, various forms of information output from an external image output device (not shown) or the like are sent to the control unit 10 via the input terminal 5 .

The bottom portion 2T is provided with leg portions 26 that come into contact with the installation surface when the projector 1 is placed on a table or the like, and attachment portions (not shown) for attaching tools when the projector 1 is suspended from a ceiling or the like.

In addition, the leg portion 26 has two leg portions 26B (see FIG. 2 ) arranged near the left and right ends on the rear side, and a leg portion 26F (see FIG. 1 ) arranged at the left and right center portion on the front side.

The control unit 10 includes CPU (Central Processing Unit, central processing unit), ROM (Read Only Memory, read only memory), RAM (Random Access Memory, random access memory), etc., functions as a computer, and is used to perform the operation of the projector 1. control.

The optical unit 3 optically processes and projects the light beam emitted from the light source device 31 under the control of the controller 10 .

FIG. 4 is a schematic diagram of the optical unit 3 .

As shown in FIG. 4 , the optical unit 3 includes a light source device 31, an integrated illumination optical system 32, a color separation optical system 33, a relay optical system 34, an optical device 35, a projection lens 36, and a predetermined position where these components are arranged on the optical path. The housing 37 for the optical components.

As shown in FIG. 4, the light source device 31 includes a discharge-type light source 311 composed of an ultra-high pressure mercury lamp, a metal halide mercury lamp, etc., a reflector 312, a parallelizing lens 313 as a light-transmitting member, and a light source case for accommodating these members. Body 314 et al.

With regard to the light source device 31 , after being reflected by the reflector 312 , the light beam emitted from the light source 311 is aligned by the parallelizing lens 313 and emitted toward the integrated illumination optical system 32 .

As shown in FIG. 4 , the integrated illumination optical system 32 includes a first lens array 321 , a second lens array 322 , a polarization conversion element 323 , and a superposition lens 324 .

The first lens array 321 includes a plurality of small lenses, and divides the light from the light source device 31 into a plurality of light beams. The second lens array 322 and the overlapping lens 324 condense light from a plurality of parts of the first lens array 321 and overlap it with the light modulation device 3 described later of the optical device 35 . The polarization conversion element 323 includes a polarization separation film and a retardation plate, and unifies light in random polarization directions emitted from the light source device 31 into polarization in a predetermined direction.

The dichroic optical system 33 is equipped with two dichroic mirrors 331, 332 and a reflector 333, and has the function of separating the light beam emitted from the integrated illumination optical system 32 into red light (hereinafter, referred to as "R light"), green light (hereinafter, "R light"), and green light (hereinafter, "R light"). It is a function of three kinds of colored light, which are referred to as "G light") and blue light (hereinafter referred to as "B light").

The relay optical system 34 includes an incident-side lens 341 , a relay lens 343 , and mirrors 342 and 344 , and has a function of guiding the R light separated by the dichroic optical system 33 to the light modulation device 351 for R light. In addition, although the optical unit 3 is configured so that the relay optical system 34 guides the R light, it is not limited thereto, and may be configured to guide the B light, for example.

The optical device 35 has light modulators 351 provided for each color light (the light modulator for R light is denoted as 351R, the light modulator for G light is denoted as 351G, the light modulator for B light is denoted as 351G, and the light modulator for B light is denoted as 351B) and an orthogonal dichroic prism 352 as a color synthesis optical device.

Each light modulation device 351 includes a transmissive liquid crystal panel, an incident-side polarizing plate arranged on the light-incident side of the liquid crystal panel, and an output-side polarizing plate arranged on the light-emitting side of the liquid crystal panel, and modulates light of each color according to image information.

The cross dichroic prism 352 is formed by bonding four right-angle prisms together, and has a substantially square shape in plan view, and two dielectric multilayer films are formed on the interface between the bonded right-angle prisms. As for the cross dichroic prism 352, the dielectric multilayer film reflects the R light and the B light modulated by the light modulators 351R and 351B, and transmits the G light modulated by the light modulator 351G, thereby synthesizing three colors. modulated light.

The projection lens 36 is configured to include a plurality of lenses arranged along the optical axis 36Ax, and enlarges and projects the light emitted from the cross dichroic prism 352 onto a screen.

In addition, as described above, the light emitted from the projection lens 36 is positioned to the left (−X direction) of the center in the left-right direction (±X direction) of the exterior case 2 , and passes through the projection opening 2 a. That is, the exterior case 2 has a left side surface 2L (first side surface) and a right side surface 2R (second side surface) sandwiching the optical axis 36Ax of the projection lens 36, and the right side surface 2R (second side surface) is separated from The distance of the optical axis 36Ax is formed longer than the distance of the left side surface 2L (first side surface) from the optical axis 36Ax.

FIG. 5 is a cross-sectional view of projector 1 in the vicinity of raised portion 20 .

As shown in FIG. 5 , the projection lens 36 includes a front lens 361 located at the last stage (the frontmost side) of the optical path among a plurality of lenses, a guide tube 362 , a lens frame 363 , a focus ring 364 , and the like.

The front lens 361 is a lens that contributes to shortening the focal length and widening the angle of view, and has the largest outer diameter among the plurality of lenses. In addition, the front lens 361 has a shape in which a lower end portion is cut off, and light incident on the projection lens 36 is emitted upward from the front lens 361 . In the projector 1 , the projection lens 36 includes a front lens 361 that contributes to a short focal length and widening of the angle of view. With this configuration, it is configured as a proximity projection projector capable of projecting close to the projection surface.

As shown in FIG. 5 , the guide cylinder 362 has a holding portion 3621 for holding the peripheral portion of the front lens 361 and accommodates a plurality of lenses (not shown) arranged on the light incident side of the front lens 361 .

The lens frame 363 is formed to cover the peripheral portion of the holding portion 3621 and is fixed to the holding portion 3621 . In addition, the lens frame 363 also covers the peripheral portion of the front lens 361 . A part of the front side of the lens frame 363 is exposed from the exterior case 2, and the receiving part 6B is attached to the rear side.

The focus ring 364 is formed in a cylindrical shape, and as shown in FIG. 5 , a rod 364L protruding upward is provided on the outer peripheral surface. As described above, the lever 364L is disposed inside the recessed portion 2 d of the exterior case 2 , that is, behind the protruding portion 20 . Then, when the focus ring 364 is rotated by the grip lever 364L, the lens that contributes to the focus adjustment is moved to adjust the focus. In addition, the zoom adjustment of the projector 1 according to the present embodiment is an electronic zoom for enlarging or reducing an image during image processing, and is controlled by a remote control device (remote controller) for remotely operating the input operation unit 4 or the projector 1 . operation to proceed.

Returning to FIG. 1 , the input operation unit 4 includes a plurality of operation buttons operated by the user to perform various settings of the projector 1 and change and adjustment of the projection state. The plurality of operation buttons are arranged such that their ends are exposed from the upper surface portion 2U. The input operation unit 4 outputs an operation signal corresponding to an operation button operated by the user to the control unit 10 , and the control unit 10 performs control corresponding to the operated operation button. The input operation unit 4 will be described in detail later.

As the input terminal 5, there are input terminals capable of inputting image signals, audio signals, etc. from external devices (computers, video players, etc.) (for example, terminals conforming to the HDMI (registered trademark) standard, video terminals, audio terminals, etc.).

The receiving sections 6F, 6B receive optical signals (operation signals based on infrared light) emitted from the remote controller, and output electrical signals corresponding to the received optical signals to the control section.

As described above, the receiving unit 6F is disposed in the opening 2b (see FIG. 1 ) and receives an optical signal incident from the side where the projection lens 36 projects light, that is, an optical signal incident from the front of the projector 1 .

The receiving unit 6B is attached to the projection lens 36 and arranged in the raised portion 20 (see FIG. 1 ) in a direction to receive an optical signal incident from the side opposite to the side where the projection lens 36 projects light. That is, the receiving unit 6B receives an optical signal incident from behind the projector 1 .

Although detailed illustration is omitted, the detection unit 7 includes an imaging unit 71 and a transmission unit 72 as shown in FIG. 3 .

The imaging unit 71 includes, for example, an imaging element (not shown) such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and captures an image of a projection surface as a subject. Also, as shown in FIG. 3 , imaging unit 71 detects infrared light emitted from a pointer (for example, electronic pen 80 ) operated on projection surface SC, and outputs the detected information to control unit 10 . Based on the detection result of the imaging unit 71 , the control unit 10 projects a superimposed image obtained by superimposing the trace of the electronic pen 80 on the image information on the projection surface.

In order to control the electronic pen 80 operated on the projection surface SC, the transmitter 72 periodically emits an optical signal (signal based on infrared light). The electronic pen 80 emits infrared light in synchronization with the optical signal emitted from the transmitter 72 .

[Structure of the input operation section]

Here, the input operation unit 4 will be described in detail.

As shown in FIG. 1 , the input operation unit 4 includes a first operation unit 41 , a second operation unit 42 , and a third operation unit 43 .

The first operation unit 41 includes one first operation button 41 a , a circuit board not shown, cables, and the like, and is connected to the control unit 10 . In this embodiment, the first operation button 41a is configured as a push type, and functions as a static switching button for switching between stopping and resuming display of a projected image, and an automatic calibration button. The auto-calibration button is used to associate the operating position of the electronic pen 80 on the projection surface SC. Specifically, the first operation button 41a functions as a static switching button when pressed for less than a predetermined time, and functions as an automatic calibration button when pressed for a predetermined time or more.

As shown in FIG. 1 , the second operation unit 42 includes a plurality of second operation buttons 420 arranged on the left side (-X direction) of the lamp cover 23, a circuit board on which the plurality of second operation buttons 420 are mounted, and cables. (both illustrations are omitted), etc., and are connected to the control unit 10 .

Each of the second operation buttons 420 is configured as a push type. As the second operation buttons 420, there are a power button 42a, an input switching button 42b, a menu button 42c, a cursor button 42d, an OK button 42e, a return button 42f, and a help button 42g.

The power button 42a is used to switch the power on/off. The input switching button 42 b is used to switch to any one of the input terminals 5 .

The menu button 42 c switches between display and non-display of images of menus for performing various settings of the projector 1 . Four cursor buttons 42d are provided around the OK button 42e, and are used to select various items displayed on the image of the menu and the like. The enter button 42e is used to confirm the item selected by the cursor button 42d.

Although illustration is omitted, the image of the menu includes, for example, an advanced menu display area and an information display area. In the advanced menu display area, "image quality adjustment" and "video" are displayed as advanced menus. When any item is selected from the high-level menu, a sub-menu located one level below the selected item is displayed in the information display area. For example, items such as "color mode", "brightness", and "contrast" are displayed as a submenu of "image quality adjustment". And these items are selected with the cursor button 42d, and confirmed with the confirmation button 42e. In this way, the cursor button 42d and the OK button 42e are operated multiple times to select and confirm items in the menu, which corresponds to selecting the OK button.

The return button 42f is used to return to the previous operation screen. The help button 42g is used to display troubleshooting methods and the like.

As shown in FIG. 1 , the third operation unit 43 includes a slide-type trapezoidal deformation correction button 43a disposed behind the recessed portion 2d, a circuit board not shown, cables, etc., and is connected to the control unit 10 .

When correcting an image deformed into a trapezoidal shape such that the left side and right side of the projected image have different lengths, the trapezoidal deformation correction button 43 a is operated. The trapezoidal deformation correction button 43a is configured to be slidable in the left and right directions, and the correction amount changes according to the sliding amount. In addition, when correcting an image deformed into a trapezoidal shape so that the length of the upper side and the length of the lower side of the projected image are different, two of the four cursor buttons 42d are operated to correct the trapezoidal deformation.

The first operation button 41a will be further described.

As shown in FIG. 1 , the first operation button 41 a is arranged closer to the projection opening 2 a than the plurality of second operation buttons 420 and the trapezoidal deformation correction button 43 a. In addition, the first operation button 41a is arranged such that the distance between the plurality of second operation buttons 420 and the distance between the trapezoidal deformation correction button 43a is greater than the distance between adjacent buttons among the plurality of second operation buttons 420 . The interval between them is large.

Specifically, as shown in FIG. 1 , the first operation button 41 a is arranged on the right side (+X direction) of the raised portion 20 . That is, the 1st operation button 41a is arrange|positioned near the front surface part 2F between the right side surface part 2R (2nd side surface part) and the optical axis 36Ax, seeing from the upper surface part 2U side. Regarding the exterior case 2, since the distance between the right side surface 2R (second side surface) and the optical axis 36Ax is formed longer than the distance between the left side surface (first side surface) and the optical axis 36Ax, the first operation button 41a It is provided in the central region between the left side surface 2L (first side surface) and the right side surface 2R (second side surface) in the vicinity of the front surface portion 2F.

In addition, the first operation button 41 a is located substantially above the leg portion 26F, and is arranged at a position where the projector 1 does not shake even if it is pressed during operation.

Also, when the first operation button 41a is pressed for less than a predetermined time, the projector 1 performs a standstill operation. That is, when the projector 1 projects an image, when the first operation button 41 a is pressed for less than a predetermined time, the display of the projected image is stopped, specifically, a black image or the like is projected. Then, when the first operation button 41 a is pressed again for less than a predetermined time from the state where the display of the image is stopped, the projector 1 resumes the display of the image.

Also, when the first operation button 41a is pressed for a predetermined time or longer, the projector 1 performs a calibration process (executes an automatic calibration operation) in which the operation position of the electronic pen 80 on the projection surface SC is matched. That is, when the first operation button 41a is pressed for a predetermined time or longer, the projector 1 projects a calibration pattern image on the projection plane SC, and the imaging unit 71 captures the pattern image projected on the projection plane SC. Then, the projector 1 performs a process of associating the coordinates of the image projected on the projection plane SC with the coordinates of the captured image captured by the imaging unit 71 based on the captured image captured by the imaging unit 71 . As a result, the operation position of the electronic pen 80 on the projection surface SC can be matched with respect to the image projected on the projection surface SC, thereby enabling the projector 1 to map the operation of the electronic pen 80 to the image to be projected. A superimposed image in which the position overlaps with the desired position is projected on the projection plane SC.

In this way, the first operation button 41a is arranged in the vicinity of the projection opening 2a away from the plurality of second operation buttons 420 and the trapezoidal deformation correction button 43a. In addition, with regard to the projector 1, by operating the first operation button 41a once, the change of the projection state (static operation) and the adjustment of the projection state (automatic calibration operation) are performed. In addition, the projector 1 executes different operations (static operation, automatic calibration operation) according to different operations (operations with different pressing times) performed by the user on the first operation button 41 a.

As described above, according to the projector 1 of the present embodiment, the following effects can be obtained.

(1) Since the first operation button 41a is arranged closer to the projection opening 2a than the second operation button 420 and the trapezoidal deformation correction button 43a, the user of the projector 1 can easily recognize the first operation button 41a. Therefore, since the user can quickly change and adjust the projection state, it is possible to provide the projector 1 with good usability.

(2) The first operation button 41 a , the plurality of second operation buttons 420 , and the trapezoidal deformation correction button 43 a are arranged on the upper surface portion 2U of the exterior case 2 . The first operation button 41a is arranged such that the distance between the plurality of second operation buttons 420 and the distance between the trapezoidal deformation correction button 43a is greater than the distance between adjacent buttons among the plurality of second operation buttons 420 . The interval is large. Thereby, the user can recognize the 1st operation button 41a more clearly. Therefore, the user can more quickly operate the first operation button 41a, and cause the projector 1 to perform an operation corresponding to the operation of the first operation button 41a, switch the display, or the like.

(3) The first operation button 41 a is provided in a central region between the left side surface 2L and the right side surface 2R in the vicinity of the front surface portion 2F. Thereby, the user can recognize the 1st operation button 41a more clearly.

(4) Since the first operation button 41 a functions as a still switching button, the user can quickly stop and resume display of the projected image.

(5) Since the first operation button 41a functions as an automatic calibration button, when the user resets the projector 1 or changes the installation location, etc., the electronic pen 80 can be quickly adjusted to the projection surface SC. Correspondence to the operating position on the

In addition, the operation is easier to understand than the configuration in which the automatic calibration is performed by operating the operation button multiple times while checking the menu image, so even a user who is not familiar with the operation of the projector 1 can easily perform the automatic calibration.

(6) The user can cause the projector to execute the still operation and the automatic calibration operation by performing different operations on the first operation button 41 a. Thus, the first operation buttons 41a can be configured with a smaller number, so that the user can easily recognize the first operation buttons 41a, and the arrangement of the first operation buttons 41a, that is, the first operation unit 41 can be space-saving. .

(Modification)

In addition, the above-mentioned embodiment may be changed as follows.

Since the first operation button 41a in the above-described embodiment has a function as a static switching button and a function as an automatic calibration button, the first operational button 41a may also be configured as a dedicated operation button for a static switching button or a dedicated automatic calibration button. action button.

Although the first operation unit 41 in the above-described embodiment is configured to include one first operation button 41a, the first operation unit 41 may be configured to include two operation buttons. For example, the first operation unit 41 may be configured to include two buttons, namely, a first operation button dedicated to the static switching button and a first operation button dedicated to the automatic calibration button.

The adjustment of the projection state by the projector 1 may be correction of the trapezoidal deformation of the projected image. That is, the first operation button 41a may be configured to function as a trapezoidal deformation correction button for correcting the trapezoidal deformation of the projected image. For example, it may be configured such that when the first operation button 41a is operated, the projector 1 performs the trapezoidal deformation correction on the image based on the image captured by the imaging unit 71 and the detection result of the posture of the projector 1 using an acceleration sensor or the like. projection.

Although the projector 1 of the above-described embodiment includes the detection unit 7 , it may be a projector that does not include the detection unit 7 . With this configuration, no auto-calibration button is required.

Although the first operation button 41a in the above-described embodiment is configured as a push type, other than the push type, for example, a slide type or a method using a touch panel may be used.

Although the projector 1 of the above-described embodiment is configured as a proximity projection type, it may be a projector 1 other than the proximity projection type.

Although the projector 1 of the above-described embodiment is configured to perform zoom adjustment by electronic zoom, it may be configured such that a zoom adjustment mechanism capable of zoom adjustment is added to the projection lens 36 .

Although the projector 1 of the above-described embodiment employs a transmissive liquid crystal panel as the light modulation device, a reflective liquid crystal panel may also be used. In addition, as the light modulation device, a micromirror type light modulation device, such as a DMD (Digital Micromirror Device, digital micromirror device), etc. may also be used.

The light modulation device of the above-mentioned embodiment adopts a so-called three-plate system using three light modulation devices corresponding to R light, G light, and B light, but it is not limited to this, and a single-plate system may also be used. Alternatively, it can also be applied to a projector including two or more light modulation devices.

The light source device 31 is not limited to a device using the discharge-type light source 311 , and may be composed of other types of light sources and solid light sources such as light-emitting diodes and lasers.

Claims (6)

1. a projector, described projector possesses: light source; Optic modulating device, it is modulated the light penetrated from described light source according to image information; And projection lens, it will utilize the light projection after the modulation of described optic modulating device on the projection surface, and the feature of described projector is to possess:

External shell, it forms the exterior of this projector, has the projection peristome passed through for the light gone out from described projection lens projects;

At least 1 the 1st action button, it is performed operation to operate at least any one party of carrying out in the change and adjustment of the projection state of this projector by 1 time; With

Multiple 2nd action button, it comprises the selection in order to carry out the project in menu and to determine and by the selection confirming button operated repeatedly,

Described 1st action button is configured in than described multiple 2nd action button near the position of described projection peristome.

2. projector according to claim 1, is characterized in that,

Described external shell has upper surface part, and this upper surface part is in upside at this projector under the state of putting,

Described 1st action button and described multiple 2nd action button are configured in described upper surface part,

Interval between described 1st action button and described multiple 2nd action button is larger than the adjacent button interval each other in described multiple 2nd action button.

3. projector according to claim 2, is characterized in that,

Described external shell has the 1st side surface part and the 2nd side surface part of the optical axis clipping described projection lens, described 2nd side surface part apart from the distance of described optical axis than the distance of described 1st side surface part apart from described optical axis,

Observe from described upper surface part side, described 1st action button is configured between described 2nd side surface part and described optical axis.

4. the projector according to any one in claim 1 to claim 3, is characterized in that,

The static switching push button that described 1st action button switches as stopping and the recovery for the display to projected image plays function.

5. the projector according to any one in claim 1 to claim 3, is characterized in that,

Described projector also possesses:

Image pickup part, it is made a video recording to described projecting plane; With

Automatic calibration button, it is performed operation to make the coordinate of the pattern image of the calibration of described projection lens projects on described projecting plane, corresponding with the coordinate of the photographed images of the described pattern image taken by described image pickup part according to described photographed images,

Described 1st action button plays function as described automatic calibration button.

6. projector according to claim 1, is characterized in that,

According to the different operation that user carries out described 1st action button, perform mutually different actions.