JP2016173590A - Illuminating device - Google Patents

Abstract

Provided is an illumination device that can reduce the limitation on the types of illumination devices that can be applied when configuring an illumination device having an illumination function and an image projection function, and can simplify the configuration. .
An illumination device 10 having an illumination function and an image projection function includes a light source unit 110 that functions as a light source for illumination and an image projection, and image information for illumination or image projection using light from the light source unit. The image forming unit 120 that modulates the image based on the image forming unit 120, the projection unit 130 that has a lens that projects the image formed by the image forming unit on the projection surface, and the control that controls the light source and the image projecting unit Part 170 and connection part 200 that can be electrically connected to an existing lighting device fixture.
[Selection] Figure 1

Description

  The present invention relates to an illumination device having an illumination function and an image projection function.

  Conventionally, an illumination device having an illumination function and an image projection function is known (see, for example, Patent Document 1 and Patent Document 2).

  In the illumination devices disclosed in Patent Literature 1 and Patent Literature 2 (referred to as conventional illumination devices), a projector as an image projection device is provided on the inner wall surface of a globe provided in the illumination device, and a light source for illumination is provided. When the projector is turned off, the projector can project an image.

JP 2006-127845 A JP 2006-86024 A

  However, since the conventional illuminating device uses a globe to install the projector, it is assumed that the illuminating device having the globe is used, and the illuminating device having the illumination device and the image projection function is configured. In this case, the types of lighting devices that can be applied are limited.

  In addition, the conventional illumination device has a configuration in which a projector as an image projection device is incorporated in addition to the illumination light source, and therefore there is a light source for illumination and a light source for the projector, respectively. There are problems that the number of components increases, the price becomes expensive, and the weight also increases.

  Therefore, the present invention can reduce the limitation on the types of illumination devices applicable when configuring an illumination device having an illumination function and an image projection function, and can simplify the configuration. The purpose is to provide.

  [1] An illuminating device of the present invention is an illuminating device having an illuminating function and an image projecting function, which functions as a light source for illumination and functions as a light source for image projection, and from the light source unit An image forming unit that forms an image by modulating light based on image information for illumination or image projection, a projection unit that has a lens that projects an image formed by the image forming unit on a projection plane, and the light source And a control unit that controls the image projection unit, and a connection unit that can be electrically connected to an existing lighting device fixture.

  According to the illuminating device of the present invention, since the components necessary for image projection are incorporated in the illuminating device, the illuminating device having an illuminating function and an image projecting function regardless of the presence or absence of a glove or the like. Can be configured. For this reason, the restriction | limiting of the kind of illuminating device applicable as an illuminating device which has an illumination function and an image projection function can be reduced. Further, according to the illumination device of the present invention, the light source of the light source unit functions as a light source for illumination and also as a light source for image projection. Therefore, the light source for illumination and the light source for image projection are individually provided. There is no need to provide it. For this reason, a structure can be simplified and weight reduction can be achieved.

  Moreover, since the illuminating device of the present invention includes a connection portion that can be attached to an existing illuminating device fixture, the illumination of the present invention is similar to the case where an incandescent bulb, a bulb-type fluorescent lamp, a bulb-type LED lamp, or the like is attached. The device can be attached. For this reason, a general user can easily attach the lighting device of the present invention to a desired place without depending on a specialist.

  [2] In the illumination device of the present invention, the control unit controls the image projection unit when detecting an image projection instruction from a user in a state where the light source functions as the illumination light source. It is preferable to project an image.

  Thereby, it is possible to easily switch to the image projection from the state where the illumination device of the present invention functions for illumination.

  [3] The illumination device of the present invention preferably includes a distance measuring unit capable of measuring a distance to the projection plane.

  By having such a distance measuring unit, it is possible to project an image according to the distance to the image display surface measured by the distance measuring unit.

  [4] In the illuminating device of the present invention, the lens is a lens that expands and contracts when a voltage is applied to change a focal length, and the control unit measures the projection measured by the distance measuring unit. It is preferable to adjust the focal length of the lens by applying a voltage according to the distance to the surface.

  Thus, the focal length of the lens can be automatically adjusted according to the distance to the image projection surface, and the image projected on the projection surface can be made clear without adjustment by the user.

  [5] The lighting device according to the present invention includes an imaging unit capable of imaging an instruction operation performed by a user, and the control unit instructs the user based on captured image data output from the imaging unit. It is preferable to perform control corresponding to the operation.

  With this configuration, the user can perform various controls on the lighting device of the present invention without directly touching the lighting device of the present invention. The instruction operation performed by the user is, for example, an operation (gesture) in which the user shakes his / her hand to the left and right a predetermined number of times. Such control can be realized by associating the instruction operation performed by the user with the content to be controlled.

  [6] The lighting device of the present invention preferably has an audio output unit that can output audio.

  By adopting such a configuration, it is possible to output sound as well as image projection, thereby diversifying the uses of the lighting device of the present invention.

  [7] In the illumination device of the present invention, it is preferable that the control unit has a function of acquiring image information corresponding to an image to be projected from a network.

  Thereby, various images can be projected. For example, if information existing on a website can be acquired, necessary information can be easily displayed.

  [8] In the illumination device according to the aspect of the invention, it is preferable that the control unit has a function of projecting a selection screen capable of selecting a type of an image to be projected.

  Thereby, information in various fields can be displayed, and the uses of the lighting device of the present invention can be further diversified.

  [9] In the lighting device of the present invention, it is preferable that the lighting device mounting tool is any one of a light bulb mounting socket, a light bulb mounting receptacle, a hook rosette, and a hook ceiling.

  By attaching the connection part corresponding to such a lighting device attachment tool to the lighting device of the present invention, the lighting device of the present invention can be easily mounted as in the case of mounting a general lighting device. Moreover, since the removal at the time of removing the illuminating device of this invention is also easy, the change of an attachment place is also easy.

The figure which shows the structure of the illuminating device 10 which concerns on Embodiment 1 typically. The figure which shows typically the structure of the optical system of the illuminating device 10 which concerns on Embodiment 1. FIG. The figure shown in order to demonstrate the example of attachment of the illuminating device 10 which concerns on Embodiment 1. FIG. The figure which shows the projection example at the time of projecting an image on the upper surface 431 of the cooking table 430 by the illuminating device 10 which concerns on Embodiment 1. FIG. 3 is a flowchart shown for explaining the basic operation of the lighting apparatus 10 according to the first embodiment. The figure shown in order to demonstrate the illuminating device 20 which concerns on Embodiment 2. FIG. 9 is a flowchart shown for explaining a series of operations of the lighting apparatus 20 according to the second embodiment. The flowchart explaining the flow of a process when a user selects the kind of image from a menu selection screen. The figure shown in order to demonstrate the case where an illuminating device is attached to the hook ceiling 500 attached to the ceiling 410. FIG.

  Hereinafter, embodiments of the illumination device of the present invention will be described.

[Embodiment 1]
FIG. 1 is a diagram schematically illustrating a configuration of a lighting device 10 according to the first embodiment. In FIG. 1, an arrow indicated by a solid line indicates the flow of an electric signal, and a white arrow indicates the progress of light.

  As shown in FIG. 1, the illumination device 10 according to the first embodiment is externally attached to the illumination device main body 100 and the existing illumination device attachment tool (for example, a light bulb attachment receptacle or a light bulb attachment). The lighting device includes a connection portion (sometimes referred to as a connection tool) 200 for connection to a socket 300.

  The illuminating device main body 100 can measure the distance from the light source unit 110, the image forming unit 120, the lens 130 that projects the image formed by the image forming unit 120 onto the projection surface, and the distance from the illuminating device main body 100 to the projection surface. It includes a distance measuring unit 140, an imaging unit 150 that can capture an instruction operation (described later) performed by a user, an electrode 160 for applying a voltage to the lens 130, and a control unit 170. Each of these components will be described in detail later.

  In the lighting device 10 according to the first embodiment, the connection tool 200 is assumed to be the same as a base provided in an incandescent bulb, a bulb-type fluorescent lamp, a bulb-type LED lamp, or the like. For this reason, the illumination device 10 according to the first embodiment is similar to the incandescent bulb, the bulb-type fluorescent lamp, the bulb-type LED lamp, and the like, with the base attached to the illumination device attachment 300 such as a bulb attachment receptacle or a bulb attachment socket. By screwing, it can be connected to a light bulb mounting receptacle or a light bulb mounting socket.

  FIG. 2 is a diagram schematically illustrating the configuration of the optical system of the illumination device 10 according to the first embodiment. As shown in FIG. 2, the optical system of the illumination device 10 according to the first embodiment includes a light source unit 110, an image forming unit 120, and a lens 130 as a projection lens. The image forming unit 120 uses a liquid crystal light modulation element. Hereinafter, the image forming unit 120 is also referred to as a liquid crystal light modulation element 120. As described above, the optical system of the illumination apparatus 10 according to the first embodiment has substantially the same configuration as the single-plate liquid crystal projector. A combination of the liquid crystal light modulation element 120 and the lens 130 is referred to as an image projection unit 190.

  The light source unit 110 includes a light source 111 (a white light emitting diode), a collimator optical system 112, and a polarization conversion element 113. Although the detailed description is omitted here, the light source 111 emits light including red light, green light, and blue light. The light source 111 functions as a light source for illumination and functions as a light source for the image projection unit 190.

  The collimator optical system 112 is an optical element that collimates the light emitted from the light source 111. The polarization conversion element 113 is an element that converts the polarization of light passing through the collimator optical system 112. The polarization conversion element 113 transmits incident light as it is through one of the polarization components as it is, and reflects the other linear polarization component in a direction perpendicular to the illumination optical axis 110ax, and the polarization separation. A reflective layer that reflects the other linearly polarized component reflected by the layer in a direction parallel to the illumination optical axis 110ax, and a phase difference plate that converts the other linearly polarized component reflected by the reflective layer into one linearly polarized component And have.

  The liquid crystal light modulation element 120 is a light modulation element that emits full-color image light by modulating light from the light source unit 110 according to image information to be projected. The liquid crystal light modulation element 120 includes a color filter (not shown). The color filter is a Bayer color filter having a reflective dichroic filter, and the light from the light source unit 110 is red light for each pixel. It has a function as a color separation optical system for separating green light and blue light. It should be noted that other color separation optical systems may be used as the color separation optical system.

  The liquid crystal light modulation element 120 further includes an incident side polarizing plate (not shown) disposed on the polarization conversion element 113 side and an emission side polarizing plate (not shown) disposed on the lens 130 side. Have. With this configuration, light modulation of each color light is performed.

  The lens 130 is a lens that can be expanded and contracted (thickness changes) in accordance with the magnitude of the voltage applied to the electrode 160 (see FIG. 1), thereby adjusting the focal length (referred to as focus adjustment). Such lenses are known, for example, there are lenses that change in thickness from 750 micrometers to 375 micrometers when a voltage of 20 volts is applied to the electrodes.

  By using such a lens 130 as a projection lens, it is possible to enlarge and project an image formed by the liquid crystal light modulation element 120 on the projection surface. In addition, when using the illuminating device 10 which concerns on Embodiment 1 in a kitchen (refer FIG.3 and FIG.4), the upper surface 431 etc. of the cooking table 430 can be made into a projection surface.

  The distance measurement unit 140 measures the distance from the illumination device main body 100 to the projection plane, and the distance data output from the distance measurement unit 140 is sent to the control unit 170. The imaging unit 150 is installed so as to be capable of imaging an instruction operation (described later) performed by the user, and imaging data output from the imaging unit 150 is sent to the control unit 170.

  The control unit 170 has a function of controlling the light source 111, the liquid crystal light modulation element 120, the lens 130, the distance measurement unit 140, and the imaging unit 150 of the light source unit 110, and can acquire information existing on the website, for example. It has a Web information acquisition function, a communication function capable of receiving television broadcasts (hereinafter referred to as TV broadcasts), and the like. Further, the control unit 170 has a storage unit (not shown).

  In the illuminating device 10 configured as described above, the light source unit 110, the image forming unit 120, and the lens 130 are arranged on the same straight line. And when the said illuminating device 10 functions as an object for illumination, the white image is projected from the image projection part 190. FIG.

  FIG. 3 is a view for explaining an attachment example of the illumination device 10 according to the first embodiment. FIG. 3 illustrates a case where the lighting device 10 is attached to a kitchen 400 of a general house. The lighting device fixture 300 is a light bulb mounting receptacle (hereinafter abbreviated as a receptacle 300) originally attached to the ceiling 410 of the kitchen 400, and the lighting device 10 is connected to the receptacle 300 (see FIG. 1). It is attached by screwing. The lighting device 10 can project an image within a predetermined range G (also referred to as a projection range G) (see FIG. 4) of the upper surface 431 of the cooking table 430 installed on the floor 420 of the kitchen 400. A predetermined range including the projection range G is attached so that it can be illuminated.

  When the power switch is turned on, the illuminating device 10 first turns on the light source 111 of the light source unit 110 and functions as an illumination device. Note that the power switch here is not a switch provided in the lighting device 10 but a switch (referred to as a main switch) 440 provided on a wall of a room in which the lighting device 10 is attached (refer to FIG. 3).

  FIG. 4 is a diagram illustrating a projection example when an image is projected onto the upper surface 431 of the cooking table 430 by the lighting device 10 according to the first embodiment. As shown in FIG. 4, for example, a recipe for a desired dish is projected in the projection range G on the upper surface 431 of the cooking table 430. Such a recipe can be obtained from a website or the like. A person who cooks can cook while looking at the recipe projected in the projection range G.

  FIG. 5 is a flowchart shown for explaining the basic operation of the lighting apparatus 10 according to the first embodiment. Note that the flowchart shown in FIG. 5 mainly describes the operation performed by the control unit 170 of the lighting apparatus 10, but includes some operations performed by the user.

  When the main switch 440 is turned on by the user (step S1), the light source 111 of the light source unit 110 is turned on (step S2). Here, when the control unit 170 detects that the light source 111 is turned on, at this stage, the control unit 170 performs control to project a white image. Thereby, illumination with white light in which no image exists in the projection range G is performed, and this state is a state where the illumination device 10 according to the first embodiment functions for illumination.

  The focus adjustment of the lens 130 can be used not only when projecting an image but also when used as illumination. For example, when the focus adjustment of the lens 130 is performed so that the light for illumination spreads over as wide a range as possible (light diffuses), the light emitted from the illumination device main body 100 is in a range wider than the projection range G. It is very convenient when performing a series of operations. On the contrary, if the focus of the lens 130 is adjusted so that the light is projected within the projection range G, the light emitted from the illumination device main body 100 can be emitted as a spotlight, and when performing detailed work. Very convenient to. As described above, even when the lighting device 10 is functioned for illumination, by adjusting the focus of the lens 130, it is possible to adjust the spread of light and the uniformity of light for illumination.

  In a state where the illumination device 10 is functioning for illumination, the control unit 170 determines whether or not to measure the distance to the projection plane (step S3), and determines that the distance measurement is to be performed (in step S3). In the case of “Yes”, a distance measurement instruction is issued to the distance measurement unit 140, and the distance data measured by the distance measurement unit 140 is stored in a storage unit (not shown) (step S4). Here, the control unit 170 enters a state waiting for an image projection start instruction, and determines whether or not there is an image projection start instruction in the state waiting for the image projection start instruction (step S5).

  In step S3, the controller 170 determines whether or not to perform distance measurement. If the distance between the illumination device main body 100 and the projection surface is fixed, the distance measurement is performed once. For example, distance measurement need not be performed thereafter, and distance measurement can be omitted. Whether or not the distance measurement is performed can be determined based on whether or not the measured distance data is stored in the storage unit. If it is determined in step S3 that distance measurement is not performed (“No” in step S3), the control unit 170 does not output a distance measurement instruction to the distance measurement unit 140, and step S5 is performed. Proceed to the process.

  Here, when an image projection start instruction is issued from the user (“Yes” in step S5), the control unit 170 applies a predetermined value to the lens 130 based on the distance data stored in the storage unit. A voltage is applied to adjust the focus of the lens 130 (step S6), and image projection is started (step S7). The image projected in the projection range G is a clear image because the lens focus is adjusted according to the distance to the projection surface.

  Note that the image projection start instruction is performed when the user performs a predetermined operation (gesture) under the lighting apparatus main body 100. For example, the user performs an operation such as shaking his / her hand twice. Such an operation performed by the user is imaged by the imaging unit 150, and the captured image data is sent to the control unit 170. The control unit 170 determines what operation the user has performed based on the imaging data. Then, control corresponding to the determination result is performed. Such control can be realized by associating the instruction operation performed by the user with the content to be controlled.

  Then, in a state where the illumination device 10 is functioning for image projection, the control unit 170 is in a state waiting for an image projection end instruction, and determines whether there is an image projection end instruction in the state waiting for the image projection end instruction. (Step S8). Note that when the user issues an image projection end instruction, a predetermined operation is executed under the illumination apparatus main body 100, as in the case of issuing an image projection start instruction. For example, the user performs an operation such as shaking his / her hand four times to the left and right.

  Such an operation performed by the user is imaged by the imaging unit 150, and the captured image data is sent to the control unit 170. The control unit 170 determines what operation the user has performed based on the imaging data. Then, control corresponding to the determination result is performed. Here, when it is determined that the operation performed by the user is an image projection end instruction (“Yes” in step S8), the control unit 170 ends the image projection and applies a voltage to the lens 130. End (step 9). Thereby, the illuminating device 10 will be in the state which functions as an object for illumination.

  As described above, the illumination device 10 is configured to incorporate the image projection unit 190 (the image forming unit 120 and the lens 130) in the illumination device main body 100. An illumination device having an illumination function and an image projection function can be configured. For this reason, the restriction | limiting of the kind of illuminating device applicable as an illuminating device which has an image projection function can be reduced.

  In the illumination device 10, the light source 111 functions as a light source for illumination and also functions as a light source for image projection. For this reason, it is not necessary to provide the light source for illumination and the light source for image display separately, a structure can be simplified and weight reduction can be achieved.

  Further, since the lighting device 10 includes the connection tool 200 that can be electrically connected to the existing lighting device mounting tool 300, the lighting device 10 is implemented in the same manner as when an incandescent bulb, a bulb-type fluorescent lamp, a bulb-type LED, or the like is attached. The illuminating device 10 which concerns on form 1 can be attached. For this reason, a general user can easily attach the lighting device 10 to a desired place without depending on a specialist.

  In the illumination device 10, various instructions to the illumination device 10 such as an image projection start instruction and an image projection end instruction are made possible by actions (gestures) performed by the user, so the user directly touches the switch. There is no need to switch. In other words, since it is not necessary to directly touch the lighting device 10 with a hand touching food or a wet hand during cooking, the lighting device is not soiled or damaged by water. Moreover, since it does not touch a foodstuff with the hand which touched the illuminating device conversely, it will be excellent also in terms of hygiene.

  Further, the illumination device 10 uses a lens 130 that can be adjusted in focus by applying a voltage and applies a voltage corresponding to the distance to the projection surface so that focus adjustment can be performed. For this reason, when the illumination device 10 according to the first embodiment is used for image projection, the adjustment for making the image projected on the projection surface clearer can be automatically performed.

[Embodiment 2]
In the illumination device 20 according to the second embodiment, the type of image to be projected can be selected. Note that the configuration of the illumination device 20 according to the second embodiment is basically the same as that in FIG. 1, but audio may be output depending on the type of image to be projected. For this reason, the lighting apparatus 20 according to the second embodiment includes an audio output unit (speaker) 180.

  FIG. 6 is a diagram for explaining the illumination device 20 according to the second embodiment. FIG. 6 is a diagram schematically showing the configuration of the lighting device 20. Like FIG. 1, the solid arrows indicate the flow of electrical signals, and the white arrows indicate the progress of light. Is.

  As illustrated in FIG. 6, the lighting device 20 includes an audio output unit 180. Since it is the same as that of the illuminating device which concerns on Embodiment 1 except this, the same code | symbol is attached | subjected to the same component. Moreover, the illuminating device 20 shall be attached similarly to FIG.3 and FIG.4.

  In the lighting device 20, the types of images that can be projected include memo information input by the user from TV broadcasts, software keyboards, and the like, in addition to the information existing on the website as in the lighting device 10 according to the first embodiment. Suppose that

  FIG. 7 is a flowchart for explaining the operation of the illumination device 20. The flowchart shown in FIG. 7 mainly describes the operation performed by the control unit 170 as in the flowchart shown in FIG. 5, but includes some operations performed by the user. Steps S11 to S16 are the same as steps S1 to S6 in FIG.

  Here, a case where the control unit 170 determines that there is an image projection start instruction in step S15 will be described. If it is determined that there is an image projection start instruction, the focus adjustment (step S16) of the lens 130 is performed, and then a selection screen (referred to as a menu selection screen) capable of selecting the type of image to be projected is projected (step S16). S17). After displaying the menu selection screen, the control unit 170 determines whether or not the user has selected an image type from the menu selection screen (step S18).

  If the user selects the image type (“Yes” in step S18), the process proceeds to the path “A” (see FIG. 8), and the image type is not selected (step S18). If “No” in step S19, it is determined whether an instruction to end image projection has been issued (step S19). If an image projection end instruction has been issued, step S20 is performed. Step S20 is the same as step S9 in FIG.

  When selecting the type of image from the projected menu selection screen, for example, the user performs an operation of instructing the menu selection screen with a finger or the like. The operation performed by the user is imaged by the imaging unit 150, and the imaging data is given to the control unit 170. As a result, the control unit 170 can determine which image the user has selected.

  FIG. 8 is a flowchart for explaining the flow of processing when the user selects an image type from the menu selection screen. In the menu selection screen, there are three types of images that can be selected: “Web information”, “TV broadcast”, and “memo information”, and the user can select one of these three types. It is selectable.

  In FIG. 8, it is first determined whether or not the user has selected “Web information” (step 31). If the user has selected Web information (“Yes” in step S31), the user is selected. The selected Web information is projected (step S32). Here, the Web information selected by the user is a recipe for cooking as in the lighting device according to the first embodiment.

  After projecting the Web information, it is determined whether or not the user is performing any control operation (for example, page turning operation) (step S33). If any control operation is performed (“Yes” in step S33). ”), Screen control corresponding to the control operation is performed (step S34). The screen control performed here is, for example, control so that when the user performs an operation of turning a page, the recipe page is turned according to the operation. In this case as well, an operation performed by the user (page turning operation) is imaged by the imaging unit 150. Then, the control unit 170 determines the user's operation based on the imaging data output from the imaging unit 150, and performs screen control so that the recipe page is turned in response to the page turning operation performed by the user. .

  On the other hand, if it is determined that the user has not performed the control operation as described above (“No” in step S33), the image currently projected, that is, the image selected from the menu selection screen (selection) It is determined whether an instruction to end projection (referred to as an image) has been issued (step S35).

  If the control unit 170 determines that an instruction to end the selection image projection has been issued (“Yes” in step S35), the control unit 170 ends the projection of the selection image and outputs sound. If so, the audio output is also terminated (step S36). Thereafter, the process proceeds to the path “B”, and it is determined whether or not an image projection end instruction has been issued (step S19 in FIG. 7). Note that if the selection image projection end instruction has not been issued in step S35 in FIG. 8 (in the case of “No”), the process proceeds to the path “C1” and returns to step 32 to continue projecting Web information.

  On the other hand, if the process proceeds to the path “B” in step S36, it is determined in step S19 in FIG. 7 whether or not an image projection end instruction has been issued. The process of determining whether or not the image projection end instruction has been issued is a process of determining whether or not to end the projection of the image and cause the lighting device 20 to function as illumination. If an image projection end instruction is issued (“Yes” in step S19), the image projection is ended and voltage application to the lens 130 is also stopped (step S20). Thereby, the said illuminating device 20 functions as an object for illumination. On the other hand, if the image projection end instruction has not been issued (in the case of “No” in step S19), the process returns to step S17, and the menu can be selected again.

  By the way, when it is determined in step S31 in FIG. 8 that the information selected by the user is not “Web information” (in the case of “No” in step S31), the information selected by the user is “memo information”. (Step S37), and if the user has selected memo information (“Yes” in step S37), a memo information input screen (for example, software-keyboard) is projected (step S37). Step S38).

  Then, it is determined whether or not any control operation (for example, an operation in which a user inputs a character or the like on the software-keyboard) is performed by the user (step S39), and it is determined that some control operation has been performed. In the case of “Yes” in step S39, screen control corresponding to the control operation is performed (step S40). In this case, the screen control is a control in which the imaging unit 150 captures characters or the like input by the user, and the control unit 170 projects memo information based on the imaging data output from the imaging unit 150.

  On the other hand, when it is determined that the user has not performed the control operation as described above (“No” in step S39), the process of step S35 is performed. Since the operation after step S35 is the same as described above, the description thereof is omitted. In step S35, if the selected image projection end instruction has not been issued (in the case of "No" in step S35), the process proceeds to the path "C2" and returns to step S38 to continue projecting the memo information input screen. To do.

  If it is determined in step S37 in FIG. 8 that the information selected by the user is not “memo information” (“No” in step S37), a TV broadcast is projected and the audio output unit 180 Is operated (ON) (step S41). Then, it is determined whether or not any control operation (for example, channel switching) has been performed by the user (step S42). When it is determined that some control operation has been performed ("Yes" in step S42) ) Performs screen control according to the control operation (step S43).

  On the other hand, when it is determined that the user has not performed the control operation as described above (“No” in step S42), the process of step S35 is performed. Since the operation after step S35 is the same as described above, the description thereof is omitted. In step S35, if the selection image projection end instruction has not been issued, the process proceeds to the path "C3" and returns to step S41 to continue projection of the TV broadcast.

  As described above, in the illumination device 20, since the type of image to be projected can be selected and the selected image can be projected, in addition to the effects obtained by the illumination device 10 according to the first embodiment, the image projection function. The effect that the usage as the illuminating device 10 having can be diversified can be obtained.

  Although the present invention has been described based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist thereof. Such modifications are also possible.

  (1) The type and shape of the lighting device main body 100 for configuring the lighting device according to each of the above embodiments is limited to the type and shape of the lighting device main body as shown in each of the above embodiments. is not. For example, the lighting device main body 100 has a spherical shape in each of the embodiments described above, but is not limited to a spherical shape, and may have various shapes such as a cylindrical shape and a rectangular parallelepiped.

  (2) In each of the above embodiments, the case where the lighting device of the present invention is attached to the ceiling has been illustrated, but the attachment location is not limited to the ceiling, and may be a wall or a pillar. It is also possible to use it as a handy light instead of installing it on the ceiling, wall, or pillar. When used as a handy light, the connection tool 200 may be adapted to a socket for attaching the light bulb of the handy light.

  (3) In each of the above-described embodiments, the case where the lighting device of the present invention is attached to a kitchen in a house has been illustrated. Yes, it can be attached not to a house but to a store, for example.

  (4) In each of the above embodiments, the lighting device of the present invention is attached to the lighting device attachment (receptacle) 300 that is directly attached to the ceiling. However, the present invention is not limited to this. When the lighting device fixture (for example, a bulb socket) 300 is suspended by the connection cord, the lighting device of the present invention can be attached to the bulb socket.

  (5) In each of the above embodiments, the connection tool 200 is exemplified as a connection tool (screw-type base) that can be connected to a light bulb mounting receptacle or a light bulb mounting socket. For example, when the hanging ceiling or the hanging rosette is attached to the ceiling or the like as the lighting device attachment tool, a connecting device that can be connected to the hanging ceiling or the hanging rosette may be used. In this case, a connection cord may be extended from the lighting device main body 100, and a connector that can be hooked to the tip of the connection cord and connected to a ceiling or hook rosette is attached.

  FIG. 9 is a view for explaining a case where the lighting device is attached to the hook ceiling 500 attached to the ceiling 410. Here, although the case where the illuminating device 10 which concerns on Embodiment 1 is attached is demonstrated, the illuminating device 20 which concerns on Embodiment 2 can also be attached similarly to the illuminating device 10 which concerns on Embodiment 1. FIG. In FIG. 9, the internal configuration of the lighting device main body 100 is not shown.

  As shown in FIG. 9, a connection tool 210 for the hook ceiling 500 is used as a connection tool when the lighting device 10 is attached to the hook ceiling 500. Then, as shown in FIG. 9A, the connection cord 211 is extended from the lighting device main body 100, and the connecting tool 210 for the ceiling 500 is attached to the tip of the connection cord 211. With such a configuration, the hook sealing connector 210 can be attached to the hook ceiling 500 attached to the ceiling 410 as shown in FIG. 9B.

  In addition, in FIG. 9, although the case where the illuminating device 10 which concerns on Embodiment 1 was attached to the hooking ceiling 500 was illustrated, the illuminating device 10 which concerns on Embodiment 1 can also be attached to a hooking rosette. In this case, although not shown, a hooking rosette connector may be used as the connector on the lighting device 10 side.

  (6) In each of the embodiments described above, the image information to be projected is not limited to Web information, TV broadcast, or the like. For example, image information stored in a personal computer can be projected.

  (7) In each of the above embodiments, the liquid crystal light modulation element is used as the light modulation element in the image forming unit 120. However, the present invention is not limited to this, and a digital micromirror device is used. There may be.

  (8) In the above embodiment, when the illumination device 10 functions for illumination, the liquid crystal light modulation element 120 is projected as a white image and projected from the image projection unit 190, but the present invention is not limited thereto. In the case of functioning for illumination, the liquid crystal light modulation element 120 may be transparent (does not generate an image and remains transparent), or the liquid crystal light modulation element 120 is mechanically separated from the light source unit 110. You may make it avoid. By configuring in this way, the predetermined brightness can be obtained more efficiently.

  (9) In the above embodiment, the focus adjustment of the illumination device 10 controls the thickness by applying a voltage to the electrode 160 to the lens 130, but is not limited thereto, and the lens 130 is screwed. As an equation, the focus may be adjusted manually. With this configuration, the number of parts can be reduced, the lighting device can be further simplified, and the weight can be further reduced.

  DESCRIPTION OF SYMBOLS 10,20 ... Illuminating device, 100 ... Illuminating device main body, 110 ... Light source part, 111 ... Light source, 112 ... Collimator optical system, 113 ... Polarization conversion element, 120 ... Image forming unit (liquid crystal light modulation element), 130 ... lens, 140 ... distance measuring unit, 150 ... imaging unit, 160 ... electrode, 170 ... control unit, 180 ... sound Output unit 190 ... Image projection unit 200 ... Connector 210 ... Connector for hook sealing, 211 ... Connection cord, 300 ... Lighting device fixture, 400 ... Kitchen , 410 ... Ceiling, 430 ... Cooking table, 431 ... Upper surface of cooking table, 500 ... Hook ceiling, G ... Projection range

However, conventional lighting devices, because you have to install the projector using a glove, a prerequisite to use a lighting device comprising a glove, constitute an illumination device having an illumination function and the image projection function In this case, the types of lighting devices that can be applied are limited.

Such an operation performed by the user is imaged by the imaging unit 150, and the captured image data is sent to the control unit 170. The control unit 170 determines what operation the user has performed based on the imaging data. Then, control corresponding to the determination result is performed. Here, when it is determined that the operation performed by the user is an image projection end instruction (“Yes” in step S8), the control unit 170 ends the image projection and applies a voltage to the lens 130. The process ends (step S9 ). Thereby, the illuminating device 10 will be in the state which functions as an object for illumination.

As described above, in the illumination device 20, since the type of image to be projected can be selected and the selected image can be projected, in addition to the effects obtained by the illumination device 10 according to the first embodiment, the image projection function. The effect that the usage as the illuminating device 20 which has can be diversified more is acquired.

Claims (9)

An illumination device having an illumination function and an image projection function,
A light source unit that functions as a light source for illumination and functions as a light source for image projection;
An image forming unit that forms an image by modulating light from the light source unit based on image information for illumination or image projection; and
A projection unit having a lens for projecting an image formed by the image forming unit on a projection surface;
A control unit for controlling the light source and the image projection unit;
And a connecting portion electrically connectable to an existing lighting device fixture. The lighting device according to claim 1.
The controller controls the image projection unit to project an image when detecting an image projection instruction from a user in a state where the light source functions as the illumination light source. apparatus. The lighting device according to claim 1 or 2,
An illumination device further comprising a distance measuring unit capable of measuring a distance to the projection surface. The lighting device according to claim 3.
The lens is a lens whose focal length changes due to expansion and contraction when a voltage is applied,
The illumination device according to claim 1, wherein the control unit adjusts a focal length of the lens by applying a voltage according to a distance to the projection plane measured by the distance measurement unit. In the illuminating device in any one of Claims 1-4,
It has an imaging unit that can image the instruction operation performed by the user,
The illumination device according to claim 1, wherein the control unit performs control corresponding to an instruction operation performed by the user based on captured image data output from the imaging unit. In the illuminating device in any one of Claims 1-5,
An illuminating device having an audio output unit capable of outputting audio. In the illuminating device in any one of Claims 1-6,
The control unit has a function of acquiring image information corresponding to an image to be projected from a network. In the illuminating device in any one of Claims 1-7,
The control unit has a function of projecting a selection screen capable of selecting a type of an image to be projected. In the illuminating device in any one of Claims 1-8,
The lighting device according to claim 1, wherein the connecting portion is a connecting portion connectable to any one of a socket for mounting a light bulb, a receptacle for mounting a light bulb, a hooking rosette, and a hooking ceiling.

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