JP2011170296A - Light projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light projector capable of projecting the light of a specified shape, with a simple configuration. <P>SOLUTION: The light projector includes: a light projecting part 1 that projects the light in order to project the light toward an optional space and an irradiation target body 10 set in the space; a projection light dividing/blocking part 2 having a plurality of division areas to divide the projection light projected from the light projecting part 1, to block the projection light by each of the division areas or transmit the projection light; and a projection area-setting means 20 configured to set a projection area in which the projection light 1a is allowed to pass by the projection light dividing/blocking part 2 and a non-projection area in which the projection light is blocked by the projection light dividing/blocking part 2, in a projection allowance area 1A of the light projecting part 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an optical projection apparatus that projects light onto a specific place.

  Conventionally, as described in Non-Patent Document 1 below, as a lighting device that changes the shape of projection light, a filter called a gobo or a mask is installed in the projection device, and projection light is emitted from the projection device. The projected projection part is shielded from light. As a result, the projection light that has passed through the filter is cut into a specific shape. Specifically, in a conventional illumination system, a filter (gobo or the like) cut out in a base shape composed of circles, triangles, squares, and the like is attached to a projection device to shape the contour of projection light.

  In addition, in a conventional illumination system, when it is desired to project along a specific shape, the projection position of the projection light emitted from the projection device is adjusted to the specific location, and then roughly divided by the aperture function and zoom function of the projection device. The shape of the projection light is adjusted.

  Further, conventionally, there is an illumination system that performs a space effect by using a projector, which is a projection device, instead of a lighting fixture (light). The lighting fixture used for this lighting system is also called a moving projector. This moving projector emits image light as projection light. For this reason, the shape and color of the projection light can be freely set and changed as a moving image.

  However, even with this illumination system, when shaping the projection light, a method is used that roughly matches the contour of the projection light to the shape of the object to be projected, using the base shape, as with conventional illumination systems. Has been.

  Furthermore, conventionally, as a stereoscopic display device that can effectively express the surface texture of an object in a stereoscopic shape model, a technique described in Patent Document 1 below is known.

  Furthermore, conventionally, as in Patent Document 2, a light projection device and an illumination device that can project light in a shape desired by a user by controlling the shape of the projection light are known.

http://www.egghouse.com/gobo/about.htm http://www.ushiolighting.co.jp/product/productimage/pdf/dl2.pdf

JP 2006-338181 A JP 2009-225432 A

  However, in the conventional illumination system described above, since the shape filter, aperture, and zoom prepared in advance are used, it is only possible to roughly match the shape of the projection light to the object to be projected. In addition, in the mask processing for superimposing the base shape on the image, the base shape can be matched with the shape of the object to be projected, so that highly accurate shape matching is possible. However, the base shape is created as a two-dimensional shape. For this reason, when an arbitrary-shaped projection object is viewed from different directions, it is necessary to use different base shapes, and a plurality of projection devices arranged at different positions simultaneously project projection light toward the projection object. It is difficult to divert to the technology to project.

  In the invention of Patent Document 2, although the shape of the projection light can be automatically controlled, it may be difficult for anyone to set easily.

  Therefore, the present invention has been proposed in view of the above-described circumstances, and an object thereof is to provide an optical projection apparatus that can project light in a specific shape with a simple configuration.

  A light projection apparatus according to a first invention for solving the above-mentioned problems is a light projection apparatus for projecting light onto an arbitrary space and an irradiated object installed in the space, and light projection means for projecting light. A plurality of divided areas for dividing the projection light projected from the light projection means, and a projection light division light shielding means for shielding or passing the projection light by each divided area, and a projection possible range of the light projection means And a projection range setting means for setting a projection range in which the projection light is allowed to pass by the projection light division light shielding means and a non-projection range in which the projection light is shielded by the projection light division light shielding means. It is.

  The optical projection device according to the first invention, wherein the second invention further comprises shape drawing means for drawing an arbitrary shape in accordance with a user operation and generating shape data based on the drawn shape, The projection range setting means uses the shape based on the shape data generated by the shape drawing means as the projection range.

  An optical projection apparatus according to a second aspect of the present invention is the optical projection apparatus according to the third aspect, wherein the shape drawing unit generates drawing trajectory data in accordance with a user operation, and the drawing trajectory data is transmitted to the projection range setting unit in real time. The projection range setting means sets the projection range based on the output drawing trajectory data, and projects the projection light in real time from the light projection means via the projection light division light shielding means. It is characterized by this.

  The optical projection apparatus according to any one of the first to third inventions, wherein the fourth invention is a projection range for adjusting at least one of a position or a shape of the projection range set by the projection range setting means. It further comprises an adjusting means.

  The light projection apparatus according to any one of the first to fourth aspects, wherein the fifth aspect of the invention further includes a drive unit that vibrates the projection light division light blocking unit. .

  A light projection apparatus according to any one of the first to fifth aspects, wherein the sixth invention comprises a plurality of the light projection means and the projection light division light shielding means, and is irradiated by each light projection means. It is characterized by projecting the body.

  The optical projection apparatus according to any one of the first to sixth inventions, wherein the seventh invention is a data storage means for storing projection range data set by the projection range setting means, and the storage means. Timeline setting means for setting the update order of the projection range data stored in the time axis on the time axis, wherein the projection range setting means is a projection range set on the time axis set by the timeline setting means Data is read from the data storage means, and the projection range and the non-projection range are updated.

  The optical projection apparatus according to a seventh aspect is the optical projection apparatus, wherein the data storage means stores arbitrary music data, and the timeline setting means determines the update order of the music data as the time axis. It is characterized by comprising voice generation means for reading the music data set on the time axis set by the timeline setting means and reading the data from the data storage means and updating the music. .

  The optical projection apparatus according to the seventh or eighth invention, wherein the ninth invention comprises communication means for communicating with a server for storing projection range data or music data set by the projection range setting means. The timeline setting means sets the projection range data or music data received from the server on the time axis.

  The optical projection apparatus according to any one of the first to ninth inventions, wherein the tenth invention is an imaging unit having an imaging range of a space including a projectable range of the optical projection unit, and the imaging unit. A captured image generating unit that generates image data captured by the image capturing unit, a conversion table that describes a correspondence relationship between an image position in the captured image generated by the captured image generating unit and each divided region in the projection light division light shielding unit. Conversion table generating means for generating a projection range, projection range extraction setting means for setting a condition for extracting a projection range on which projection light is projected, and storage by the captured image storage means in accordance with the conditions set by the projection range extraction setting means Analyzing the captured image data, and separating a projection range and a non-projection part into a projection range classification unit, and a conversion table generated by the conversion table generation unit A projection range extracting unit that converts the pixel position of the captured image data classified into the projection range by the projection range classifying unit into the divided regions, and the projection range setting unit includes the projection range extraction unit. The projection light is projected by the divided area converted by the means.

  According to the present invention, since the projection range setting unit sets the projection range and the non-projection range and operates the projection light division / shielding unit, only the portion transmitted by the projection light division / shielding unit can be set as the projection range. It is possible to project light in a specific shape with a simple configuration.

1 is a block diagram of an optical projection device shown as a first embodiment of the present invention. It is a perspective view which shows the state which projected the projection light directly with respect to the to-be-irradiated body from the light projection part. It is a perspective view which shows the state which projected the transmitted light through the projection light division | segmentation light-shielding part in the optical projector shown as 1st Embodiment of this invention. In the light projection device shown as the first embodiment of the present invention, it is a diagram showing a state in which transmitted light that is a part of the projection light is projected by the projection light division light shielding unit. FIG. 3 is a perspective view illustrating a configuration example of a projection light division light shielding unit in the light projection apparatus illustrated as the first embodiment of the present invention. It is a block diagram of the optical projector shown as 2nd Embodiment of this invention. It is a figure which shows the state which projected the transmitted light which shielded some projection light with the projection light division | segmentation light-shielding part in the optical projector shown as 2nd Embodiment of this invention. It is a block diagram of the optical projector shown as 3rd Embodiment of this invention. It is a block diagram of the optical projector shown as 4th Embodiment of this invention. It is a perspective view which shows one structural example provided with the imaging part in the optical projector shown as 4th Embodiment of this invention. It is a block diagram of the optical projector shown as 5th Embodiment of this invention. It is a perspective view which shows the state which projected the transmitted light through the projection light division | segmentation light-shielding part in the light projector shown as 5th Embodiment of this invention. In the optical projection apparatus shown as 5th Embodiment of this invention, it is a perspective view which shows the state which projected the transmitted light through the vibrated projection light division | segmentation light-shielding part. It is a block diagram of the light projector shown as 6th Embodiment of this invention. It is a block diagram of the optical projector shown as 7th Embodiment of this invention. It is a block diagram of the other light projector shown as 7th Embodiment of this invention. It is a block diagram of the optical projector shown as 8th Embodiment of this invention. In the light projection device shown as an 8th embodiment of the present invention, it is a perspective view showing signs that penetration light is permeate | transmitted by each light shading part, and the penetration light is imaged and a conversion table is created. (A) is the front view which projected the transmitted light only to a part of panel, (b) is a figure which shows the structure of the other projection light division | segmentation light-shielding part in the optical projection apparatus to which this invention is applied.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
The optical projection apparatus according to the first embodiment to which the present invention is applied has a functional configuration as shown in FIG. For example, as shown in FIGS. 3 and 4, the light projection apparatus divides the projection light projected from the light projection unit 1 by the projection light division light shielding unit 2 and projects the projection light onto the irradiated object 10. To do.

  This light projection apparatus uses a light source such as a spotlight as the light projection unit 1. The light projection apparatus divides the projection light 1 a projected from the light projection unit 1 into a lattice shape by the projection light division light shielding unit 2. The light projection apparatus easily realizes high-performance trimming illumination by shielding an arbitrary divided region.

  The light projection unit 1 is preferably a spotlight, but may be a projector or the like. For example, a general spotlight capable of projecting only monochromatic and single-shaped projection light 1 a is used as the light projection unit 1. The projector has a lower luminance and a higher color temperature than a general spotlight. By using the spotlight as the light projection unit 1, the light projection apparatus can project the projection light 1a having luminance and illumination temperature that cannot be realized by the projector.

  The light projection device projects light onto an arbitrary space and the irradiated object 10 installed in the space. For this purpose, as shown in FIG. 1, the light projection apparatus includes a light projection unit 1, a projection light division light blocking unit 2, and a projection range setting unit 3.

  The projection light division light shielding unit 2 has a plurality of division regions for dividing the projection light projected from the light projection unit 1. The projection light division light shielding unit 2 shields or allows the projection light to pass through each divided area (projection light division light shielding means). Thereby, the projection light division | segmentation light-shielding part 2 makes the transmitted light 1b which permeate | transmitted the projection light 1a. This transmitted light 1b is projected toward an arbitrary space.

  The projection light division light blocking unit 2 is configured, for example, as shown in FIG. The projection light division light shielding unit 2 includes a plurality of light light shielding units 2a and a rotation support mechanism 2b. The light shielding part 2a is provided corresponding to each divided area. The rotation support mechanism 2b has a drive mechanism such as a motor (not shown), and generates a torque for rotating the projection light 1a in the direction of allowing the projection light 1a to pass as the transmitted light 1b by each light shielding portion 2a.

  The light shielding unit 2a is switched by the rotation support mechanism 2b between a light shielding state 2a-1 that forms a non-projection range and a light transmission state 2a-2 that forms a projection range. In the light shielding unit 2a, the state standing upright with respect to the rotation support mechanism 2b is a state 2a-1 that shields light, and the state rotated by the rotation support mechanism 2b and parallel to the light incident direction is the projection light 1a. It becomes the state 2a-2 which permeate | transmits.

  The projection range setting unit 3 sets a projection range in which the transmitted light 1b is projected and a non-projection range in which the transmitted light 1b is not projected (projection range setting unit). In the projection range, the projection light 1a is allowed to pass through the projection light division light blocking unit 2. In the non-projection range, the projection light 1 a is shielded by the projection light division light shielding unit 2. The projection range setting unit 3 supplies projection range data 3 a representing the projection range to the projection light division light blocking unit 2. Thereby, the projection range setting unit 3 drives the rotation support mechanism 2b so that the light shielding unit 2a corresponding to the projection range is in the light transmission state 2a-2. As shown in FIGS. 3 and 4, the projection range setting unit 3 is built in the control device 20 including an output circuit that outputs the projection range data 3 a and the like.

  In the case where there is no projection light dividing light blocking unit 2, when the irradiated objects 10 </ b> A and 10 </ b> B (hereinafter simply referred to as “irradiated object 10”) are irradiated, light is projected from the light projecting unit 1. The projected light 1a is as shown in FIG. That is, the projection light 1a is projected onto the entire surface of the irradiated object 10 and the background projectable area 1A.

  The projection light division light shielding unit 2 is installed between the light projection unit 1 and the irradiation target 10, and the light light shielding units 2a corresponding to all the divided areas of the projection light division light shielding unit 2 are set to the light transmission state 2a-2. In this case, as shown in FIG. 3, the entire surface of the projectable area 1A becomes the light projection area 1B. A dotted line shown in FIG. 3 represents a divided area. When only the light shielding part 2a corresponding to the irradiated object 10 is set to the light transmission state 2a-2 in the divided area of the projection light dividing light shielding part 2, as shown in FIG. Only the surface of 10 can be used as the light projection area 1B, and the other part can be used as the non-light projection area 1C.

  As described above, according to the light projection apparatus shown as the first embodiment to which the present invention is applied, the light shielding unit 2a corresponding to the light projection area 1B and the light shielding unit 2a corresponding to the non-light projection area 1C are provided. The projection light division light blocking unit 2 is operated by setting the projection range setting unit 3. As a result, according to the light projection device, only the portion of the projectable area 1A that is transmitted by the projection light splitting / shielding unit 2 can be used as the light projection area 1B. Can be projected.

  The light projection unit 1 may be a general lighting fixture such as a spotlight. Thereby, the light projection apparatus realizes a high-performance trimming effect that can irradiate only the irradiated object 10 using a general lighting fixture. When the light projection unit 1 is a projector, the projection range data 3a needs to be composed of video data. For this reason, the shape and color of the light projection area 1B, and distortion correction processing have been realized with video technology. However, according to the optical projection apparatus to which the present invention is applied, since video data is not used, the position (projection range) or non-light of the light shielding unit 2a as the optical projection area 1B of the divided projectable areas 1A. Only the object to be irradiated 10 can be illuminated brightly only by determining the position (non-projection range) of the light shielding part 2a as the projection area 1C.

[Second Embodiment]
Next, an optical projection apparatus according to the second embodiment will be described. In addition, about the part similar to the above-mentioned 1st Embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The light projection device shown as the second embodiment is different from the light projection device shown as the first embodiment in that a shape drawing unit 30 is provided as shown in FIG.

  The shape drawing unit 30 draws an arbitrary shape in accordance with a user operation, and generates shape data 30a based on the drawn shape (shape drawing unit). The shape data 30a is coordinate information indicating what shape the user has drawn in the projectable area 1A. The shape data 30a is supplied to the projection range setting unit 3.

  The projection range setting unit 3 generates projection range data 3a for specifying the light shielding unit 2a that transmits light so that the shape based on the shape data 30a generated by the shape drawing unit 30 is the light projection area 1B. The projection range data 3a includes the identification information of the light shielding unit 2a that is in the light transmission state 2a-2 corresponding to the drawn coordinate information. The shape data 30a is supplied to the projection light division light blocking unit 2.

  The projection light splitting / shielding unit 2 operates to receive the projection range data 3a and set the light shielding unit 2a corresponding to the light projection area 1B specified by the projection range data 3a to the light transmission state 2a-2. Thereby, the light projector can make the light-shielding part 2a according to the shape drawn by the shape drawing part 30 into the light transmissive state 2a-2.

  Specifically, as shown in FIG. 7, the shape drawing unit 30 is a pen tablet system including a pointing device such as a mouse, a liquid crystal panel 30b configured as a display unit of a monitor device, and a pen 30c operated by a user. It is configured. Here, it is desirable that the entire screen of the liquid crystal panel 30b corresponds to the entire range of the projectable area 1A.

  In addition, it is desirable that the liquid crystal panel 30b has a grid that is set so as to coincide with the divided area of the projection light division light shielding unit 2. The user performs an operation of selecting a divided region desired to be in the light transmission state 2a-2 (projection range) or a divided region desired to be in the light shielding state 2a-1 (non-projection range). Thereby, the shape drawing unit 30 can generate the shape data 30a for specifying the light shielding unit 2a corresponding to the divided region selected by the user.

  Furthermore, when the shape drawing unit 30 is configured by a personal computer or the like, a cell corresponding to the divided area may be displayed on the liquid crystal panel 30b. Even in this configuration, the light shielding unit 2a is set in the light transmission state 2a-2 in response to an operation of a pointing device such as a mouse connected to a personal computer or a pen 30c of a pen tablet system that directly contacts the liquid crystal panel 30b. Shape data 30a designating (projection range) or light shielding state 2a-1 (non-projection range) can be generated.

  As described above, according to the light projection device shown as the second embodiment, whether each light shielding unit 2a is set as a projection range or a non-projection range based on the shape input by the user by the shape drawing unit 30. decide. Then, the projection light division light shielding unit 2 operates the light light shielding unit 2a so as to be within the determined projection range. Thereby, the light projection device can trim the projection light 1a according to the shape input by the user, and project the transmitted light 1b onto the irradiated object 10. Therefore, according to this light projection apparatus, the user can intuitively set the light projection area 1B so as to draw a picture.

[Third Embodiment]
Next, an optical projection apparatus shown as the third embodiment will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the optical projection apparatus shown as the third embodiment, as shown in FIG. 8, the shape drawing unit 30 generates drawing trajectory data 30 d according to the user's operation, and the drawing trajectory data 30 d is input to the projection range setting unit 3. Output in real time.

  The projection range setting unit 3 sets the projection light division / shielding unit 2 corresponding to the light projection area 1B based on the output drawing trajectory data 30d, and the real time from the light projection unit 1 via the projection light division / shielding unit 2 Project the transmitted light 1b. Projecting the transmitted light 1b in real time means that the shape drawing unit 30 outputs the drawing trajectory data 30d to the projection range setting unit 3 every time the divided region designated by the user is updated or every predetermined time. The state of the projection light division light blocking unit 2 is updated by the projection range setting unit 3. As a result, the drawing trajectory of the divided area input by the user is immediately reflected in the transmitted light 1b. The user can draw the trajectory of the divided region while confirming the transmitted light 1b projected on the irradiated object 10.

  In the case of a pen tablet system, the shape drawing unit 30 generates trajectory information of writing pressure applied to the liquid crystal panel 30b by the pen 30c. The writing pressure trajectory information is converted into drawing trajectory data 30d representing the contour of the light projection area 1B (trimming region) by the light projection unit 1. The drawing trajectory data 30d is supplied as projection range data 3a from the projection range setting unit 3 to the projection light division / shielding unit 2. Thereby, the projection light division | segmentation light-shielding part 2 can change the light projection area 1B and the non-light projection area 1C by changing the projection range and non-projection range of the light shield part 2a based on the projection range data 3a.

  Further, in this light projection device, when the user designates the light projection area 1B by the shape drawing unit 30, a groping point may be displayed on the liquid crystal panel 30b in response to the operation of the shape drawing unit 30. Further, the light projection unit 1 may transmit the transmitted light 1 b corresponding to the groping point by the projection light division light blocking unit 2. For example, when it is desired to accurately specify the upper left end portion of the irradiated object 10, when the user touches the liquid crystal panel 30b of the shape drawing unit 30, the position in the projectable area 1A corresponding to the arbitrary point is illuminated. A part of the projection light division light blocking unit 2 is set to a light transmission state 2a-2. Thereby, the light projection device can perform an operation of designating the light projection area 1B more easily.

  As described above, according to the light projection apparatus shown as the third embodiment, the drawing trajectory data 30d is generated in real time according to the user's operation, and the state of the projection light division light blocking unit 2 can be updated. it can. The light projection device converts the drawing trajectory by the user operation into the projection range of the light shielding unit 2a and projects it as the light projection area 1B, so that the user can check the actual irradiation state of the irradiated object 10 while confirming the irradiation state. The projection area 1B can be set.

  The shape drawing unit 30 outputs the drawing trajectory data 30d while the user is drawing the trajectory of the divided region, and outputs the shape data 30a when the closed region is set by the drawing trajectory. Also good. Thereby, when the closed area is not set by the drawing locus, the drawing locus is projected by the diagram, and when the closed area is set by the drawing locus, the entire closed area is projected to the light projection area 1B. Can be set.

[Fourth Embodiment]
Next, an optical projection apparatus according to the fourth embodiment will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 9, the light projection device shown as the fourth embodiment adjusts at least one of the projection range, the position of the non-projection range, and the shape of the projection light division light blocking unit 2 set by the projection range setting unit 3. A projection range adjustment unit 48 is further provided.

  The projection range adjustment unit 48 receives the projection range data 3 a from the projection range setting unit 3. The projection range adjustment unit 48 sets the projection range adjustment data 48a obtained by adjusting the projection range and the position and shape of the non-projection range of the projection light division light shielding unit 2 set by the input projection range data 3a to the projection light division light shielding unit 2. Supply. When the projection range adjustment data 48a is supplied, the projection light division light shielding unit 2 changes the light light shielding unit 2a to the light transmission state 2a-2 according to the adjusted result. Thereby, the light projection apparatus can adjust at least one of the position and the shape of the light projection area 1B set by the projection range data 3a.

  In addition, the projection range adjustment unit 48 is configured to project the projection range of the projection light division light shielding unit 2 set in the projection range data 3a based on the shape data 30a generated by the shape drawing unit 30 according to the user's operation. The position or shape of the range may be adjusted. In addition, the projection range adjustment unit 48 may adjust the light shielding unit 2a in a range that is automatically set regardless of the user's operation.

  The configuration for automatically adjusting the light shielding unit 2a and setting the light projection area 1B includes an imaging unit 41, a captured image generation unit 42, a captured image storage unit 43, a captured image division unit 44, a projection range extraction setting unit 45, A projection range sorting unit 46 and a projection range correction unit 47 are provided.

  As shown in FIG. 10, the optical projection apparatus includes a video camera as an imaging unit 41. The imaging unit 41 is installed so that the imaging range includes the projectable area 1 </ b> A of the light projection unit 1. The imaging unit 41 includes an imaging device such as an optical system and a CCD. The imaging unit 41 supplies the captured image signal captured by the imaging element to the captured image generation unit 42.

  The captured image generation unit 42 includes an I / O interface for the imaging unit 41. The captured image generation unit 42 converts the captured image signal output from the imaging unit 41 into a processable data format, generates captured image data 42 a, and supplies the captured image data 42 a to the captured image storage unit 43.

  The captured image storage unit 43 is composed of, for example, a hard disk device. The captured image storage unit 43 stores the captured image data 42 a generated by the captured image generation unit 42. The captured image data 42a stored in the captured image storage unit 43 may be output to a display (not shown) so that the imaging state of the imaging unit 41 can be viewed. The captured image data 43 a stored in the captured image storage unit 43 is read by the projection range sorting unit 46 and the captured image dividing unit 44.

  The captured image dividing unit 44 divides the captured image data 43 a stored in the captured image storage unit 43. The captured image dividing unit 44 divides the captured image data 43a in accordance with the divided areas of the projection light dividing / shielding unit 2. Each of the divided captured image data 44 a is supplied to the projection range correction unit 47.

  The projection range extraction setting unit 45 sets conditions for extracting the light projection area 1B (projection range extraction setting means). The projection range extraction setting unit 45 analyzes the captured image data 43a stored in the captured image storage unit 43, and sets conditions for extracting the light projection area 1B on which the transmitted light 1b is projected. The projection range extraction setting unit 45, for example, an extraction method such as approximate color extraction for extracting the light projection area 1B by color, shape extraction for extracting the light projection area 1B by shape, or brightness extraction for extracting the light projection area 1B by brightness. The threshold value in the extraction method is set.

  The projection range extraction setting unit 45 includes, for example, a keyboard operated by the user and an input interface for recognizing the keyboard operation, a mechanism for reading a recording medium storing various parameters, a mechanism for receiving various parameters transmitted from the outside, and the like. Consists of. The extraction conditions of the light projection area 1B set by the projection range extraction setting unit 45 are supplied to the projection range sorting unit 46 as projection range extraction parameters.

  The projection range sorting unit 46 analyzes the captured image data 43a generated and stored by the captured image generation unit 42 in accordance with the conditions set by the projection range extraction setting unit 45, and the light projection area 1B and the light projection area 1B. The non-light projection area 1C other than the above is separated (sorting means).

  The projection range sorting unit 46 analyzes the captured image data 43a supplied from the captured image storage unit 43 in accordance with the projection range extraction parameters supplied from the projection range extraction setting unit 45. As a result of this analysis, the projection range classification unit 46 supplies projection range classification data 46a as coordinate information representing the light projection area 1B that matches the projection range extraction parameter to the projection range correction unit 47. The projection range classification unit 46 compares the projection range classification data 46a with the captured image division data 44a. Accordingly, the projection range classification unit 46 checks which captured image division data 44a corresponds to the coordinate information of the light projection area 1B indicated by the projection range classification data 46a. That is, it is checked which light shielding unit 2a corresponds to the coordinate information of the light projection area 1B. Accordingly, the light projection apparatus creates projection range correction data 47a for configuring the light projection area 1B that matches the extraction condition set by the projection range extraction setting unit 45 by the projection range correction unit 47. The projection range correction data 47a is identification information of each light shielding unit 2a corresponding to the light projection area 1B included in the projection light division shielding unit 2.

  When the projection range correction data 47a is supplied, the projection range setting unit 3 sets the light shielding unit 2a including the identification information in the projection range correction data 47a to the light transmission state 2a-2. Thereby, the projection range setting unit 3 can set only the light shielding unit 2a that projects the transmitted light 1b only to the region determined as the light projection area 1B by the projection range sorting unit 46 to the light transmission state 2a-2. . Specifically, as shown in FIG. 4, in order to set the light projection area 1B for the irradiated objects 10A and 10B, the captured image generation unit 42 includes captured image data 42a including the irradiated objects 10A and 10B. Is supplied to the captured image storage unit 43.

  On the other hand, when the captured image data 43a is input, the projection range sorting unit 46 analyzes the captured image data 43a according to the projection range extraction parameters set by the projection range extraction setting unit 45, and the light projection area 1B and the non-light The projection area 1C is separated.

  Here, the projection range extraction parameters for the light projection area 1B are “shape extraction process”, “a cubic region is the light projection area 1B, and a non-cube region is the non-light projection area 1C”. It shall be supplied.

  Under such circumstances, the projection range sorting unit 46 is supplied with the captured image data 43a including the cube-shaped irradiated object 10. Then, the projection range classification unit 46 recognizes the shape edge over the entire captured image data 43a by the edge extraction process, and sets the cubic area as the light projection area 1B and the non-cubic area as the non-light projection area 1C.

  Thus, the light projection apparatus identifies the light shielding unit 2a in the light transmission state 2a-2 so that the projection range correction unit 47 projects the transmitted light 1b toward the light projection area 1B according to the projection range classification data 46a. Projection range correction data 47a including information is created.

  Further, in the process of automatically creating data for identifying the light projection area 1B, a blue sheet for enhancing the extraction accuracy of the color extraction process may be arranged behind the irradiated objects 10A and 10B. In this case, the projection range extraction setting unit 45 uses the projection range extraction parameter in which the extraction conditions of the light projection area 1B are “color extraction processing”, “blue region is non-light projection area 1C, and non-blue region is light projection area 1B”. Is supplied to the projection range classification unit 46. As a result, the projection range classification unit 46 performs a color extraction process for classifying the captured image data 43a into a blue region and a region other than the blue region, and uses the contour information of the irradiated objects 10A and 10B as the projection range classification data 46a. Can be created.

  As described above, the projection range setting unit 3 generates the projection range data 3a based on the automatically obtained data representing the light projection area 1B and supplies the projection range data 3a to the projection range adjustment unit 48. The projection range adjustment unit 48 can adjust the range of the light projection area 1B, for example. Specifically, the projection range adjustment unit 48 changes the shape of the light projection area 1B set by the projection range setting unit 3 such as horizontal movement, rotational movement, deformation, and scale conversion, and adds a specific range. Processes such as range deletion.

  As described above, according to the light projection apparatus shown as the fourth embodiment, the projection range data 3a representing the light shielding unit 2a corresponding to the light projection area 1B set by the user's operation or automatically is projected. It can be adjusted by the range adjustment unit 48. Thereby, according to the light projection device, the light projection area 1B can be easily corrected.

[Fifth Embodiment]
Next, an optical projection apparatus according to a fifth embodiment will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In addition to the light projection apparatus in the above-described embodiment, the light projection apparatus shown as the fifth embodiment further includes a drive unit 51 that vibrates the projection light division light shielding unit 2 as shown in FIG.

  As shown in FIG. 12, the light projection apparatus that does not include the drive unit 51 clearly reflects the transmitted light 1b on the transmitted light 1b by the rotation support mechanism 2b even if all the light shielding units 2a are in the light transmission state 2a-2. 1c is included. The light projection apparatus shown as the fifth embodiment includes the drive unit 51, thereby making the shadow 1c inconspicuous.

  This light projection device applies minute vibrations to the projection light division light shielding unit 2 to the projection light division light shielding unit 2. The vibration width of the projection light division light shielding unit 2 by the drive unit 51 is set within a range not exceeding the width of the rotation support mechanism 2b and the gap between the light light shielding units 2a. Thus, by vibrating the projection light division light shielding unit 2, the gap between the rotation support mechanism 2b and the light light shielding unit 2a also vibrates. Thereby, the shadow 1c included in the transmitted light 1b can also be vibrated, and the shadow 1c can be blurred as shown in FIG.

  Further, when the transmitted light 1b trimmed to the shape of the irradiated object 10 is irradiated by minutely vibrating the projection light dividing light blocking unit 2, the leakage light generated on the back surface of the irradiated object 10 can be vibrated. it can. Thereby, even if leak light is projected on the wall which exists behind the to-be-irradiated body 10, the light projector can vibrate the leak light and make it inconspicuous.

[Sixth Embodiment]
Next, an optical projection apparatus according to the sixth embodiment will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 14, the light projection device shown as the sixth embodiment includes a plurality of light projection units 1, 1 ′ and projection light division light shielding units 2, 2 ′. In this light projection device, the irradiated object 10 is projected by the light projection units 1 and 1 ′.

  The projection light 1a projected from the light projection unit 1 is transmitted to the projection light division light shielding unit 2 and projected onto the irradiated object 10 as transmitted light 1b. Similarly, the projection light 1 a ′ projected from the light projection unit 1 ′ is transmitted through the projection light division light shielding unit 2 ′ and projected onto the irradiated object 10 as transmitted light 1 b ′.

  Such an optical projection apparatus is a technique called a so-called multi-projection system. By providing the plurality of light projection units 1, 1 ′, it is possible to project the plurality of transmitted lights 1 b, 1 b ′ on the irradiated object 10. As a result, the light projection apparatus can project the transmitted light 1b in a wider range onto the irradiated object 10 as compared with the case where the single light projection unit 1 projects the transmitted light 1b.

  In this optical projection apparatus, the projection range setting unit 3 ′ supplies the projection range data 3a, 3a ′ to the projection light division light shielding units 2, 2 ′ and the projection range to the projection light division light shielding unit 2 ′. Data 3a 'is supplied. Thereby, the projection range data 3a and 3a 'are generated for each of the light projection apparatus and the light projection units 1 and 1'.

  Further, the projection range setting unit 3 ′ needs to supply the projection range data 3 a and 3 a so as to synchronize the operations of the projection light division light shielding units 2 and 2 ′. Thereby, the light projection apparatus can project the transmitted lights 1b and 1b 'synchronized with the plurality of irradiated objects 10.

  Furthermore, the light projection apparatus is provided with a combination of the light projection unit 1 and the projection light division light shielding unit 2 and a combination of another light projection unit 1 ′ and the projection light division light shielding unit 2 ′ at an arbitrary position. Also good. Thereby, the light projection apparatus can project the irradiated object 10 by setting the projection range data 3a and 3a 'viewed from the respective light projection units 1 and 1'. Thereby, the light projection apparatus can project a plurality of transmitted lights 1b and 1b 'that cover the irradiated object 10.

[Seventh Embodiment]
Next, an optical projection apparatus according to a seventh embodiment will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The light projection device shown as the seventh embodiment can change the transmitted light 1b or the music data along the time axis in addition to the light projection devices shown as the first to sixth embodiments described above. . This light projection device can exhibit various effects by updating the transmitted light 1b or music data set along the time axis.

  As shown in FIG. 15, the light projection apparatus further includes a timeline setting unit 61 and a data storage unit 62. The data storage unit 62 stores the projection range data set by the projection range setting unit 3. The projection range data 62a is supplied to the projection range setting unit 3, and the projection range setting unit 3 supplies the projection range data 62a as the projection range data 3a to the projection light division light blocking unit 2.

  The timeline setting unit 61 automatically updates any projection range data 62a set by the user among the projection range data 62a stored in the data storage unit 62 with an arbitrary time schedule.

  The data storage unit 62 sets the update order (time schedule) of the projection range data 62a stored in the data storage unit 62 on the time axis (timeline setting means). Projection range data 62a is arranged along the time axis set by the timeline setting unit 61. The data storage unit 62 outputs the projection range data 62a to the projection range setting unit 3 in accordance with the output timing set on the time axis.

  The projection range setting unit 3 reads the projection range data 62a set on the time axis set by the timeline setting unit 61 from the data storage unit 62, and sets it as the light shielding unit 2a and the non-projection range as the projection range. The light projection area 1B and the non-light projection area 1C are updated by updating the light shielding unit 2a. That is, the projection range data 3a is supplied from the projection range setting unit 3 to the projection light division light shielding unit 2 along the time axis. As a result, the projection light splitting light-shielding part 2 is moved between the light shielding state 2a-1 and the light-transmitting state 2a-2 by the rotation support mechanism 2b in accordance with the projection range data 3a on the time axis. Switch operation with. Thereby, the projection light division | segmentation light-shielding part 2 can update the transmitted light 1b projected toward the to-be-irradiated body 10 along a time axis | shaft on a projection range.

  In addition to the configuration of FIG. 15, the light projection device shown as the seventh embodiment may store arbitrary music data in the data storage unit 62. This music data is preferably sound corresponding to the dynamic display state of the transmitted light 1b projected by the light projection unit 1 according to the update order of the projection range data 3a.

  The timeline setting unit 61 sets the update order of music data on the time axis. As described above, the time axis is the same as the time axis of the projection range data 3a. The light projection device also includes a sound generation unit 63 such as a speaker. According to this optical projection apparatus, a time schedule is set by the timeline setting unit 61, and audio data is set on the same time axis as the time schedule using an audio file (not shown) according to a user operation. be able to.

  The sound generation unit 63 may be separate from the light projection unit 1 and the control device 20, or may be configured to emit sound from a speaker using a function as a personal computer. The sound generation unit 63 reads the music data set on the time axis set by the timeline setting unit 61 from the data storage unit 62. The voice generation unit 63 updates music on the time axis. Thereby, the optical projection apparatus arranges music on the time axis in addition to the projection range data 62a, and can update the transmitted light 1b and music in synchronization.

  As described above, according to the light projection device, the transmitted light 1b is projected onto the irradiated object 10, and in addition to the visual effect, the music BGM is synchronized with the time schedule of the visual effect. It can be set and an auditory performance can be realized. As a result, the light projection apparatus can create a content having a concept such as promotion of the irradiated object 10 as a product, product description, and ornamental display, and can produce a space effect.

  In addition, the timeline setting unit 61 is not limited to a time schedule according to a user operation, and may be a time schedule for updating the projection range data 62a at random. As a result, it is possible to express an effect with an update that does not reflect the user's will.

  Furthermore, as shown in FIG. 16, the optical projection apparatus shown as the seventh embodiment includes a communication unit 64 that communicates with a server 65 that stores projection range data 62a or music data. In this optical projection device, the communication unit 64 downloads the projection range data 3a or music data specified by the user or via the communication line. Then, the timeline setting unit 61 sets the projection range data 3a or music data received from the server 65 on the time axis.

  The server 65 may store projection range data 3a set on the time axis or file data of music data. As a result, the communication unit 64 can store, in the data storage unit 62, a file in which the transmitted light 1b on the time axis or the music time schedule is already set from the server 65.

  As described above, according to the optical projection apparatus, the projection range data 3a and music data desired by the user can be downloaded. In addition, the latest information and the like can be automatically downloaded from the server 65 to the light projection apparatus. Therefore, the light projection apparatus can select or automatically receive any one of the projection range data 3a, and does not need to store enormous data. In the light projection apparatus, when the data in the data storage unit 62 is to be updated, the communication unit 64 can download the projection range data 3a and music data from the server 65, and can update the data by remote operation.

[Eighth Embodiment]
Next, an optical projection apparatus according to an eighth embodiment will be described. Note that parts similar to those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 17, the light projection device shown as the eighth embodiment replaces the captured image division unit 44 and the projection range correction unit 47 of the light projection device shown as the fourth embodiment with a conversion table generation unit 71 and A projection range extraction unit 72 is provided. This light projection device is different from the light projection devices shown as the first to seventh embodiments except the above-described fourth embodiment in the imaging unit 41, the captured image generation unit 42, the captured image storage unit 43, and the projection range extraction. A setting unit 45, a projection range classification unit 46, a conversion table generation unit 71, and a projection range extraction unit 72 can be provided.

  The conversion table generation unit 71 is supplied with the captured image data 43 a generated by the captured image generation unit 42 and stored in the captured image storage unit 43. The conversion table generation unit 71 generates a conversion table 71a that describes the correspondence between the image position in the captured image data 43a and each divided area (light shielding unit 2a) in the projection light division shielding unit 2. Referring to the conversion table 71a, the light projection apparatus captures which light shading unit 2a in the projection light splitting shading unit 2 the image position of the captured image data 42a captured by the imaging unit 41 and generated by the captured image generating unit 42 is. If the light transmission state 2a-2 is set, it can be recognized whether the transmitted light 1b can be projected.

  The conversion table generation unit 71 performs the following operation when generating the conversion table 71a. This operation is performed when the irradiated object 10 is newly installed.

  The conversion table generation unit 71 sets each light shielding unit 2a of the projection light division shielding unit 2 to the light transmission state 2a-2, and sequentially projects each divided light divided only by the light shielding unit 2a. Specifically, as shown in FIG. 18, only a certain light-shielding part 2a is set to the light transmission state 2a-2, and the transmitted light 1b is transmitted only from the part 2c. Then, the transmitted light 1b is projected only on a portion of the projectable area 1A corresponding to the light shielding portion 2a in the light transmission state 2a-2.

  The imaging unit 41 captures an image of each light blocking unit 2a being in the light transmission state 2a-2 and projected through the transmitted divided light. Accordingly, the captured image generation unit 42 can generate the number of captured image data 42 a corresponding to the light shielding unit 2 a and store the generated captured image data 42 a in the captured image storage unit 43. For example, the captured image data 42a is an image that, when displayed on the display monitor 73, the irradiation area 73b appears only in the portion of the display screen 73a where the transmitted light 1b is projected.

  The conversion table generation unit 71 reads the captured image data 43a in which each light shielding unit 2a is in the light transmission state 2a-2. The captured image data 43a includes an irradiation area 73b corresponding to the light shielding unit 2a. The conversion table generation unit 71 registers the identification information of the light shielding unit 2a corresponding to each captured image data 43a and the image position of the irradiation area 73b in the captured image data 43a in association with each other in the conversion table 71a. The conversion table generation unit 71 completes the conversion table 71a by associating the identification information of the light shielding unit 2a with the image position of the irradiation region 73b in the captured image data 43a for the all-light shielding unit 2a.

  In addition, in the relationship between the projected irradiation region 73b and the captured image, the correspondence relationship between the pixel positions may be detected for each pixel, or may be detected by a lump or line of pixels in which a certain number of pixels are integrated. Further, the pixels may be interpolated after detecting the correspondence between the pixels at discrete positions.

  The projection range extraction unit 72 is supplied from the projection range classification unit 46 with projection range classification data 46a that classifies which region in the projectable area 1A is the light projection area 1B. Further, the projection range extraction unit 72 can read the conversion table 71 a generated by the conversion table generation unit 71. The projection range extraction unit 72 recognizes which light shading unit 2a in the projection light division shading unit 2 is the image position to be the light projection area 1B indicated by the projection range classification data 46a with reference to the conversion table 71a. To do. That is, the projection range extraction unit 72 converts the image position to be the light projection area 1B into the identification information of the light shielding unit 2a. The projection range extraction unit 72 generates projection range extraction data 72a indicating the light shielding unit 2a in the light transmission state 2a-2 in order to project the transmitted light 1b onto the light projection area 1B, and the projection range setting unit 3 To supply.

  Based on the projection range extraction data 72a supplied from the projection range extraction unit 72, the projection range setting unit 3 generates projection range data 3a indicating the light shielding unit 2a to be in the light transmission state 2a-2 (projection range). The projection range data 3a is supplied to the projection light division light shielding unit 2. Thereby, the projection light division | segmentation light-shielding part 2 operate | moves only the light transmission state 2a-2 made into the light transmission state 2a-2 by the projection range extraction data 72a to the light transmission state 2a-2.

  As described above, according to the light projection device shown as the eighth embodiment, in which position the transmitted light 1b is projected in a state where each light shielding unit 2a is in the light transmission state 2a-2. Even if it is unknown, the conversion table generation unit 71 can create the conversion table 71a. Thereby, the light projection apparatus can automatically acquire the correspondence between the projection position of the transmitted light 1b and the light shielding unit 2a.

  Thus, according to the light projection device, if the light projection area 1B is automatically extracted by the projection range sorting unit 46, which light shielding unit 2a is set to the light transmission state 2a-2 by the projection range extraction unit 72. Whether the transmitted light 1b can be projected only on the light projection area 1B can be extracted. Therefore, according to this light projection device, automatic extraction of the projection range corresponding to the irradiated object 10 can be realized.

  Further, according to the light projection device, by updating the automatic extraction process of the non-light projection range 1C for projecting the transmitted light 1b every predetermined time, it is possible to change with the passage of time such as movement and deformation of the irradiated object 10. Correspondingly, the projection range of the light shielding part 2a can be made to follow. That is, in the optical projection apparatus, in the configuration described above, the projection range sorting unit 46 detects a change with time including movement or deformation of the irradiated object 10, and the irradiation target detected by the projection range sorting unit 46 is detected. In response to the change of the body 10, the projection range extraction unit 72 changes the projection range of the light shielding unit 2 a, and the projection range setting unit 3 changes the projection range of the light shielding unit 2 a changed by the projection range extraction unit 72. Thus, the transmitted light 1b is projected. At this time, the light projection apparatus may control the projection range of the light shielding unit 2a according to the setting condition of the projection range extraction setting unit 45 so that the transmitted light 1b of the projection light division shielding unit 2 covers the irradiated object 10. it can.

[Other Embodiments]
Next, another configuration of the projection light division light blocking unit 2 will be described. In addition, this projection light division | segmentation light-shielding part 2 is applicable to all the embodiment mentioned above.

  For example, as shown in FIG. 19A, consider a case in which transmitted light 1b is projected onto a part of some characters “ABC panel” drawn on the flat panel 100. Further, it is assumed that a region including the characters “ABC panel” is a light projection area 1B, and the light projection area 1B is configured by combining eight divided regions a to h.

  In such a scene, as shown in FIG. 19B, the projection light division light blocking unit 2 is configured to include at least a film group of 2-a to 2-h. In the film groups 2-a to 2-h, transmission regions a to h having different positions are formed on the respective films. Further, the film group is a light shielding area except for the transmission areas a to h. The projection light division light blocking unit 2 is arranged in the emission direction of the projection light 1a of the light projection unit 1 by superimposing the film groups a to h. Thereby, the projection light division | segmentation light-shielding part 2 can permeate | transmit the transmitted light 1b only to division area | region ah shown to Fig.19 (a).

  Here, the film which comprises the projection light division | segmentation light-shielding part 2 is not restricted to 8 sheets, Furthermore, you may provide many more films in which another part is a transmissive area | region. Depending on the position of the transmissive region, the projection light division light shielding unit 2 can form light projection areas 1B having various shapes by selecting a film constituting the projection light division light shielding unit 2.

  As a result, the projection light dividing light blocking unit 2 is not limited to the configuration shown in FIG. 5, and even in such a configuration, the region desired by the user or automatically extracted is set as the light projection area 1 </ b> B. Thus, the transmitted light 1b can be projected.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

DESCRIPTION OF SYMBOLS 1 Light projection part 1A Projectable range 1B Light projection range 1C Non-light projection range 1a Projection light 1b Transmitted light 2 Projection light division | segmentation light shielding part 2-a to 2-h Film group 2a Light light shielding part 2a-1 Light shielding state 2a- 2 light transmission state 2b rotation support mechanism 3 projection range setting unit 10A, 10B irradiated object 20 control device 30 shape drawing unit 30b liquid crystal panel 30c pen 41 imaging unit 42 captured image generation unit 43 captured image storage unit 44 captured image division unit 45 Projection range extraction setting unit 46 Projection range sorting unit 47 Projection range correction unit 48 Projection range adjustment unit 51 Drive unit 61 Timeline setting unit 62 Data storage unit 63 Voice generation unit 64 Communication unit 65 Server 71 Conversion table generation unit 72 Projection range extraction Part 73 Display monitor 100 Flat panel

Claims (10)

An optical projection device that projects light onto an arbitrary space and an irradiation object installed in the space,
Light projection means for projecting light;
A plurality of divided areas for dividing the projection light projected from the light projection means, and a projection light division light shielding means for shielding or passing the projection light by each divided area;
An optical projection comprising: a projection range in which projection light is allowed to pass by the projection light division light shielding means; and a projection range setting means for setting a non-projection range in which projection light is shielded by the projection light division light shielding means. apparatus. An arbitrary shape is drawn according to the user's operation, and further includes shape drawing means for generating shape data based on the drawn shape,
The light projection apparatus according to claim 1, wherein the projection range setting unit sets a shape based on the shape data generated by the shape drawing unit as the projection range. The shape drawing unit generates drawing trajectory data according to a user operation, and outputs the drawing trajectory data to the projection range setting unit in real time.
The projection range setting means sets the projection range based on the output drawing trajectory data, and projects projection light in real time from the light projection means via the projection light division light shielding means. The light projection device according to claim 2.   The light according to any one of claims 1 to 3, further comprising a projection range adjusting unit that adjusts at least one of a position or a shape of the projection range set by the projection range setting unit. Projection device.   5. The light projection apparatus according to claim 1, further comprising a drive unit that vibrates the projection light division light blocking unit. 6. A plurality of the light projection means and the projection light division light shielding means;
The light projection apparatus according to claim 1, wherein each light projection unit projects an object to be irradiated. Data storage means for storing projection range data set by the projection range setting means;
A timeline setting means for setting the update order of the projection range data stored in the storage means on the time axis,
The projection range setting unit reads projection range data set on the time axis set by the timeline setting unit from the data storage unit, and updates the projection range and the non-projection range. The light projection device according to any one of claims 1 to 6. The data storage means stores arbitrary music data,
The timeline setting means sets the update order of the music data on the time axis,
The light projection according to claim 7, further comprising a sound generation unit that reads out music data set on the time axis set by the timeline setting unit from the data storage unit and updates the music. apparatus. A communication unit that communicates with a server that stores projection range data or music data set by the projection range setting unit;
9. The optical projection apparatus according to claim 7, wherein the timeline setting unit sets the projection range data or music data received from the server on a time axis. An imaging unit having a space including a projectable range of the light projection unit as an imaging range;
Captured image generation means for generating image data imaged by the imaging means;
A conversion table generating unit that generates a conversion table describing a correspondence relationship between an image position in the captured image generated by the captured image generating unit and each divided region in the projection light division shading unit;
Projection range extraction setting means for setting a condition for extracting a projection range onto which projection light is projected;
A projection range classification unit that analyzes the captured image data stored in the captured image storage unit according to the conditions set by the projection range extraction setting unit, and classifies the projection part and the non-projection part;
A projection range extracting unit that refers to the conversion table generated by the conversion table generating unit and converts the pixel position of the captured image data classified into the projection range by the projection range separating unit into the divided regions; ,
The light projection device according to any one of claims 1 to 9, wherein the projection range setting unit projects the projection light by the divided region converted by the projection range extraction unit.

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