JP2015118198A - Projection device and projection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projection device and projection method with which energy efficiency has been improved even when images are projected on a vertically long screen.SOLUTION: A projection device includes an image forming unit 100, a mirror unit 40, and a screen 50. The image forming unit 100 is formed to be capable of projecting images from a projection lens 135. The mirror unit 40 includes a first mirror 41 and a second mirror 42, and the mirrors are formed to be bent in a direction in which reflection surfaces face to each other. A projection image 133 projected from the image forming unit 100 is projected as a first projection image 131 and a second projection image 132, which are the same images, on the first mirror 41 and the second mirror 42, respectively. The mirror unit 40 projects the first projection image 131 and second projection image 132 overlapped with each other on the screen 50.

Description

  The present invention relates to a projection apparatus that projects an image on a screen or the like, and a projection method for an image or the like in the projection apparatus.

  2. Description of the Related Art Today, a projector as a projection device that projects a screen of a personal computer, a video image, an image based on image data stored in a memory card or the like onto a screen or the like is widely used. Recently, a projector as such a projection apparatus has been used as an apparatus for digital signage. When used for digital signage, the screen is not only a conventional horizontally long rectangular shape but also a vertically long screen having a human shape, for example. When using it for digital signage, it is necessary to project it according to a screen having a shape different from the conventional one such as portrait.

  For example, in the video output device mounting device disclosed in Patent Document 1, projection light from a projector is emitted to a reflection plate through a slit, and is projected onto a screen in the shape of a vertically long person from the reflection plate. The slits shield the projection light from the projector by forming a shielding plate in a range in the width direction on both sides of the slit so that the slit is formed as a vertically long slit in accordance with a vertically long human-shaped screen.

JP 2011-150221 A

  In the above-described prior art, since the projection light from the projector is shielded by the shielding plate, the shielded light is not used at all, and the energy of the light source light that consumes the most energy among the projectors is efficiently used. There was no problem.

  Therefore, it is an object of the present invention to provide a projection apparatus and a projection method that can efficiently use an effective projection range even when projecting onto a vertically long screen.

  The projection apparatus according to the present invention is formed by an image processing unit that duplicates one input image and forms processing image data in which a plurality of the same images of the same size are arranged on one screen, and the image processing unit. An image forming unit that forms a projection image based on the processed image data; and a mirror unit that includes a plurality of mirrors that are formed so as to reflect the projection image and can be projected onto a screen. , Projecting each image of the same image arranged on each of the plurality of mirrors, and the mirror unit reflects the same image projected on each of the plurality of mirrors to reflect the same image on the screen. The same image is formed so that it can be superimposed.

  The projection method according to the present invention is formed by an image processing step of duplicating one input image and forming processed image data in which a plurality of the same images of the same size are arranged on one screen, and the image processing step. An image forming step of forming a projection image based on the processed image data; and a reflection step of reflecting the projection image by a plurality of mirrors formed so as to be capable of being projected on a screen. Project each image of the same image arranged on each of the plurality of mirrors, and the reflecting step projects the same image projected on each of the plurality of mirrors onto the screen. Is reflected so that it can be superimposed.

  According to the present invention, it is possible to provide a projection device and a projection method for forming a bright projection image by reducing off-light and improving energy efficiency even when projecting onto a vertically long screen.

It is the external appearance perspective view which looked at the projector concerning an embodiment of the present invention from the upper part. It is explanatory drawing which shows a state when it projects with the projection apparatus which concerns on embodiment of this invention. It is a block diagram which shows the structure of the projection apparatus which concerns on embodiment of this invention. It is a schematic diagram for demonstrating the image processed with the projection apparatus which concerns on embodiment of this invention, Comprising: (a) shows the image produced previously, (b) is the image processed by the image process part. Indicates. It is a schematic diagram which shows the operation state of the projection apparatus which concerns on embodiment of this invention. It is a figure explaining the process image in the case of comprising a mirror part by the 3 or more some mirror which concerns on embodiment of this invention. It is a figure explaining the processed image in the case of a landscape image concerning an embodiment of the present invention. It is a figure explaining the processed image in the case of comprising a mirror part by the vertical 3 sheets mirror and horizontal 4 sheets mirror concerning embodiment of this invention. It is a block diagram which shows the structure of the projection apparatus which concerns on another embodiment of this invention.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an external perspective view of the projection apparatus 10 as viewed from above, and shows a state where the lid 30 is opened. In the following description, the mounting surface side of the projection device 10 is down, the opposite side to the mounting surface is up, the free end side when the lid 30 is opened and closed is the front, and the lid 30 is opened and closed. The fulcrum side is the back. The left and right sides of the projection device 10 are the left and right when the projection device 10 is viewed from the front.

  As shown in FIG. 1, the projection device 10 includes a main body 20 and a lid 30 as a casing, and is formed in a substantially rectangular shape as a whole. The lid 30 is provided on the upper surface of the projection device 10 so as to be freely opened and closed. A mirror part 40 is provided on the inner side surface of the lid part 30. The mirror unit 40 includes a first mirror 41 and a second mirror 42 arranged side by side in the left-right direction. Therefore, the mirror part 40 is comprised by the 1st mirror 41 and the 2nd mirror 42 which are two mirrors. In the present embodiment, the first mirror 41 and the second mirror 42 are vertically long rectangles, and both are formed in the same size. The first mirror 41 is provided on the left side, the second mirror 42 is provided on the right side, and the long side portions adjacent to each other are connected.

  The first mirror 41 and the second mirror 42 are flat mirrors each having a flat reflecting surface. The first mirror 41 and the second mirror 42 are formed so as to be refractable with the adjacent long side portions as fulcrums. The mirror angle adjusting unit adjusts the angle of the reflecting surface of each mirror when the first mirror 41 is refracted in the right direction and the second mirror 42 is refracted in the left direction so that the reflecting surfaces face each other. 45 (mirror angle adjusting means) is provided.

  Specifically, for example, a ball joint protruding rearward is provided on the back surface of each mirror, and a receiving portion for holding the ball joint with a predetermined holding force is provided on the inner side surface of the lid portion 30. Then, if an actuator such as an air cylinder is connected to the adjacent first mirror 41 and the second mirror 42 and these actuators are activated, the reflecting surfaces of the first mirror 41 and the second mirror 42 face each other. Can be refracted. If the mirror angle adjustment unit 45 is configured in this way, the first mirror 41 and the second mirror 42 are manually angled in the direction in which the reflecting surfaces of the respective mirrors face each other, in other words, the angle of the reflecting surfaces of the respective mirrors. Can be adjusted.

  An image forming unit 100 is provided inside the projection apparatus 10. The image forming unit 100 is formed so as to be able to project a projection image, and is provided with a projection lens 135 serving as an emission port for emitting projection image light. The projection direction of the projection lens 135 is directed to the mirror unit 40. Therefore, the image projected by the image forming unit 100 is projected on the mirror unit 40.

  Here, when the reflecting surfaces of the first mirror 41 and the second mirror 42 of the mirror unit 40 are continuous flat surfaces, the projected image is formed as a horizontally long effective image region 200 as shown in FIG. That is, the range of the effective image region 200 is a projection range in which the image can be projected to the maximum by the projection device 10. Further, the screen 50 shown in FIG. 2 is provided within the range of the effective image area 200. In this embodiment, as an example, the screen 50 is formed as a vertically long person so that it can be used for digital signage.

  In addition, as shown in FIG. 1, the main body 20 includes an intake / exhaust hole 21 that performs intake and exhaust for cooling the inside of the main body 20, a pedestal 22 that can adjust the height direction of the main body 20, and not illustrated. However, an operation panel for setting and operating the image forming unit 100 and an input / output interface for connecting the image forming unit 100 to a personal computer or the like are appropriately provided.

Next, the functional configuration of the projection apparatus 10 will be described based on the functional block diagram of FIG.
The image forming unit 100 built in the projection apparatus 10 includes an image processing unit 110, a display element 120, a light source unit 125, and a projection unit 130. The image processing unit 110 is connected to a personal computer (PC) 300 that is an external device of the projection apparatus 10 via an input / output interface or the like, and receives image data. In addition, the image processing unit 110 is provided with an image correction unit that corrects trapezoidal distortion of image data of an image to be projected. The image processing unit 110 appropriately processes the input image to form image data.

The display element 120 emits projection image light to the projection unit 130 by the light source light from the light source unit 125 based on the processed image 113 that is image data formed by the image processing unit 110. The projection unit 130 is composed of a number of optical devices such as optical lenses, and is provided with a projection lens 135 (see FIG. 1). A projection image is projected onto the screen 50 by the projection lens 135. The mirror unit 40 reflects the projection image projected from the projection lens 135 of the projection unit 130 toward the screen 50. As shown in FIG. 2, the screen 50 has a human shape in this embodiment.
In the case of using digital signage, the user visually recognizes an image projected on the screen 50 from the opposite side of the projection device 10 with respect to the screen 50.

  The image processing unit 110 is configured by a central processing unit (CPU) or RAM / ROM electronic equipment. As the display element 120, various spatial light modulation elements such as a DMD (digital micromirror device) and a transmissive liquid crystal panel can be used. Moreover, as the light source part 125, LED (light emitting diode), LD (laser diode), an ultrahigh pressure mercury lamp, etc. can be utilized.

  Here, for example, when the DMD is adopted for the display element 120, the maximum area in the range in which the light source light from the light source unit 125 can be irradiated on the DMD becomes the effective image area 200 (see FIG. 2). .

  For other specific configurations, the configuration of a known projection device (projector or the like) can be used as appropriate. For example, when irradiating the display element 120 with the light source light of the light source unit 125, an apparatus (light source side optical system) including an optical device for guiding the light source light is interposed between the light source unit 125 and the display element 120. Can be used. Similarly, in the optical path from the display element 120 to the projection unit 130, an apparatus (projection side optical system) including an optical device for projection can be used.

Next, the operation of the projection apparatus 10 will be described with reference to FIGS. 3, 4A, 4B, and 5. FIG.
First, in a personal computer (PC) 300, image data that is an image to be projected is created in advance. In the present embodiment, as shown in FIG. 4A, a person image 310 having a shape similar to the screen 50, which is a human shape, is created. The image data of the person image 310 occupies a part of the effective image area 200.

  The image data of the person image 310 is input as an input image to the image processing unit 110 shown in FIG. When the image data of the person image 310 is input, the image processing unit 110 duplicates the person image 310 as the same image of the same size and arranges the same image one by one as shown in FIG. 4B. Two processed images 113 are formed on the screen.

  As shown in FIG. 4B, the processed image 113 is composed of a first processed image 111 and a second processed image 112 that are the same image as the person image 310 within the effective image area 200. . The first processed image 111 is arranged on the left side, and the second processed image 112 is arranged on the right side. In this way, as shown in FIG. 3, when image data of a person image 310 is input to the image processing unit 110, a processed image 113 that is image data is formed in the image processing unit 110. Then, the projection image 133 is projected from the display element 120 to the mirror unit 40 via the projection unit 130 corresponding to the processed image 113 that is image data formed by the image processing unit 110.

  Specifically, as shown in FIG. 5, a first projection image 131 corresponding to the first processed image 111 is projected onto the first mirror 41 of the mirror unit 40, and similarly, the second mirror 42 includes A second projection image 132 corresponding to the second processed image 112 is projected. In this way, the projection image 133 projected on the mirror unit 40 has the first projection image 131 and the second projection image obtained by the mirror unit 40 in which the angles of the reflection surfaces are adjusted in advance in directions in which the respective reflection surfaces face each other. 132 is projected so as to be superimposed on the screen 50.

  In addition, although the upper and lower sides of the processed image 113 and the upper and lower sides of the screen 50 are described as being coincident, the projected image formed by the display element 120 is formed as an image that is vertically and horizontally reversed.

  Further, the first processed image 111 and the second processed image 112 shown in FIG. 4B are obtained by an image correction unit provided in the image processing unit 110 as shown by the broken lines in FIGS. 4A and 4B. Keystone correction has been made. That is, as shown in FIG. 5, when the projected image 133 is projected from the mirror unit 40 onto the screen 50, the first projected image 131 and the second projected image 132 are exactly the same as the screen 50 that is a human shape. The trapezoidal distortion correction is performed by the image correction means so as to be superimposed.

  Specifically, as shown by the broken lines in FIGS. 4A and 4B, the first processed image 111 and the second processed image 112 have the reflecting surfaces of the first mirror 41 and the second mirror 42 facing each other. In accordance with the direction angle, the lateral keystone correction is performed. Similarly, vertical trapezoidal correction is also performed based on the installation situation in which the projection lens 135, the mirror unit 40, and the screen 50 are installed, that is, the vertical inclination of each device. Furthermore, as shown in FIG. 4B, when the first processed image 111 and the second processed image 112 that are the same image are arranged side by side, the first processed image 111 that is the same image on the left and right and A trapezoidal distortion correction that is symmetric about the center line of the processed image 113 is performed on the second processed image 112.

Here, an example in which trapezoidal distortion correction that is symmetric about the center line has been described, but the first processed image 111 depends on how the reflecting surfaces of the first mirror 41 and the second mirror 42 are inclined and the relative angle with the screen. If trapezoidal correction is applied to only one of the second processed image 112 and the second processed image 112, there may be a case where the image can be superimposed in perfect agreement.
In any case, it is preferable to perform different corrections (including a case where the correction is not performed and a case where the correction is not performed) on the first processed image 111 and the second processed image 112.

  As shown in FIG. 3, the display element 120 is controlled corresponding to the image data of the processed image 113 formed by the image processing unit 110. The processed image 113 formed by the image processing unit 110 has been subjected to trapezoidal distortion correction by an image correction unit. When the display element 120 is controlled corresponding to the image data of the processed image 113 that has been subjected to the trapezoidal distortion correction, the display element 120 is irradiated with the light source light of the light source unit 125, and the projection image 133 is displayed on the projection unit 130. Emitted. Then, the projection light of the projection image 133 is projected from the projection lens 135 of the projection unit 130 toward the mirror unit 40.

  As a result, as shown in FIG. 5, the first projection image 131 is projected onto the first mirror 41 of the mirror unit 40, and the second projection image 132 is projected onto the second mirror 42. If the angle at which the reflective surfaces of the first mirror 41 and the second mirror 42 face each other is adjusted in advance by the mirror angle adjustment unit 45, the reflected light of the first projection image 131 and the second projection image 132 projected on each of them will be It will be superimposed on the screen 50.

  Here, the “same image” refers to a person image 310, a first processed image 111, a second processed image 112, a first projected image 131, a second projected image 132, and an image projected on the screen 50, which are created in advance. In some cases, the image is not completely the same because it is corrected by the image correction means as necessary, but the content of the image is the same in terms of the same image by duplication.

  As mentioned above, although embodiment of this invention was described, the embodiment which concerns can be suitably changed within the scope of the present invention. For example, in the present embodiment, the display element 120 and the light source unit 125 that irradiates the display element 120 are configured as separate bodies. However, instead of the display element 120 and the light source unit 125, the element itself emits light. A type of display device can also be used. For example, organic electroluminescence or a laser scan beam type using laser light as a light source may be used.

  In the present embodiment, the person image 310 is created in advance by the personal computer (PC) 300. However, it is also possible to configure the person image 310 to be input to the image processing unit 110 from a memory card or the like. Furthermore, an image creation unit may be provided in the image processing unit 110, and an image in an arbitrary predetermined range may be extracted from the input image to create the person image 310.

  Further, the image processing unit 110 may be provided in an external personal computer or the like, and the creation of the person image 310 that is an image to be projected to the formation of the processed image 113 may be performed by an external device such as a personal computer.

  In the present embodiment, the mirror unit 40 is configured by the first mirror 41 and the second mirror 42 as two mirrors. However, the mirror unit 40 may be configured by a plurality of three or more mirrors. Specifically, for example, as shown in FIG. 6, when the processed image 113 in which three vertically identical images are arranged horizontally is formed, the mirror unit 40 has the long sides of three vertically-long rectangular mirrors. Are arranged side by side in a row. In this case, if the mirror unit 40 is configured so that the mirror at the center portion is fixed and the mirrors on both sides are configured as mirrors whose reflection surfaces can be adjusted, the images reflected by the respective mirrors are projected so as to be superimposed. can do.

  Further, as shown in FIG. 7, when the processed image 113 in which two horizontally long identical images are arranged vertically is formed, the mirror unit 40 has two long rectangular mirrors adjacent to each other in the vertical direction. Configure to line up. Also in this case, if the angle of the reflecting surface of each mirror is configured to be adjustable, the image reflected by each mirror can be projected so as to be superimposed. Further, as shown in FIG. 8, when the processed image 113 is formed by duplicating the same image in three vertical and four horizontal directions, the mirror unit 40 corresponds to the three vertical and four horizontal images. A total of 12 mirrors are used. In this case as well, if some or all of these are configured as mirrors that can adjust the angle of the reflecting surfaces of the respective mirrors, the images reflected by the respective mirrors can be projected in a superimposed manner.

  In addition to the above, the mirror unit 40 may have different shapes and sizes for each of the mirrors configured according to the processed image 113. However, when the effective image area 200 is rectangular and the processed image data is arranged in one direction, it is preferable that the plurality of mirrors are also rectangular and have the same size and have long sides adjacent to each other. This is because image layout is easy.

  Further, as shown in FIG. 9, for example, the mirror unit 40 can be provided with a mirror rotating unit 47 (rotating means) that allows the mirror unit 40 to rotate in the same plane as the reflecting surface. That is, the mirror unit 40 is rotated 90 degrees to change the directions of the long side and the short side of the first mirror and the second mirror formed in a rectangular shape. For example, in the present embodiment, as shown in FIG. 1, the first mirror 41 and the second mirror 42 are arranged such that the long side is vertically oriented and the short side is horizontally oriented. The mirror unit 40 is rotated 90 degrees so that is on the lower side. With this configuration, it is possible to dynamically and appropriately cope with the same horizontally long image as shown in FIG. 7 according to whether the image is vertically long or horizontally long. A specific example of the mirror rotating unit 47 is realized, for example, by configuring a support base plate that supports the mirror unit 40 to be rotatable.

  In the present embodiment, the image forming unit 100 is provided in the main body unit 20 of the projection apparatus 10 and the mirror unit 40 is provided on the inner side surface of the lid unit 30. The entire apparatus may be integrally formed. For example, a human-type screen can be erected at the front end of the main body 20 and can be stored in a storage provided in the main body 20 after use. Alternatively, all these configurations may be housed in a single housing.

  As a form in which the image forming unit 100, the mirror unit 40, and the screen 50 are housed in one casing, for example, a rear projection type projection device that projects from behind the screen 50 can be used. In this case, the screen 50 corresponding to the rear projection is provided, and the mirror unit 40 is installed behind the screen 50 so that the projection light from the mirror unit 40 is projected from the back surface of the screen 50. If the image forming unit 100 is installed on the screen 50 side and the projection lens 135 is laid out toward the mirror unit 40, the projection device 10 can be used as a rear projection.

  Further, the image forming unit 100, the mirror unit 40, and the screen 50 may be formed individually. For example, the screen 50 is installed as a separate body, and the mirror unit 40 formed separately is installed on the front side of the screen. Then, the image forming unit 100 is installed on the upper end of the screen 50, suspended from the ceiling in the case of indoors, or on the lower end of the screen 50 or on the lower floor of the screen 50, and projected by the image forming unit 100. The lens 135 may be configured to face the mirror unit 40. Thus, if the image forming unit 100, the mirror unit 40, and the screen 50 are formed separately, the layout can be freely changed according to the installation environment.

  Further, in the present embodiment, the mirror angle adjusting unit 45 is manually operated as means for adjusting the angle of the reflecting surface where the reflecting surfaces of the first mirror 41 and the second mirror 42 of the mirror unit 40 face each other. As an alternative, a control means for controlling the mirror angle adjusting unit 45 is separately provided so that the mirror angle is automatically adjusted based on a preset value or an image projected on the screen 50 is detected. Then, the mirror angle can be automatically adjusted. Further, as another embodiment, the angle of the reflecting surface in the direction in which the reflecting surfaces of the first mirror 41 and the second mirror 42 of the mirror unit 40 face each other without providing the mirror angle adjusting unit 45 as in the present embodiment. It can also be used fixedly.

  As described above, the projection apparatus 10 according to the present embodiment is provided with the image processing unit 110 that duplicates one input image and forms processed image data in which a plurality of identical images having the same size are arranged on one screen. The image forming unit 100 forms a projection image 133 based on the processed image data formed by the image processing unit 110, and a plurality of mirrors formed so that the projection image 133 can be projected on the screen 50 by reflecting the projection image 133. A mirror unit 40 having a first mirror 41 and a second mirror 42 is provided. The image forming unit 100 projects the first projection image 131 and the second projection image 132 that are the same images on the first mirror 41 and the second mirror 42, respectively. The mirror unit 40 includes the first mirror 41 and the second mirror. The first projection image 131 and the second projection image 132 projected onto 42 are reflected so as to be superimposed on the screen 50.

  Here, the light source light of the light source unit 125 irradiates the range of the effective image region 200 to the display element 120. Therefore, for example, when a person image 310 shown in FIG. 4A is projected without image processing in the image processing unit 110 described above, an area other than the person image 310 in the effective image area 200 is displayed on the display element 120. Then, the light is turned off, the light source light is not used, and the light source energy is wasted. However, in the present embodiment, the same image as the person image 310 is developed (duplicated) and projected at two (or more) within the range of the effective image area 200, so that the person can be processed without image processing. Compared with the case where the image 310 is projected on one place, the area that is turned off is reduced, so that the energy efficiency of the light source light of the light source unit 125 is improved.

  Further, the mirror unit 40 includes two mirrors, a first mirror 41 and a second mirror 42, and the same image is projected onto each mirror, and the same image is projected on the screen 50 in a superimposed manner. Therefore, the projection light 133 projected on the screen 50 is a single projection of the same image as the person image 310 because the two projection lights of the first mirror 41 and the second mirror 42 are superimposed. Compared to the above, the luminance is about twice. Therefore, when used for digital signage, a projected image can be clearly displayed even in a bright room such as a store.

  In addition, the mirror unit 40 is provided with a mirror angle adjusting unit 45 that adjusts the angles of the reflecting surfaces of the first mirror 41 and the second mirror 42 which are a plurality of mirrors. Thereby, the image projected on the screen 50 can be accurately aligned.

  The mirror unit 40 is composed of three or more mirrors, and the image processing unit 110 is processed image data in which three or more identical images are arranged on one screen according to the number of three or more mirrors. Form. As a result, images from three or more mirrors are superimposed and projected on the screen 50, so that it can be projected with a brightness of about three times or more.

  The first mirror 41 and the second mirror 42 of the mirror unit 40 are each formed in a rectangular shape, and a mirror rotating unit 47 that changes the direction of the long side and the short side can be provided. Accordingly, even if the first projection image 131 and the second projection image 132 projected on the first mirror 41 and the second mirror 42 are vertically long or horizontally long, they can be changed flexibly. Can respond. Even when the image input to the image processing unit 110 is a horizontally long rectangle and occupies the entire range of the effective image area 200, the first mirror 41 and the second mirror 42 each have By projecting the same image as the input image, it can be projected on the screen 50 in a superimposed manner. Also in this case, the brightness of the image projected on the screen 50 is approximately doubled, and the effect of improving the brightness can be obtained. The light source light of the light source unit 125 does not waste energy because there is no off-light region.

  Moreover, when the mirror part 40 is comprised with the mirror arranged in one direction, a long side can be arrange | positioned adjacently. As a result, the present invention can be suitably implemented for image data formed long in one direction.

  The mirror unit 40 can arrange a plurality of mirrors in the vertical direction and the horizontal direction. Accordingly, it is possible to project appropriately brightly in consideration of the balance between the display area of the effective image area 200 and the resolution required for projection.

  In addition, the image processing unit 110 is formed so as to have an image correction unit that corrects trapezoidal distortion of at least one of the first processed image 111 and the second processed image that are the same images of the processed image 113. Further, when the image processing unit 110 sets two processed images 113 in which the first processed image 111 and the second processed image, which are the same image, are arranged, the image correcting unit performs the same image with respect to the center line of the processed image. Symmetric trapezoidal distortion correction was performed.

  As a result, the processed image 113 in which the vertical and horizontal trapezoidal distortion correction is performed on the image according to the angle at which the reflecting surfaces of the first mirror 41 and the second mirror 42 of the mirror unit 40 face each other and the installation state of the image forming unit 100 and the screen 50 is obtained. As a result, the first projection image 131 and the second projection image 132 projected onto the first mirror 41 and the second mirror 42 are projected exactly on the screen 50. Therefore, clearer projection can be performed.

  Further, the image forming unit 100 corresponds to the output of the processed image 113 (the first processed image 111 and the second processed image 112) formed by the image processing unit 110, and the projected image 133 (the first projected image 131 and the second projected image). A display element (spatial light modulation element) 120 that emits projection light of the image 132) is provided. Thereby, since DMD and a transmissive liquid crystal display element can be utilized, clearer and brighter projection light can be obtained.

  In addition, the projection device 10 according to the present embodiment includes the image forming unit 100 and the mirror unit 40 integrated in a housing. Alternatively, the image forming unit 100, the mirror unit 40, and the screen 50 can be integrated into a casing. In this way, a projector with higher convenience can be provided by appropriately integrating the components.

  Further, the embodiment described above is presented as an example, and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

The invention described in the first claim of the present application will be appended below.
[1] An image processing unit that duplicates one input image and forms data of a processed image in which a plurality of the same images of the same size are arranged on one screen, and data of the processed image formed by the image processing unit An image forming unit that forms a projection image based on the mirror, and a mirror unit that includes a plurality of mirrors that are formed so as to be able to project the projection image on a screen by reflecting the projection image, the image forming unit including the plurality of mirrors Each of the same images arranged in a plurality is projected onto each of the mirrors, and the mirror unit can reflect the same images projected on the plurality of mirrors and superimpose the same images on the screen A projection device characterized in that the projection device is formed.
[2] The projection apparatus according to [1], wherein the mirror unit includes a mirror angle adjusting unit that adjusts angles of reflection surfaces of the plurality of mirrors.
[3] The mirror unit is composed of three or more mirrors, and the image processing unit is a processed image in which three or more of the same images are arranged on one screen according to the number of the three or more mirrors. The projection apparatus according to [1] or [2], wherein the data is formed.
[4] The projection device according to any one of [1] to [3], further including a rotating unit that changes a direction of a long side and a short side of the mirror unit.
[5] The projection device according to any one of [1] to [4], wherein when the mirror unit is configured by mirrors arranged in one direction, long sides are arranged adjacent to each other. .
[6] The projection apparatus according to any one of [1] to [5], wherein the mirror section includes a plurality of the plurality of mirrors arranged in a vertical direction and a horizontal direction.
[7] The projection apparatus according to any one of [1] to [6], wherein the image processing unit includes image correction means for correcting at least one trapezoidal distortion of the same image of the processed image. .
[8] When the image processing unit sets the same image as the two processed images, the image correction unit performs trapezoidal distortion correction symmetric with respect to the center line of the processed image for the same image. The projection apparatus according to [7] above, wherein
[9] The [1] to [8], wherein the image forming unit includes a spatial light modulation element that emits projection image light corresponding to an output of the image processing unit. Projection device.
[10] The projection device according to any one of [1] to [9], wherein the image forming unit and the mirror unit are integrally housed in a housing.
[11] The projection device according to any one of [1] to [10], wherein the image forming unit, the mirror unit, and the screen are integrally stored in a casing.
[12] An image processing step of duplicating one input image and forming processed image data in which a plurality of identical images of the same size are arranged on one screen, and data of the processed image formed in the image processing step An image forming step for forming a projection image based on the image, and a reflection step for reflecting the projection image by a plurality of mirrors formed so as to be projectable on a screen. A plurality of images of the same image arranged on each of the mirrors are projected, and the reflection step forms the same image projected on each of the plurality of mirrors so that the same image can be superimposed on the screen. The projection method characterized by reflecting as described above.

DESCRIPTION OF SYMBOLS 10 Projector 20 Main body part 21 Intake / exhaust hole 22 Base 30 Cover part 40 Mirror part 41 1st mirror 42 2nd mirror 45 Mirror angle adjustment part 47 Mirror rotation part 50 Screen 100 Image formation part 110 Image processing part 111 1st process image 112 Second processed image 113 Processed image 120 Display element 125 Light source unit 130 Projecting unit 131 First projected image 132 Second projected image 133 Projected image 135 Projecting lens 200 Effective image area 300 Personal computer (PC)
310 person image

Claims (12)

An image processing unit that duplicates one input image and forms processed image data in which a plurality of identical images of the same size are arranged on one screen;
An image forming unit that forms a projection image based on data of the processed image formed by the image processing unit;
A mirror unit having a plurality of mirrors formed so as to reflect the projected image and be projected onto a screen;
With
The image forming unit projects each image of the same image arranged on each of the plurality of mirrors;
The projection device, wherein the mirror unit is formed so that the same image projected on each of the plurality of mirrors is reflected so that the same image can be superimposed on the screen.   The projection apparatus according to claim 1, wherein the mirror unit includes a mirror angle adjusting unit that adjusts angles of reflection surfaces of the plurality of mirrors. The mirror part is composed of three or more mirrors,
The said image processing part forms the data of the processed image which arranged the said same image 3 or more on one screen according to the number of the said 3 or more mirrors, The Claim 1 or Claim 2 characterized by the above-mentioned. Projection device.   The projection apparatus according to claim 1, further comprising a rotating unit that changes a direction of a long side and a short side of the mirror unit.   5. The projection device according to claim 1, wherein when the mirror unit is configured by mirrors arranged in one direction, the long side is disposed adjacent to the mirror unit.   The projection apparatus according to claim 1, wherein the mirror unit includes a plurality of the plurality of mirrors arranged in a vertical direction and a horizontal direction.   The projection apparatus according to claim 1, wherein the image processing unit includes an image correction unit that corrects at least one trapezoidal distortion of the same image of the processed image.   When the image processing unit uses the same image as the two processed images, the image correction unit performs a trapezoidal distortion correction symmetric with respect to the center line of the processed image for the same image. The projection apparatus according to claim 7.   9. The projection apparatus according to claim 1, wherein the image forming unit includes a spatial light modulation element that emits projection image light corresponding to an output of the image processing unit.   The projection apparatus according to claim 1, wherein the image forming unit and the mirror unit are integrally housed in a housing.   The projection apparatus according to claim 1, wherein the image forming unit, the mirror unit, and the screen are integrally stored in a casing. An image processing step of duplicating one input image and forming processed image data in which a plurality of identical images of the same size are arranged on one screen;
An image forming step of forming a projection image based on the data of the processed image formed in the image processing step;
A reflecting step of reflecting the projected image by a plurality of mirrors formed so as to be projected on a screen;
Including
The image forming step projects each image of the same image arranged in a plurality on each of the plurality of mirrors,
In the reflecting step, the same image projected on each of the plurality of mirrors is reflected so that the same image can be superimposed on the screen.

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