JPH10339814A - Image composition display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image compositing device capable of displaying an observer image aligned with the line of sight of the observer and composting the observer image excellent in the reproducibility of the color of a display image and other images. SOLUTION: This device is provided with a transparent hologram screen 15 where a diffusing plate is recorded, an image pickup means 25 picking up the image of the observer 81 through the screen 15, an image information synthesizing means 28 compositing other image information and the observer image, and a projection means 11 projecting the signal light 31 of the composited image to the screen 15. In is possible to arrange a display device at the back of the observer instead of the image information synthesizing means. The screen is also obtained by combining the screen 15 of a transmission type hologram with a mirror or a half mirror.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image synthesizing and displaying apparatus for integrally displaying an image of a viewer and another predetermined image.

[0002]

2. Description of the Related Art There is a device that captures a human face or body with a camera or the like, combines the captured image with another image, and allows the person or a third party to visually recognize the combined image. For example, if an image of a hairstyle or clothes is combined with a human face and displayed, it is possible to know in advance the image of oneself whose hairstyle or clothes have been changed, and this can be used as a guideline for a correct choice of a customer. Along with that, it will be useful for sales promotion.

In such an image synthesizing apparatus 90, as shown in FIG. 10, for example, a camera 92 for photographing is mounted above a display screen 91 to photograph a viewer 81. Then, the photographed observer image 891 is combined with the desired hairstyle image 892 stored in an image information source (not shown), and the combined image 89 is displayed on the screen 91. However, the image synthesizing device 9
0 indicates that there is a difference between the direction of the line of sight 819 of the viewer 81 and the direction of the light ray 921 photographed by the camera 92, so that the line of sight of the viewer image 891 displayed on the screen does not match the line of sight 819 of the viewer 81. , There is a problem that the occurrence of subtle discomfort is inevitable.

Therefore, the viewer image 891 projected on the screen
In order to match the line of sight of the viewer 81 with the line of sight of the viewer 81, a hologram element 93 having good translucency is arranged immediately before the screen 91 as shown in FIG.
A new display device 9 has been proposed in which the light 82 traveling in the same direction as the light 9 is reflected (diffractive) by the hologram element 93 and the reflected (diffractive) light 821 is photographed (Japanese Patent Laid-Open No. 5-205).
328336). Thereby, the sense of incongruity due to the inconsistency of the line of sight can be eliminated.

That is, a reflection type hologram element 93 is provided on the front of the display screen 91, and the vicinity of the eyes of the viewer 81 and the screen 91 are controlled.
Light 82 traveling along a line connecting the vicinity of the center of the camera 9
2 so that the line of sight of the viewer 81 does not deviate from the line of sight of the display image 891 of the viewer.

In the same figure, reference numeral 83 denotes display light exiting the screen 91, reference numeral 831 denotes a component of the display light 83 transmitted through the hologram element 93 and reaches the viewer 81 (transmitted light), and reference numeral 832 denotes a hologram. Diffraction (reflection) by element 93
This is the component of the displayed display light 83. That is, the diffracted light 832
Are components which are excluded from the display light 83 and do not reach the eyes of the viewer 81.

[0007]

However, the improved image synthesizing apparatus 9 shown in FIG. 11 has the following problems. That is, since the hologram element 93 has a wavelength selection region, faithful color photographing cannot be performed and faithful color display cannot be performed. That is, the camera 9
The diffraction light 821 of the hologram element 83 photographed by the light source 2 has a nonuniform diffraction efficiency depending on the wavelength, and is therefore colored in a specific selected wavelength region, and the light 831 visually recognized by the viewer 81 is diffracted from the display light 83. The light 832 is the light that has been removed and is colored in the opposite direction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and can display a viewer image that matches the line of sight of the viewer who views the screen, and can improve the color reproducibility of the display image. An object of the present invention is to provide an excellent image synthesizing apparatus.

[0009]

According to a first aspect of the present invention, there is provided an image synthesizing display device for integrally displaying an image of a viewer and another image,
A transparent hologram screen on which a diffuser plate is recorded, imaging means for photographing a viewer image through the hologram screen, information recording means for recording image information, and image information synthesis for synthesizing other image information and the viewer image Means for projecting the signal light including the synthesized image information onto the hologram screen.

In the present invention, it should be particularly noted that
This is to take a viewer image from the back of the screen through a transparent hologram screen. Since the viewer is imaged through the transparent screen, the position of the imaging means can be freely set, and the degree of freedom with respect to the imaging position of the viewer is large. Therefore, as described in claim 3, a line connecting the central portion of the light entrance of the imaging means and the vicinity of the viewer's eye is a line connecting the center of the image on the hologram screen and the viewer's eye. By arranging the image pickup means so as to substantially coincide with the line connecting, it is possible to capture an observer image that coincides with the line of sight of the observer looking at the screen (see FIG. 1).

Then, another predetermined image information and the viewer image are synthesized by the image information synthesizing means, and the signal light including the synthesized image information is projected onto the hologram screen through the projection means. As a result, the display image viewed by the viewer has good color reproducibility, and the viewer image can be matched with the line of sight of the viewer viewing the screen.

It is preferable that the information recording means selectively records a plurality of pieces of image information, and enables a desired image and a viewer image to be freely combined. As described above, according to the present invention, it is possible to display an observer image that matches the line of sight of the observer viewing the screen, and to obtain an image synthesizing apparatus that is excellent in color reproducibility of the display image. .

It is to be noted that the hologram screen is provided in claim 4
As described above, it is preferable to use a transmission hologram. The diffraction wavelength characteristic of the transmission hologram has a wide selection wavelength band, so that the color tone of the diffraction image (display image) and the transmitted image (photographed image) is good (the diffraction characteristic of the transmission hologram shown in FIG. 12A). And an example of the diffraction characteristic of the reflection hologram shown in FIG. 12B). That is, the color tone of the viewer image photographed by the imaging means becomes good, and the color reproducibility of the display image formed and diffused on the screen becomes good.

Next, a second invention of the present application is an image synthesizing display device for integrally displaying an image of a viewer and another image,
A transparent hologram screen on which a diffusion plate is recorded, background display means installed behind the viewer to display an image serving as a background of the viewer, and the background image and the viewer image integrated through the hologram screen An image synthesizing display device comprising: a photographing means for performing a selective photographing; and a projecting means for projecting a signal light including image information photographed by the photographing means onto the hologram screen.

According to the present invention, instead of the information recording means and the image synthesizing device in the first invention, a background display means installed behind the viewer and capable of displaying an image serving as a background of the viewer is provided through a hologram screen. A photographing means for integrally photographing the background image and the viewer image is provided. That is, the image displayed by the background display means and the viewer image are superimposed, photographed by the photographing means, and a composite image is obtained as an output of the photographing means.

The rest is the same as the first invention,
Similar functions and effects can be obtained. In addition, it is preferable that the background display means can selectively display a desired image from a plurality of images, so that the combined image can freely combine the desired image and the viewer image.

It is preferable that the hologram screen uses a transmission hologram. The diffraction wavelength characteristic of the transmission hologram has a wide selection wavelength band, so that the color tone of the diffraction image (display image) and the transmitted image (photographed image) is good (the diffraction characteristic of the transmission hologram shown in FIG. 12A). And an example of the diffraction characteristic of the reflection hologram shown in FIG. 12B). That is, the color tone of the viewer image photographed by the imaging means becomes good, and the color reproducibility of the display image formed and diffused on the screen becomes good. The material of the transmission hologram constituting the hologram screen of the first invention and the second invention includes a photopolymer, DCG (gelatin dichromate) and the like.

Further, it is preferable that the image synthesizing and displaying apparatus is provided with a rear light blocking means for preventing external light from entering from behind the hologram screen. Thereby, the display image displayed on the screen is not disturbed by external light entering from behind the screen, and the contrast is not reduced.

It is preferable to provide a front light shielding means for preventing external light from entering from the front of the hologram screen. This gives
This is because a display image photographed through the screen is not disturbed by external light entering from behind and the contrast is not reduced.

A third invention of the present application is an image synthesizing display device for integrally displaying an image of a viewer and another predetermined image, wherein the display device emits a signal light including predetermined image information. A mirror arranged in front of the viewer, and a transmission hologram screen for diffracting the signal light emitted from the display device and diffusing the signal light to a central angle different from the incident angle. The hologram screen and the display device are arranged in front of a mirror, and a predetermined image and a viewer image can be simultaneously viewed by a viewer.

In the present invention, it should be particularly noted that the hologram screen and the display device are arranged in front of the mirror so that the viewer can visually recognize the predetermined image and the viewer image at the same time. That is, the image emitted from the display device is
The light is diffracted and transmitted by the hologram screen, reflected by the mirror, and visually recognized by a viewer. In addition, the viewer superimposes the own mirror image formed by the mirror on the display image and visually recognizes the same at the same time.

Since the hologram screen uses a transmission type hologram, the selected wavelength band is wide as described above, so that the color tone of the diffracted image and the transmitted image is good.
Also, since the viewer image is a mirror image reflected by the mirror, its line of sight matches the line of sight of the viewer who sees the screen.

Therefore, according to the present invention, it is possible to display an observer image that matches the line of sight of the observer who views the screen, and to obtain an image synthesizing apparatus that is excellent in the reproducibility of the color of the displayed image. .

According to a tenth aspect of the present invention, the image synthesizing apparatus is preferably provided with a front light shielding means for preventing external light from entering from a side of the hologram screen opposite to the mirror or the half mirror. . As a result, a composite image composed of a display image and a viewer image diffracted from the hologram screen is disturbed by external light that enters from the outside and passes through the screen or is diffracted and transmitted by the screen, and reduces the contrast. This is because it is no longer necessary.

According to a fourth aspect of the present invention, there is provided an image synthesizing display device for integrally displaying a viewer image and another predetermined image, wherein the display device emits a signal light including predetermined image information. A half mirror disposed in front of the viewer, and a transmission type hologram screen for diffracting the signal light emitted from the display device and diffusing the signal light to a central angle different from the incident angle. The hologram screen and the display device are arranged in front of or behind a half mirror, so that a composite image composed of a viewer image and a predetermined image can be visually recognized at the same time.

The present invention is the image synthesis display device according to the third invention, wherein the mirror is a half mirror. Then, the hologram screen and the display device are arranged in front of or behind the half mirror. As a result, the viewer visually recognizes a composite image obtained by superimposing the display image transmitted or reflected by the half mirror and the viewer image (mirror image) reflected by the half mirror.

That is, when the viewer is located on the same side as the hologram screen and the display device with respect to the half mirror, the display image reflected by the half mirror and the viewer image (mirror image) reflected by the half mirror are displayed. When the superimposed composite image is visually recognized and the viewer is located on the side different from the hologram screen and the display device with respect to the half mirror, the display image transmitted through the half mirror and the viewer image reflected by the half mirror ( (Mirror image) is superimposed (see FIG. 9). Others are the same as the third invention.

According to the ninth aspect of the present invention, a viewer is arranged on each side of the hologram screen, and one side of the hologram screen is darkened.
The combined image composed of the viewer and the predetermined image on the other side can be simultaneously viewed by the viewers on both sides. That is, by darkening one side of the hologram screen, the viewer image located on that side is not visually recognized, and only the viewer image located on the bright side is visually recognized. Then, the viewers on both sides can see the combined image in which the display image transmitted or reflected by the half mirror and the viewer image transmitted or reflected by the half mirror are superimposed.

That is, the viewer, whose image is displayed on the bright side, views the composite image obtained by superimposing the display image transmitted or reflected by the half mirror and the image (mirror image) reflected by the half mirror. A viewer who is visually aware and does not display his own image on the dark side can view a composite image obtained by superimposing the display image transmitted or reflected through the half mirror and the image of the viewer located on the opposite side transmitted through the half mirror. To see.

According to a ninth aspect of the present invention, in the combined image display device according to the fourth aspect, a rear light blocking means for preventing external light from entering from a side of the half mirror opposite to the hologram screen is provided. Is preferred. Thereby, the display image reflected and transmitted through the half mirror and displayed is not disturbed by the entering external light and the contrast of the display image is not reduced.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 In this embodiment, as shown in FIG. 2, an image synthesis display device 1 that integrally displays an image 891 of a viewer 81 and another image 892 (for example, a hairstyle image) that can be selectively displayed. is there. As shown in FIG. 1, the image synthesizing and displaying apparatus 1 includes a transparent transmission type hologram screen 15 on which a diffusion plate is recorded, an electronic camera 25 as an image pickup means for photographing a viewer image 891 through the hologram screen 15, and a hairstyle. An information recording unit for recording image information; and an image information synthesizing circuit for selecting and extracting desired image information from the information recording unit and synthesizing the image information with image data of a viewer 81 output from the electronic camera 25. And a projector 11 for projecting the signal light 31 on which the image information synthesized by the image information synthesizing circuit 28 is recorded onto the hologram screen 15. In the figure, the chain line is the electric wiring.

A line 35 connecting the central portion of the light incident portion of the camera 25 and the vicinity of the eye 815 of the viewer 81 forms a central portion of the image formed on the hologram screen 15 and the eye 815 of the viewer 81.
The camera 25 is arranged so as to substantially coincide with a line connecting with the vicinity of. The material of the transmission hologram forming the hologram screen 15 is a photopolymer.

The following is a supplementary explanation for each. The electronic camera 25 photographs the viewer 81 through the transparent hologram screen 15, converts the photographed image into a digital electric signal, and inputs the digital electric signal to the image information synthesizing circuit 28. The information recording means 14 sends predetermined hairstyle information as pixel information to an LCD (liquid crystal) panel 13 and an image information synthesizing circuit 28, which will be described later, based on a selection command (not shown).

The image information synthesizing circuit 28 synthesizes the first information (viewer image information) from the camera 25 and the second information (hairstyle information) from the information recording means 14 to form one image information. On the other hand, the projector 11 for projecting the signal light 31 onto the hologram screen 15 includes a backlight light source 12 and an LCD.
(Liquid crystal) panel 13 and reference numerals 121 and 122 denote a light source of the backlight light source 12 and a reflector.

Then, light is emitted from behind the LCD panel 13 to emit a signal light 31 on which a display image 89 formed on the panel 13 is recorded. The panel 13 receives the image information synthesized by the image information synthesizing circuit 28, and forms a display image 89 including a viewer image 891 and a hairstyle image 892 shown in FIG.

After the signal light 31 is reflected by the mirror 21 constituting the imaging optical system 20, a display image is formed on the hologram screen 15 by the imaging lens 22. On the hologram of the hologram screen 15, a diffusion plate is recorded, and the diffused light 32 spreads within the range of the diffusion angle of the diffusion plate, whereby the display image is viewed within the range of the diffusion angle of the diffusion plate. People will be able to see it.

The hologram formed on the hologram screen 15 is a transmission hologram. The diffraction wavelength characteristic of the transmission hologram has a wide selection wavelength band, and therefore, the color tone of the diffracted image and the transmitted image is good. Therefore, camera 2
The color tone of the viewer image photographed by the hologram screen 5 becomes good, and the color tone of the display image 891 displayed by the hologram screen 15 is also good.

Then, the central angle of the diffused light 32 (the diffused light 3
2 is the strongest direction), but the viewer 81 at the central position
Is matched between the incident angle of the signal light 31 and the diffraction characteristic of the hologram so as to be in the direction of.

The hologram screen 15 acts as a mere transparent plate for light other than the incident direction of the signal light 31. The light incident portion of the camera 25 disposed behind the hologram screen 15 is directed to the viewer 81, and the viewer 81 looks through the hologram screen 15 and looks at the screen. can do. Also, the viewer 81 can visually recognize the background of the hologram screen 15, but since the luminance of the display image is much higher than the luminance of the background, it is necessary to recognize only the display image when not particularly gazing. Become.

Unlike the conventional apparatus shown in FIG. 10, the photographing direction 35 of the camera 25 and the line of sight of the viewer 81 can be easily matched, so that the image is displayed on the screen with the line of sight of the viewer 81. The line of sight of the image coincides with the image of the person, and a synthetic image 89 (FIG. 2) of a natural mirror image without a sense of incongruity can be obtained. Further, since it is not necessary to dispose the camera 25 in front of the screen, the space occupied by the apparatus is reduced, and the presence of the camera 25 does not give a feeling of oppression to the viewer 81.

Further, the hologram screen 15 and the camera 25 can be tilted and foldable in the direction of the arrow in FIG. 1, and when not used, they can be folded down to be compactly folded. In addition, although a slight deviation occurs between the direction of the line of sight of the viewer 81 and the imaging direction, the camera 25
May be arranged beside the mirror 21 and housed inside the case. Alternatively, the hologram screen 15 and the camera 25 may be arranged behind the mirror 21 and the whole may be housed in a case.

The hologram of the hologram screen 15 can be manufactured by the exposure method shown in FIG. That is, the optical path of the coherent light 35 emitted from the laser light source 41 is bent by the mirror 42 and then split by the half mirror 43 into an optical path for the object light 36 and an optical path for the reference light 37. And the light 3 that exited on one side (left side of the paper)
Reference numeral 51 denotes a mirror 441, an objective lens 442, an off-axis parabolic mirror 443, which converts the light into parallel light, transmits the diffusion plate 45 to form the object light 36, and enters the photosensitive material 80 via the half mirror 47. .

On the other hand, the other light 3 exiting the half mirror 43
52 is an objective lens 463 through mirrors 461 and 462.
After that, the light is converted into divergent light, and then enters the photosensitive material 80 as the reference light 37 via the half mirror 47. As a result, a transmission hologram in which the diffusion plate 45 is recorded is formed on the photosensitive material 80. As a result, if the hologram screen 15 is irradiated with reproduction light from the direction of the reference light 37 in FIG.
The diffracted light transmitted through the hologram screen 15 is the same as the light diffused by the diffuser 45.

As described above, according to the present embodiment, as shown in FIG. 2, a viewer image 89 that matches the line of sight of the viewer 81 viewing the screen.
1 can be displayed, and the image synthesizing apparatus 1 excellent in color reproducibility of the display image 89 can be obtained.

Embodiment 2 As shown in FIG. 4, this embodiment is another embodiment in which the hologram of the hologram screen 16 is the reflection type in Embodiment 1 as shown in FIG. That is, the signal light 31 enters from the front side of the hologram screen 16, and the viewer 81 visually recognizes the reflected diffracted light (diffused light 32).

Therefore, the display 11 and the imaging optical system 20
Are arranged in the opposite direction to FIG. In the exposure process of the hologram screen 16, the optical path is configured so that the object light 36 and the reference light 37 in FIG. In addition, since this example is a reflection type hologram screen, color reproducibility is inferior to that of the transmission type hologram screen. Also, by adding a half mirror or the like as appropriate, a desired optical path and arrangement can be obtained. Others are the same as in the first embodiment.

Embodiment 3 As shown in FIG. 5, this embodiment differs from Embodiment 1 in that a casing 51 as a rear light shielding means for preventing external light from entering from behind the hologram screen 15 is provided.
This is another embodiment in which an eave 52 and a shielding film 53 are provided as front light shielding means for preventing external light from entering from the front of the hologram screen 15.

As shown in FIG. 5, the hologram screen 15 has a transmission type hologram 152 in which a diffusion plate is recorded on a photopolymer film on a transparent substrate 151 made of glass. The viewer image 891 is
And is sent to the image information synthesizing circuit 28. Also,
The viewer 81 selects a desired image to be linked with the image selection switch 281. The selected image 892 is
The image data is sent to the image information synthesizing circuit 28, is synthesized with the viewer image 891, and is formed and displayed on the hologram screen 15 by the projector 11.

The composite image can be printed by the color printer 29 based on the instruction. As shown in FIG. 5, the camera 25, the projector 11, and the like are housed in a casing 51. Therefore, the periphery of the camera 25 and the back of the hologram screen 15 become dark, the contrast of the display image 89 displayed on the hologram screen 15 is secured, and the visibility of the display image is improved.

An eave 52 is provided in front (on the opposite side of the projector 11) so as to cover the hologram screen 15. This makes it possible to prevent noise light such as illumination light from entering the screen 15.
Therefore, the display image is not disturbed by external light from the front.

Further, by arranging the shielding film 53 behind the viewer 81, the entrance of external light can be further suppressed. Then, the shielding film 53 is used for the camera 25 to display the viewer image 8.
When shooting the image 91, there is an effect that the background is made uniform and the contrast is enhanced. Further, the eaves 52 can prevent the zero-order diffracted light (light component transmitted without being diffracted) of the hologram screen 15 due to the signal light 31 projected from the projector 11 from leaking out. Others are the same as the first embodiment.

Embodiment 4 The present embodiment relates to an image synthesizing and displaying apparatus 10 for integrally displaying an image of a viewer 81 and another image that can be selectively displayed, as shown in FIG. A transparent transmissive hologram screen 15 on which a plate is recorded, a CRT display device 55 as background display means installed behind the viewer 81 and capable of displaying an image serving as a background of the viewer 81 on the CRT 551, and a hologram An electronic camera 25 as a photographing means for integrally photographing the background image and the viewer image through the screen 15, and a projector 11 for projecting a signal light 31 recording image information photographed by the camera 25 onto the hologram screen 11. Having.

The image synthesizing and displaying apparatus 10 of this embodiment can provide the same operation and effect as the apparatus 1 of the first embodiment without the image information synthesizing circuit 28. Then, the image information synthesizing circuit 2
8 eliminates the need for electrical image synthesis, so that high-speed image processing is possible, and there is an excellent effect in synthesizing moving images and the like. Therefore, it is suitable as a display device for a virtual game or the like in which the viewer 81 participates in the game. Others are the same as in the first embodiment.

Fifth Embodiment The present embodiment relates to an image synthesizing and displaying apparatus 100 for integrally displaying an image of a viewer 81 and another selectively displayable image.
As shown in FIG. 7, a projector 11 that emits a signal light 31 including predetermined image information, a mirror 61 disposed in front of a viewer 81, and a projector 11 that emits a signal light 31 as shown in FIG. A transmission type hologram screen 15 for diffracting the signal light 31 and diffusing the signal light (diffracted light 32) to a central angle different from the incident angle.
5 and the projector 11 are arranged in front of the mirror 61 so that the viewer 81 can simultaneously view a predetermined image projected from the projector 11 and a mirror image of the viewer 81 specularly reflected from the mirror 61. It is.

That is, the viewer 81 copies the mirror image of himself / herself to the mirror 6.
1 and the camera 25 of the first to fourth embodiments is unnecessary. As shown in FIG. 8, the signal light 31 projected from the projector 11 to the screen 15 is
5, the diffracted light 32 travels to the mirror 61. The diffracted light 32 is specularly reflected by the mirror 61, enters the screen 15 at an angle that is not diffracted, passes through the transparent screen 15, and reaches the viewer 81. Then, the viewer 81 visually recognizes the projected display image. FIG.
Reference numeral 611 denotes a reflection surface of the mirror 61.

As described above, even though the transmission type hologram screen 15 has good color reproducibility, the signal light 31 is eventually reflected, and acts like a reflection type hologram screen. Therefore, the projector 11 can be installed on the viewer 81 side, and it is possible to cope with an arrangement condition with a small space behind the screen 15 such as a barber shop. Others are the same as the first embodiment.

Embodiment 6 As shown in FIG. 9, this embodiment is another embodiment in which a mirror 61 is replaced with a half mirror 62 in Embodiment 5. As a result, the signal light 31 projected from the projector 11 is diffracted by the transmission type hologram screen 15, a part 321 of the diffracted light 32 is reflected by the half mirror 62, and another part 322 is reflected by the half mirror 62. To Penetrate.

Therefore, the first viewer 811 on the projector 11 side also has the second viewer 812 on the opposite side of the projector 11.
Also, the display image recorded on the signal light 31 can be visually recognized. Similarly, the display lights 36 and 37 on which the images of the viewers 811 and 812 are recorded are reflected or transmitted by the half mirror 62 and travel forward and backward. Then, by viewing the reflected light 361, 371 or the transmitted light 362, 372, the viewers 811 and 812 can be viewed simultaneously with the display image on either side.

Therefore, one side of the hologram screen 15 (half mirror 62) is darkened so that one viewer 81
Thus, the viewers 811 and 812 on both sides can simultaneously view the combined image composed of the viewers 812 and 811 and the display image on the other side so that the images 1 and 812 do not appear. Others are the same as the fifth embodiment.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an image synthesis display device according to a first embodiment.

FIG. 2 is a diagram schematically illustrating a composite image of the image composite display device according to the first embodiment.

FIG. 3 is a system configuration diagram in a hologram exposure step of the hologram screen of the first embodiment.

FIG. 4 is a system configuration diagram of an image synthesis display device according to a second embodiment.

FIG. 5 is a system configuration diagram of an image synthesis display device according to a third embodiment.

FIG. 6 is a system configuration diagram of an image synthesis display device according to a fourth embodiment.

FIG. 7 is a system configuration diagram of an image synthesis display device according to a fifth embodiment.

FIG. 8 is a diagram schematically illustrating the behavior of light entering and exiting a hologram screen and a mirror of the image composition display device according to the fifth embodiment.

FIG. 9 is a diagram illustrating a system configuration of an image combining and displaying apparatus according to a sixth embodiment, and a diagram schematically illustrating behaviors of light entering and exiting a hologram screen and a half mirror.

FIG. 10 is a diagram schematically showing the appearance of a conventional image synthesis and display device.

FIG. 11 is a diagram schematically showing the behavior of light entering and exiting a hologram screen and a display screen of a conventional image synthesis display device.

FIG. 12 shows an example of the diffraction characteristic of a transmission hologram (a) and an example of the diffraction characteristic of a reflection hologram (b).

[Explanation of symbols]

 11. . . 14. Projection means (projector), . . Hologram screen, 25. . . 31. imaging means (camera); . . Signal light, 81. . . Audience,

Claims (11)

[Claims] 1. An image synthesizing and displaying apparatus for integrally displaying an image of a viewer and another image, comprising: a transparent hologram screen on which a diffusion plate is recorded; Means, information recording means for recording image information, image information synthesizing means for synthesizing other image information and a viewer image, and projecting means for projecting a signal light including the synthesized image information onto the hologram screen. An image synthesis display device comprising: 2. An image synthesizing display device for integrally displaying an image of a viewer and another image, comprising: a transparent hologram screen on which a diffusion plate is recorded; Background display means capable of displaying an image to be displayed, photographing means for integrally photographing the background image and the viewer image through the hologram screen, and signal light including image information photographed by the photographing means. An image synthesizing display device, comprising: projection means for projecting onto a hologram screen. 3. The hologram screen according to claim 1, wherein a line connecting a central portion of the light-entering portion of the imaging means and the vicinity of the viewer's eye is a central portion of the image formed on the hologram screen. An image synthesizing and displaying apparatus, wherein the imaging means is arranged so as to substantially coincide with a line connecting the vicinity of the eye. 4. The image synthesizing and displaying apparatus according to claim 1, wherein the hologram forming the hologram screen is a transmission hologram. 5. An image synthesizing and displaying apparatus according to claim 1, further comprising a rear light blocking means for preventing external light from entering from behind the hologram screen. 6. An image synthesizing and displaying apparatus according to claim 1, further comprising a front light shielding means for preventing external light from entering from the front of said hologram screen. 7. An image synthesizing display device for integrally displaying an image of a viewer and another predetermined image, wherein the projection device emits a signal light including predetermined image information, and a projection device is provided in front of the viewer. And a transmission-type hologram screen for diffracting the signal light emitted from the projection device and diffusing the signal light to a central angle different from the incident angle. The hologram screen and the projection device And an image combining display device, wherein a predetermined image and a viewer image are simultaneously visible to a viewer. 8. An image synthesizing display device for integrally displaying a viewer image and another predetermined image, wherein the projection device emits a signal light including predetermined image information, and is disposed in front of the viewer. And a transmission-type hologram screen that diffracts the signal light emitted from the projection device and diffuses the signal light to a central angle different from the incident angle. The hologram screen and the projection device And an image combining display device arranged in front of or behind a half mirror so that a combined image composed of a viewer image and a predetermined image can be visually recognized simultaneously. 9. The composite image according to claim 8, wherein viewers are arranged on both sides of the hologram screen, one side of the hologram screen is darkened, and a viewer on the other side and a predetermined image are combined. An image synthesizing display device characterized in that the images can be visually recognized simultaneously by viewers on both sides. 10. The image synthesizing display device according to claim 8, further comprising a rear light blocking means for preventing external light from entering from a side of the half mirror opposite to the hologram screen. 11. The hologram screen according to claim 7, further comprising a front light-shielding means for preventing external light from entering from a side of the hologram screen opposite to a mirror or a half mirror. Image synthesis display device.