JP3489374B2 - Stereoscopic image recording device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a fly-eye lens plate,
The present invention relates to a stereoscopic image recording apparatus that records a stereoscopic image using a lens plate for stereoscopic image recording including a plurality of lenses, such as a cylindrical convex lens array plate.

[0002]

2. Description of the Related Art Stereoscopic photography has been known for a long time as one of image expressing means for allowing an observer to perceive a stereoscopic effect. By the way, a device for allowing a 3D image to be viewed freely from an arbitrary point of view began to be proposed after the beginning of this century, but no effective proposal for practical use was announced until the 1960s. It was As mentioned above, as a stereoscopic photography technique that allows a user to freely view a three-dimensional image from an arbitrary viewpoint, initially proposed was a parallax panorama using vertical stripe slits (paralux barrier). Then, a stereoscopic photography method was proposed in which an optical image of a subject was formed on a photosensitive recording medium through a fly's eye lens plate or a cylindrical convex lens array plate to photograph the image.

However, when an optical image of a subject is directly imaged on a photosensitive recording medium by using a fly-eye lens plate or a cylindrical convex lens array plate, a so-called inside-out real image is reproduced. In order to be performed, a two-step integral method is used in which the above-mentioned real image of inside out is imaged on a photosensitive recording medium by using a fly-eye lens plate or a cylindrical convex lens array plate for photographing. A stereoscopic photography method using a photography technique has been proposed. Also,
As shown in FIGS. 13 to 16, a plurality of images obtained by photographing a subject from multiple directions with a monocular camera are mounted on a projector and projected, and the projected images are projected onto a fly-eye lens plate or a fly-eye lens plate. Also, there has been proposed a stereoscopic photography method in which a cylindrical convex lens array plate is used to form an image on a photosensitive recording medium to record a stereoscopic image.

Each of FIGS. 13 (a) to 16 (a) is
It illustrates different means for capturing an image of a subject with a monocular camera from a plurality of different predetermined directions so as to obtain a plurality of images of the subject viewed from individual directions in a plurality of different predetermined directions. 13 to FIG. 16 are the same as FIG. 13 to FIG.
In the shooting mode as shown in each (a) of FIG. 6, individual images of the subject obtained by developing after processing with a monocular camera (“image obtained by developing after shooting the subject” is referred to as “subject Is also described as "the image obtained by shooting the image.") By a projector in which the direction of the optical axis of the projection lens is aligned with the direction of the optical axis of the shooting lens when the image was taken. , The projected image is imaged on a photosensitive recording medium installed on the focal plane of a lens plate for stereoscopic image recording, in which a plurality of lenses are arranged, such as a fly-eye lens plate or a cylindrical convex lens array plate. 3 illustrates different means for recording a stereoscopic image.

In the following description of the stereoscopic image recording apparatus shown in FIGS. 13 to 16, a case where a cylindrical convex lens array plate is used as a stereoscopic image recording lens plate in which a plurality of lenses are arranged is used. Mainly stated. First, (a) of FIG.
So that the optical axis of the photographing lens passes through the specific point O and the distance from the specific point O to the exit pupil of the photographing lens becomes equal in the plane including the specific point O in FIG. A plurality of monocular cameras 2a, 2b, 2 arranged
The state in which the subject is photographed is shown by c ....

Further, FIG. 13B shows an image obtained by individually photographing the subject 1 by the plurality of monocular cameras 2a, 2b, 2c ... , 2c ... Projected by the individual projectors 3a, 3b, 3c, provided so as to respectively correspond to the photosensitive projection media, and the respective projected images are placed on the focal plane of the cylindrical convex lens array plate 5 shows a state in which an image is formed on the image.
Then, the photosensitive recording medium 5 described above is subjected to development processing to become the recorded photosensitive recording medium 5 on which the stereoscopic image of the subject 1 is recorded. The cylindrical convex lens array plate 4 is arranged such that the direction of its cylindrical axis is orthogonal to the plane including the optical axes of the projection lenses in the plurality of projectors 3a, 3b, 3c.

The arrangement of the plurality of monocular cameras 2a, 2b, 2c ... Shown in FIG. 13 (a) and the plurality of projectors 3a, 3 shown in FIG. 13 (b).
The arrangement mode of b, 3c ... Is the same as that of FIG.
The specific point O on the subject 1 shown in FIG.
3 corresponds to O'shown in (b), and the distance from the exit pupil of the photographing lens to the point O is equal to the distance from the exit pupil of the projection lens to the point O '. .

In the stereoscopic image recording apparatus described with reference to FIG. 13, a plurality of monocular cameras 2a, 2b, which are arranged in advance in a plurality of predetermined different directions in order to photograph an object from a plurality of predetermined different directions. 2c ... and a plurality of projectors 3 arranged in the same arrangement as the arrangement of the plurality of monocular cameras 2a, 2b, 2c.
Although a, 3b, 3c ...
In the stereoscopic image recording apparatus illustrated in FIG. 1, the optical axis of the photographing lens of one monocular camera 2 passes through a specific point of the subject 1 in a plane including the specific point O of the subject 1. Then, as illustrated in FIG. 14A, the monocular camera 2 may be moved linearly, or as illustrated in FIG. 15A, the monocular camera 2 may be curved. 16A, the optical axis of the taking lens of one monocular camera 2 is changed as shown in FIG.
The object 1 is rotated about the point O in a state of passing the specific point of the object 1 in a plane including the specific point O of the object 1.

As described above, a single monocular camera is used to photograph an object from a plurality of different predetermined directions,
In order to obtain a plurality of images of the subject viewed from the respective different directions in the predetermined different directions, a new photosensitive recording medium is prepared for each one of the directions in the predetermined different directions. The camera is attached to a monocular camera to take a picture.

Further, in the stereoscopic image recording apparatus illustrated in FIGS. 14 to 16, the optical axis of the projection lens of one projector 3 causes a specific point O'of the focal plane of the cylindrical convex lens array plate 4 to be formed. In a plane including the above, the projector 3 is moved linearly as illustrated in FIG. 14B, after being made to pass through the specific point O ′, or in FIG. 15B. 16B, the projector 3 is curvedly moved, or, as shown in FIG. 16B, the optical axis of the projection lens of one projector 3 is the cylindrical convex lens array plate 4 In a plane including a specific point O ′ of the focal plane of the cylindrical convex lens array plate 4 with a cylindrical axis passing through the specific point O ′, Rotate around the center of rotation It is.

That is, in the case of a three-dimensional image recording apparatus in which the cylindrical convex lens array plate 4 is used as the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged, the cylindrical convex lens array plate 4 is used. Installation of the projector and the cylindrical convex lens array plate 4 so that the movement locus of the optical axis of the projection lens of the projector above is orthogonal to the cylindrical axis of the cylindrical convex lens forming the cylindrical convex lens array plate 4. The mode is determined, and the installation mode of the monocular camera is determined such that the movement locus of the optical axis of the projection lens of the projector and the movement locus of the optical axis of the photographing lens of the monocular camera coincide with each other. .

On the other hand, in the case of a three-dimensional image recording apparatus having a fly-eye lens plate 4 as the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged, a specific point on the subject is In the plane including the above, the operation of photographing the subject is performed with each individual straight line in the plurality of radial straight lines that equally divides the area set with the specific point as the apex as the optical axis of the photographing lens. ,
In the plane orthogonal to the plane including the specific point on the subject, each individual straight line in the radial multiple straight lines that equally divides the area set with the specific point as the vertex, The operation of photographing the subject as the optical axis is performed.

The stereoscopic photography technique described above with reference to FIGS. 13 to 16 has the following features:
For an area having a predetermined center angle set with the specific point as the apex, each individual straight line in a plurality of radial straight lines that equally divides the area is used as the optical axis of the photographing lens to photograph the subject. At this time, the images of the subjects to be obtained individually are used as the images of the individual subjects in the images of the plurality of subjects to be projected by the projector, and the individual images in the images of the subjects described above are used. With a projector having a projection lens in which the direction of the optical axis matches the direction of the optical axis of the photographing lens at the time of shooting, the image of each individual subject in the images of the plurality of subjects described above is converted into a fly's eye lens plate or Photosensitivity placed on the focal plane of a lens plate for stereoscopic image recording consisting of multiple lenses arranged like a cylindrical convex lens array plate Is a three-dimensional photographic technique for recording a stereoscopic image so as to form an image on the recording medium, it can be expressed as that.

The stereoscopic image recording apparatus illustrated in FIGS. 13 to 16 described above has a three-dimensional shape and size that are actually present in the space in order to simplify the explanation and facilitate understanding. An object having a height is set as a subject 1 to be recorded, and the subject 1 is photographed from a plurality of predetermined different directions by one or a plurality of monocular cameras, and the plurality of predetermined different In this case, a plurality of images of the subject viewed from the individual directions in the above direction are obtained. However, as described above, for a region having a predetermined central angle set with the above-mentioned specific point as a vertex in the plane including the specific point in the subject, the boundary line of the above-mentioned region and the above-mentioned region are equally divided. When the subject is photographed by using the individual straight lines of the plurality of radial straight lines composed of the plurality of straight lines as the optical axes of the photographing lenses, the images of the respective subjects to be individually obtained are projected by the projector. The image of each individual subject in the plurality of subject images is not an object having a three-dimensional shape and size that actually exists in the space, but is, for example, a field of design, It can also be obtained from 3D images by computer graphics used in medical equipment such as X-ray CT, equipment for vibration analysis, equipment for molecular structure research, etc. It may be.

That is, when the object 1 to be recorded is a three-dimensional image by computer graphic, the three by computer graphic described above.
A one-dimensional camera or a plurality of monocular cameras described above,
Similar to the case of the subject photographed from a plurality of predetermined different directions, the three-dimensional image by the computer graphic is individually separated from the plurality of images of the subject viewed from the respective different directions in the predetermined different directions. Obtaining corresponding image data, the image data is used to display an image on the active matrix liquid crystal display device, and the image displayed on the active matrix liquid crystal display device is used as a projection image. Good.

By the way, when a stereoscopic image is reproduced from a recorded photosensitive recording medium on which a stereoscopic image is recorded by using the stereoscopic image recording device, the recorded photosensitive recording medium used for reproduction is recorded. A three-dimensional image recording lens plate (fly's-eye lens plate, cylindrical convex lens / array plate) 4 having a plurality of lenses used for recording a three-dimensional image and having the same configuration as the three-dimensional image reproducing lens plate (fly) Eye lens plate, cylindrical convex lens array plate), a prerecorded photosensitive recording medium on which a stereoscopic image to be reproduced is recorded, and the prerecorded photosensitive recording medium is irradiated by reproducing light. The stereoscopic image recorded in is reproduced.

However, when a stereoscopic image is reproduced from a recorded photosensitive recording medium, the recorded photosensitive recording medium and a lens plate for reproducing a stereoscopic image (a fly-eye lens plate, a cylindrical lens) are arranged. It is not easy to correctly set the mutual positional relationship between the convex lens and the array plate), especially when the number of recorded images on the recorded photosensitive recording medium is large. There has been a problem in that it is extremely difficult to correctly set the mutual positional relationship between the recording medium and the stereoscopic image reproducing lens plate in which a plurality of lenses are arranged. As one of the means for solving the above-mentioned problems, a complicated mechanism for adjusting the relative positional relationship between a recorded photosensitive recording medium and a stereoscopic image reproducing lens plate in which a plurality of lenses are arranged is provided. The film holder that is equipped with is 3-50
No. 501 publication.

[0018]

The problem to be solved by the invention will now be described with reference to FIGS.
In the stereoscopic image recording apparatus described above with reference to FIG. 6, in a plurality of predetermined different directions within an angle range corresponding to the viewing area determined by the configuration of the lens plate for stereoscopic image recording in which a plurality of lenses are arranged, Each of a plurality of images of a subject viewed from an individual direction is projected by a projector, and the plurality of lenses are arrayed via a stereoscopic image recording lens plate 4 in which the plurality of lenses are arrayed on the projected image. The three-dimensional image information is recorded on the photosensitive recording medium 5 arranged on the focal plane of the lens plate 4 for three-dimensional image recording. The image projected by the projector is an optical image recorded on a photographic plate or photographic film as described above, or an optical image displayed on an active matrix liquid crystal display device (intensity by a light valve, for example). It may be a modulated optical image).

By the way, in recent years, an image corresponding to an image signal supplied from an image signal source is displayed on an active matrix liquid crystal display element used as an image forming section, and the image displayed on the active matrix liquid crystal display element is displayed. There is now provided a projector having a configuration mode in which the above is projected using a projection lens system.
The projector configured as described above has an active matrix liquid crystal display element used as a constituent member thereof, for example, the number of pixels is 640 horizontal pixels ×
When a vertical size of 480 pixels and a size of about 1.3 inches is used, the size of one pixel in the active matrix liquid crystal display device is about 0.04 mm.
Becomes

A transmissive active matrix liquid crystal display element known as a kind of light valve constructed by using liquid crystal as a light modulating material has a large number of pixels arranged two-dimensionally. In each of the above-mentioned many pixels, a constituent portion (for example, a thin film transistor) for individually controlling the amount of transmitted light is provided in association with each pixel as a portion in a state in which light cannot be transmitted. In addition, a light-shielding region (black matrix, black stripe, etc.) formed between each pixel for improving image quality is provided, and a signal electrode busbar, a scanning electrode busbar, etc. are also non-transmissive portions.

Therefore, in the active matrix liquid crystal display element in which a large number of pixels are arranged two-dimensionally, the light used for displaying an image is the incident light among the lights incident on the active matrix liquid crystal display element. However, the pixel aperture ratio, which indicates the ratio of the amount of light incident on one pixel region to the amount of light output from one pixel in the state of 100% white, is the total area of the liquid crystal display element. Under a certain condition, the larger the number of pixels is, of course, the lower the number is. Therefore, an active matrix liquid crystal display device capable of displaying a high-definition display image by increasing the number of pixels is It is well known that the aperture ratio is set. The pixel aperture ratio in the current active matrix liquid crystal display element is usually about 60% to 70%.

As described above, the size of one pixel is about 0.04 mm, and the number of pixels is 640 horizontal pixels × 4 vertical pixels.
An image displayed on an active matrix liquid crystal display device having 80 pixels and a size of about 1.3 inches is magnified by a projection lens system and is displayed on the screen, for example, 320 pixels.
Assuming that a projected image of a size of 0 mm × 2400 mm is projected, one pixel of a size of about 0.04 mm in the active matrix liquid crystal display device is
In the projected image magnified on the screen as described above, it is recognized as a pixel having a size of about 0.5 mm. Then, although the light non-transmissive portion as described above exists between the pixels in the large number of two-dimensionally arranged pixels in the active matrix liquid crystal display element, it is enlarged on the screen. It can be confirmed visually that a grid (dark portion) is generated between the projected pixels.

That is, the above-mentioned active matrix liquid crystal display element is included, and a large number of pixels are two-dimensionally arranged in a state in which light-impermeable portions are provided between the pixels, In the light valve configured so that the light modulation operation is performed by the light modulation material member, as described by taking the active matrix liquid crystal display element as an example, the light opaque portion provided between the pixels. Due to the existence of, the image projected in an enlarged manner on the screen has a grid (dark portion) between each pixel. 4A and 4B are diagrams for explaining the above-described state, in which S is a screen and V is a pattern of a dark portion generated in the image projected on the screen S. Is an example for easy understanding.

By the way, in the projector 3 of the three-dimensional image recording apparatus, the image to be projected displayed on the active matrix liquid crystal display element is not projected onto the screen S by the projection lens system 6, but is described above. An image displayed on the matrix liquid crystal display element as an object of projection is projected by the projection lens system 6,
Photosensitive recording provided on the focal plane of a stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses by the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses. The recording is made on the medium 5.

Therefore, the projector 3 of the stereoscopic image recording apparatus uses an active matrix liquid crystal display element having a configuration in which light-impermeable portions are provided between pixels, and is projected as a projection target. The projected image is projected by the projection lens system 6 and the focus of the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses via the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses. When recording on the photosensitive recording medium 5 installed on the surface, the above-mentioned photosensitive recording medium 5 corresponds to the light non-transmissive portion provided between the pixels in the active matrix liquid crystal display element. The dark portion to be recorded is recorded as a pattern indicated by V in FIG. 4A, for example.

The three-dimensional image recording lens plate 4 having a plurality of lenses arranged therein has a plurality of lenses arranged at a predetermined lens pitch Pl, and is active. The pattern of dark portions generated corresponding to the light non-transmission portions provided between the pixels in the matrix liquid crystal display element also follows the pixel pitch Pg determined by the pixel arrangement pattern [( b)]. Therefore, when the projected image composed of the pixel group having the pixel pitch Pg is recorded on the photosensitive recording medium 5 by the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses having the lens pitch Pl, As is well known, the period determined by the pixel pitch Pg and the lens pitch Pl is 1 / Pg-1 /
The interference fringes having Pl will be recorded on the photosensitive recording medium 5 together with the stereoscopic image.

By recording the above-mentioned interference fringes on the photosensitive recording medium 5, the recorded light on which the three-dimensional image obtained by developing the photosensitive recording medium 5 is recorded is irradiated with reproduction light. When the stereoscopic image is observed by using the stereoscopic image, the interference fringes are observed together with the stereoscopic image, so that the stereoscopic image of low quality is observed. As a means for reducing the influence of the interference fringes described above, for example, a solution method of recording a projected image in a blurred state is known. However, since the resolution of the stereoscopic image is reduced, it is impossible to reproduce a high-quality stereoscopic image.

Further, when a stereoscopic image is reproduced from the recorded photosensitive recording medium, the mutual positional relationship between the recorded photosensitive recording medium and the stereoscopic image reproducing lens plate in which a plurality of lenses are arranged. There was a significant difficulty in setting the value correctly, and even if the film holder disclosed in Japanese Utility Model Publication No. 3-50501 is used as one of the means for solving this problem, the skill level is The need is a problem. Therefore, the advent of a stereoscopic image recording apparatus without the above-mentioned problems has been desired.

[0029]

According to the present invention, each of a plurality of radial straight lines that equally divides a region set with the above-mentioned specific point as an apex in a plane including a specific point on a subject is described. When shooting a subject using the straight line as the optical axis of the shooting lens, the image of the subject that should be obtained individually is used as the image of each individual subject in the images of the plurality of subjects to be projected by the projector. By using a projector having a projection lens in which the direction of the optical axis is aligned with the direction of the optical axis of the photographing lens when each individual image in the image of the subject is used, Stereoscopic image recording of multiple images of individual subjects, such as a fly-eye lens plate or a cylindrical convex lens array plate In a stereoscopic image recording apparatus configured to form an image on a photosensitive recording medium installed on a focal plane of a lens plate, a stereoscopic image recording lens plate formed by arranging a plurality of lenses is projected from the projector. For each individual image formed on the photosensitive recording medium, a predetermined number of identical images with the pixels relatively shifted by half the pixel pitch are recorded on the photosensitive recording medium. In a stereoscopic image recording apparatus provided with means for recording, and a stereoscopic image recording apparatus using a projector having an aperture in a projection lens system, a plurality of lenses are projected from the projector. For each individual image formed on the photosensitive recording medium via the three-dimensional image recording lens plate in which the pixels are arranged, the pixels are relatively shifted by half the pixel pitch. A stereoscopic image recording device provided with means for recording a plurality of the same images on the photosensitive recording medium, and an image displayed on an active matrix liquid crystal display device to be projected from a projector. And drive displacement of the active matrix liquid crystal display element,
For each individual image formed on the photosensitive recording medium through the three-dimensional image recording lens plate in which a plurality of lenses are arranged,
A stereoscopic image recording device configured to record a predetermined number of identical images in a state where pixels are relatively shifted by half the pixel pitch, and a plurality of lenses are arrayed by being projected from a projector. For each individual image formed on the photosensitive recording medium via the three-dimensional image recording lens plate, a plurality of identical images of a predetermined number in which the pixels are relatively shifted by half the pixel pitch are , A stereoscopic image recording device configured to drive and displace a stereoscopic image recording lens plate having a plurality of lenses arranged so as to be recorded on the photosensitive recording medium, and projected from a projector,
For each individual image formed on the photosensitive recording medium through the three-dimensional image recording lens plate in which a plurality of lenses are arranged,
A predetermined number of identical images with the pixels relatively shifted by half the pixel pitch are arranged in the optical path on which the images are projected so that the same images are recorded on the photosensitive recording medium. Provided is a stereoscopic image recording device in which an optical member that is driven is displaced.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific contents of the stereoscopic image recording apparatus of the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a schematic configuration of a stereoscopic image recording apparatus of the present invention, 3 is a projector, 6 in FIG. 1 is a projection lens system of the projector 3, and 7 is the above-mentioned projection lens. It is a diaphragm provided in the system 6. Reference numeral 4 denotes a three-dimensional image recording lens plate in which a plurality of lenses are arranged. As the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged, for example, a fly-eye lens plate or a cylindrical convex lens array plate is used. Is used. 1 illustrates a case where a cylindrical convex lens array plate is used as the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses, and 5 is the cylindrical convex lens array plate 4 described above. It is a photosensitive recording medium installed on the focal plane of.

In the following description, the case where the cylindrical convex lens array plate 4 is used as the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses will be mainly described, and only when necessary. A description is given of a case where a fly-eye lens plate is used as the stereoscopic image recording lens plate 4 in which a plurality of lenses are arranged. By the way, in the stereoscopic image recording apparatus illustrated in FIG. 1, as in the stereoscopic image recording apparatus described above with reference to FIG. When the image to be projected from the projector 3 is photographed with the Y-axis of the cylindrical convex lens array plate 4 arranged at the same as the center of rotation, the same angle is formed between the optical axis of the photographing lens and the X-axis. By rotating the cylindrical convex lens array plate 4 so that the X axis of the cylindrical convex lens array plate 4 is inclined with respect to the optical axis of the projection lens system 6.
The image projected from is imaged on the photosensitive recording medium 5 installed on the focal plane of the cylindrical convex lens array plate 4 so that a stereoscopic image can be recorded.

The above-mentioned cylindrical convex lens array plate 4 is rotatable on a Y-axis rotary base 11 for rotating the cylindrical convex lens array plate 4 with a vertical axis shown as the Y axis in FIG. 1 as a rotation axis. Supported by. The X-axis turntable 12 shown in FIG. 1 is a three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged.
When the fly-eye lens plate 4 is used, the fly-eye lens plate 4 is used with the horizontal axis shown as the X axis in FIG. 1 as the rotation axis.
It is provided to rotate the. Therefore, when the fly-eye lens plate 4 is used as the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses, the fly-eye lens plate includes a Y-axis rotary base 11 and an X-axis rotary base. The recording operation is performed by being rotatably supported by both rotary bases.

The above-mentioned projector 3 is attached to a frame 8 which can move in the Z-axis direction along rails 9a and 9b provided on the machine base 10. The distance L between the exit pupil of the projection lens system of the projector 3 and the focal plane of the cylindrical convex lens / array plate 4 (distance L between the projector 3 and the cylindrical convex lens / array plate 4) is from the projector 3 to the cylindrical convex lens.・
The projector 3 mounted on the mount 8 is mounted on the rail 9 on the machine base 10 so that the size of the image projected and formed on the surface of the array plate 4 becomes a predetermined size.
A specific position can be set by moving in the Z-axis direction along with a and 9b.

FIG. 8 is a diagram for explaining the outline of a stereoscopic image recording operation in the stereoscopic image recording apparatus shown in FIG. 1. FIG. 8B is a projection lens system 6 of the projector 3. The optical axis of (1) corresponds to the normal line of the cylindrical axis of the cylindrical convex lens array plate 4 is illustrated.
In addition, FIG. 8A shows that the cylindrical convex lens array plate 4 is rotated counterclockwise from the state shown in FIG. 8B with the Y axis in FIG. θ
It shows a state of being rotated by (+ θ). Further, FIG. 8C shows a cylindrical convex lens array plate 4
However, from the state shown in FIG. 8B, the angle θ (−θ) is clockwise with the Y axis in FIG. 1 described above as the rotation axis.
It shows a state in which only the rotation is made.

In the operation of recording a stereoscopic image by the stereoscopic image recording apparatus shown in FIG. 1, first, the image projected from the projector 3 is a cylindrical convex lens array plate 4
The projector 3 mounted on the pedestal 8 so that an image of a predetermined size is formed on the surface of the projector 3.
Are moved along the rails 9a and 9b provided on the machine base 10. Next, as described above, the projector 3
After setting the cylindrical convex lens array plate 4 and the cylindrical convex lens array plate 4 at a predetermined distance, the cylindrical convex lens array plate 4 is rotated about the Y axis by the Y-axis turntable 11 to produce the image shown in FIG. As shown, the cylindrical convex lens array plate 4 is rotated by + θ.

An image of a subject photographed by the monocular camera is mounted on the projector 3 with the optical axis of the imaging lens of the monocular camera set in the direction of + θ degrees from the front of the subject, and the image projected from the projector 3 is shown in FIG. + θ as shown in a)
An image is formed on the cylindrical convex lens array plate 4 in a state of being inclined only and recorded on the photosensitive recording medium 5. The image projected from the projector 3 has a configuration mode in which a large number of pixels are two-dimensionally arranged in a state where light-impermeable portions are provided between the pixels, and the light modulation member member is provided. A light valve configured to perform a light modulation operation by, for example, an image displayed on an active matrix liquid crystal display element, corresponding to a light opaque portion provided between pixels, It has a pattern of dark portions between pixels.

In an electro-optical display element such as the active matrix liquid crystal display element described above, for example, an object having a three-dimensional shape and size actually existing in space, Three-dimensional images by computer graphics used in the fields of design, medical equipment such as X-ray CT, equipment for vibration analysis, equipment for molecular structure research, etc. By using image data that individually corresponds to a plurality of viewed images, the active matrix liquid crystal display element provided in the projector 3 is
An image to be projected from the projector 3 can be displayed.

As described above, with the cylindrical convex lens array plate 4 tilted by + θ as shown in FIG. 8A, the optical axis of the imaging lens of the monocular camera is + θ degrees from the front of the subject. An image similar to the image obtained when a subject is photographed by a monocular camera is displayed on the active matrix liquid crystal display device provided in the projector 3, and the image projected from the projector 3 is projected by the cylindrical convex lens array plate 4 After the image is recorded on the photosensitive recording medium 5 and the cylindrical convex lens array plate 4 is rotated in the clockwise direction (-θ direction) by the Y-axis turntable 11, the Y-axis is sequentially rotated by a predetermined angle. The lens is rotated about the center, goes through the state shown in FIG. 8B, and then the cylindrical convex lens array plate 4 is moved as shown in FIG. 8C. Although it is tilted by θ, it is obtained each time the cylindrical convex lens array plate 4 is sequentially rotated by a predetermined angle about the Y axis as a rotation center and a subject is photographed by a monocular camera. An image similar to each predetermined image of the subject is displayed on the active matrix liquid crystal display element provided in the projector 3, projected from the projector 3, and then projected on the cylindrical convex lens array plate 4. An image is formed and recorded on the photosensitive recording medium 5.

For example, when the cylindrical convex lens array plate 4 is rotated to the state shown in FIG. 8A, the optical axis of the image pickup lens of the monocular camera is set to the front direction of the subject. An image similar to the image of the subject obtained when the subject is photographed by the monocular camera is displayed on the active matrix liquid crystal display element provided in the projector 3, and the image projected from the projector 3 is shown in FIG. An image is formed on the cylindrical convex lens array plate 4 in the state as shown in (b) and recorded on the photosensitive recording medium 5.

Further, the cylindrical convex lens array plate 4 is rotated about the Y axis by the Y-axis turntable 11 so that the cylindrical convex lens array plate 4 becomes -θ as shown in FIG. 8C. When the camera is rotated only for the same time, the optical axis of the imaging lens of the monocular camera is set to the direction of -θ degrees from the front of the subject, similar to the image of the subject obtained when the subject is photographed by the monocular camera. Image is displayed on the active matrix liquid crystal display element provided in the projector 3 and the image projected from the projector 3 is tilted by −θ as shown in FIG. 8C. The image is formed on the cylindrical convex lens array plate 4 and recorded on the photosensitive recording medium 5.

The stereoscopic image recorded on the photosensitive recording medium as described above corresponds to the viewing zone angle Ψ in the angular range of + θ to −θ, and the viewing zone angle Ψ is the stereoscopic image. It is determined by the configuration of the stereoscopic image recording lens plate 4 in which a plurality of lenses used for recording are arranged. Now, for example, when the viewing zone angle Ψ is 30 degrees, if the individual images of the subject viewed from different directions by 0.3 degrees are photographed within the 30 degree viewing zone angle, the recorded image is obtained. Will be 101,
Further, if the individual images of the subject viewed from different directions by 0.5 degrees are photographed within the viewing angle of 30 degrees, the number of recorded images becomes 61.

The description given so far with reference to FIG. 8 has been made on the case where the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses is a cylindrical convex lens array plate 4, but a plurality of lenses are arranged. When the fly-eye lens plate 4 is used as the stereoscopic image recording lens plate 4 in which the lenses are arranged, as in the case of the cylindrical convex lens array plate 4 described above with reference to FIG. A subject obtained when the fly-eye lens plate is rotated by a predetermined angle about the vertical axis shown as the Y axis by a predetermined angle, and the object is photographed by the monocular camera at the above-mentioned angle for each angle. An image similar to the image of is displayed on the active matrix liquid crystal display element provided in the projector 3, and the image projected from the projector 3 and the image projected from the projector 3 are Is imaged on the eye lens plate 4 and recorded on photosensitive recording medium 5 is performed by repeating the recording operation of.

Then, the fly's eye lens plate is rotated by a predetermined angle with a horizontal axis shown as an X axis in FIG. An image similar to the image of the subject obtained when the subject is photographed is displayed on the active matrix liquid crystal display element provided in the projector 3, and the image projected from the projector 3 is used as the fly-eye lens plate 4 The recording operation of forming an image on the photosensitive recording medium 5 and recording on the photosensitive recording medium 5 is repeated.

Now, the image projected from the projector 3 as described above is focused on the three-dimensional image recording lens plate 4 (cylindrical convex lens array plate 4, fly-eye lens plate 4) formed by arranging a plurality of lenses. When the image is recorded on the photosensitive recording medium 5 arranged on the surface, the recording state of the image on the photosensitive recording medium 5 is represented by the pixel as shown in FIG. 6A. In this case, there is a dark portion between the two, and when a stereoscopic image is reproduced, only a low-quality stereoscopic image can be obtained due to the interference fringes as described above.

Therefore, in the stereoscopic image recording apparatus of the present invention,
For each individual image projected from the projector 3 and formed on the photosensitive recording medium 5 through the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged, pixels are relatively arranged at the pixel pitch Pg. A predetermined number of identical images that are shifted by half of the above are recorded on the photosensitive recording medium 5 so that interference fringes do not occur.

First, FIG. 6 (b) shows that the stereoscopic image recording apparatus of the present invention uses the image projected from the projector 3 as a stereoscopic image recording lens plate 4 in which a plurality of lenses are arranged. 6A, when configured as a configuration mode in which an image is formed on the photosensitive recording medium 5 arranged on the focal plane of the cylindrical convex lens array plate 4 for recording. The same image as the image recorded on the photosensitive recording medium 5 in this state is recorded again on the photosensitive recording medium 5 in a state where the pixels are relatively shifted in the X direction by half the pixel pitch Pg. This is a modeled illustration of the state.

FIG. 6C shows that the stereoscopic image recording apparatus of the present invention uses the image projected from the projector 3 as a stereoscopic image recording lens plate 4 in which a plurality of lenses are arranged. 6A when configured as a configuration mode in which an image is recorded on the photosensitive recording medium 5 arranged on the focal plane of the fly-eye lens plate 4 for recording. The same image as the image recorded on the photosensitive recording medium 5 in this state is recorded again on the photosensitive recording medium 5 in a state where the pixels are relatively shifted in the X direction by half the pixel pitch Pg. At the same time, the same image as the image recorded on the photosensitive recording medium 5 in the recording state as shown in FIG. 6A is relatively shifted in the Y direction in the drawing by half the pixel pitch Pg. Re-record on the photosensitive recording medium 5 as a state It illustrates the state in which modeled.

One specific image projected from the projector 3 is focused on a lens plate 4 for stereoscopic image recording (cylindrical convex lens array plate 4, fly's eye lens plate 4) formed by arranging a plurality of lenses. The photosensitive recording medium 5 placed on the surface of the photosensitive recording medium 5 as modeled in FIG.
That is, after performing the above-described recording operation for recording in a state where a dark portion exists between pixels, the above-mentioned 1
A stereoscopic image recording lens plate 4 (cylindrical convex lens array plate 4, fly-eye lens plate 4) formed by projecting a specific image from the projector 3 and arranging a plurality of lenses.
As illustrated in FIGS. 6B and 6C, the photosensitive recording medium 5 arranged on the focal plane of the pixel is subjected to pixel shift (pixel shift) of half the pixel pitch Pg. The recording operation for recording in the recording mode is performed by a projector 3 and a lens plate 4 for three-dimensional image recording (cylindrical convex lens array plate) in which a plurality of lenses with the photosensitive recording medium 5 mounted are arranged. 4. Flyfly's eye lens plate 4) is relatively moved (displaced) in the X-axis direction by a predetermined amount (in the case of the cylindrical convex lens array plate 4), or in both the X-axis direction and the Y-axis direction. In addition to the relative movement (displacement) of a predetermined amount (in the case of the fly's-eye lens plate 4), the stereoscopic image recording is made by arranging a plurality of lenses projected from the projector 3. Lens plate 4 For each individual image formed on the photosensitive recording medium 5 via the same, a plurality of identical images of a predetermined number in the state where the pixels are relatively shifted by half the pixel pitch are the above-mentioned photosensitive recording. As recorded on medium 5,
For example, as illustrated in FIG. 3, the recording operation may be performed by drivingly displacing the optical member arranged in the optical path on which the image is projected.

In the recording operation in which the pixels are shifted by half the pixel pitch Pg, the recording of each image on the photosensitive recording medium 5 from a plurality of predetermined directions is performed as shown in FIG.
After recording on the photosensitive recording medium 5 in the recording state as shown in (a), recording of each image from the predetermined plurality of directions is performed again on the photosensitive recording medium 5 with the pixel pitch Pg. Even if it is performed in a state in which the pixels are shifted by half, or a specific image from one specific direction in recording each image from a plurality of predetermined plural directions is recorded on the photosensitive recording medium 5. After recording on the photosensitive recording medium 5 in the recording state as shown in FIG. 6A, the image recording is performed on the photosensitive recording medium 5 by shifting the pixel by half the pixel pitch Pg. It may be performed in the state in which it has been performed. In addition, the hatched portion in FIG. 6 indicates a dark portion. FIG. 5 shows the pixel pitch Pg described above.
FIG. 7 is a diagram illustrating and explaining that a dark portion is not recorded between pixels recorded on the photosensitive recording medium 5 by performing pixel shift of half of the above.

Next, a description will be given of a concrete configuration example applicable to the configuration portion used when shifting the pixel by half the pixel pitch Pg. FIG. 2A shows an active matrix liquid crystal display element 2 provided in the projector 3 with a pixel shift of half the pixel pitch Pg.
3 shows a configuration example in which 3 is displaced in a predetermined direction (X-axis direction in the illustrated example) by a distance Pg / 2 which is half the pixel pitch Pg. Reference numeral 24 is a fixed portion of the projector 3, and a stopper 25 is fixed to the fixed portion 24. Active matrix liquid crystal display element 23
Has its upper edge 23u slidably supported by being guided in the groove of the guide member 29, and the upper edge 23d of the active matrix liquid crystal display element 23 in the groove of the guide member 30. It is guided and slidably supported. One end portion of each of the guide members 29 and 30 described above (the left end portion not shown in the drawing) is fixed to a fixed portion of the projector 3 not shown.

The active matrix liquid crystal display element 23 is connected to the fixed portion of the projector 3 (not shown) at the other end of a spring 27 having one end attached thereto.
Is always urged in the direction of arrow F in the figure. A protruding piece 26 is fixed to the upper part of the active matrix liquid crystal display element 23. 28 is the projector 3
Is a plunger 28 fixed to the fixed portion 24 of the plunger 28, and 28a is an operating rod of the plunger 28. The actuating rod 28a of the plunger 28 includes a protrusion piece 26 provided on the active matrix liquid crystal display element 23 when the operating power is supplied to the plunger 28.
An operation is performed so as to project so as to be in contact with 5.

With respect to the plunger 28 described above,
The operating rod 28a of the plunger 28 in the state in which the operating power is not supplied is the projecting piece 26 attached to the active matrix liquid crystal display element 23 which moves in the direction of arrow F in the figure by the urging of the spring 27. When pressed, it retreats to the home position and stops. Then, as described above, the operating rod 28a of the plunger 28 in the state where the plunger 28 is stopped at the home position,
When the protruding piece 26 provided on the active matrix liquid crystal display element 23 is in contact, the distance between the facing surfaces of the protruding piece 26 and the stopper 25 is 1/2 of the pixel pitch Pg described above. It is said that

That is, the fixed portion 24 of the projector 3
The stopper 25 and the plunger 28 are attached to the home position of the plunger 2 at the home position in the state where the operating power is not supplied to the plunger 28.
When the protruding piece 26 attached to the active matrix liquid crystal display element 23 is in contact with the operating rod 28a of No. 8, the protruding piece 26 and the stopper 25 provided on the active matrix liquid crystal display element 23 The distance between the facing surfaces is set in advance to be 1/2 of the pixel pitch Pg.

The above-mentioned FIG. 2A relates to an example of the structure in which the active matrix liquid crystal display element 23 is driven and displaced by 1/2 of the pixel pitch Pg in the X-axis direction. In the configuration example of, the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged,
The present invention is applied to a stereoscopic image recording apparatus configured using the cylindrical convex lens array plate 4. By the way, in the three-dimensional image recording apparatus configured by using the fly-eye lens plate 4 as the three-dimensional image recording lens plate 4,
As described above, the active matrix liquid crystal display element 23
Is driven and displaced by ½ of the pixel pitch Pg in the X-axis direction, and the active matrix liquid crystal display element 23 is also moved in the Y-axis direction by the pixel pitch Pg.
A drive displacement of 1/2 g is required.

FIG. 2B shows that the active matrix liquid crystal display element 23 can be driven and displaced by ½ of the pixel pitch Pg in both the X-axis direction and the Y-direction so that stereoscopic image recording can be performed. As the lens plate 4 for use, a schematic configuration of a configuration mode applicable to a stereoscopic image recording apparatus configured by using the fly's eye lens plate 4 is shown. In FIG. 2B, 37 is a fixed portion of the projector 3, and the fixed portion 37 has a stopper 35.
Is stuck. Reference numerals 29 and 30 are guide members corresponding to the guide members 29 and 30 shown in FIG. The active matrix liquid crystal display element 23 is shown in FIG.
In the same manner as described in (a) above, the guide members 29 and 30 are slidably supported in the grooves. 2B, as shown in FIG. 2A for driving and displacing the active matrix liquid crystal display element 23 in the X-axis direction by ½ of the pixel pitch Pg. The illustration and description of the constituent parts are omitted.

In FIG. 2B, one end portion of each of the guide members 29 and 30 is described as [a left end portion (not shown in the drawing) in the description related to FIG. 2A). The end portion on the opposite side] is fixed to the support plate 31. The support plate 31 has edges 31a and 31b on both sides thereof,
The guide members 32 and 33 are slidably guided and displaceable in the grooves. The support plate 31 is connected with the other end of a spring 36, one end of which is attached to a fixed part of the projector 3 (not shown), and the support plate 31 is always provided with an arrow Y in the figure. Biased in the direction. A protruding piece 34 is fixed to the upper portion of the support plate 31. Reference numeral 38 is a plunger 38 fixed to the fixed portion 37 of the projector 3, and 38 a is an operating rod of the plunger 38. The operating rod 38a of the plunger 38 is configured to project so that the projecting piece 34 provided on the support plate 31 is in contact with the stopper 35 when the operating power is supplied to the plunger 38. Take action.

Further, with respect to the plunger 38 described above,
The operating rod 38a of the plunger 38 in the state in which the operating power is not supplied is pushed by the projecting piece 34 attached to the support plate 31 which moves in the arrow Y direction in the drawing by the urging of the spring 36 described above. , Back to the home position and stop. Then, as described above, when the projecting piece 34 provided on the support plate 31 is in contact with the operating rod 38a of the plunger 38 in the state where the projecting piece 34 is stopped at the home position, the projecting piece 34 described above is contacted. The distance between the facing surfaces of the stopper 35 and the stopper 35 is 1/2 of the pixel pitch Pg described above.

That is, the fixed portion 37 of the projector 3
The stopper 35 and the plunger 38 are attached to the home position of the plunger 3 at the home position in the state where the operating power is not supplied to the plunger 38.
When the protruding piece 34 attached to the support plate 31 is in contact with the operating rod 38a of FIG. Is set in advance to be 1/2 of the pixel pitch Pg.

Next, FIGS. 3A and 3B are projected onto the photosensitive recording medium 5 through the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses projected from the projector 3. For each individual image to be imaged, a plurality of the same number of identical images in which the pixels are relatively shifted by half the pixel pitch are recorded on the photosensitive recording medium 5. An example of the configuration in which the recording operation is performed by drivingly displacing the optical member 39 arranged in the optical path on which the image is projected is shown. The optical member 39 provided in the optical path whose medium is air has a refractive index different from that of air and is transparent in the wavelength range of light used for image projection. (For example,
A parallel plate made of optical glass or acrylic resin is used. As a matter of course, a substance having a birefringence characteristic cannot be used.

FIG. 3C shows an optical member 39 having a plate thickness t.
The distance d between the position of the incident light on and the position of the emitted light depends on the plate thickness d of the optical member 39 and the refraction angle i ′. D = t · tani ′ (1) According to the formula (1) above. It is for explaining what is shown. The refraction angle i ′ in the above formula (1) is the incident angle of the incident light on the optical member 39, the refractive index of the optical member 39 is n ′, the medium of the optical path of the incident light on the optical member 39. Where n is the refractive index of the medium and the refractive index of the medium in the optical path of the light emitted from the optical member 39 is expressed by the following equation (2).

[0061]

[Equation 1]

As is clear from the above equations (1) and (2), the optical member 39 is rotated about the Y axis as
The change in the refraction angle i ′ by changing the incident angle i of the incident light on the optical member 39 changes the distance d between the position of the incident light on the optical member 39 and the position of the emitted light. Therefore, by rotating the optical member 39 so that the distance d between the position of the incident light on the optical member 39 and the position of the emitted light is 1/2 of the pixel pitch Pg, the optical member 39 is rotated. Of the projection image incident on the optical element 39 and the projection image emitted from the optical member 39 at a pixel pitch Pg of 1 in the X-axis direction.
It can be moved by / 2.

In FIG. 3A, a pixel shifting mechanism including the above-mentioned optical member 39 is provided in the optical path from the active matrix liquid crystal display element 23 in the projector 3 to the projection lens system. 3B shows an example of the configuration in the case of the above, and FIG. An example of the configuration in the case where the pixel shifting mechanism configured to include the optical member 39 is provided is shown.

In FIGS. 3 (a) and 3 (b), the optical member 39 attached to the rotary shaft 40 provided in the Y-axis direction has the rotary shaft 40 provided in the Y-axis direction. It is possible to perform rotation operations around the rotation center. 41 is a stopper, 42 is a spring, 43 is a plunger, and 43a is an operating rod of the plunger. The stopper 41 shown in FIG. 3A is fixed to the fixed portion of the projector 3, and the stopper 41 shown in FIG.
Are fixed to an active matrix liquid crystal display element 23 fixedly provided in the projector 3.

One end of the spring 42 is fixed to the optical member 39. The other end of the spring 42 is fixed to a fixed portion of the projector 3 not shown. Therefore, the optical member 39 is connected to the spring 4 described above.
By 2 it is always urged to be pressed against the stopper 41. The plunger 43 is fixed to a fixed portion of the projector 3, and the operating rod 43a of the plunger 43 performs a projecting operation when the operating power is supplied to the plunger 43, and an optical member is provided at a tip portion thereof. By pushing 39, the optical member 39 is rotated about the rotation shaft 40 until the optical member 39 comes into contact with the stopper 41. The operating rod 44a of the plunger 44 in the state in which the operating power is not supplied to the plunger 44 is in the state of being rotated toward the operating rod 44a of the plunger 44 by the urging by the spring 42. It is pushed by the optical member 39 and retracts to the home position.

In FIGS. 3A and 3B, the projection which is incident on the optical member 39 by rotating the optical member 39 by a predetermined angle by the rotating shaft 40 provided in the Y-axis direction. Since the image and the projected image emitted from the optical member 39 are configured to be moved by ½ of the pixel pitch Pg in the X-axis direction, the above configuration example has a plurality of lenses arranged. 3D image recording lens plate 4
The present invention is applied to a stereoscopic image recording device configured by using the cylindrical convex lens array plate 4. In the stereoscopic image recording apparatus configured by using the fly-eye lens plate 4 as the stereoscopic image recording lens plate 4,
The projection image incident on the optical member 39 and the projection image emitted from the optical member 39 are rotated by rotating the optical member 39 by a predetermined angle by a rotation shaft 40 provided in the Y-axis direction.
The projection is made to move in the X-axis direction by ½ of the pixel pitch Pg, and the optical member 39 is rotated by a predetermined angle by a rotation shaft provided in the X-axis direction to be incident on the optical member 39. It is necessary to move the image and the projected image emitted from the optical member 39 by ½ of the pixel pitch Pg in the Y-axis direction.

Therefore, in the three-dimensional image recording apparatus constructed by using the fly's eye lens plate 4 as the three-dimensional image recording lens plate 4, as described above with reference to FIG. The optical member is rotated by a predetermined angle by a rotation shaft provided in the Y-axis direction, so that the pixel pitch Pg is 1 in the X-axis direction.
The projection image emitted from the optical member 39 in the pixel shifting mechanism configured to be movable by 1/2 is rotated by a predetermined angle by a rotation shaft provided in the X-axis direction, and the The projection image incident on the member and the projection image emitted from the optical member 39 are supplied to a pixel shifting mechanism configured to be movable in the Y-axis direction by 1/2 of the pixel pitch Pg. Alternatively, or as described above with reference to FIG. 3B, the optical member is rotated by a predetermined angle by the rotation shaft provided in the Y-axis direction, and the pixel pitch Pg in the X-axis direction is changed. 1 /
The projection image emitted from the optical member 39 in the pixel shifting mechanism configured to be movable by 2 is rotated by a predetermined angle by the rotation shaft provided in the X-axis direction to rotate the optical member. It is possible to supply the projection image that is incident on the projection image and the projection image that is output from the optical member to a pixel shift mechanism that is configured to be movable in the Y-axis direction by 1/2 of the pixel pitch Pg. Good.

As described above, the projection image that is incident on the optical member 39 and the projection image that is emitted from the optical member 39 by rotating the optical member by a predetermined angle by the rotation axis provided in the X-axis direction. And 1/2 in the Y-axis direction of the pixel pitch Pg
The pixel shifting mechanism configured so that it can be moved only by the above is a configuration mode in which the pixel shifting mechanism described above with reference to FIGS. 3A and 3B is rotated by 90 degrees. The detailed description is omitted.

Regarding the pixel shifting mechanism in the stereoscopic image recording apparatus configured by using the fly's eye lens plate 4 as the stereoscopic image recording lens plate 4 composed of a plurality of lenses, the configuration modes described so far are A pixel configured such that the optical member can be rotated in the optical path of an image by a predetermined angle by a rotation shaft provided in the Y-axis direction and can be moved by 1/2 of the pixel pitch Pg in the X-axis direction. The displacement mechanism and the rotation shaft provided in the X-axis direction rotate the optical member by a predetermined angle, and a projection image incident on the optical member and a projection image emitted from the optical member are displayed in the Y-axis direction. The pixel shift mechanism configured to be movable by 1/2 of the pixel pitch Pg is arranged in series in the optical path of the projected image, but as described above, Member is Y-axis Is rotated by a predetermined angle by the rotation shaft provided in the direction, the pixel pitch Pg in the X-axis direction 1 /
A pixel shift mechanism configured to be movable by 2 and a projection image incident on the optical member 39 by rotating the optical member by a predetermined angle by a rotation shaft provided in the X-axis direction; The pixel shift mechanism configured to be able to move the projected image emitted from the member 39 in the Y-axis direction by ½ of the pixel pitch Pg is a pixel shift mechanism of the same configuration, which is only 90 degrees. Since the configuration is in a rotated state, one pixel provided in the optical path of the projection image is not provided in series with the two pixel shifting mechanisms as described above, as described above. If the entire pixel shifting mechanism is configured to be rotatable by 90 degrees, even in a stereoscopic image recording apparatus configured by using the fly eye lens plate 4 as the stereoscopic image recording lens plate 4, Pixel shift Only by providing a structure, both the pixel shift operation of the pixel pitch Pg in the X-axis direction and the pixel shift operation of the pixel pitch Pg in the Y-axis direction are performed. You can

As is clear from the above description, in the stereoscopic image recording apparatus of the present invention, the image is projected from the projector 3 to the photosensitive recording medium 5 via the stereoscopic image recording lens plate 4 composed of a plurality of lenses. The recorded stereoscopic image is
Since there is no dark portion between pixels due to the pixel shift, interference fringes may occur in the stereoscopic image reproduced from the recorded photosensitive recording medium recorded by the stereoscopic image recording apparatus of the present invention. And a good stereoscopic image can be reproduced.

By the way, as a projector used for projecting the above-mentioned projection image, a projection lens having a large effective aperture is used in order to obtain a bright projection image. Since a widened image is formed on the photosensitive recording medium 5 arranged on the focal plane of the stereoscopic image recording lens plate 4 in which a plurality of lenses in the recording apparatus are arranged, information of a stereoscopic image with high resolution is obtained. Is difficult to record. Therefore, in another embodiment of the stereoscopic image recording apparatus of the present invention, a diaphragm is provided in the projection lens system of the projector so that a stereoscopic image with high resolution can be obtained.

First, the configuration principle and embodiment of another embodiment of the stereoscopic image recording apparatus of the present invention in which a projection lens system of a projector is provided with a diaphragm so that a stereoscopic image with high resolution can be obtained will be described in sequence. . As described above, the image projected from the projector 3 is arranged on the focal plane of the three-dimensional image recording lens plate 4 (cylindrical convex lens array plate 4, fly's eye lens plate 4) in which a plurality of lenses are arranged. When the image is recorded on the photosensitive recording medium 5 and recorded, the recording state of the image on the photosensitive recording medium 5 will be described with reference to FIG. In FIG. 9A, φD is an effective aperture of the projection lens system of the projector 3, and L is a stereoscopic image recording lens plate 4 (cylindrical) formed by arranging a plurality of lenses from the exit pupil of the projection lens system of the projector 3. Assuming the recording distance to the focal planes of the lenses of the convex lens array plate 4 and the fly-eye lens plate 4), the angle directivity β is represented by β = φD / L (3) Equation (3).

The angle directivity β is the recording distance L from the exit pupil of the projection lens system 6 of the projector 3 to the focal plane of the lens of the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses. When is constant, it can be understood from the above formula (3) that the larger the effective diameter φD of the projection lens system of the projector 3, the larger. The angle directivity β
Is large, the divergence of the image is increased because the divergence angle of the light beam from the light source becomes large, as illustrated in FIG. 9B which is an enlarged view of a part of FIG. 9A. Occurs, and as a result, the resolution is lowered and blurring occurs. Further, from the exit pupil of the projection lens system 6 of the projector 3 to the focal plane of the lens of the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged with the effective diameter φD of the projection lens system of the projector 3 being constant. The angle directivity β can be reduced by increasing the recording distance L of 1. However, if the recording distance L is different from the distance from the exit pupil of the photographing lens of the monocular camera to the subject at the time of photographing, the original image is I can't reproduce it.

FIG. 9C shows the angle directivity β described above.
FIG. 6 is a diagram for explaining the relationship between the projector distance and the projector interval d. In order to minimize the influence of the spread of the angle directivity β due to the effective aperture φD of the projection lens system of the projector 3, the following is provided between the projector interval d and the effective aperture φD of the projection lens system of the projector 3. The relationship of equation (4) is required. d ≧ φD (4) Then, when the relationship of the above expression (4) is established, the maximum number of printable images N is obtained by the following expression (3). N = (π · L · Ψ / 180 · d) +1 (5) (where Ψ is the viewing angle determined by the configuration of the stereoscopic image recording lens plate 4 in which a plurality of lenses are arranged)

Therefore, it can be understood from the equation (5) that the number N of sheets that can be recorded while minimizing the influence of the angle directivity β is determined by the effective aperture φD of the projection lens system of the projector 3. Now, the viewing angle Ψ determined by the configuration of the stereoscopic image recording lens plate 4 used in the stereoscopic image recording apparatus is set to 30 degrees, and a plurality of lenses are arranged from the exit pupil of the projection lens system 6 of the projector 3. The distance L to the focal plane of the lens of the stereoscopic image recording lens plate 4 is 600 mm, and the effective aperture φD of the projection lens system of the projector 3 is usually 30 mm.
Since it is about 30 mm, the projector distance d is set to 3 mm.
When the maximum number of printable sheets N is calculated from the above equation (5) with 0 mm, the maximum number of sheets is obtained as 11 to 12. As described above, the stereoscopic image recording lens plate 4 having the viewing angle Ψ of 30 degrees is used, and the ordinary projector having the effective diameter φD of the projection lens system of 30 mm is used.
When recording the maximum number of recorded images of 11 to 12, the angular interval between successive images is 2.7 degrees, but with this, the jumps in the images are very noticeable, and only unnatural stereoscopic images can be reproduced. . In addition, a reduction in resolution per image cannot be prevented, resulting in a low-quality stereoscopic image.

FIG. 10A shows a stereoscopic image recording apparatus of the present invention in which a diaphragm 7 is provided in the projection lens system 6 of the projector 3, and an image projected from the projector 3 is arranged with a plurality of lenses. Photosensitive recording in the case where the image is recorded on the photosensitive recording medium 5 arranged on the focal plane of the lens plate 4 for three-dimensional image recording (the cylindrical convex lens array plate 4 and the fly's eye lens plate 4) Medium 5
FIG. 6 is a diagram illustrating and describing a recording state of an image for the image.
In FIG. 10A, φD is the effective aperture of the projection lens system of the projector 3, φDi is the effective aperture of the apparent projection lens system when the diaphragm 7 is provided in the projection lens system 6 of the projector 3, and L is the projector. The recording distance from the exit pupil of the projection lens system of No. 3 to the focal plane of the lens of the stereoscopic image recording lens plate 4 (cylindrical convex lens array plate 4 and fly-eye lens plate 4) in which a plurality of lenses are arranged. is there.

As shown in FIG. 10A, the projector 3
If a diaphragm 7 is provided in the projection lens system 6 of the projector 3, the actual effective aperture of the projection lens system of the projector 3 becomes
The effective aperture of the projection lens system 6 of the projector 3 when the diaphragm 7 is not provided in the projection lens system 6 of
It has a small apparent diameter φDi of the projection lens system.
Under the condition that the recording distance L to the focal plane of the lens of the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged is constant, the effective aperture of the projection lens system 6 of the projector 3 is φD. To φDi / φD = 1 / α, the angle directivity β shown in the equation (3) when the effective aperture is φDi is 1 / α of the angle directivity when the effective aperture is φD. Becomes

When a diaphragm 7 is provided in the projection lens system 6 of the projector 3 as shown in FIG. 10B in which a part of FIG. As compared with the case where the diaphragm 7 is not provided in the projection lens system 6, the spread angle of the light beam from the light source becomes smaller, so that the spread of the image becomes smaller, and as a result, the resolution is improved.
Therefore, as illustrated in FIG. 10C, the projector 3 has a smaller distance than the projector distance d when the diaphragm 7 is not provided in the projection lens system 6 of the projector 3.
By providing the diaphragm 7 in the projection lens system 6 of, the effective aperture is φD to φDi / φD = 1 / α.
It becomes easy to set the project interval di when the effective diameter of Di is set as di = d / α,
It is possible to record many images, and to "skip" the images.
It is possible to eliminate the occurrence of the occurrence of an image, facilitate the reproduction of a natural three-dimensional image, and improve the resolution per image to obtain a high-quality three-dimensional image.

As is clear from the above description, there is a close relationship between the number N of recorded images and the effective aperture φD (and φDi) of the projection lens system 6 of the projector 3. By modifying the above equation (5), the following equation (6) for obtaining the effective aperture φD of the projection lens system 6 of the projector 3 is obtained. φD = (π · L · Ψ / 180 · N) and φDi = (π · L · Ψ / 180 · N) (6) For example, depending on the configuration of the stereoscopic image recording lens plate 4 used in the stereoscopic image recording apparatus. Set the viewing angle Ψ to be 30 degrees,
When the recording distance L from the exit pupil of the projection lens system 6 of the projector 3 to the focal plane of the lens of the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses is 600 mm and the number of recorded images is 101 The effective aperture diameter φDi of the projection lens system 6 of the projector 3 required for the above is about 3 mm, and the projection lens system 6 of the projector 3 required when the number of recorded images is 61.
When the effective diameter φDi of is calculated from the above equation, it is about 5 mm.

When the diaphragm 7 is provided in the projection lens system 6 of the projector 3 as described above, the angular directivity β can be reduced, so that a high resolution stereoscopic image can be recorded easily. A photosensitive recording medium 5 installed on the focal plane of a lens plate 4 for stereoscopic image recording, in which lenses are arranged.
In some cases, as illustrated in FIG. 11A, the recording mode may be a state in which the recording areas 5a and the unrecorded areas 5b are arranged at a substantially constant pitch.
When the above-described recording mode occurs, the number of recorded images N
And the projector aperture φDi is not related to the above equation (6), and recording is performed using a smaller projector aperture than the projector aperture φDi of the equation (6) obtained from the number N of recorded images. By the way, as shown in FIG. 11A, recording on the recorded photosensitive recording medium 5 in a recording mode in which the recording areas 5a and the unrecorded areas 5b are arranged at substantially constant pitches. When reproducing light is irradiated from the side of the completed recording medium as shown in FIG. 11B, the above-mentioned unrecorded areas 5b, 5b ... Are converted into reproducing light because they act as the first slits. Diffraction occurs.

The above-mentioned diffracted light is diffracted by the lens pitch in the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses, resulting in interference fringes. The above-mentioned state corresponds to the occurrence of diffraction caused by two slits, which is generally known, and although a stereoscopic image can be observed, interference fringes are also observed at the same time, which is an extremely dirty stereoscopic image. Only that can be observed. Therefore, in the three-dimensional image recording apparatus of the present invention, the effective aperture φDi of the projection lens system 6 of the projector 3 is adjusted by the diaphragm 7 so that the relationship of the above-mentioned expression (6) is always established, and a plurality of pluralities are obtained. As illustrated in FIG. 11A, only the recording area 5a is formed on the photosensitive recording medium 5 placed on the focal plane of the stereoscopic image recording lens plate 4 in which the lenses are arranged. The unrecorded area 5b is not generated. As the diaphragm 7 provided in the projection lens system 6 of the projector 3 described above, a variable diaphragm is used so that it can be easily adjusted to an optimum diaphragm aperture that can satisfy the formula (6). It is effective. By using the variable aperture as described above, it is possible to easily record a stereoscopic image with optimum quality even with stereoscopic image data having different numbers of recorded images.

FIG. 12 is a view exemplifying the diaphragm 7 provided in the projection lens system of the projector 3, and FIG. 12A shows the circular diaphragm 7 having a diameter of Di, and FIG. (B) shows a diaphragm 7 having a lateral length Di and a length in the direction parallel to the cylindrical axis of the cylindrical / convex lens that is larger than the above-mentioned Di. A circular diaphragm 7 having a diameter of Di shown in FIG.
Is a case in which the three-dimensional image recording lens plate 4 used in the three-dimensional image recording device is a fly-eye lens plate 4 and a cylindrical convex lens array plate 4
In any of the above cases, it can be used as the diaphragm 7 provided in the projection lens system of the projector 3.

However, the elongated aperture stop 7 as shown in FIG. 12B has a three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses used in a three-dimensional image recording apparatus. , Cylindrical convex lens array plate 4 can be used only. That is, the individual lenses that constitute the fly-eye lens plate 4 have a lens action in any direction around the optical axis, and the fly-eye lens plate 4 also has a stereoscopic effect in the vertical direction of the lens plate. Since the image information is recorded, only the circular diaphragm 7 as shown in FIG. 12A can be used as the diaphragm 7 to be used in the incident optical path to the fly-eye lens plate 4. . On the other hand, since the cylindrical convex lens does not exhibit a lens action in its cylindrical axis direction, the diaphragm 7 to be used in the incident optical path to the cylindrical convex lens array plate 4 is parallel to the cylindrical convex lens direction. An elongated aperture stop 7 as shown in FIG. 12 (b), which is long in any direction, can also be used. Since the aperture stop 7 having a long hole shape as shown in FIG. 12B has a larger opening area than the circular aperture stop 7 shown in FIG. The amount of light emitted from 7 is also large, so a bright image can be projected and the recording time can be shortened. The elongated aperture stop 7 has an oval shape as shown in FIG. 12 (b) which is long in a direction parallel to the cylindrical axis direction of the cylindrical convex lens from a circular front shape. It can be implemented as an arbitrary shape within the range up to the state.

By the way, although the stereoscopic photograph is a still image, in terms of the evaluation of the image quality of the still image and the moving image, it is generally said that the evaluation of the image quality of the still image is more severe than the evaluation of the image quality of the moving image. Tend. And
As one of the image quality evaluation criteria, attention is paid to the brightness distribution in the image, and the image quality is evaluated based on whether the flatness of the brightness distribution in the image is good or bad. In the projector, the flatness of the brightness distribution in the image is generally a numerical value defined by the ambient illuminance ratio. The peripheral illuminance ratio is the ratio of the peripheral illuminance to the illuminance at the center of the projected image, and the larger the numerical value, the more uniform the brightness of the projected image.

The peripheral illuminance ratio in a general projector is about 70% to 85%, and the projectors having a peripheral illuminance ratio of 85% or more are very few and expensive. In projectors, the peripheral illuminance ratio is being improved, but in the present situation, there is intense competition in development for improving the projection brightness in projectors. A long time ago, it was common to see the projected image of the projector in a dark room, but recently, it has become common to see the projected image of the projector in a bright room to some extent, and it is used for presentation purposes. In the projector for personal computer input of (1), since it is assumed that the projector is used in a completely bright room, the higher brightness of the projected image tends to be prioritized over the peripheral illuminance ratio.

When the image projected from the projector is a plane image, the ambient illuminance ratio in the state where the higher brightness of the projected image is prioritized as described above does not matter so much. When a stereoscopic image is recorded as an image to be projected, a stereoscopic image having a bright central portion and a slightly dark peripheral portion is obtained, and thus only a stereoscopic image having an unnatural feeling can be obtained. Therefore, in the three-dimensional image recording apparatus of the present invention, in order to make the flatness of the luminance distribution in the image favorable and to record a high-quality three-dimensional image, the three-dimensional image is recorded between the light source in the projector 3 and the projection image. A diffusing plate is provided to improve the flatness of the brightness distribution in the projected image.

When the diffusion plate is provided between the light source of the projector 3 and the projection image as described above, the amount of light supplied to the projection image is naturally obtained by using the diffusion plate described above. And the projected image becomes darker. However, in the stereoscopic image recording apparatus of the present invention, unlike the case of a general projector, it is more important that the flatness of the brightness distribution in the projected image is better than the brightness of the projected image is high. By using the diffusion plate as described above, the peripheral illuminance ratio can be set to 95%, and a stereoscopic image with high image quality can be easily recorded. In addition,
As described above, the decrease in the amount of light supplied to the projection image due to the use of the diffusion plate increases the projection time of the projected image on the photosensitive recording medium 5, increases the light amount of the light source, and reduces the amount of light emitted from the photosensitive recording medium 5. The problem can be solved by using a highly sensitive one.

Now, the projector 3 described so far
The recording operation in another embodiment of the stereoscopic image recording apparatus of the present invention, which is configured by providing the diaphragm 7 in the projection lens system, will be described with reference to FIG. 1 and FIG. The recording operation is performed in the same recording mode as described above. That is, when the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses is the cylindrical convex lens array plate 4, the cylindrical convex lens array plate 4 is inclined by + θ as shown in FIG. In this state, an image similar to the image obtained when the subject is photographed by the monocular camera is set on the projector 3 with the optical axis of the imaging lens of the monocular camera set to the direction of + θ degrees from the front of the subject. An image projected on the matrix liquid crystal display element and projected from the projector 3 is formed on the cylindrical convex lens array plate 4 to form the photosensitive recording medium 5.
After recording on, the cylindrical convex lens array plate 4
Is sequentially rotated in the clockwise direction (−θ direction) by the Y-axis turntable 11 by a predetermined angle about the Y-axis, and the state shown in (b) of FIG. After that, as shown in FIG. 8C, the cylindrical convex lens array plate 4 is tilted by −θ, but the cylindrical convex lens array plate 4 is sequentially rotated by a predetermined angle about the Y axis as a rotation center. Each time it is rotated, an image similar to a predetermined image among the images of the subject obtained when the subject is photographed by the monocular camera is displayed on the active matrix liquid crystal display element provided in the projector 3. It is displayed, projected from the projector 3, and imaged on the cylindrical convex lens array plate 4 to record it on the photosensitive recording medium 5.

When the fly-eye lens plate 4 is used as the three-dimensional image recording lens plate 4 in which a plurality of lenses are arranged, the cylindrical convex lens array plate described above with reference to FIG. 8 is used. As in the case of 4, the fly eye lens plate is rotated by a predetermined angle with the vertical axis shown as the Y axis as the rotation axis, and the subject is photographed by the monocular camera at the above-mentioned angle for each angle. An image similar to the image of the subject obtained at the time of shooting is displayed on the active matrix liquid crystal display element provided in the projector 3, and the image projected from the projector 3 is the image projected from the projector 3. The recording operation of forming an image on the fly-eye lens plate 4 and recording on the photosensitive recording medium 5 is repeated.

By the way, as described above, the image projected from the projector 3 is focused on the three-dimensional image recording lens plate 4 (cylindrical convex lens array plate 4, fly-eye lens plate 4) formed by arranging a plurality of lenses. When the image is recorded on the photosensitive recording medium 5 arranged on the surface, the recording state of the image on the photosensitive recording medium 5 is represented by the pixel as shown in FIG. 6A. Therefore, in the stereoscopic image recording apparatus of the present invention, the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses is projected from the projector 3 in the present invention. For each individual image formed on the photosensitive recording medium 5 via the same, a plurality of identical images of a predetermined number in which the pixels are relatively shifted by half the pixel pitch Pg Recorded on recording medium 5 In this way, preventing interference fringes is the same as that described with reference to FIGS. 2, 3 and 6 in the description of the above-described embodiment, and therefore a specific description will be given. Is omitted.

Now, when a stereoscopic image is reproduced from a recorded photosensitive recording medium on which a stereoscopic image is recorded by using the stereoscopic image recording device, the recorded photosensitive recording medium used for reproduction is A stereoscopic image reproducing lens plate having the same configuration as the stereoscopic image recording lens plate (flyfly eye lens plate, cylindrical convex lens / array plate) 4 formed by arranging a plurality of lenses used for recording a stereoscopic image (fly) Eye lens plate, cylindrical convex lens array plate), a prerecorded photosensitive recording medium on which a stereoscopic image to be reproduced is recorded, and the prerecorded photosensitive recording medium is irradiated by reproducing light. The stereoscopic image recorded in is reproduced.

However, as described above, when the stereoscopic image is reproduced from the recorded photosensitive recording medium, the recorded photosensitive recording medium and the lens plate for reproducing the stereoscopic image formed by arranging a plurality of lenses ( It is not easy to correctly set the mutual positional relationship between the fly-eye lens plate and the cylindrical convex lens / array plate), and in particular, the number of images recorded on the recorded photosensitive recording medium is large. In this case, it is extremely difficult to correctly set the mutual positional relationship between the recorded photosensitive recording medium and the stereoscopic image reproducing lens plate in which a plurality of lenses are arranged.

Therefore, in the stereoscopic image recording apparatus of the present invention,
As illustrated in FIGS. 7A and 7B, a stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses, such as a fly-eye lens plate or a cylindrical convex lens array plate,
A stereoscopic image is recorded by combining the positional relationship with the photosensitive recording medium 5 which should be detachably mounted on the stereoscopic image recording lens plate 4 formed by arranging the plurality of lenses, and by combining the both. Stereoscopic image reproduction in which a plurality of lenses are arranged like a fly-eye lens plate or a cylindrical convex lens array plate used when reproducing the stereoscopic image by mounting the recorded photosensitive recording medium 22 obtained Pre-recorded photosensitive recording medium 22 to be detachably attached to the lens plate 17 for use
The conventional problem is solved by providing a position regulating means having a configuration that allows the same positional relationship with the photosensitive recording medium 5 to be easily obtained.

A stereoscopic image recording lens plate 4 (fly-eye lens plate 4, cylindrical convex lens array plate 4) formed by arranging a plurality of lenses used in the recording operation shown in FIG. The stereoscopic image reproducing lens plate 17 (fly-eye lens plate 4, cylindrical convex lens array plate 4) in which a plurality of lenses used in the reproducing operation shown in FIG. The lens plates have exactly the same configuration. In the vicinity of one end of the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses used in the recording operation shown in FIG. Engaging pins 13 and 14 are provided in a protruding manner. Further, recording is carried out in combination with the above-mentioned three-dimensional image recording lens plate 4 having a plurality of lenses arranged in the focal plane of the three-dimensional image recording lens plate 4 having a plurality of lenses arranged therein. The photosensitive recording medium 5 used at times is provided with two engaging holes 15 and 1 at a predetermined distance K near one end thereof.
6 is provided.

Two engaging holes 15 and 16 which are formed near the one end of the photosensitive recording medium 5 with a predetermined distance K are provided for stereoscopic image recording in which a plurality of lenses described above are arranged. The hole diameter is such that it can be fitted to the two engaging pins 13 and 14 projecting near the one end of the lens plate 4 with a predetermined distance K without any play. . The recorded photosensitive recording medium 22 shown in FIG.
The photosensitive recording medium 5 shown in FIG. 7A is obtained by exposing the photosensitive recording medium 5 with the projected image information projected from the projector 3 and then performing a developing process.

Therefore, since the recorded photosensitive recording medium 22 is originally the photosensitive recording medium 5, a predetermined distance K is provided near one end of the recorded photosensitive recording medium 22. Two engagement holes 15 and 16 are formed at a distance from each other. The stereoscopic image reproducing lens plate 17 in which a plurality of lenses used during the reproducing operation shown in FIG. 7B are arranged is shown in FIG. 7A as described above. The stereoscopic image recording lens plate 4 having a plurality of lenses used during the recording operation has the same configuration as that of the stereoscopic image recording lens plate 4, and a predetermined distance K is provided near one end thereof. Two engagement pins 18 and 19 are provided so as to be separated from each other.

A predetermined distance K is provided near one end of the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses used in the recording operation shown in FIG. 7A. One of three-dimensional image reproducing lens plate 17 in which two engaging pins 13 and 14 projecting apart from each other and a plurality of lenses used in the reproducing operation shown in FIG. 7B are arranged. The two engaging pins 18 and 19 projecting at a predetermined distance K near the ends are the same in arrangement as the lens plates 4 and 17 which have the same configuration. It is provided in the form. Then, the recorded photosensitivity is recorded on the two engaging pins 18 and 19 projecting at a predetermined interval K near one end of the stereoscopic image reproducing lens plate 17 in which a plurality of lenses are arranged. Two engaging holes 15 and 16 formed at a predetermined distance K near one end of the functional recording medium 22.
The recorded photosensitive recording medium 22 is formed by arranging a plurality of lenses by simply fitting
On the other hand, it can be mounted accurately.

It should be noted that two engaging pins 1 projecting at a predetermined interval K are provided near one end of the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses used during the recording operation.
1 and 3 of the stereoscopic image reproducing lens plate 17 in which a plurality of lenses used during the recording operation are arranged.
As described above, the arrangement of the two engagement pins 18 and 19 projecting at a predetermined distance K near the end is exactly the same as described above. The position of the intermediate point of the predetermined interval K between the two engaging pins 13, 14, 18, and 19 of both of them is set to the above-mentioned two engaging pins 1.
3, 14, 18 and 19 are arranged so as to be displaced from the center position in the lateral direction of the lens plates 4 and 17 which are to be projected, respectively, and the two engaging pins 13 and 1 described above are provided.
When 4, 18, 19 are provided on the lens plates 5, 17, the photosensitive recording medium 5 and the recorded photosensitive recording medium 22 are recorded.
The photosensitive recording medium 5 and the recorded photosensitive recording medium 22 are simply attached to the lens plates 5 and 17 in the correct mounting state.
The photosensitive recording medium 5 and the recorded photosensitive recording medium 22 are mounted on the lens plates 5 and 17 in order to be mounted on the respective lens plates 5 and 17 in a state in which the front and back sides are automatically correct. In this case, it is possible to save the trouble of distinguishing between the front and back of the photosensitive recording medium 5 and the recorded photosensitive recording medium 22.

In the state where the recorded photosensitive recording medium 22 is combined with the stereoscopic image reproducing lens plate 17 in which a plurality of lenses are arranged as described above, the stereoscopic image observing device (viewer) is used. You can observe a stereoscopic image by attaching it to. As the stereoscopic image observation apparatus, for example, a peripheral portion of a state in which a recorded photosensitive recording medium 22 is combined with a stereoscopic image reproducing lens plate 17 in which a plurality of lenses described above are arranged is related. It is possible to use a member that is provided with a fitting member, a diffusion plate, and a light source in a container. Then, the recorded photosensitive recording medium 22 in a state in which the recorded photosensitive recording medium 22 is combined with the stereoscopic image reproducing lens plate 17 in which a plurality of lenses mounted in the stereoscopic image observation apparatus are arranged When illumination light emitted from a light source (for example, a fluorescent lamp) is supplied to the rear surface side through a diffusion plate, a stereoscopic image is generated within the viewing area on the front surface of the stereoscopic image reproducing lens plate 17 having a plurality of lenses arranged therein. Can be observed.

[0100]

As is clear from the above description, the stereoscopic image recording apparatus of the present invention has the projector 3
Since the three-dimensional image projected from the and recorded on the photosensitive recording medium through the three-dimensional image recording lens plate composed of a plurality of lenses is in a state where there is no dark portion between pixels due to pixel shifting, The stereoscopic image reproduced from the recorded photosensitive recording medium recorded by the stereoscopic image recording device of the present invention does not cause interference fringes, and a good stereoscopic image can be reproduced. Further, by providing the diaphragm in the projection lens system of the projector, it is possible to prevent the resolution of the recorded image from being lowered, and it is possible to increase the number of recorded images, so that so-called omission can be prevented and the number of recorded images can be reduced. Good recording operation can be performed under suitable conditions, and it is easy to eliminate moire due to interference between the recorded image and the lens pitch. Furthermore, recording operation suitable for different number of recorded images can be performed. In addition to being possible, the brightness distribution of the recorded image can be made uniform, and the recorded photosensitive recording medium on which the stereoscopic image is recorded by the stereoscopic recording device of the present invention is a stereoscopic image reproduction in which a plurality of lenses are arranged. It is easy to mount the lens plate for use quickly and accurately, and according to the present invention, the conventional problems can be solved well.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of an example of a stereoscopic image recording apparatus of the present invention.

FIG. 2 is a perspective view showing a schematic configuration of a part of the stereoscopic image recording apparatus of the present invention.

FIG. 3 is a perspective view showing a schematic configuration of a part of the stereoscopic image recording apparatus of the present invention.

FIG. 4 is a diagram for explaining a problem of the stereoscopic image recording apparatus.

FIG. 5 is a diagram for explaining the operation of the stereoscopic image recording apparatus of the present invention.

FIG. 6 is a diagram for explaining the operation of the stereoscopic image recording apparatus of the present invention.

FIG. 7 is a diagram for explaining an engaging means of a lens plate and a photosensitive recording medium.

FIG. 8 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 9 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 10 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 11 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 12 is a diagram showing a configuration example of a diaphragm.

FIG. 13 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 14 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 15 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

FIG. 16 is a diagram for explaining a recording operation of the stereoscopic image recording device.

[Explanation of symbols]

1 ... Subject, 2 ... Monocular camera, 3 ... Projector, 4 ...
Lens plate for stereoscopic image recording (a fly-eye lens plate, a cylindrical convex lens / array plate) in which a plurality of lenses are arranged, 5 ... Photosensitive recording medium, 6 ... Projection lens system, 7 ... Aperture, 13, 14, 18 , 19 ... Engaging pins, 15, 16 ...
Engagement holes, 17 ... Lens plate for reproducing a stereoscopic image (fly-eye lens plate, cylindrical convex lens / array plate) in which a plurality of lenses are arranged, 22 ... Recorded photosensitive recording medium, 23
... Active matrix liquid crystal display device, 25, 34, 4
1 ... Stopper, 26, 35 ... Projecting piece, 28, 38, 43
... Plunger, 29, 30, 32, 33 ... Guide member,
31 ... Support plate, 39 ... Optical member,

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-186833 (JP, A) JP-A-6-273864 (JP, A) JP-A-1-107246 (JP, A) JP-A-8- 15616 (JP, A) JP-A-8-320455 (JP, A) Special table Sho 59-500532 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03B 35/08 G02F 1 / 13 505 H04N 13/04

Claims (6)

(57) [Claims] 1. An individual straight line of a plurality of radial straight lines that equally divides an area set with the above-mentioned specific point as an apex in a plane including a specific point of an object, When shooting a subject as an axis, the image of the subject that should be obtained individually,
It is used as an image of each individual subject in an image of a plurality of subjects to be projected by the projector, and the optical axis of the image is taken in the direction of the optical axis of the photographing lens when each individual image of the image of the subject is captured. An image of each individual subject in the plurality of subject images described above is displayed by a projector having a projection lens whose direction is matched,
Stereoscopic image recording, such as a fly's-eye lens plate or a cylindrical convex lens / array plate, is designed to form an image on a photosensitive recording medium installed on the focal plane of a stereoscopic image recording lens plate composed of multiple lenses. In the apparatus, the pixel is relatively pixel-wise for each individual image projected from the projector and formed on the photosensitive recording medium through the stereoscopic image recording lens plate in which a plurality of lenses are arranged. A stereoscopic image recording apparatus comprising means for recording a predetermined number of identical images, which are shifted by half the pitch, on the photosensitive recording medium. 2. An individual straight line of a plurality of radial straight lines that equally divides a region set with the above-mentioned specific point as a vertex in a plane including a specific point on the subject, When shooting a subject as an axis, the image of the subject that should be obtained individually,
It is used as an image of each individual subject in an image of a plurality of subjects to be projected by the projector, and the optical axis of the image is taken in the direction of the optical axis of the photographing lens when each individual image of the image of the subject is captured. By using a projector having a projection lens that is aligned in the direction and has a diaphragm, the images of each individual subject in the above-described images of a plurality of subjects are converted into a fly-eye lens plate or a cylindrical convex lens array plate. In a three-dimensional image recording apparatus configured to form an image on a photosensitive recording medium installed on the focal plane of a three-dimensional image recording lens plate in which a plurality of lenses are arranged, a plurality of images are projected from the projector. The pixel is relatively different for each individual image formed on the photosensitive recording medium through the three-dimensional image recording lens plate in which the lenses are arranged. A plurality of identical images of a predetermined number of shifted state half the element pitch, the photosensitive stereoscopic image recording apparatus comprising a means to be recorded on the recording medium. 3. A stereoscopic image recording system in which an image displayed on an active matrix liquid crystal display element is projected from a projector, and the active matrix liquid crystal display element is driven and displaced to arrange a plurality of lenses. For each individual image formed on the photosensitive recording medium through the lens plate, a predetermined number of identical images are recorded with the pixels relatively shifted by half the pixel pitch. The stereoscopic image recording apparatus according to claim 1 or 2. 4. A pixel is a pixel relative to each individual image projected from a projector and formed on a photosensitive recording medium through a stereoscopic image recording lens plate in which a plurality of lenses are arranged. Driving displacement of the lens plate for stereoscopic image recording in which a plurality of lenses are arranged so that a predetermined number of the same images, which are shifted by half the pitch, are recorded on the photosensitive recording medium. The stereoscopic image recording apparatus according to claim 1 or 2, configured to do so. 5. A pixel is a pixel relative to each individual image projected from a projector and formed on a photosensitive recording medium through a stereoscopic image recording lens plate in which a plurality of lenses are arranged. Driving an optical member arranged in the optical path on which the image is projected so that a predetermined number of identical images, which are shifted by half the pitch, are recorded on the photosensitive recording medium. The stereoscopic image recording apparatus according to claim 1 or 2, wherein the stereoscopic image recording apparatus is configured to be displaced. 6. A stereoscopic image recording lens plate in which a plurality of lenses are arranged, such as a fly-eye lens plate or a cylindrical convex lens array plate, and a stereoscopic image recording in which a plurality of the lenses are arranged. The positional relationship with the photosensitive recording medium that should be detachably attached to the lens plate, and the recorded photosensitive recording medium obtained by recording the stereoscopic image by combining both of the above are attached to form the stereoscopic image. Pre-recorded photosensitivity that should be detachably attached to a lens plate for reproducing a stereoscopic image that is an array of multiple lenses, such as a fly's-eye lens plate or a cylindrical convex lens array plate used for reproduction. A positional relation restricting means capable of commonly restricting the positional relationship between the constituent members used in combination is provided so that the positional relationship between the recording medium and the photosensitive recording medium is the same. Item 1 The stereoscopic image recording device according to claim 5.