JP3533866B2 - 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 making it possible to freely view a three-dimensional image from an arbitrary viewpoint 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 you to freely see a three-dimensional image from an arbitrary viewpoint, the initial proposal was a parallax panorama using vertical stripe slits (paralux barriers). Then, a stereoscopic photography method was proposed in which an optical image of a subject is 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. 8 to 11, a plurality of images obtained by photographing a subject from a multi-direction 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. A stereoscopic photography method has been proposed 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. 8 (a) to 11 (a) shows a plurality of images of an object photographed by a monocular camera from a plurality of predetermined different directions and viewed from individual directions in a plurality of different predetermined directions. 6 illustrates different means for obtaining an image. 8 to FIG.
1 (b) in FIG. 1 is an image capturing mode as shown in each of FIGS. 8 (a) to 11 (a), and an individual image of a subject (“subject Is sometimes described as "an image obtained by shooting a subject"), which is obtained by developing the image after shooting the "," in the direction of the optical axis of the shooting lens at the time of shooting the image. A lens plate for stereoscopic image recording in which a plurality of lenses are arranged like a fly's eye lens plate or a cylindrical convex lens array plate to project the projected image by a projector in which the optical axes of the projection lenses are aligned. 3 illustrates different means for recording a stereoscopic image by forming an image on a photosensitive recording medium installed on the focal plane of the.

In the following description of the stereoscopic image recording apparatus shown in FIGS. 8 to 11, 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, in FIG. 8A, an image is taken from the specific point O so that the optical axis of the photographing lens passes through the specific point O in a plane including the specific point O in the subject 1. A plurality of monocular cameras 2a, 2b, 2c arranged such that the distances to the exit pupils of the lenses are equal.
Shows a state in which a subject is photographed.

FIG. 8B shows an image obtained by individually photographing the subject 1 by the plurality of monocular cameras 2a, 2b, 2c ...
a, 2b, 2c, ... Projected by individual projectors 3a, 3b, 3c, ...
The above-mentioned projected images are shown as being focused on the photosensitive recording medium 5 installed on the focal plane of the cylindrical convex lens array plate 4. 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. 8 (a) and the plurality of projectors 3a, 3 shown in FIG. 8 (b).
The arrangement mode of b, 3c ... Is the same, and the specific point O in the subject 1 shown in (a) of FIG. 8 and O ′ shown in (b) of FIG. Yes, and also
The distance from the exit pupil of the taking 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. 8, a plurality of monocular cameras 2a, 2b, arranged in advance in a plurality of predetermined different directions in order to photograph a subject 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 ... Are used, in the stereoscopic image recording apparatus illustrated in FIGS. 8 to 11, the optical axis of the photographing lens of one monocular camera 2 is a specific point O in the subject 1.
After passing through a specific point of the subject 1 in a plane including, the monocular camera 2 may be moved linearly as illustrated in FIG. As illustrated in FIG. 11A, the monocular camera 2 is moved in a curved manner, or, as illustrated in FIG. 11A, the optical axis of the photographing lens of one monocular camera 2. But,
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. 9 to 11, 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 located. In the plane containing, the specific point O ′
1B, the projector 3 may be moved linearly as illustrated in FIG.
0 (b), the projector 3 is curvedly moved, or, as shown in FIG. 11 (b), the optical axis of the projection lens of one projector 3 is cylindrical. The cylindrical convex lens array plate 4 includes the O'point in a state where the specific point O'is passed through the plane including the specific point O'of the focal plane of the convex lens array plate 4. Such a cylindrical shaft is used as the center of rotation for rotation.

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. 8 to 11 relates to a region having a predetermined central angle set with the above-mentioned specific point as an apex in a plane including the specific point on the subject. , Each of the plurality of radial straight lines that equally divides the area is used as the optical axis of the photographing lens, and when the subject is photographed, the image of the subject that should be obtained individually is projected by the projector. It is used as an image of each individual subject in the images of a plurality of target subjects, and the direction of the optical axis is made to match the direction of the optical axis of the taking lens when each individual image in the image of the subject is captured. With a projector having a projection lens, each individual subject image among the plurality of subject images is converted into a fly-eye lens plate or a cylindrical convex lens. 3D photographic technique for recording a 3D image which is formed by forming an image on a photosensitive recording medium provided on the focal plane of a lens plate for recording a 3D image formed by arranging a plurality of lenses like an array plate. Can be expressed as

The stereoscopic image recording apparatus illustrated in FIGS. 8 to 11 described above has a three-dimensional shape and size that are actually present in the space in order to simplify the description 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 images of the plurality of subjects to be targeted is not an object having a three-dimensional shape and size actually existing in the space, for example, in the 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,
As in 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 plurality of directions. The corresponding image data may be obtained and used.

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 problems 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, in the angle range corresponding to the viewing zone angle determined by the configuration mode of the lens plate for stereoscopic image recording in which a plurality of lenses are arranged, in a plurality of different predetermined directions Projecting each of multiple images of the subject viewed from each individual direction,
The projection image is arranged on the focal plane of the three-dimensional image recording lens plate 4 formed by arranging the plurality of lenses through the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses. Stereoscopic image information is recorded on the photosensitive recording medium 5. 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. 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 are arranged, a wide image is generated, so that the recording of high-resolution stereoscopic image information is possible. Have difficulty. Further, in a projector used for projecting a projected image, the brightness distribution of the projected image is not uniform, resulting in a stereoscopic image with a bright central portion and a dark peripheral portion. Furthermore, when reproducing a stereoscopic image from a 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 is set correctly. However, 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 required. That is a problem. Therefore, the advent of a stereoscopic image recording apparatus without the above-mentioned problems has been desired.

[0019]

The present invention solves the above problems.
In order to decide, it is necessary to use the means 1) to 2) described below.
It That is, 1) the subject is divided into a plurality of areas and divided into the plurality of areas.
After obtaining images of multiple subjects corresponding to the area,
A plurality of images by one projector having
Projects the image of the body and displays it on the focal plane of the lens plate for stereoscopic image recording.
Stereoscopic image to be formed on the installed photosensitive recording medium
An image recording apparatus, the lens plate for recording a stereoscopic image
Is a fly-eye lens plate or a cylindrical convex lens array
Like a plate, it is configured by arranging a plurality of lenses and
Take multiple shots of a subject from multiple predetermined directions.
Image capturing means for obtaining an image, the projector and the stereoscopic image
Adjusting means for adjusting the installation distance to the recording lens plate,
A photosensitive recording placed on the focal plane of a lens plate for recording stereoscopic images.
The recording medium and the three-dimensional image recording lens plate are rotated.
In the direction perpendicular to the projection optical axis of the projector.
It has a rotation axis parallel to the vertical axis of the photosensitive recording medium.
First lens plate rotary table and the stereoscopic image recording lens
In order to rotate the plate, the projection optical axis of the projector
In the vertical direction, the horizontal axis of the photosensitive recording medium is flat.
A second lens plate rotary table having a rotary axis, and
Projector with variable aperture diameter of projection lens system
A three-dimensional image recording having a lens diaphragm
apparatus. 2) Let φD be the effective aperture diameter of the projection lens aperture, and π be
Pi, L is recording distance, Ψ is viewing angle, N is number of recorded images
3. The solid according to claim 1 , wherein the effective aperture diameter is determined by a relationship of φD = π · L · Ψ / 180 · N.
Image recording device.

[0020]

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 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 position as the center of rotation, the angle formed by the optical axis of the photographing lens and the X-axis is the same. 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 turntable 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 projector 3 is mounted on 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. 2 is a diagram for explaining an outline of a stereoscopic image recording operation in the stereoscopic image recording apparatus shown in FIG. 1, and FIG. 2B 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.
Further, FIG. 2A shows that the cylindrical convex lens array plate 4 is rotated counterclockwise from the state shown in FIG. 2B with the Y axis in FIG. 1 described above as a rotation axis. θ
It shows a state of being rotated by (+ θ). Further, FIG. 2C shows a cylindrical convex lens array plate 4
However, from the state shown in FIG. 2B, 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
2 and the cylindrical convex lens array plate 4 are set to a predetermined distance, the cylindrical convex lens array plate 4 is rotated by the Y-axis turntable 11 about the Y-axis as shown in FIG. As shown, the cylindrical convex lens array plate 4 is rotated by + θ.

The image of the subject photographed by the monocular camera is mounted on the projector 3 with the optical axis of the imaging lens of the monocular camera in the direction of + θ 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 may be an image displayed on an electro-optical display element such as an active matrix liquid crystal display element. In that case, for example, the image actually exists in space. It is not used for objects having a three-dimensional shape and size, but for example, in the field of design, medical equipment such as X-ray CT, equipment for vibration analysis, equipment for molecular structure research, etc. A computer-generated three-dimensional image is provided in the projector 3 by using image data that individually corresponds to a plurality of images viewed from different directions in a plurality of predetermined different directions. An image to be projected from the projector 3 can be displayed on the matrix liquid crystal display element.

As described above, with the cylindrical convex lens array plate 4 tilted by + θ as shown in FIG. 2A, the optical axis of the imaging lens of the monocular camera is + θ degrees from the front of the subject. An image of a subject photographed by a monocular camera as a direction is mounted on the projector 3, the image projected from the projector 3 is imaged on the cylindrical convex lens array plate 4 and recorded on the photosensitive recording medium 5, and then the cylindrical convex lens array is formed. The plate 4 is sequentially rotated in the clockwise direction (−θ direction) by a predetermined angle about the Y axis as a rotation center by the Y-axis turntable 11, and is shown in FIG. 2B. After the state, as shown in FIG. 2C, the cylindrical convex lens array plate 4 is tilted by −θ, but the cylindrical convex lens
Every time the array plate 4 is sequentially rotated by a predetermined angle about the Y axis as a rotation center, a predetermined image among the images of the subject captured by the monocular camera is projected from the projector 3 and An image is formed on the cylindrical convex lens array plate 4 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. 2A, the optical axis of the image pickup lens of the monocular camera is set to the front direction of the subject. An image of a subject photographed by a monocular camera is attached to the projector 3, and the image projected from the projector 3 is imaged on the cylindrical convex lens array plate 4 in the state as shown in FIG. Record on 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 rotates by −θ as shown in FIG. If it is set to the state where the optical axis of the imaging lens of the monocular camera,
An image of the subject captured by a monocular camera in the direction of −θ degrees from the front of the subject is mounted on the projector 3, and the image projected from the projector 3 is tilted by −θ as shown in FIG. 2C. The image is recorded on the photosensitive recording medium 5 by forming an image on the cylindrical convex lens array plate 4 in the existing state.

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 of 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.

Although the description given so far with reference to FIG. 2 has been made on the case where the three-dimensional image recording lens plate 4 formed by arranging a plurality of lenses is the cylindrical convex lens array plate 4, a plurality of lenses are arranged. When the fly-eye lens plate 4 is used as the three-dimensional 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. The fly-eye lens plate is rotated by a predetermined angle about the vertical axis shown as the Y-axis, and the image of the subject captured by the monocular camera at the above-mentioned angle is displayed on the projector 3 for each angle. When mounted, the image projected from the projector 3 is imaged on the fly-eye lens plate 4 and recorded on the photosensitive recording medium 5.
The above recording operation is repeated, and then X in FIG.
The fly's-eye lens plate is rotated by a predetermined angle with the horizontal axis shown as the axis as the rotation axis, and for each angle,
The image of the subject photographed by the monocular camera at the above angle is mounted on the projector 3, and the image projected from the projector 3 is formed on the fly-eye lens plate 4 to form the photosensitive recording medium 5.
The recording operation of recording the data 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 and fly-eye lens plate 4) formed by arranging a plurality of lenses. The recording state of the image on the photosensitive recording medium 5 when the image is recorded on the photosensitive recording medium 5 arranged on the surface will be described with reference to FIG. 3 as follows. In FIG. 3 (a), φ
D is an effective aperture of the projection lens system of the projector 3, and L is a three-dimensional image recording lens plate 4 (cylindrical convex lens array plate 4 and fly's fly) 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 plane of the lens of the eye lens plate 4), the angle directivity β
Is β = φD / L (1) It is represented by the above equation (1).

The angular 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. It can be seen from the above equation (1) that the value of φ is constant, the larger the effective diameter φD of the projection lens system of the projector 3 is, the larger the value is. The angle directivity β
Is large, as illustrated in FIG. 3 (b), which is an enlarged view of a part of FIG. Occurs, and as a result, the resolution is lowered and blurring occurs. In addition, the effective diameter φD of the projection lens system of the projector 3 is kept constant,
The angle directivity β can be reduced by increasing 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 in which a plurality of lenses are arranged. 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 cannot be reproduced.

FIG. 3C 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 angular 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 (2) is required. d ≧ φD (2) Then, when the relationship of the above equation (2) is established, the maximum number of printable images N is obtained by the following equation (3). N = (π · L · Ψ / 180 · d) +1 (3) (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 is understood from the equation (3) 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 (3) with 0 mm, the maximum number of sheets is obtained as 11 to 12.

As described above, using the stereoscopic image recording lens plate 4 having the viewing zone angle Ψ of 30 degrees, and using the ordinary projector having the effective aperture φD of the projection lens system of 30 mm, the maximum number of recorded images can be increased. When recording 11 to 12 images, the angular interval between successive images is 2.7 degrees.
In this case, the “jump” of the image is very noticeable, and only an unnatural stereoscopic image can be reproduced. In addition, a reduction in resolution per image cannot be prevented, resulting in a low-quality stereoscopic image.

FIG. 4A 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) FIG. 6 is a diagram illustrating and explaining a recording state of an image on a medium 5. In FIG. 4A, 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.

If a diaphragm 7 is provided in the projection lens system 6 of the projector 3 as shown in FIG.
The actual effective aperture of the projection lens system is that 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 the projector 3 is smaller than φD. The effective diameter is φDi.
Under the condition that the recording distance L to the focal plane of the lens of the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses 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 (1) 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. 4B 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 is reduced, so that the spread of the image is reduced, and as a result, the resolution is improved. Therefore, as illustrated in FIG. 4C, compared to the projector distance d when the diaphragm 7 is not provided in the projection lens system 6 of the projector 3, the diaphragm in the projection lens system 6 of the projector 3 is reduced. By providing 7, the project interval di in the case where the effective diameter is changed from φD to φDi in the relationship of φDi / φD = 1 / α
Since it becomes easy to set di = d / α, many images can be recorded, the occurrence of “jumps” in the image can be eliminated, and a natural stereoscopic image can be easily reproduced. The resolution of can be improved and a high quality stereoscopic image can be obtained.

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 transforming the equation (3), the following equation (4) for obtaining the effective aperture φD of the projection lens system 6 of the projector 3 can be obtained. φD = (π · L · Ψ / 180 · N) and φDi = (π · L · Ψ / 180 · N) (4) For example, the configuration of the stereoscopic image recording lens plate 4 used in the stereoscopic image recording apparatus. Is 30 degrees, and 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 is 600 mm. When the number of recorded images is 101, the effective aperture φDi of the projection lens system 6 of the projector 3 is about 3 mm when calculated from the above equation, and is required when the number of recorded images is 61. When the effective aperture φDi of the projection lens system 6 of the projector 3 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 addition, as illustrated in FIG.
In some cases, the recording state may be such that a 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 in the relationship of the above formula (4), and recording is performed using a smaller projector aperture than the projector aperture φDi of the formula (4) obtained from the number N of recorded images. By the way, as shown in FIG. 5A, 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 recorded medium as shown in FIG. 5B, the above-mentioned unrecorded areas 5b, 5b ... 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 (4) is always established, and a plurality of pluralities are obtained. In the photosensitive recording medium 5 installed on the focal plane of the lens plate 4 for stereoscopic image recording, in which the lenses are arranged, as shown in FIG.
As illustrated in FIG. 1, only the recording area 5a is formed and the unrecorded area 5b is not generated. As the diaphragm 7 provided in the projection lens system 6 of the projector 3 described above, it is easy to adjust the diaphragm aperture to an optimum diaphragm aperture that satisfies the formula (4) described above.
Advantageously, a variable aperture is used. 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. 6 is a view exemplifying the diaphragm 7 provided in the projection lens system of the projector 3, and FIG. 6A 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 which is larger than the above-mentioned Di. FIG. 6A
The circular diaphragm 7 having a diameter of Di shown in FIG. 2 is different from the case where the stereoscopic image recording lens plate 4 formed by arranging a plurality of lenses used in the stereoscopic image recording device is the fly-eye lens plate 4. In any case, the cylindrical convex lens array plate 4 can be used as the diaphragm 7 provided in the projection lens system of the projector 3.

However, the aperture 7 having a long hole shape as shown in FIG. 6B has a lens plate 4 for recording a stereoscopic image formed by arranging a plurality of lenses used in the stereoscopic image recording apparatus.
Can be used only in the case of the cylindrical convex lens array plate 4. That is, the single-eye lens that constitutes the fly-eye lens plate 4 has a lens action in any direction around the optical axis, and the fly-eye lens plate 4 has a three-dimensional shape in the vertical direction of the lens plate. Since the image information is recorded, only the circular diaphragm 7 as shown in FIG. 6A can be used as the diaphragm 7 to be used in the incident light path to the fly-eye lens plate 4. . On the other hand, the cylindrical / convex lens does not exhibit lens action in its cylindrical axis direction,
The diaphragm 7 to be used in the incident light path to the cylindrical convex lens array plate 4 has a long hole shape as shown in FIG. 6B which is long in a direction parallel to the cylindrical axis direction of the cylindrical convex lens. The diaphragm 7 can also be used. Then, the elongated aperture stop 7 as shown in FIG.
6 has a larger aperture area than the circular diaphragm 7 shown in FIG. 6A, the amount of light emitted from the diaphragm 7 is also large, and therefore a bright image can be projected and the recording time Can be shortened. In addition, as the above-described elongated hole-shaped diaphragm 7, an oval shape as shown in FIG. 6B that is long in a direction parallel to the cylindrical axis direction of the cylindrical convex lens from the state where the front shape is circular. It can be implemented as an arbitrary shape within the range up to the state.

By the way, although a stereoscopic photograph is a still image, when evaluating the image quality of a still image and a moving image, it is generally said that the evaluation of the image quality of a still image is more strict than the evaluation of the image quality of a 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 high 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, so that only a stereoscopic image giving 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.

As described above, when the diffusion plate is provided between the light source of the projector 3 and the projection image,
The use of the diffuser plate naturally reduces the amount of light supplied to the projection image, and the projected image becomes dark. However, in the three-dimensional image recording apparatus of the present invention, unlike the case of a general projector, it is more important that the flatness of the luminance distribution in the projected image is better than the luminance of the projected image is high. By using the diffuser plate as described above, the ambient illuminance ratio can be set to 95%,
It is possible to easily record a high-quality stereoscopic image. As described above, the decrease in the amount of light supplied to the projection image due to the use of the diffusion plate may increase the projection time of the projection image on the photosensitive recording medium 5, increase the light amount of the light source, or increase the light amount of the photosensitive recording medium. It is possible to solve the problem 5 by using a highly sensitive one.

When reproducing a stereoscopic image 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. Lens plate for stereoscopic image recording 4 formed by arranging a plurality of lenses used for recording a stereoscopic image
(Fly-eye lens plate, cylindrical convex lens / array plate) The same stereoscopic image to be reproduced is recorded on the stereo image reproducing lens plate (fly-eye lens plate, cylindrical convex lens / array plate) having the same configuration as 4 The recorded photosensitive recording medium is mounted, and the stereoscopic image recorded on the recorded photosensitive recording medium is reproduced by irradiating the reproducing light.

However, as described above, when reproducing a stereoscopic image from a recorded photosensitive recording medium, the recorded photosensitive recording medium and a lens plate for reproducing a 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 three-dimensional 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. 7A. 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 provided near the one end of the photosensitive recording medium 5 with a predetermined distance K are provided for three-dimensional 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 at a predetermined distance K near one end of the lens plate 4 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 stereoscopic 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 near the end with a predetermined distance K are arranged in exactly the same manner for 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.

Two engaging pins 1 projecting at a predetermined interval K are provided near one end of a stereoscopic image recording lens plate 4 in which a plurality of lenses used during a recording operation are arranged.
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.

[0057]

As is clear from the above description, the stereoscopic image recording apparatus of the present invention can prevent the resolution of the recorded image from being lowered by providing the diaphragm in the projection lens system of the projector. Since the number of recorded images can be increased, so-called omission can be prevented, good recording operation can be performed under conditions suitable for the number of recorded images, and moire due to interference between the recorded image and the lens pitch is generated. It's easy to lose, and again,
In addition to the recording operation adapted to the different number of recorded images, the brightness distribution of the recorded images can be made uniform, and the recorded photosensitive recording medium on which a stereoscopic image is recorded by the stereoscopic recording apparatus of the present invention is It is also easy to quickly and accurately attach the lens plate for reproducing a stereoscopic image formed by arranging a plurality of lenses, and the present invention can satisfactorily solve the conventional problems.

[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 diagram for explaining a recording operation of a stereoscopic image recording device.

FIG. 3 is a diagram for explaining a recording operation of the stereoscopic image recording apparatus.

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

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

FIG. 6 is a diagram showing a configuration example of a diaphragm.

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.

[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's eye lens plate, cylindrical convex lens array plate) formed by arranging a plurality of lenses, 22 ... Recorded photosensitive recording medium,

Continuation of front page (56) Reference JP-A-53-22417 (JP, A) JP-A-58-154836 (JP, A) JP-A-4-56849 (JP, A) Special table Sho-61-500042 (JP , A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03B 35/08

Claims (2)

(57) [Claims] 1. A subject is divided into a plurality of regions, and the plurality of regions are divided into a plurality of regions.
After obtaining images of multiple subjects corresponding to the divided areas,
One projector with a projection lens
Projects images of a number of subjects and
To form an image on a photosensitive recording medium installed on the focal plane
The three-dimensional image recording device, wherein the three-dimensional image recording lens plate is a fly-eye lens plate or a series.
Multiple lenses, like a convex lens array plate
Are arranged in an array, and the subject is photographed from a plurality of predetermined directions and
A photographing means for obtaining a number of images, the projector and the three-dimensional image recording lens plate.
Adjusting means for adjusting the distance, and a photosensitive material installed on the focal plane of the lens plate for recording stereoscopic images.
In order to rotate the recording medium and the stereoscopic image recording lens plate,
The direction perpendicular to the projection optical axis of the projector
A first lens having a rotation axis parallel to the vertical axis of the photosensitive recording medium.
In order to rotate the lens plate rotating table and the stereoscopic image recording lens plate,
The direction perpendicular to the projection optical axis of the projector
A second lens having a rotation axis parallel to the horizontal axis of the photosensitive recording medium.
It is possible to change the aperture diameter of the lens plate rotary table and the projection lens system of the projector.
A stereoscopic image recording device, comprising: 2. An effective aperture diameter of the projection lens aperture is φD.
, Pi is the circular constant, L is the recording distance, Ψ is the viewing angle, and N is recorded.
The solid according to claim 1 , wherein, when the number of images is set, the effective aperture diameter is determined by a relationship of φD = π · L · Ψ / 180 · N.
Image recording device.