JP2008052010A - Stereoscopic image display device and photographing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve image quality in a photographing device for taking a stereoscopic moving picture using integral photography and a display device for displaying it. <P>SOLUTION: In the device for displaying a stereoscopic image by superposing a fly-eye lens sheet 3 on the display surface of a device for displaying a moving picture, the stereoscopic images by all the lenses are displayed in a time-division manner by adding a transmitted light control means to switch the transmission or non-transmission of each convex lens to the fly-eye lens sheet 3, and switching a display image corresponding to a transmission pattern where the transmission part is discontinuous. Furthermore, the image displayed by the device is directly taken by switching the transmission pattern of a pinhole to fit to the display device by a device obtained by adding a transmitted light control means to switch the transmission or non-transmission of each pinhole to a pinhole plate where the pinholes are arranged side by side, and taking the image of a subject therethrough. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for displaying a stereoscopic image displayed using a lenticular lens or a lens sheet with higher quality, and an apparatus for capturing a corresponding image.

  The method of displaying a stereoscopic image using a lenticular lens or lens sheet based on the principle of integral photography is expected as a promising technique that can realize a realistic stereoscopic image, but it ensures high image quality and a wide viewing area. For this purpose, there is a feature that an original image with extremely high resolution is required. Therefore, when displaying a still image using a high-resolution photographic film or printed material as an original image, it is possible to display a stereoscopic image of practical quality. Although the performance of display devices such as liquid crystal panels and plasma displays has been improved, it is still difficult to ensure sufficient image quality and viewing area by using them as they are for the original image.

  In addition, there is a specific problem in capturing a stereoscopic image by integral photography that a pseudo stereoscopic image in which the perspective of the image is reversed as it is is present. Recently, since it is possible to create an original image with computer-aided computer graphics, shooting has become indispensable, and there is a tendency to develop display technology without shooting technology, but the meaning of recording and transmitting information Therefore, it is desirable that the display technique is accompanied by a corresponding photographing technique.

    An object of the present invention is to realize a stereoscopic image display device that displays a higher quality stereoscopic image by using a moving image display means with limited resolution, and a stereoscopic image that captures an original image to be displayed on the device. It is to realize a photographing device.

  According to a first aspect of the present invention, an image display unit capable of switching display contents is overlapped with a lens sheet in which convex lenses are arranged on a surface, and a transmitted light control unit that switches between transmission and non-transmission of each convex lens of the lens sheet. In the display device, the pattern of the transmitted light control means is such that the transmissive part repeats at regular intervals so as not to be continuous in at least one direction, and the transmissive part is switched over time. Three-dimensional image display characterized in that all convex lenses are repeatedly transmitted once in a time period, and the image display means displays small images side by side in accordance with the convex lenses that are in transmission at each moment. Device.

  According to a second aspect of the present invention, a pinhole plate in which pinholes are arranged on the surface, transmitted light control means for switching between transmission and non-transmission of each pinhole of the pinhole plate, and light passing through the pinhole plate Is a device that shoots a moving image by projecting the image onto the imaging surface by a photographic lens, and shoots an image of a subject through the pinhole plate, wherein the pattern of the transmitted light control means is continuous in at least one direction The transmissive part repeats at a fixed interval so that there is no image, and one frame is photographed and the transmissive part is switched, so that all the pinholes are in a transparent state once within a predetermined number of frames. It is located closer to the photographic lens by a predetermined distance than the position where the pinhole group image of the pinhole plate is formed by the photographic lens, and the light passing through each pinhole forms an image on the imaging surface. And, and a three-dimensional image photographing apparatus characterized by non-overlapping statue each other adjacent to each other in each frame.

  According to a third aspect of the present invention, there is provided a lens sheet in which convex lenses corresponding to each pinhole of the pinhole plate are arranged on the photographing lens side of the pinhole plate of the second aspect from the focal length of the convex lens. The stereoscopic image photographing device according to claim 2, wherein the stereoscopic image photographing device is placed close to a pinhole plate.

  According to a fourth aspect of the present invention, on the object side of the pinhole plate according to the second aspect, a lens sheet in which concave lenses corresponding to the pinholes of the pinhole plate are arranged one-on-one. 2 is a stereoscopic image capturing apparatus according to 2;

  According to a fifth aspect of the present invention, image display means capable of switching display contents includes a lenticular lens having cylindrical convex lenses arranged on a surface, and transmitted light control means for switching between transmission and non-transmission of each cylindrical convex lens of the lenticular lens. The display device is an overlapped display device, and the pattern of the transmitted light control means is repeated at regular intervals so that the transmission part does not continue, and the transmission part is switched over time, and within a predetermined time period. A stereoscopic image display device characterized in that all the cylindrical convex lenses are repeatedly transmitted so as to be in a transmission state once, and the image display means displays fine images side by side in accordance with the cylindrical convex lens in a transmission state at each moment. is there.

  A sixth aspect of the present invention is a slit plate in which parallel slits are arranged on a surface, transmitted light control means for switching between transmission and non-transmission of each slit of the slit plate, and light that passes through the slit plate is a photographing lens. And a camera that shoots a moving image by projecting on the imaging surface, and the pattern of the transmitted light control means is constant so that the transmission part is not continuous. Repeatedly at intervals, one frame is shot and the transmissive part is switched so that all the slits are in a transmissive state once within a predetermined number of frames, and the imaging surface is imaged of the slit group of the slit plate by the taking lens. Is closer to the photographic lens by a predetermined distance than the position where the images are connected, and the light passing through each slit forms an elongated image on the imaging surface, and adjacent images overlap each other in each frame. A three-dimensional image photographing apparatus characterized by not fit Ri.

  According to a seventh aspect of the present invention, there is provided a lenticular lens in which a cylindrical convex lens corresponding to each slit of the slit plate is arranged on the photographing lens side of the slit plate according to the sixth aspect of the present invention, based on the focal length of the cylindrical convex lens. The stereoscopic image photographing device according to claim 6, wherein the stereoscopic image photographing device is placed close to a plate.

  An eighth aspect of the present invention is characterized in that a lenticular lens in which cylindrical concave lenses corresponding to each slit of the slit plate are arranged on a subject side of the slit plate according to the sixth aspect is placed on the subject side. It is a three-dimensional image imaging device of description.

  According to the three-dimensional image display device of the present invention, an effective lens is provided in a device that reproduces a three-dimensional image by superimposing a lens lens sheet or a lenticular lens on the display surface of a display capable of reproducing moving images such as a CRT or a liquid crystal panel. Dividing into predetermined patterns and sequentially displaying them by switching time division increases the area of the unit image corresponding to each lens, thereby improving the resolution and viewing zone angle of the display image.

  Further, according to the three-dimensional image photographing device of the present invention, the original image displayed by the three-dimensional image display device of the present invention can be directly photographed by one camera, and the photographing by a plurality of cameras and the composition of the images are not required. . For this reason, according to the present invention, it is possible to configure a system that is consistent from shooting to display of a stereoscopic image.

  FIG. 1 is a perspective view showing an example of a stereoscopic image display apparatus according to claim 1 of the present invention. In this apparatus, a liquid crystal panel 1 is used as image display means capable of switching display contents, and a transparent plate 4, a liquid crystal shutter 2, and a lens sheet 3 in which convex lenses are arranged on the surface (branch eyes) are superimposed. Here, the liquid crystal shutter 2 is used as the transmitted light control means for switching between transmission and non-transmission, but at present this is the most realistic choice, and in principle, a mechanical shutter can also be used. Considering the difficulty of processing technology, it is not practical. The liquid crystal shutter 2 has a small shutter corresponding to each convex lens of the lens sheet 3 on a one-to-one basis, and the transmitted light of each convex lens can be turned on / off individually.

  The operation of the display device will be described with reference to FIG. In a normal display device in which the lens sheet 6 is simply overlaid on the liquid crystal panel, the size of the unit image displayed on the display surface 5 of the liquid crystal panel as shown in FIG. 2 (1) must be equal to the lens pitch. The viewing zone angle θ is also limited by this. On the other hand, in the display device of the present invention, for example, as shown in FIG. 2 (2), every other transmission part of the liquid crystal shutter 2 is arranged and the non-transmission part shown by oblique lines is formed to display on the display surface 7. The size of the unit image can be made double the lens pitch, and as a result, the viewing zone angle φ can be made nearly double. Of course, the resolution will be halved in this state. However, if the transmissive part and the non-transmissive part of the liquid crystal shutter 2 are reversed at the next moment and the contents of the display surface 7 are changed accordingly, an image with the same resolution as (1) Can be displayed in a time-sharing manner, and if this is repeated at a high speed, the resolution will not decrease. Although the effect of the present invention has been described as enlargement of the viewing zone angle, since the viewing zone and the resolution are in a trade-off relationship, the present invention can be connected to the improvement of the resolution. For example, if the lens pitch in (2) is halved in the example of FIG. 2, the viewing zone angle does not change and the resolution is doubled. Of course, the effect can be assigned to both the viewing zone and the resolution in a balanced manner. is there.

  Further, an example of a two-dimensional pattern of the liquid crystal shutter 2 will be described with reference to FIGS. FIG. 3 shows an example of switching between two complementary transmission patterns. The liquid crystal shutter 2 has openings arranged so as to be surrounded by a non-transmissive portion 8 such as a wiring portion, but both (a) and (b) are checkered patterns and half of the openings are in a transmissive state. In (a), the opening 9 is on (transmission) and the opening 10 is off (non-transmission), whereas in (b), the opening 9 is off and the opening 10 is on. Each opening controls transmission / non-transmission of the corresponding convex lens, and the width of the unit image is 2 of the lens (and opening) pitch as indicated by the dotted line of the boundary of the unit image corresponding to each lens. Double. Although a unit image that is long in the horizontal direction is selected here, a unit image that is long in the vertical direction can be selected in a checkered pattern. However, generally, since it is desired that a stereoscopic image has a wide horizontal (horizontal) viewing area, it is usually desirable to take a unit image that is long in the horizontal direction. If the state of (a) and (b) is switched for a short time, a three-dimensional image will be completed by all the convex lenses, and this will be repeated and a moving image will be displayed.

  When the enlargement direction of the unit image is limited to one direction, the transmission pattern of the liquid crystal shutter 2 may be a stripe shape. In this case, since the liquid crystal shutter itself can be formed in a stripe shape, the manufacture is facilitated. However, since a striped image can be seen instantaneously, when the switching speed is slow, the striped pattern may be seen and flickering may occur.

  FIG. 4 shows an example of switching four transmission patterns. In (A) to (D), each 1/4 of the opening is in a transmissive state, and the width of the unit image is vertically and horizontally twice the lens (and opening) pitch as indicated by the dotted line. And the area is quadrupled. As a result, the viewing area is also doubled vertically and horizontally, and a three-dimensional image is displayed with a resolution determined by the lens pitch by switching and displaying (A) to (D) in a short time. As described above, since the resolution and the viewing zone are in a trade-off relationship, if the viewing zone is not greedy, the effect of the present invention can be used to increase the resolution.

  Heretofore, an example of switching between two and four transmission patterns has been described. However, if generalized, a method of switching N × M transmission patterns using one of N × M openings as transmission can be used. However, since the response speed of the display device and the liquid crystal shutter is limited, if the number of switching is excessively large, the flickering feeling of the display image becomes strong, which is not preferable. In practice, it is necessary to make a balanced selection in consideration of the response speed and resolution of the components used.

  In the stereoscopic image display apparatus according to claim 1, the transmitted light control means must be placed in close contact with the lens sheet in order to control transmission / non-transmission of each convex lens. In the embodiment of FIG. 1, the liquid crystal shutter 2 is placed in close contact with the back surface of the lens sheet 3, but if this is difficult due to space problems, it may be placed on the front side of the lens sheet. FIG. 5 shows a cross-sectional view of this state, and it can be seen that the lens sheet 12 is superimposed on the display surface 11 and the liquid crystal shutter 13 is mounted to perform the same function as in FIG. In this case, the lens sheet 12 having a certain thickness can be used, and there is an advantage that the number of parts is one less than that in FIG.

  FIG. 6 is a perspective view showing an optical system of a stereoscopic image photographing apparatus according to claim 2 of the present invention. Here, only the optical system is shown, and a dark box and a structural material for storing the optical system are omitted. This optical system includes a pinhole plate 14 with pinholes arranged on the surface, a liquid crystal shutter 15, an aperture 16, a photographing lens 17, and an imaging surface 18, and transmits light from a subject to the pinhole plate 14 and the liquid crystal shutter 15. Through the photographing lens 17, the image is projected onto the image pickup surface 18, and the image pickup surface 18 is an image pickup surface of a CCD image pickup device. Here, the liquid crystal shutter 15 controls transmission / non-transmission of each pinhole of the pinhole plate 14 as in the pattern described in FIGS. Assuming that the focal length of the photographic lens 17 is f, an image 22 of the pinhole 21 of the pinhole plate 14 by the photographic lens 17 is formed at a position satisfying 1 / f = 1 / A + 1 / B as shown in FIG. However, if the imaging surface 18 is positioned closer to the taking lens 17 by d than B, an image of a pinhole camera formed by the pinhole 21 of the pinhole plate 14 is projected onto the imaging surface 18. . As a result, a small pinhole camera image corresponding to each pinhole of the pinhole plate 14 is arranged on the imaging surface 18, but the pupil width of the photographing lens 17 and the diaphragm 16 is R, and the adjacent pinholes in the transmission state are adjacent to each other. When the interval is p, if Rd / B ≦ p (Bd) / A, that is, d = pB (Bd) / AR, the adjacent pinhole camera images are not overlapped and arranged without gaps. Become. Thus, the image photographed on the imaging surface 18 satisfies the correct stereoscopic image condition referred to in integral photography, and the pattern of the liquid crystal shutter 15 is changed to the liquid crystal shutters 2 and 13 of the display device according to claim 1. If switching is performed according to, an original image corresponding to each pattern can be taken.

  The lens 19 in FIGS. 6 and 7 functions like a field lens, and has a function of adjusting the viewing area of a stereoscopic image to be photographed. Without this, a three-dimensional image having a viewing area equal to the shape of the diaphragm is obtained at the position of the diaphragm 16, but by placing the lens 19, the viewing area moves to the position of the image of the diaphragm by the lens 19, and its area becomes slightly larger. . However, since the viewing area that can be photographed by the apparatus shown in FIGS. 6 and 7 is limited by the aperture of the photographing lens 17, a high-performance lens having a large diameter and a thick wall is necessary for the photographing lens 17 in order to photograph a stereoscopic image having a large viewing area. In fact, it is quite difficult to take a 3D image with a large viewing zone. Therefore, in claim 3 and claim 4, this problem is improved by combining a lens sheet with a pinhole plate, and it is possible to easily shoot a stereoscopic image having a large viewing zone angle.

  FIG. 8 shows how the lens sheet is combined with the pinhole plate 14. Here, (a) is a partial view showing an example of claim 3 in which a lens sheet 23 with convex lenses arranged on the surface is placed on the photographing lens 17 side, and the right side of the figure is the side where the photographing lens 17 is located, The left side is the side with the subject 20. Each convex lens of the lens sheet 23 has a one-to-one correspondence with each pinhole of the pinhole plate 14, and the light entering the pinhole from the subject side at an angle α is converted into light having an angle β smaller than α by the action of the convex lens. Assuming that the angle α is the viewing angle of the photographed image and the angle β is the angle range that can be photographed by the photographing lens, even if the angle range that can be photographed is small, the large viewing zone is caused by the action of each convex lens of the lens sheet 23. It can be seen that a three-dimensional image of the corner can be taken. The lens sheet 23 must be placed at a distance shorter than the focal length of each convex lens from the pinhole plate 14. If it is placed at a distance equal to the focal length, β = 0 and the principle of the present invention does not hold, and if it is placed at a distance farther than the focal length, β becomes negative and the image is inverted, which is not preferable. At this time, the liquid crystal shutter 15 does not get in the way if it is on the subject side.

  Further, FIG. 8B is a partial view showing an example of claim 4 in which a lens sheet 24 with concave lenses arranged on the surface is placed on the subject side. Similarly, the right side is the side where the taking lens 17 is located and the left side is the subject. The side with 20. Each concave lens of the lens sheet 24 has a one-to-one correspondence with each pinhole of the pinhole plate 14, and the light entering the pinhole from the subject side at an angle α is converted into light having an angle β smaller than α by the action of the concave lens. After that, it can be seen from the same reasoning as in claim 3 that even if the angle range that can be photographed is small, a three-dimensional image having a large viewing zone angle can be photographed by the action of each concave lens of the lens sheet 24. The concave lens does not have a distance condition like a convex lens, but it is not preferable to be too far away from the pinhole plate 14 so that the one-to-one correspondence relationship with the pinhole is broken. Good. The liquid crystal shutter 15 is preferably placed on the opposite side of the lens sheet 24, that is, on the side of the taking lens 17, so that it does not get in the way.

  The principles of the stereoscopic image display device and the photographing device according to claims 1 to 4 can be easily applied to the display and photographing of a stereoscopic image using a lenticular lens. FIG. 9 is a perspective view showing an embodiment of the stereoscopic image display apparatus according to claim 5 to which the principle of claim 1 is applied. Except that the lens sheet is changed to the lenticular lens 27 and the liquid crystal shutter 26 is striped, the transmission pattern of the liquid crystal shutter 26 is shown in, for example, FIGS. ) And switch to display. Here, transmission and non-transmission of the adjacent openings 30 and 31 are alternately switched, and the corresponding fine image has a width double the lens pitch with a boundary indicated by a dotted line. The xz cross-sectional view at this time is exactly the same as FIG. 2 (2), and it can be seen that the viewing zone is enlarged by the same principle. In the stripe-shaped liquid crystal shutter, since the wiring portion 29 is also in a stripe shape, there is an advantage that the aperture ratio can be increased and the brightness is slightly increased. Here, an example in which two transmission patterns are switched has been described. However, if generalized, a method of switching N transmission patterns in which the aperture is made transparent at a period N and non-transparent between them can be used.

  Furthermore, the original image displayed by the stereoscopic image display device of claim 5 can be taken by the photographing device of claim 6. FIG. 11 is a perspective view showing an optical system of the stereoscopic image capturing apparatus of claim 6. This optical system includes a slit plate 32 having a vertical slit arranged in parallel on the surface, a liquid crystal shutter 33, an aperture 34, a photographing lens 35, and an imaging surface 36. Light from the subject is transmitted to the slit plate 32 and the liquid crystal shutter 33. , And is projected onto the imaging surface 35 by the photographic lens 35 and photographed. Here, the liquid crystal shutter 33 has a stripe-shaped opening as shown in FIG. 10 corresponding to the slit plate 32, and the diaphragm 34 is narrowed vertically to increase the depth of field. The xz plan view of this apparatus is equivalent to that in FIG. 7, and the photographed image is a correct stereoscopic image in terms of integral photography in the x-axis direction. On the other hand, in the y-axis direction, it becomes a normal planar image, so this becomes a three-dimensional image that can be displayed by a lenticular lens, and the transmissive pattern of the liquid crystal shutter is switched so as to correspond to the display device.

  In addition, in order to enlarge the viewing zone of the photographing apparatus, the principle of claims 3 and 4 can be applied, and a lenticular lens in which cylindrical convex lenses are arranged is placed on the photographing lens 35 side of the slit plate 32 (claim). 7) or a lenticular lens with cylindrical concave lenses arranged on the subject side of the slit plate 32 (Claim 8). The xz plan view in this case is equivalent to FIG.

  Since the present invention is based on the premise that the display content is displayed using a switchable device, it can be used for a stereoscopic movie or a stereoscopic television that basically captures and displays a stereoscopic image of a moving image.

An embodiment of a stereoscopic image display device according to claim 1. It is sectional drawing explaining the principle of Claim 1. It is an example of the transmission pattern of the liquid-crystal shutter in the apparatus of FIG. It is another example of the transmission pattern of the liquid-crystal shutter in the apparatus of FIG. It is sectional drawing explaining the other form of Claim 1. An optical system of a stereoscopic image photographing apparatus according to claim 2. FIG. 7 is a yz plan view of the optical system shown in FIG. 6. It is a fragmentary sectional view explaining Claim 3 and Claim 4. An embodiment of a stereoscopic image display device according to claim 5. It is an example of the transmission pattern of the liquid-crystal shutter in the apparatus of FIG. An optical system of a stereoscopic image capturing apparatus according to claim 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Liquid crystal panel 2, 13 ... Liquid crystal shutter 3 ... Lens sheet 4 with which the convex lens was arranged ... Transparent plate 5, 7, 11 ... Display surface 6, 12 ... The convex lens was arranged with Lens sheet 8... Liquid crystal shutter wiring portions 9 and 10... Opening portion 14... Pinhole plate 15... Liquid crystal shutter 16. ... Convex lens 20 ... Subject 21 ... Pinhole 22 ... Pinhole image 23 ... Lens sheet 24 with convex lenses arranged ... Lens sheet 25 with concave lenses arranged ... Liquid crystal panel 26・ ・ ・ Liquid crystal shutter 27 ・ ・ ・ Lenticular lens 28 ・ ・ ・ Transparent plate 29 ・ ・ ・ Wiring parts 30 and 31 of liquid crystal shutter ・ ・ ・ Opening part 32 ・ ・ ・ Slit plate 33 ... liquid crystal shutter 34 ... stop 35 ... imaging lens 36 ... imaging surface 37 ... lens

Claims (8)

A display device comprising a lens sheet having convex lenses arranged on a surface and transmitted light control means for switching transmission and non-transmission of each convex lens of the lens sheet on an image display means capable of switching display contents, The pattern of the transmitted light control means is such that the transmission part repeats at regular intervals so that it does not continue in at least one direction, and the transmission part is switched over time, so that all convex lenses are within a predetermined time period. A three-dimensional image display device, wherein a small image is displayed side by side in accordance with a convex lens that is in a transmissive state at each moment, and is repeatedly displayed so as to be in a transmissive state once. A pinhole plate in which pinholes are arranged on the surface, transmitted light control means for switching between transmission and non-transmission of each pinhole of the pinhole plate, and light passing through the pinhole plate is projected onto the imaging surface by the photographing lens And a camera that shoots a moving image, and shoots an image of a subject through the pinhole plate, wherein the pattern of the transmitted light control means is not spaced continuously in at least one direction. The transmissive part repeats, and one frame is shot and the transmissive part is switched so that all the pinholes are in a transmissive state once within a predetermined number of frames, and the imaging surface of the pinhole plate is It is located closer to the photographic lens by a predetermined distance than the position where the image of the pinhole group is formed, and the light passing through each pinhole forms an image on the imaging surface and is adjacent to each frame. Stereoscopic image photographing apparatus characterized by image each other fit do not overlap. A lens sheet in which convex lenses corresponding to each pinhole of the pinhole plate are arranged on the photographing lens side of the pinhole plate according to claim 2 closer to the pinhole plate than the focal length of the convex lens. The three-dimensional image photographing device according to claim 2, wherein 3. The stereoscopic image photographing apparatus according to claim 2, wherein a lens sheet in which concave lenses corresponding to each pinhole of the pinhole plate are arranged on the subject side of the pinhole plate according to claim 2 is placed. . A display device comprising: an image display means capable of switching display contents; and a lenticular lens having cylindrical convex lenses arranged on a surface and a transmitted light control means for switching between transmission and non-transmission of each cylindrical convex lens of the lenticular lens. The pattern of the transmitted light control means is repeated at regular intervals so that the transmission part does not continue, and the transmission part is switched over time, and all the cylindrical convex lenses are transmitted once at a time within a predetermined time period. A stereoscopic image display device characterized in that the image display means repeatedly displays fine images side by side with a cylindrical convex lens that is in a transmissive state at each moment. A slit plate in which parallel slits are arranged on the surface, transmitted light control means for switching between transmission and non-transmission of each slit of the slit plate, and light passing through the slit plate is projected onto the imaging surface by a photographing lens A device for photographing an image of a subject through the slit plate, and the pattern of the transmitted light control means is repeated at regular intervals so that the transmission part does not continue, and one frame is photographed. At the same time, the transmissive part is switched and repeated so that all the slits are in a transmissive state once within a predetermined number of frames, and the imaging surface has a predetermined distance from the position where the image of the slit group of the slit plate is formed by the photographing lens. It is located close to the photographic lens by the distance, and the light passing through each slit forms a long and narrow image on the imaging surface, and adjacent images do not overlap each other in each frame. Stereoscopic image photographing apparatus to. A lenticular lens in which a cylindrical convex lens corresponding to each slit of the slit plate is arranged on the photographing lens side of the slit plate according to claim 6 is placed closer to the slit plate than the focal length of the cylindrical convex lens. The stereoscopic image capturing apparatus according to claim 6, wherein the apparatus is characterized by: 7. The stereoscopic image photographing apparatus according to claim 6, wherein a lenticular lens in which cylindrical concave lenses corresponding to the respective slits of the slit plate are arranged on the subject side of the slit plate according to claim 6 is placed.

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