JPS61103141A - Stereoscopic photographic device - Google Patents

Abstract

PURPOSE:To make it possible that many person see the reproduced image of a stereoscopic photograph simultaneously, by arranging a stereoscopic picture processing lens where many minilenses having a diameter sufficiently shorter than dimensions of the whole of the photographic picture to be recorded are arranged in parallel on a plane, and an ordinary lens in parallel at a prescribed interval and forming a photographic film on the focal surface. CONSTITUTION:A stereoscopic picture processing lens 2 is arranged in the front (or at the back) of a focusing lens group 1. With respect to this stereoscopic picture processing lens 2, many minilenses 3-3 having a focal length and a diameter which are sufficiently shorter than dimensions of the whole of the photographic picture are arranged in parallel to form one lens as the whole. A stereoscopic picture processing lens 22 is placed in front of a stereoscopic photograph recording paper 21, and a real image 23 generated by the lens 22 is seen by plural persons. By the principle of reversibility of light, the same stereoscopic image as an object is reproduced on the retain of each person.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a recording and reproducing device for stereoscopic photographs, and can be used in stereoscopic cameras, stereoscopic movies, stereoscopic televisions, stereoscopic videos, stereoscopic scopes, stereoscopic microscopes, etc. be.

<Prior art> As a stereoscopic photography technology, a stereo camera equipped with twin lenses arranged side by side on the left and right takes images on two photosensitive plates, and the images are viewed using a stereoscope equipped with twin lenses arranged side by side. There's a photo. There is also holography that uses interference of monochromatic light such as laser light. The former requires one stereoscope to capture left and right sets of photographs for each viewer, making it impossible for many people to view one stereoscopic photograph at the same time, and the latter requires monochromatic light to photograph a vast subject such as a landscape. The disadvantage is that there are restrictions on the subject because it cannot illuminate the subject.

<Objective of the Invention> The object of the present invention is to: - Record a stereoscopic photograph using an eye lens and a single photosensitive plate, and allow many people to simultaneously view the reproduced image with their naked eyes without using equipment such as special glasses; It is an object of the present invention to provide a new stereoscopic photography device that can be viewed and applied to any subject.

<Structure of the Invention> The first invention of the present invention relates to a stereoscopic photographic recording device, in which a large number of mini-lenses each having a short axis sufficiently short relative to the overall size of a photographic image to be recorded are arranged side by side on a flat surface. It is characterized by a three-dimensional image processing lens and a normal lens arranged side by side at a predetermined distance apart, and a photosensitive film disposed on the imaging plane.

The second invention of the present invention relates to a stereoscopic photograph reproduction device, and relates to a stereoscopic image processing device in which a large number of mini-lenses each having a short axis sufficiently short relative to the overall size of a recorded photographic image are arranged side by side on a flat surface. Three-dimensional photographic recording images consisting of a set of mini-images corresponding to a lens and each of the mini-lenses of the three-dimensional image processing lens are arranged side by side at a predetermined distance so that an observer can observe them from in front of the three-dimensional image processing lens. It is characterized by its structure.

In the present invention, the short axis of a mini lens means the diameter in the case of a normal spherical lens, the diameter in the direction perpendicular to the generatrix in the case of a cylindrical lens, and the short axis in the case of an anamorphic lens.

<Example> First, an apparatus for forming stereoscopic image information according to the present invention will be described.

FIG. 1 shows an embodiment of the stereoscopic photography apparatus of the present invention.

A stereoscopic image processing lens 2 is arranged in front of (or behind) the focusing lens group 1. This three-dimensional image processing lens 2 has a large number of mini-lenses 3...3 arranged in parallel, each having a sufficiently small focal length and a sufficiently small lens diameter relative to the overall size of the photographic image, forming one lens as a whole. are doing. The shape of this mini-lens includes, for example, a rectangular shape as shown in Figure 2 (A), a circular shape as shown in Figure 2 (B), and a linear shape as shown in Figure 2 (C). There are ring-shaped ones as shown in FIG. 2(D). (A>Figure and (B
The mini-lens in ) is a spherical lens, and the mini-lens in figures (C) and (D) are cylindrical lenses. An image of the subject S is formed on a focusing plane 5 determined by the combination of the focusing lens group 1 and the mini lens 3.

If a photosensitive film 5 is placed on this imaging plane, one stereoscopic photographic image can be obtained. As illustrated in FIG. 8, this stereoscopic photographic image is an image separated into the number of mini-lenses 3...3.

FIG. 3 shows another embodiment of the invention. This example is
The three-dimensional image processing lens 9 of the present invention is arranged between the two lens groups 6.7, and a photosensitive film 10 is placed on the imaging plane.

FIG. 4 shows still another embodiment of the stereoscopic camera of the present invention. Behind the real image 12 obtained by the focusing lens 1), a stereoscopic image processing lens 13 and a photosensitive film 14 in close contact with the back surface thereof are placed. The thickness of the mini-lens is determined so that the imaging plane and the photosensitive surface of the film coincide.

FIG. 5 shows still another embodiment of the stereoscopic camera of the present invention. This embodiment includes a focusing lens 15 and a three-dimensional image processing lens 1.
The feature is that the photosensitive film 17 is placed on the first imaging plane of the combination of mini-lenses 6 and 6, and by appropriately selecting the thickness of the mini-lenses, it is possible to place the photosensitive film 17 on the back surface of the mini-lenses as in the embodiment shown in FIG. The photosensitive film 17 can be brought into close contact.

The stereoscopic image processing lens of the present invention is not limited to a plano-convex lens. It can be implemented using a 6-convex lens, a concave-convex lens, a concave-convex lens, a plano-concave lens, or a combination thereof. Alternatively, one side of the pond can be formed by a cylindrical lens having a vertical generating line, and one side of the pond can be formed by a cylindrical lens having a horizontal generating line.

Next, a stereoscopic photograph reproduction apparatus according to the present invention will be explained.

When reproducing a stereoscopic image, the stereoscopic photographic recording paper according to the present invention and the stereoscopic image processing lens according to the present invention are used. The types of stereoscopic image processing lenses used are the same as those used for photography, such as rectangular, linear, and circular. No focusing lens is required. Instead, the crystalline lens of the human eye serves as a focusing lens during photographing, and a three-dimensional image is formed on the retina of the human eye.

Depending on the distance between the stereoscopic photographic recording paper and the stereoscopic image processing lens, the reproduction device may produce a real image or a virtual image. FIG. 6 shows an example in which a real image is produced. A stereoscopic image processing lens 22 of the present invention is placed in front of a stereoscopic photographic recording paper 21, and a real image 23 generated thereby can be viewed by a plurality of people. Due to the principle of reversibility of light, the same three-dimensional image of the subject is reproduced on each person's retina.

FIG. 7 shows an example of a case where a virtual image is generated.

A stereoscopic image processing lens 25 is placed in front of the stereoscopic photographic recording paper 24. The focal length of the mini lens, the thickness of the lens, the refractive index of the lens material, etc. are designed so that the virtual image 26 is projected. In this case as well, multiple people can see the same three-dimensional virtual image as the subject on the retinas of their eyes.

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, 7 - It is possible to observe with the naked eye without using it and reproduce a three-dimensional image on each person's retina.

[Brief explanation of the drawing]

FIG. 1 is an optical diagram showing an embodiment of the stereoscopic photographing device of the present invention, FIG. 2 is a front view showing an example of the shape of a mini-lens of the stereoscopic image processing lens of the present invention, and FIG. An optical diagram showing another embodiment of the photographing device, FIG. 4 is an optical diagram showing still another embodiment of the stereoscopic photographing device of the present invention, and FIG. 5 is an optical diagram showing still another embodiment of the stereoscopic photographing device of the present invention. FIG. 7 is an optical diagram showing another example. FIGS. 6 and 7 are optical diagrams showing the stereoscopic photograph reproduction apparatus of the present invention. FIG. 8 is a diagram schematically showing an example of a stereoscopic photograph reproduction apparatus according to the present invention. 1.8.1). 15... Focusing lens 2.9, 13, 16, 22.24... Stereo image processing lens 15.10.14.17...
・Photosensitive film 21.25...Three-dimensional photographic recording paper patent applicant Yasushi Ozaki Representative Patent attorney Nishi 1) New Figure 3 Figure 2 (A)) (B) (D) 4th M 5th Figure 6 Figure 8

Claims (4)

[Claims] (1) A stereoscopic image processing lens consisting of a large number of mini-lenses arranged side by side on a plane with short diameters that are sufficiently short relative to the overall size of the photographic image to be recorded, and a normal lens arranged side by side at a predetermined distance apart. , a stereoscopic photographic device in which a photosensitive film is placed side by side on the formed image. (2) A three-dimensional image processing lens consisting of a large number of mini-lenses arranged side by side on a flat surface, each having a sufficiently short short axis relative to the overall dimension of the recorded photographic image, and each of the mini-lenses of the three-dimensional image processing lens. A stereoscopic photographic device configured to arrange stereoscopic photographic recorded images consisting of a set of corresponding mini-images in parallel at a predetermined distance so that an observer can observe them from in front of the stereoscopic image processing lens. (3) The stereoscopic photographic device according to claim 1 or 2, wherein the stereoscopic image processing lens is a two-dimensional assembly of spherical lenses. (4) The stereoscopic photographic device according to claim 1 or 2, wherein the stereoscopic image processing lens is a one-dimensional assembly of cylindrical lenses.