JPH06202040A - Stereoscopic viewer - Google Patents

Abstract

PURPOSE:To provide the simple stereoscopic viewer through which a sharp stereoscopic image of a considerable size with a rich amount of information can be obtained. CONSTITUTION:The stereoscopic viewer is so constituted as to obtain the stereoscopic image by viewing a figure 6a for the left eye with the left eye and a figure 6b for the right eye with the right eye. Then, the viewer is equipped with a stereoscopic figure arrangement part 4 where the stereoscopic figure consisting of the figure for the left eye and the figure for the right eye is arranged and left and right ocular parts 3a and 3b formed at a specific distance from the stereoscopic figure arrangement part 4 and at least one of the left and right ocular parts is equipped with prism functions 8a or 8b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic viewer capable of easily obtaining a stereoscopic image.

[0002]

2. Description of the Related Art As a conventional example of a stereoscopic viewer configured so that a stereoscopic image can be easily obtained, there is, for example, the one shown in FIG. The stereoscopic viewer includes a stereoscopic view arrangement surface A of the Figure a ₂ for FIG. A ₁ and the right eye for the left eye are arranged in elevation form side by side, horizontally from the stereoscopic view arrangement surface And an eyepiece portion B arranged at a predetermined distance. This eyepiece part B is an eyepiece panel B '.
Two through-holes b ₁ and b ₂ are formed at a distance corresponding to the distance between the human left and right eyes.

On the stereoscopic view placement surface A, for example, photographic images taken from two points horizontally separated corresponding to the distance between both eyes of a human are shown for the left eye and for the right eye. Are arranged side by side. Since each image is only about the size of a business card, the distance between the stereoscopic view arranging surface A and the eyepiece section B is usually considerably short in order to view it with a certain degree of power. For example, it is set to 5 to 10 cm. Then, the distance between the centroid of the diagram for the left eye and the centroid of the diagram for the right eye is equal to or less than the distance between the left and right through holes b ₁ and b ₂ in the eyepiece section. Is set.

Left and right through holes b ₁ and b in the eyepiece section B
Looking at the stereoscopic view arrangement plane A with the left and right eyes through ₂ ,
The left and right eyes will see the left and right eye views separately. Then, the visual information individually input from the left and right eyes is fusion-processed in the brain, and as a result, a person who views the stereoscopic views a ₁ and a ₂ from the eyepiece unit B perceives it as a stereoscopic image. Will be.

By the way, in the simple stereoscopic viewer having the structure shown in FIG. 6, the centroid intervals of the left eye view and the right eye view are equal to or less than the distance between the through holes b ₁ and b ₂ of the eyepiece part B. The reason we have to do this is that the human eye is not able to open its line of sight.

For this reason, the drawing for the left eye and the drawing for the right eye to be displayed on the stereoscopic view arrangement surface must be naturally small. Therefore, even if a stereoscopic image can be obtained, there is a problem in that the image is small, lacks power, and the amount of information to be included in the small area is limited.

In addition, even if the stereoscopic view is small, the visible distance is 5 to 1 in order to enlarge and visually perceive a stereoscopic image.
In many cases, the lens is shortened to about 0 cm and a convex lens is provided in the eyepiece, but in the case of a photograph or a picture on which a stereoscopic view is printed, the halftone dots of the printing plate are enlarged and visible, which is rough and unclear. The drawback is that it makes an impression.

In recent years, panoramic photographs in which the width of an image is enlarged have become popular, but in a conventional simple stereoscopic viewer as shown in FIG. 6, the width of the drawing for each eye is significantly limited, and Since the dimension is 6 cm or less, it is usually impossible to stereoscopically view a panoramic photograph having a width of more than 20 cm.

The present invention has been devised under the above circumstances, and it is possible to easily and stereoscopically see a figure or a photograph whose width is larger than the interpupillary distance between both eyes of a human. The object is to provide a stereoscopic viewer configured as described above.

[0010]

In order to solve the above problems, the present invention takes the following technical means.

That is, according to the invention described in claim 1 of the present application, a stereoscopic viewer configured to obtain a stereoscopic image by observing a diagram for the left eye with the left eye and a diagram for the right eye with the right eye. And
A stereoscopic view arranging unit in which a stereoscopic view consisting of a diagram for the left eye and a diagram for the right eye is arranged, and left and right eyepieces formed at a position separated from the stereoscopic view arranging unit by a predetermined distance. It is characterized in that at least one of the left and right eyepieces has a prism function.

The invention according to claim 2 of the present application is a stereoscopic viewer configured to sell a stereoscopic image by viewing the diagram for the left eye with the left eye and the diagram for the right eye with the right eye. And
A stereoscopic view arrangement unit in which a stereoscopic view consisting of a diagram for the left eye and a diagram for the right eye is arranged, left and right eyepieces, and a constant distance between the stereoscopic arrangement unit and the eyepieces And a connecting portion that defines the eyepiece portion, and at least one of the left and right eyepiece portions has a prism function.

[0013]

According to the invention described in claim 1 or 2 of the present application, at least one of the left and right eyepieces has a prism function as compared with the conventional simple stereoscopic viewer of this type shown in FIG. It is characterized by The prism function can change the direction of the line of sight when viewing the stereoscopic view arrangement unit from the eyepiece unit as desired. It is also possible to diverge (outwardly open) the line of sight with a prism, which can greatly extend the distance between the centroids of the left-eye view and the right-eye view. It is possible to expand the width of the eye and right eye figures by that amount, and a large amount of information can be included in one figure, and a convex lens can be used at an unreasonable short distance to view a small figure with power. It is also possible to prevent noticeable dots in the figure such as halftone dots of the printing plate from being noticeable by using it.

In a preferred embodiment of the present invention, both of the left and right eyepieces direct the direction of light directed through the eyepieces toward the stereoscopic view arranging portion to the left eye view and the right eye view. The prism function is provided so that the prism function is changed toward each centroid of the drawing (claim 3).

The left-eye view and the right-eye view can be placed on the left and right sides of the stereoscopic view placement section (claim 4) or can be placed on the top and bottom sides (claim). Item 5).

When the figure for the left eye is arranged on the left side and the figure for the right eye is arranged on the right side, the prism function of the left and right eyepieces is to control the line of sight when viewing the stereoscopic view arrangement portion through each eyepiece. Each will have the function of expanding outward. Then, even if the center-to-center distance of the left eye view and the right eye view is set to be larger than the interpupillary distance between both eyes of the human, the left and right eyes do not have a problem and the left eye view and the right eye view As a result, it is possible to view the individual images, and as a result, it is possible to see a larger and clearer stereoscopic image with a large amount of content and a sense of reality through the eyepiece.

Further, when the left-eye view and the right-eye view are arranged vertically in the stereoscopic view arranging section, the left-right drawing is used by using the entire width in the left-right direction of the stereoscopic view arranging section. And a view for the right eye can be formed. That is, a horizontally long panoramic image can be adopted as a diagram for each eye. In this case, as the prism function of the left and right eyepieces, for example,
For the eyepiece for the left eye, the line of sight is changed inward and downward, and for the eyepiece for the right eye, the line of sight is changed inward and upward.

With this arrangement, the left eye and the right eye can individually see wide panoramic images through the eyepieces, and as a result, a stereoscopic panoramic image is obtained. be able to.

As described above, according to the stereoscopic viewer of the present invention, it is possible to use a larger picture or photograph as compared with the conventional one, so that it is more powerful, and it is compact with a large area and a large amount of information. It becomes possible to easily obtain a different stereoscopic image.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below.
A specific description will be given with reference to the drawings. 1 and 2
Shows a first embodiment of the stereoscopic viewer 1 of the present invention. The viewer 1 includes a pair of left and right eyepieces 3a and 3b provided on an eyepiece panel 2, and a stereoscopic view insertion frame 4 as a stereoscopic view arrangement portion provided in front of each eyepiece at a predetermined distance. The eyepiece panel 2 and the stereoscopic view insertion frame 4 are integrally connected to each other, and a connecting portion 5 for keeping a constant distance between the stereoscopic view insertion frame 4 and the eyepiece panel 2 is provided.

The stereoscopic view insertion frame 4 is shown in FIG. 6a for the left eye.
And FIG. 6b for the right eye can be inserted and held from above with a planar drawing plate 6 printed on the left and right with a vertical center line therebetween.

The eyepieces 3a and 3b are respectively provided with convex lenses 7a and 7a in the left and right holding holes provided in the eyepiece panel.
b and the prisms 8a and 8b are incorporated.

The distance between the two eyepieces 3a and 3b can be set to, for example, 64 mm, which substantially corresponds to the distance between the pupils of both eyes of an adult. For children, the distance between the eyepieces may be selected according to the target age, and the distance between the eyepieces may be adjustable.

The stereoscopic view insertion frame (stereoscopic view arrangement portion) 4
From the eyepieces 3a and 3b to the convex lens 7
The distance should not be set longer than the focal lengths of a and 7b, but the size of the drawing board to be inserted into the stereoscopic view insertion frame 4 should be at least as shown in FIG. 6a for each eye in the drawing board. , 6b is preferably larger than the distance between the eyepieces 3a, 3b. By doing so, the stereoscopic image obtained when the stereoscopic view is viewed from both eyepieces can be enlarged, as will be described later.

For example, when the distance from the eyepieces 3a and 3b to the stereoscopic view insertion frame 4 is about 20 cm and the dimensions for each eye are 10 cm in width and 15 cm in length, respectively, The convex lenses 7a and 7b are 3.00D (diopter) respectively, and the prisms 8a and 8b are
Can each be 12Δ (prism diopter) base out. The base-out means that the prism having a certain thickness is arranged on the outer side, whereby the line of sight when the stereoscopic view plate 6 is viewed from both eyepieces 3a and 3b is as shown in FIG. As shown by the broken line in FIG.

In addition to making the stereoscopic view look larger, the convex lens reduces the amount of accommodation of the eyes, which reduces the convergence of the eyes and avoids that each eye sees the view for the other eye. It also has the effect of making it easier.

In the above configuration, if a person who has an orthotopic (orbital) eye with almost emmetropia sees the stereoscopic view through both eyepieces 3a and 3b, the adjustment is about 2D. With a divergence of about 2Δ both on the left and right sides, the figure for each eye can be fused and viewed as a stereoscopic image.

In this embodiment, the eyepiece 3a,
The spherical convex lens and the prism lens are combined in order to have the convex lens function and the prism function in 3b, but it is also possible to provide the convex lens function and the prism function together by using one spherical lens. That is, as shown in FIG. 3, by using a part decentered from the center of one convex spherical lens, it is possible to achieve both the convex lens function and the prism function. In addition to ordinary glass or plastic lenses, thin, light and inexpensive Fresnel film lenses can be used.

Further, as the stereoscopic view arrangement section 4,
Besides inserting the stereoscopic view board 6 on which the drawings for each eye are printed, it is also possible to hold the picture book in which the drawings for each eye are arranged on the left and right.

The stereoscopic view insertion frame 4, the connecting member 5, and the eyepiece panel 2 may be integrally formed of plastic or the like in advance, but may be constructed in an assembled manner. In addition, if you use a paper material to construct an assembly type, for example,
Convenient to configure as an appendix for children's magazines.

FIG. 4 and FIG. 5 show a second embodiment of the stereoscopic viewer 1 of the present invention. This embodiment is similar to the first embodiment in that it has a stereoscopic panel insertion frame 4 as a stereoscopic view arranging portion and an eyepiece panel 2 having left and right eyepieces 3a and 3b, but The stereoscopic view insertion frame 4 and the eyepiece panel 2 have a bottom surface portion 5a and both side surface portions 5a.
They are connected to each other by a connecting portion 5 formed by bending b and 5b. By doing so, even when the connecting portions 5 are formed by bending thick paper, the stereoscopic view insertion frame 4 and the eyepiece panel 2 can be held in a fixed relationship with sufficient rigidity.

In this embodiment, FIG. 6a for the left eye and FIG. 6b for the right eye are arranged above and below the horizontal line. By doing so, the entire width of the stereoscopic view insertion frame 4 can be used to make FIGS. 6a and 6b for each eye a horizontally long panoramic image.

When a stereoscopic view is viewed through the eyepieces 3a and 3b of the present embodiment, the lines of sight of the eyes are directed to the centroids of the eyes shown in FIGS. 6a and 6b. The prism function is set as follows.

That is, the line of sight from the eyepiece 3a for the left eye is changed to inward and downward, and the eyepiece 3b for the right eye is changed.
The line of sight from must be changed inward and upward. Of course, the eyepieces 3a and 3b may also have a convex lens function in order to view the panoramic image three-dimensionally with more power. As described above, in order to give each of the eyepieces 3a and 3b both a convex lens function and a prism function, a spherical lens and a prism lens may be combined or a spherical surface may be combined as described in the first embodiment. The lens may be decentered before use.

For example, the distance between the eyepieces 3a and 3b and the stereoscopic view insertion frame 4 is set to 20 cm, and the size of the drawing for each eye is 8 cm long × 23 cm wide (this size is taken by a panoramic camera). If the service size is approximately equal to the size of the photographic print), the convex lens function of the eyepiece 3a for the right eye is 4.00D and the prism function is 15Δ base-in and 20Δ base-up. It is recommended that the convex lens function of the eyepiece 3b be 4.00D and the prism function be 15Δ base in and 20Δ base down. In the above, when the prism function is base up, it means that the side with the prism thickness is up and the line of sight is raised, and conversely, the base down is the side with the prism thickness down. It means to lower your line of sight, and base-in means
Contrary to the base out of the first embodiment, it means that the thicker one is placed inside.

With the above-mentioned configuration, the adjustment amount of both eyes is very small, the convergence is almost unnecessary, and even if the eyes of both eyes are directed straight ahead, the eyes of the left eye are for the left eye. 6a (bottom view) of FIG. 6B, and the line of sight of the right eye is directed to the center of FIG. 6b (top view) for the right eye. The effect of the convex lens is similar to that of the first embodiment.

As a result, the left eye and the right eye can view the respective figures for each eye, and reasonably fuses these visual information to obtain a super-wide, rich stereoscopic effect with a large amount of content. You can enjoy images (pictures or pictures).

Further, Fresnel film lenses may be used as the eyepieces 3a and 3b, as in the case of the first embodiment.

Further, in the second embodiment, if the diagrams for the eyes arranged above and below are slid sideways, the examination and visual inspection for the patient with abnormal eye convergence and eye position can be performed. It can also be used for functional training.

In each of the above-mentioned embodiments, both eyepieces are provided with the prism function, but it is possible to expect some effect by providing only one of them with the prism function. However, in such cases,
The off-axis chromatic aberration due to the prism is canceled out by the fact that the directions of the prism base are symmetric with both eyes, and it is almost impossible to feel.

Of course, the scope of the present invention is not limited to the above embodiments. The above two embodiments are simple ones using external light, but it is also possible to make a closed box type and illuminate a picture or photograph with a built-in light source.

The stereoscopic view for each eye does not necessarily have to be independent one by one, and may be a winding type in which it is sequentially fed in a roll shape.

Further, the stereoscopic view arranging portion does not necessarily have to be in the form of a frame for inserting a drawing board as shown in the illustrated example. For example, the front end of the connecting portion may be a stereoscopic view printed on a picture book or the like. You may make it see the stereoscopic view arrange | positioned as mentioned above from the eyepiece parts 3a and 3b, applying the end to the edge part and limiting the distance from the eyepiece part to a predetermined distance. In this case, a picture book or the like having a stereoscopic view functions as the stereoscopic view arrangement unit in the viewer of the present invention.

Further, the stereoscopic view to be arranged in the stereoscopic view arranging section may be a still image as in the embodiment, or a moving image may be displayed on a display means such as a cathode ray tube or a liquid crystal display device.

[Brief description of drawings]

FIG. 1 is a side perspective view of a first embodiment of the present invention.

FIG. 2 is a plan perspective view of the first embodiment of the present invention.

FIG. 3 is an explanatory diagram of another example in which a convex lens function and a prism function are provided together.

FIG. 4 is a side perspective view of the second embodiment of the present invention.

FIG. 5 is a perspective plan view of a second embodiment of the present invention.

FIG. 6 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stereoscopic viewer 2 Eyepiece panel 3a, 3b Eyepiece 4 Stereoscopic view arrangement part 5 Connecting part 6a, 6b Stereoscopic view 7a, 7b Convex lens 8a, 8b Prism lens

Claims (6)

[Claims] 1. A stereoscopic viewer configured to obtain a stereoscopic image by viewing the left-eye view with the left eye and the right-eye view with the right eye. The stereoscopic view placement unit in which a stereoscopic view consisting of a diagram for eyes is placed, and the left and right eyepieces formed at positions separated by a predetermined distance from the stereoscopic view placement unit are provided. A stereoscopic viewer, wherein at least one of the eye parts has a prism function. 2. A stereoscopic viewer configured to sell a stereoscopic image by viewing the diagram for the left eye with the left eye and the diagram for the right eye with the right eye. A stereoscopic view arranging section in which a stereoscopic view consisting of a diagram for eyes is arranged, left and right eyepieces, and a connecting section that defines a constant distance between the stereoscopic view arranging section and the eyepiece. A stereoscopic viewer, characterized in that at least one of the left and right eyepieces has a prism function. 3. The left and right eyepieces both have a direction of light passing through the eyepieces and directed to the stereoscopic view arrangement portion in the centroids of the left-eye view and the right-eye view. 3. A prism function for changing the direction to face is provided.
Stereoscopic viewer. 4. The stereoscopic viewer according to claim 3, wherein a diagram for the left eye and a diagram for the right eye are arranged on the left and right sides of the stereoscopic view arrangement unit. 5. The stereoscopic viewer according to claim 3, wherein a diagram for the left eye and a diagram for the right eye are vertically arranged in the stereoscopic view arrangement unit. 6. The stereoscopic viewer according to claim 1, wherein the eyepiece also has a convex lens function.