JP3147801U - Special prism lens screen filter for stereoscopic viewing - Google Patents

Abstract

Provided is a screen filter that enables stereoscopic viewing without using stereoscopic glasses by being used for a planar image such as a normal photograph or television image. SOLUTION: The filter part of a screen filter of a photograph, a television, a personal computer, etc. is a convex plate-like curved surface having a uniform and gentle curvature with concentric curvatures on one or both sides of a light-dispersing triangular prism lens. In order to reduce the weight of the special prism lens, the planar image is stereoscopically viewed by forming a thin plate-like Fresnel lens. [Selection] Figure 1

Description

The present invention relates to a screen filter for enabling stereoscopic viewing without using stereoscopic glasses by using it for a plane image such as a normal photograph or television image.

Most stereoscopic visions are established because parallax, which is an image shift caused by the right and left eyes viewing the object at different angles with respect to the object, occurs. However, even if a three-dimensional object is projected on a flat photograph or television image, no parallax is generated, so that it is only recognized as a flat surface. Conventionally, similar to the human eye, images taken from different angles with two cameras are combined, and then a three-dimensional image is created by creating parallax with red-blue glasses, polarized glasses, etc. A method of creating a solid by using parallax glasses for stereoscopic vision or using a prism sheet or lens sheet in which a large number of prisms and lenses are spread on a sheet to generate parallax. was there.

The conventional method has the following drawbacks.
(B) Many of the conventional methods required the use of glasses such as red / blue glasses, polarized glasses, and prism glasses for stereoscopic viewing.
(B) Conventional prism sheets and lens sheets perform spectroscopic analysis other than necessary, and thus eyes are easily fatigued.
The present invention has been made to eliminate these drawbacks.

This invention uses a transparent material such as glass or plastic, and a special prism with a light-dispersible triangular prism lens that has a uniform and gentle convex plate-like curved surface with concentric curvature on one or both sides of the light-dispersing side. This special prism lens screen is the same size as a photo or TV image, with a screen filter for a photo or TV that has been processed into a thin plate-shaped Fresnel lens to reduce the weight of the lens. The planar image can be stereoscopically viewed in a form in which the filter is arranged in front of the target image in parallel with the image. This screen filter has the shape of a special prism-made Fresnel lens in which both sides or one side of the light-dispersing side are processed into a uniform and gentle convex plate-like curved surface with concentric curvatures, respectively. In addition to the spectral separation by the prism lens, the convex plate-like curved surface further disperses the light left and right, thereby improving the spectral rate. As a result, a parallax occurs in the eyes of a person watching a photo or television, and stereoscopic vision is realized.

This prism lens screen filter is a plate Fresnel lens with the same curvature surface, so that the three-dimensional image is smooth due to its unique shape and the stereoscopic image can be seen even if the position of the line of sight is changed. The biggest feature is that even if a plurality of people watch photos or TV images at the same time without using 3D glasses, everyone can view 3D images. Furthermore, by using this screen filter, it is possible to view normal 2D images as 3D images, so you can easily enjoy 3D images for games, CG animations, and movies.

The screen filter made of a special prism lens for stereoscopic viewing is arranged in front of the target planar image so that the target image and the prism Fresnel lens surface processed into a convex plate-like curved surface are parallel to each other. In addition, since it is necessary to generate parallax on the left and right, the Fresnel lens made of a special prism needs to be disposed sideways. Since the present invention can be used for conventional planar image photographs, televisions, personal computers, etc., an existing personal computer screen fuller type removable screen filter is desirable.

It is a perspective view of the screen filter for stereoscopic vision which processed one side of the present invention into a convex Fresnel lens of a convex plate-like curved surface. It is a cross-sectional view of the center portion of the stereoscopic screen filter. It is explanatory drawing showing the use condition of this invention.

Explanation of symbols

1 Screen filter made of special prism lens 2 Fresnel lens part made of prism with convex plate-shaped curved surface 3 Television 4 Plane image

Claims (1)

Using a transparent material such as glass or plastic, a special prism lens with a light-dispersed triangular prism lens with a uniform and gentle convex plate-like curved surface with concentric curvature on both sides or one side of the light-dispersing side, A screen filter for photos and televisions processed into a thin plate-like Fresnel lens to reduce the weight of the lens, and this special prism lens screen filter of the same size as the photos and television images. , Special prism lens screen filter for stereoscopic viewing, which can stereoscopically view a two-dimensional image by placing it parallel to the image in front of the target image

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