JPH07181428A - Special printed matter - Google Patents

Abstract

PURPOSE:To enable a viewer to view a stereoscopic vision with which patterns are indiscriminatable until the viewer stereoscopically views the vision with color spectacles without training. CONSTITUTION:The separate color type 3D vision is converted to a random dot stereogram. More specifically, the assemblies of dots within an imaginary image region 1M are respectively shifted by as much as parallax and are two- color printed by color coding with each dot. Only the dots within the imaginary image range 1M appear in relief forward (or backward) when the viewer views the stereogram by wearing the color spectacles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special printed matter which can be viewed stereoscopically.

[0002]

2. Description of the Related Art Conventionally, as this type of special printed matter, a separate color type 3D vision which can be viewed stereoscopically by color glasses whose left and right are red and blue has been generally widely known. Recently, random dot stereogram (R
DS) is used in puzzles and other fields.

[0003]

In the former separate color type 3D vision described in the prior art, it is possible to easily stereoscopically view using color glasses, but the drawn pattern is red and blue in double. Since it is drawn, it is not interesting because the pattern can be revealed without stereoscopic viewing. Further, the latter RDS cannot discriminate a drawn pattern until stereoscopic vision, but requires training for stereoscopic vision.

It is an object of the present invention to provide a special printed matter in which a stereoscopic vision in which a pattern cannot be discriminated until stereoscopic vision can be stereoscopically viewed through color glasses without training.

[0005]

In order to achieve the above object, the special printed matter of the present invention is characterized in that the separate color type 3D vision is converted into RDS.

[0006]

In the special printed material of the present invention having the above-mentioned structure, the picture and the like drawn cannot be discriminated by looking at it, but the picture can be discriminated by looking through colored glasses.

[0007]

Embodiments of the present invention will now be described with reference to the drawings.

The one shown in FIG. 1 is a two-color printing of seemingly random dots (dots), and although the pattern cannot be recognized simply by looking at it, color glasses whose left and right are red and blue are used. When this is seen, the pattern is embossed within the fictitious pattern range IM and can be viewed stereoscopically.

The principle of stereoscopic vision itself is a color spectacle system utilizing left and right parallax. In the normal color glasses method,
The design itself is color-shifted by parallax, and the red image and the blue image are viewed with colored glasses.
In the case of the present invention, as shown in FIG. 1, the aggregates of points in the fictitious pattern range IM are each shifted by parallax, and each point is color-coded for two-color printing.

For example, as shown in FIG. 2A, points A,
When B and C are all on the background surface, the distance L ₁ between the points Ax and Ay divided on the screen and the points Bx and B
The distance L ₂ between y and the distance L ₃ between points Cx and Cy are all equal. Similarly, as shown in FIG. 2B, the points a and b at the imaginary picture position are divided into points a _X and a _Y and points b _X and b _Y on the screen, and the distance l ₁ between them is l
_{Although 2} is equal, it is not equal to the distance L ₁ between the division points Ax and Ay on the screen of the point A on the background surface.

According to this principle, only the points within the fictitious picture range IM appear in front (or in the back) when looking through the colored glasses. Then, the group of the embossed points creates a contour image of a fictitious pattern and the shape can be recognized. Without colored glasses, it is difficult to recognize a pattern because a group of divided points are distributed on the same paper surface without a stereoscopic effect.

[0012]

As described above, since the special printed matter of the present invention is configured by converting the separate color type 3D vision into the RDS, the stereoscopic vision in which the pattern cannot be discriminated until the stereoscopic vision is performed without using the colored glasses. You can see in stereo.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a special printed matter according to the present invention.

FIG. 2 is a diagram for explaining the principle of stereoscopic viewing.

[Explanation of symbols]

 A, B, C points (dots) a, b points (dots) IM Fictitious picture range

Claims (1)

[Claims] 1. A special printed matter characterized by converting a separate color type 3D vision into a random dot stereogram.