JPS609290A - Stereoscopic display device - Google Patents

Abstract

PURPOSE:To obtain stereoscopic information by a real time by developing three- dimensional object information to plural piece of two-dimensional information, and executing a rearrangement at a high speed by utilizing a picture which has formed one piece of two-dimensional information by dividing said two-dimensional information in respect of a time and a space. CONSTITUTION:A Z axis 2 is set temporarily to the center of a three-dimensional object 1, the object 1 is cut to plural planes 3-1-3-n vertical to the Z axis 2, and orthogonal coordinate axes X1-Xn, Y1-Yn are set to each of them. These planes 3-1-3-n are formed to new planes 4-1-4-n, (n) pieces of divided areas are selected, one period is formed by an (n) times portion, and one piece of three-dimensional information is contained in one period. A rotary motor is provided in front of a TV device having a two-dimensional display device of such a stereoscopic display device, and an image forming system is placed in accordance with the picture of the two-dimensional display device. The image formed on a lens system of this image forming system is projected to a projecting member, it is rotated by a motor, and a virtual stereoscopic image is formed through a screen.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a three-dimensional display device, and particularly to a three-dimensional display device capable of displaying three-dimensional images in real time.

Prior Art and Problems Conventionally, the first method to perform stereoscopic display is to use holography, and the first method is to use colored glasses or polarized glasses to modulate the left and right eyes when viewing an image provided on a flat screen. There are two methods: the second method gives a three-dimensional effect. The first method requires holography to produce a hologram in advance to obtain a three-dimensional image, and has the problem that it cannot be displayed in real time. The second method can change the stereoscopic screen in real time, but the stereoscopic screen does not change much even if the observer's position changes, and there is a problem in that the stereoscopic information is insufficient.

Purpose of the Invention The purpose of the present invention is to expand three-dimensional object information into a plurality of pieces of two-dimensional information, and to further divide the two-dimensional information temporally and spatially into a single piece of two-dimensional information. The object of the present invention is to provide a stereoscopic display device that can be used to quickly re-arrange temporally and spatially, thereby obtaining stereoscopic information in real time.

Structure of the Invention According to the present invention, information on a three-dimensional object is divided into cross-sectional information on n two-dimensional planes at different positions perpendicular to two coordinate axes passing through the three-dimensional object, and each of the divided two-dimensional The information on the plane is divided into n blocks having the same coordinate area of the x-y plane coordinate axes set by parallel translation to the above two coordinate axes, and the x −
Select one block at a different position with respect to the y-plane coordinate axis,
A two-dimensional image is formed by combining n blocks sequentially selected from each plane, and the two-dimensional image is displayed on a light-emitting table without depth information, a water device, and n blocks. The image is projected onto n projection members having light-receiving parts only in areas corresponding to the three-dimensional position of the three-dimensional object through the imaging system of The blocks are sequentially scanned, and the light-emitting display device changes the information of each block in synchronization with this scanning, and all three-dimensional object division information in one period is displayed with n repetitions as one period. There is provided a stereoscopic display device characterized in that the repetition time of one cycle is faster than the response time of the eye by an amount of light.

Embodiments of the Invention The present invention will now be explained by way of embodiments with reference to the accompanying drawings.

1 to 3 are diagrams showing the principle of the apparatus of the present invention, and FIG. 1 is a diagram illustrating a method of dividing a three-dimensional object 1 into a plurality of planes and displaying it on one two-dimensional screen.

In Fig. 1 (1), assuming two axes 2 passing through the center of the three-dimensional object 1, a plurality of n planes 3-1.3 perpendicular to the Z-axis are assumed.
-2. ...Cut out the three-dimensional object 1 according to 3-n.

Next, the n planar images 3-1°3-2.
...3-n, as shown in FIG. 1 (2), the orthogonal coordinate axes xkr yk (k=1 e 2.n
). Furthermore, the first coordinate axis (Xi + 7i
) and the j-th coordinate axis (xj, yj) are moved in parallel in the direction of the two axes 2 and coincide with each other. That is, when n-+ω, points expressed by the same -xy coordinates of adjacent dividing planes coincide.

Each plane set in this way is equally divided into n areas with matching x-y coordinates, and each divided area is mapped to Figure 1 (1) as shown in Figure 1 (2). Reference number 3-1
-1,...3-1-n, 3-2-1...3-
Represented by 2-n,...3-n-1...3-n-n.

Next, as shown in FIG. 1 (2), each plane 3-1
．． One area is selected from 3-2...3-n so that the x-y areas do not overlap as indicated by diagonal lines.

This creates new planes 4-1, 4-2,...
4-n is formed (FIG. 1(3)). This new plane is created by sequentially selecting divided areas on the n planes in Figure 1 (2).
Each time is one cycle (planes 4-1 to 4 in Figure 1 (3))
-n), all three-dimensional information divided during this one period is included.

FIG. 2 is a conceptual diagram when configuring a stereoscopic display device according to the present invention based on FIG. 1 above. The idea is to obtain three-dimensional information by retracing the process disclosed in FIG.

In FIG. 2, in addition to the two-dimensional display device 4 in FIG. 1, an imaging system 5 is shown.
, a projection plane moving area formed in the space below the two-dimensional display device 4 is a three-dimensional image forming area 7 .

Next, referring to FIG. 3, the operation shown in FIG. 2 will be explained. Figure 3 is a view seen from m - m' in Figure 2, and Figure 3 (
, )(b) and (c), the two-dimensional display device 4
is fixed, and the display screen changes as shown in FIG. 1 (3). In response to changes in the screen of the two-dimensional display device 4, each element of the imaging system 5 and the projection surface 6 moves. If the movement of each element is fast, a plurality of two-dimensional images at different positions can be obtained, and three-dimensional information can be obtained together. The imaging system 5 is configured to enlarge and project the image on the two-dimensional display device 4 as shown, but projection at the same magnification is also possible. In the case of same-magnification projection, the imaging system position of each element is an intermediate position between the two-dimensional display device 4 and the projection plane 6-. Also, as is clear from the figure, the imaging system 5 and the display device 4
In a system where the distance to the projection surface 6-k is constant, the distance to the projection plane 6-k changes and the magnification also changes. In such a system, it is necessary to change the pixel size or light intensity (brightness) on the display device 4 in accordance with the magnification.

FIG. 4 is a perspective view of a stereoscopic display device according to the present invention based on the principles shown in FIGS. 1 to 3 above.

The same reference numerals as those explained in FIGS. 1 to 3 are used, and a rotary motor 8 is installed in front of a television device having a two-dimensional display screen 4. Image 3-1-1.3-2-2 appearing on screen 4,
. . . Composite lens arrays forming the imaging system 5 are arranged radially, and images are formed through the lens arrays by projection members 6-1, 6-2, and 6-2 made of elongated glass tubes. . . 6-n and rotated by the motor 8 to display it as a three-dimensional image.

When viewed through a screen, the human eye sees a three-dimensional image.

Effects of the Invention According to the present invention, three-dimensional information is time-divided into two
Since it is possible to synthesize dimensional information using the afterimage phenomenon of the human eye, it is possible to display a three-dimensional image in real time.

[Brief explanation of drawings]

1 to 3 are principle explanatory diagrams of the apparatus according to the present invention, and FIG. 4 is a configuration diagram of the apparatus according to the present invention.

Claims (1)

[Claims] Information on a three-dimensional object is divided into cross-sectional information on n two-dimensional planes at different positions perpendicular to the two coordinate axes passing through the three-dimensional object, and the information on each divided two-dimensional plane is Divide the blocks into n blocks having the same coordinate area of the X-y plane coordinate axes set by moving parallel to Select one different block and draw one from each plane.
A two-dimensional image is formed by combining n blocks selected one after another, and the two-dimensional image is displayed on a light-emitting display device that does not have depth information, and is displayed in a three-dimensional image via an n imaging system. The light is projected onto n projection members that have light-receiving parts only in areas corresponding to the three-dimensional position of the object, and the projection members and the imaging system sequentially scan the n blocks on the same coordinate of two coordinate axes. The display device changes each block information in synchronization with this scanning, and all three-dimensional object segmentation information of one period is displayed with n repetitions as one period, and the repetition time of one period is determined by the eye response. A three-dimensional display device characterized by being sufficiently faster than time.