JPH0576624B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an image display device that allows an observer to sequentially view different images in color and three-dimensionally by sequentially changing the observation location. .

Configuration of conventional examples and their problems In recent years, it has become possible to sequentially view different images three-dimensionally by arranging multiple image sources and moving the observer's eye position sequentially by walking or moving his or her head. Video display devices have been proposed.

A conventional video display device will be described below with reference to the drawings. FIG. 1 is a block diagram of a conventional video display device. 1, 2, 3, 4, 5 are video sources, 6
is a half mirror, 8 is image source 1, 2, 3, 4, 5
Points 9, 10, 11, 12, and 13 on the lenticular screen 7 with which the optical axes of the images coincide are observation points.The operation of the conventional video display device configured as described above will be described below. Video source 1, 2,
Images 3, 4, and 5 are enlarged and projected onto a rental screen 7 via a half mirror 6.
The observer views observation points 9 and 1 through the half mirror 6.
0, 11, 12, and 13 are video sources 5, 4, and 13, respectively.
Images of 3, 2, 1 can be observed. Since the image sources 1, 2, 3, 4, and 5 are arranged at intervals between both eyes, when the observer sequentially moves in the direction of arrow a, the right and left eyes sequentially receive images 10 and 9, 11 and 10, respectively.
Located at 12 and 11, 13 and 12. Video source 1,
At this time, images 2, 3, 4, and 5 are provided so as to be information for the right eye and the left eye, so that the observer can sequentially observe different images three-dimensionally by moving in the direction a.

However, in the above configuration,
In order to sequentially arrange the image sources 1, 2, 3, 4, 5 at the binocular distance, the image sources must be small, and therefore the observation points 9, 10, 11, 12, 13
The image observed is not bright enough. In addition, since the distance between the image sources 1, 2, 3, 4, and 5 is the distance between both eyes, the image observed when the observer moves sequentially in the direction of a is not continuous but jumps, giving a sufficient three-dimensional effect. The problem was that it could not be obtained.

OBJECTS OF THE INVENTION The present invention provides an image display device that provides a brighter and more continuous image as the viewer moves and makes it possible to obtain a color image with a more three-dimensional effect.

Structure of the Invention In the present invention, a first image source group consisting of a plurality of image sources is disposed in front of a transmission type double lens screen via a half mirror, and is 90 degrees with respect to the first image source group. A second image source group is placed in the direction of
The image display device is configured such that the optical axes of the second image source group are sequentially located between the optical axes of the first image source group.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a side view showing the configuration of the video source of the video display device in one embodiment of the present invention, in which 14R is a red video tube, 15G is a green video tube, 16B is a blue video tube, and 17 is a red video tube. reflective dichroic mirror,
18 is a blue-reflecting dichroic mirror, 19 is a projection lens, and 20 is a fixed body that fixes these as a unit.

FIG. 3 is a block diagram of the video display device of the present invention, where 21, 22, 23, 24, and 25 are video sources each having the configuration shown in FIG. 2, 26 is a half mirror,
27 is a double lenticular screen 28 on which the optical axes of the image sources 21, 22, 23, 24, and 25 coincide.
The upper points 29, 30, 31, 32, and 33 are observation points for observing images from the image sources 21, 25, 22, 24, and 23, respectively, and the arrow b is the direction of movement of the observer.

The operation of the video display device of this embodiment configured as described above will be described below. Video source 2
Images from 1, 22, and 23 are from half mirror 26
The image is enlarged and projected onto the double lens screen 28 via. Since the half mirror 26 is attached to the double lenticular screen 28 at an angle of 45°, the optical axes of the images from the image sources 24 and 25 are located between the image sources 22 and 23, respectively, and the image sources 21 and 22. The image is projected onto the double lens screen 28 so as to be positioned midway between the two. 2
Due to the directivity of the multi-directional screen 28, images from image sources 21, 22, 23, 24, and 25 are directed to observation points 29, 31, 33, 32, and 30, respectively.
observed in Video sources 21 and 22, 22 and 23,
Since the observation points 24 and 25 are arranged at the distance between the eyes, the distance between the observation points 29, 30, 31, 32, and 33 is half the distance between the eyes. Therefore, when the observer moves in the direction of arrow b, the left and right eyes sequentially move to the image sources 23 and 2, which provide images suitable for observation at positions 33 and 31, 32 and 30, and 31 and 29, respectively.
Images from 2, 24 and 25, 22 and 21 can be observed in three dimensions. As shown in Figure 2, each image source is configured in a vertical T-shape, so even with three tubes, the distance between each image source can be narrowed to the distance between the eyes, and bright color image sources can be used. Can be provided. Furthermore, since the configuration uses a half mirror to provide another image between the two eyes, the viewer can sequentially
Color images observed while moving in the direction are continuous, have fewer jumps, and are obtained as more three-dimensional images.

Effects of the Invention As described above, the present invention has red, green, and blue picture tubes arranged vertically in a T-shape, and dichroic mirrors for blue reflection and red reflection that are orthogonal to each other in a rectangular parallelepiped space surrounded by a face plate. A projection lens is placed on the optical axis in front of the image source, and three image sources are placed in front of the transmissive double lens screen via half mirrors. Since the optical axes of the two image sources from 90° positions are positioned by combining half mirrors, the images observed by the observer as they move sequentially are bright and continuous. , which is observed as a more three-dimensional color image.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional video display device, FIG. 2 is a side view of a video display device according to an embodiment of the present invention, and FIG. 3 is a block diagram of an embodiment of the present invention. 1, 2, 3, 4, 5, 21, 22, 23, 2
4,25...Video source, 6,26...Half mirror, 7...Rental screen, 8,2
7... Points on the screen where the optical axis of the image source coincides, 9, 10, 11, 12, 13, 29, 30,
31, 32, 33...observation point, 14R...red picture tube, 15G...green picture tube, 16B...blue picture tube, 17...red reflective dichroic mirror,
18...Dichroic mirror with blue reflection, 19...
...Projection lens, 20...Fixed main body, 28...Transparent double lens screen.

Claims (1)

[Claims] 1. A first image source group consisting of a plurality of image sources is disposed in front of a transparent double lens screen via a half mirror, and a 90-degree angle A video display device comprising: a second video source group arranged in the direction of 0.degree.; the optical axis of the second video source group is sequentially located between the optical axes of the first video source group. 2. The first green picture tube, the first red picture tubes arranged above and below, and the first blue picture tube are arranged vertically in a T-shape. Dichroic mirrors for blue reflection and red reflection are arranged orthogonally to each other in a rectangular parallelepiped space surrounded by the face plates of the first red and first blue picture tubes, and a first projection lens is placed on the optical axis in front of the dichroic mirrors. The first video source arranged and configured, and the second, third, fourth, and fifth video sources configured in the same manner as the first video source are arranged and configured, and the first, second, and third video sources are of a transmission type 2. They are placed sequentially in front of the heavy rental screen through a half mirror,
The fourth and fifth video sources are the first, second and third video sources.
The optical axes of the first, second, third, fourth, and fifth image sources, which are sequentially arranged at 90 degrees with the image source and are synthesized by the half mirror, first align with the first and second image sources. Claim 1, wherein the optical axis of the fourth image source is located between the sources, and the optical axis of the fifth image source is located between the second and third image sources. Video display device.