JPS6124392A - Stereo television - Google Patents

Abstract

PURPOSE:To observe a normal image in synchronizing with an image by either right or left eye as if the image were observed by both eyes by synchronizing light shutters provided on right and left lenses of a stereoscopic glasses with a switchng period at every right and left image fields of a subject displayed on a television screen or the switching period by frame and opening and closing said light shutters alternately. CONSTITUTION:By using a subject as a center, a television camera 31 is rotated and shifted. An image mixer 2 mixes and synthesizes videos at every field, and transmits them to the camera 31. After synchronizing videos by each field, electric shutters 51 and 52 of shutter-type glasses are driven. On the other hand, a frame F1 and frame F2 are photographed by two fields at a position A and position B, respectively. In the same manner, each frame is photographed by two fields at a position C-, and is observed by the shutter-type glasses. The shutters of the shutter-type glasses are operated by synchronizing them with respective fields so that the 2nd field and 1st field can be observed by a right eye and left eye, respectively, when the camera rotates clockwise. Then, for instance, a group of the fields F12 and F21 and that of the fields F22 and F31 are recognized as images with congestion angles, and a stereopsis can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field of manifestation] The present invention applies to stereoscopic television. II.

[Technical background of the invention and its problems] Various methods have been tried for stereoscopic television, but
1 and 2 show the basic concept of a typical example.

In FIG. 1, the television cameras 11, 12 take images for the right eye and the left eye, respectively; The left and right video signals are mixed and combined alternately and sent to the TV3. In TV3, the image from the right camera appears in the first field, and the image from the left camera appears in the second field. The vertical synchronization signal of this video signal is taken out from the TV receiver and inputted to a driving means 4 made of an electric shutter such as a PLZT1 liquid crystal.

The driving means 4 opens the right eye shutter 51 and closes the left eye shutter 52 when the right eye image appears on the TV 3.
When the left eye image appears, the electric shutters 51 and 52 are driven alternately so that the image becomes the opposite.

The block diagram of FIG. 1 shows a method for observing a three-dimensional image through a shutter type mirror.

FIG. 2 is a schematic block diagram of an X-ray television.

X-rays are emitted from the X-ray tubes 21 and 22 alternately for each field or frame iD, and this is transmitted to the X-ray fluorescence intensifier tube 23.
The signal is received by the vidicon 24, converted into an electrical signal, and thereafter, a three-dimensional image is observed in the same manner as in FIG. However, this conventional method has a problem in that the right eye image and left eye image become two Φs, making it impossible to view TV images unless a shutter-type sleep mirror is used.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and provides a stereoscopic television in which a three-dimensional image can be observed with a shutter-type sleeping mirror, and a normal image can be observed without a shutter-type sleeping mirror. It is intended for the purpose of providing.

[Summary of the Invention] The outline of the present invention for achieving the above-mentioned object is to use optical shutters provided on the left and right eyes of a stereoscopic sleep mirror to adjust the left and right images of a subject displayed on a television screen. In 3D preview, the image of the subject can be recognized in 3D by opening and closing alternately in synchronization with the switching cycle of each field or frame of the right image. One frame is taken at each position of the visible convergence angle, and in synchronization with this, the right eye,
The device is characterized by a system that enables stereoscopic vision when observing through a sleep mirror that alternately blocks the left eye, and normal vision when observing without passing through the left eye.

[Embodiments of the invention] Examples of the present invention will be described in detail below.

As shown in FIG. 3, the television camera 31 is rotated around the subject, and the image mixer 2 mixes 9 for each field.
The signals are synthesized and sent to the TV 31, and the electric shutters 51 and 52 of the shutter-type sleep mirror are driven via the driving means 4 in synchronization with each field.

By the way, it is known that in order to view a subject 7y stereoscopically, the angle formed between both eyes and the subject (convergence angle) needs to be around 1.5 degrees. Therefore, we decided to rotate the TV camera 31 at a speed of 1.5° every 1/30th to take pictures.
When this is displayed as a television image, it is observed as a normal image.

On the other hand, as shown in FIG. 4, at position A, frame F! , frame F2 at position B, hereafter, take two fields for each frame in the same manner as in position B and observe with a mirror with a shutter set. That is, when the camera rotates clockwise, the second field For example, if you operate the shutter of a sleep mirror with a shutter set in synchronization with each field so that the first field is observed with the right eye and the first field with the left eye, for example, field F12
, F21, F22, and Fat are recognized as images with a convergence angle, and stereoscopic viewing becomes possible. When photographing in a counterclockwise direction, the second field can be observed with the left eye, and the first field can be observed with the right eye.

In the above embodiment, an example was explained in which the camera is continuously moved to take pictures. If the image is recorded in an appropriate manner such as in a memory, it is possible to continuously project it later and observe a three-dimensional image. The same applies to X-ray television.

[Effects of the Invention] According to the present invention described in detail above, PL7T, liquid crystal, etc. are used so that a normal image can be observed with either the right eye or the left eye in synchronization with the image with binocular viewing of 1". It is possible to provide a three-dimensional television in which three-dimensional images can be viewed through a sleeping mirror with a set of shutters.

[Brief explanation of the drawings] Figures 1 and 2 are three-dimensional previews. FIG. 1 is a block diagram showing the basic concept of an X-ray television. FIG. 3 is a block diagram showing an embodiment of the present invention, and FIG. 4 is an explanatory diagram showing a state in which stereoscopic vision is observed. 11.12.31...TV camera, 2...
...Video mixer, 3...TV. 4... Electric shutter driving means, 51.52.
...L11 mirror with sciretta, 21.22...
...X-ray tube, 23...X-ray fluorescence multiplier tube, 24...Dosicon.

Claims (1)

[Claims] Optical shutters installed on the left and right eyes of the sleep mirror for stereoscopic vision,
In a 3D television that enables the image of a subject to be recognized three-dimensionally by opening and closing alternately in synchronization with the switching cycle of each field or frame of the left and right images of the subject displayed on the television screen. , the TV camera is rotated around the subject and one frame is photographed at each position that forms a convergence angle that allows stereoscopic viewing, and when the TV camera is rotated clockwise, the first field is the left eye,
The second field is the right eye, or the first field when the rotation is counterclockwise.
This stereoscopic television is characterized in that a stereoscopic image is observed when an image of a subject is observed with the right eye in the field and the left eye in the second field, and a normal image is observed when the stereoscopic sleep mirror is removed.