CS243504B1 - Three-dimensional television and video equipment - Google Patents

Abstract

The purpose of the solution is to create three-dimensional television and video images, both monochrome and color, on the television or video equipment screen, for a larger audience, while maintaining the television standard and recording and reproducing it. The television transmitter has two identical sensing cameras sensing the image simultaneously as a human eye, the electronic switch being alternated to the transmitter such that the transmitted video signal corresponds alternately to the left and right camera images. The television comprises a control signal transmitter acting on the receiver in the viewer device, having an optical lead for each eye that opens in counteract, synchronously with time slots corresponding alternately to the left and right camera images and vice versa.

Description

(54) Equipment for three-dimensional television and video images

The purpose of the solution is to create a three-dimensional television and video image, black and white and color, on the screen of televisions or video devices, for a larger number of viewers, while maintaining the television standard and its recording and reproduction.

The television transmitter has two identical imaging cameras simultaneously capturing images as human eyes, with the electronic switch switching them alternately to the transmitter so that the transmitted video signal corresponds alternately to the left and right camera images. The television comprises a control signal transmitter acting on a receiver in a viewer device having an optical head for each eye, which opens in counter-clockwise, synchronously with the time slots corresponding alternately to the left and right camera images and vice versa.

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The invention relates to a device for three-dimensional television and video image, both black and white and color.

Previously known three-dimensional image devices, for example in film, use polaris light in planes perpendicular to each other to separate images for the left and right eyes, or images through the left and right eyes are routed through a separate optical channel to the left and right eyes of a single observer. on a stereomicroscope or a stereo-disc imaging device, so the viewer is limited to a fixed eye position when viewing the image, and other known designs require a change in television standards and complicated devices.

Because of these drawbacks, none of these known devices and designs for creating a 3D television image has been practically successfully used for television audience in the world, nor has it been demonstrated at world exhibitions, for example.

The above drawbacks are overcome by the three-dimensional television image or video image device according to the invention, which is based on the fact that the television transmitter has two identical, interconnected capturing cameras, the left camera and the right camera with lenses at one level side by side. simultaneous image capture with anti-clock electronic switch for alternately switching cameras to the TV or video input at successive time intervals corresponding to the whole image and thus two or multiple image or field images, and further comprising a synchronization device with an auxiliary start and end control transmitter a section derived from the sync pulses specified by the television standard, wherein an additional personal equipment for the viewer having an optical screen for the left eye and a screen for the right eye connected to the additional screen is associated with the television screen; m by means of a synchronization device by means of an auxiliary transmitter and an auxiliary receiver of the control signals in the additional personal device for the viewer.

The auxiliary transmitter of the additional synchronization device for the television or video apparatus transmitting the control signals towards the viewers according to the invention may advantageously be designed as an infrared or ultrasound transmitter at the same frequency as the auxiliary receiver of these control signals in the additional personal viewer device.

Optical diaphragms for left and right eye in additional personal device. for spectators according to the invention, they can advantageously be designed as glasses in glasses forming electronically controlled electro-optical light gates, consisting of liquid crystals or polarizing filters or external light modulators, which are alternately transparent to the left eye and at the same time opaque to the right eye .

To record the three-dimensional video signal of a television transmitter or television according to the invention, a recording and reproduction video apparatus can advantageously be connected to a new reproduction of the three-dimensional image on a television screen or a video apparatus equipped with a television synchronization device.

Auxiliary equipment for television, video or video equipment as well as for viewers shall be capable of transmitting video signals for three-dimensional television images and their reception and display, monochrome and color on the screen of commonly used televisions or video equipment and their viewing at a wide spatial angle in front of the screen a large number of viewers, these additional devices being substantially simple and the television standard used can be maintained, so that the present method of television broadcasting and reception is not affected by the device according to the invention even for subscribers who do not use additional devices for television or video apparatus and for viewers according to the invention .

The accompanying drawing shows an example of a three-dimensional television image or video display device according to the invention, in general block diagram of a device with additional devices for a television transmitter, a Lelevision or a video device and a spectacle.

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The television transmitter fi has two identical television camera cameras connected at the input, the left camera 2 and the right camera 2, the outputs of which are connected to the input of the transmitter fi by the electronic switch 12.

At the output of the transmitter fi is connected a transmitting antenna fifi, an input of a video device fi, but also a coaxial cable or a fiber optic cable 15 connected to the television fi. The television fi is equipped with a synchronization device fi, an auxiliary control signal transmitter 10, and an additional personal viewer device fi having an optical iris diaphragm fi is assigned to the television set fifi having an optical iris diaphragm fi: for the left eye; the transmitter 10 and the auxiliary receiver 11 in the additional personal device fi for the viewer.

The video signal for the three-dimensional television picture is recorded by the video apparatus 9 connected to the television transmitter fi and to the television fi and can be redisplayed on the television fi which is equipped with an additional synchronization device fi with auxiliary transmitter 10 as well as an additional personal equipment 6 for the viewer.

Advantageously, the three-dimensional television and video image apparatus according to the invention can be further simplified by eliminating the synchronization device 10 and the auxiliary transmitter 10 of the control signals in the television fi but also the auxiliary receiver fifi in the additional personal device for the viewer. fi, 8 with the switching periods of left and right cameras 2. and fi to the television transmitter fi are performed directly by control signals derived from a stable crystal oscillator by the respective frequency divider and control circuit built in the shutters in the additional personal viewer fi for viewers.

The three-dimensional monochrome and color television or video image apparatus according to the invention can be used not only for conventional television programs for a wide range of viewers of television networks and for an increasing number of video recorders for recording and reproducing television and own programs. special cases such as in medicine, surgery and the like for converting X-ray images to three-dimensional images, but also for television imaging and creating three-dimensional television and video images in black and white and color from microscopes, further in scientific and research laboratories, schools and especially for transmission and rapid evaluation of three-dimensional television images and video images obtained by the apparatus of the invention from aircraft and artificial satellites or spacecraft, but also from underwater images.

Claims (4)

SUBJECT OF THE INVENTION 1. A three-dimensional television and video image equipment, monochrome and color, consisting of a television transmitter for transmitting a television signal wirelessly or by coaxial or fiber-optic cable and on a receiving side from a network of television and video apparatus, it has two identical, connected cameras connected to each other, namely the left camera (2) and the right camera (3) with lenses in one level side by side for simultaneous image capture with anti-clock electronic switch (12) for alternate switching of cameras to the TV (1) or video machines (9) in successive time slots corresponding to an entire multiple of the picture or field and further comprising a synchronization device (5) with an auxiliary transmitter (10) of control signals for the beginning and end of the section derived from the synchronization pulses norm, taking k pictures An additional personal device (6) is connected to the television (4) for the viewer having an optical iris diaphragm (7) for the left eye and a diaphragm (8) for the right eye connected to the auxiliary synchronizer (5) via an auxiliary transmitter (10). and an auxiliary receiver (11) of the control signals in the additional personal device (6) for the viewer. 2. A three-dimensional television and video image apparatus according to claim 1, characterized in that the auxiliary transmitter (10) of the additional synchronization device (5) for the television (4) or video apparatus (9) is configured as an infrared or ultrasound transmitter at the same frequency. as has an auxiliary receiver (11) of the control signals in the additional personal device (6) for the viewers. 3. The apparatus for three-dimensional television and video image according to claim 1, characterized in that the optical apertures (7), (8) for the left and right eyes in an additional personal device. (6) for spectators, they are designed as glasses in glasses forming electro-optical light gates, consisting of liquid crystals or polarizing filters or external light modulators. 4. A three-dimensional television and video image apparatus according to claim 1, 2 or 3, characterized in that a video device (9) for reproducing the three-dimensional image is connected to a screen (14) to output the video signal of the television transmitter (1) or the television (4). / TV / 4 /. or video devices / 9 /.