SU1587661A1 - Television camera - Google Patents

Abstract

The invention relates to television. The purpose of the invention is the simultaneous formation of two undistorted television signals. The television camera contains a light-signal converter in the form of a CCD matrix 1, consisting of photodetector sections 2 and 3 and output registers 4 and 5, as well as lenses 6 and 7, which guide optical elements 8 - 11, which turn the optical element 12 and the driver 13 of the control signals. The lenses 6 and 7 simultaneously form two beams of optical radiation, which with the help of elements 8 - 11 are projected onto the corresponding sections 2 and 3, carried out parallel transfer of the optical axes. The 12 unit, made in the form of prisms, rotates the image in the plane of the matrix 1 by 180 ° for one of the optical channels. The shaper 13 simultaneously controls sections 2 and 3 and registers 4 and 5. This sets the opposite direction of transfer of charges accumulated in sections 2 and 3 to the corresponding registers 4 and 5, and simultaneous transfer of video information occurs through registers 4 and 5 to video amplifiers . Light filters with different spectral transmissions or with different orientations of the polarization plane are introduced, as well as a subtraction unit. 3 hp f-ly, 1 ill.

Description

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W) 4395319 / 24-09

(22) 03/17/88

(46) 08.23.90. Bul W 31

(71) Institute for Space Research. USSR Academy of Sciences.

(72) V.A.Kottsov and V.A.D tlovsky 53) 621,397 (088.8)

(56) Mamchev G.V. Stereo-TV devices Information display. M .: Radio and Communications, 1983, p. 14.

(54) TELEVISION CAMERA

(57) The invention relates to television. The purpose of the invention is the simultaneous formation of two undistorted television signals. The television camera contains a light-signal converter in the form of a CCD matrix 1, consisting of photodetector sections 2 and 3 and output registers 4 and 5, as well as lenses 6 and 7, directed

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8-11 optical units, obortchivayuschaya optical el-12 and shaper 13 control signals. The lenses 6 and 7 simultaneously form two beams of optical radiation, which by means of elements 8-11 are projected onto the corresponding sections 2 and 3j and carried out parallel transfer of optical axes. The unit 12, made in the form of prisms, rotates the image in the plane of the matrix 1 by 18 ° for one of the optical channels. Shaper 13

FIELD: engineering.

television and can be used to receive stereo images, in applied television, in two-channel television systems.

The aim of the invention is the simultaneous generation of two undistorted television signals.

The drawing shows the proposed device.

The television camera contains a light-signal converter in the form of a CCD t matrix, having two photodetector sections 2 and 3 and two output registers 4 and 5, two lenses 6 and 7, guiding optical elements 8-11, which wraps the optical element 2 and shaper 13 controls signals.

The television camera works as follows.

The two lenses 6 and 7 simultaneously form two beams - optical radiation, which the optical guiding elements 8-11 project onto the corresponding photo-receiving sections 2 and 3 of the CCD array 1, carrying out parallel transfer of the optical axes. The reversing optical element 12 reverses the image in the CCD plane 1 to l80 for one of the optical channels. Wrap the optical element 12 may be made in the form of a Dove prism or a Pehan prism.

The imaging unit 13 generates control signals for simultaneous control of two photo-receiving sections 2 and 3 and two output registers 1 and 5 of the CCD 1.

simultaneously controls sections 2 and 3 and registers and 5. At the same time, the opposite directivity is specified

transfer accumulated in sections. and 3 charges to the corresponding registers k and 5, and simultaneous transfer of video information occurs through registers C and 5 to video amplifiers. In optical

channels m, b. light filters with different spectral transmittances or with different orientations of the polarization plane, as well as a subtraction unit were introduced. 3 hp f-ly, 1 ill.

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The connection of the clock outputs of the imaging unit 13 to the CCD sections of the matrix 1 ensures the formation in them. opposite phase of clock pulses (1F, 2F, ZF in one section and ZF, 2F, 1F - in the second). This sets the opposite direction for the transfer of accumulated charges in the two photodetector sections 2 and 3 to the corresponding output registers. Thus, there is a simultaneous transfer of video information through output registers 4 and 5 to the inputs of video amplifiers.

Optical filters can be introduced into optical channels. different spectral transmissions or with different orientations of the polarization plane. For example, one filter can be used to analyze vegetation with transmission in the red region of the spectrum (zone noi polishing chlorophyll), and the second - in the infrared region (zone of high reflection of living vegetation). It is advisable to use filters with non-repetitive 4 (mutually additional) transmission areas. DL analysis of water bodies can be used with polarization filters with reversal of the polarization planes at right angles.

The proposed television camera allows stereoscopic, spectral or polarization analysis of the transmitted images. To analyze the combined image, it is advisable to introduce a subtraction unit.

The use of a single CCD array for two image channels ensures the identity of operation modes, the identity of changes in characteristics during aging, the stability of the mutual geometrical characteristics of two image receivers. When replacing photodetectors, the selection of modes of functioning of electronic circuits is simplified:

Claims (3)

Invention Formula one; A television camera containing a light-to-electrical converter is an electrical signal, an optical unit located in front of the optical converter light inlet is an electrical signal and consists of two lenses, each of which is optically connected to one of the halves of the light transformer is an electrical signal and a driver of control signals, the output of which is connected to the control of the converter input light - an electrical signal, characterized in that, in order to simultaneously form two undistorted television signals The converter light is an electrical signal made in the form of a CCD matrix with 1587661 two photodetector sections and two output registers, the control signal driver is made in the form of a pulse shaper, the outputs of which are connected to the control inputs of two photodetector sections of the CCD array in the opposite sequence for these sections, and an electric signal and one An object wrapping an optical element is introduced from objects on its optical axis. 2. Camera pop.1, which differs from TeMj, that between each of the lenses and the light converter - an electrical signal is introduced: a light. filter whose spectral characteristics are different. . 3. Camera according to claim 1, characterized in that a polarization filter is inserted between each of the lenses and the light-electric transducer, a polarization filter, the planarization of which is mutually perpendicular. . A camera according to claim 1, characterized in that a subtracting side is inputted, the first and second inputs of which are connected to the corresponding outputs of the CCD matrix.