Low light level color image television system including electron

Details Low light level color image television system including electron Low light level color image television system including electron

1991-02-26

1991-09-24

Kostak, Victor R.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 82, 358110, 358211, H04N 146

Patent

active

050518216

ABSTRACT:
Low light level television system to detect the nocturnal light reflected from objects, comprising a main channel and acting on an extended range of wavelengths, provided with a low light level pick-up or detector tube, and a color channel, acting on a limited range of wavelengths, intended to bring forth the color for the formation of color images on a television monitor. The color channel includes an optical filter, which optical filter eliminates the infrared part of the reflected nocturnal light spectrum, a further low light level pick-up or detector tube, an electronic filter acting on the signal supplied by this further pick-up tube, the two tubes being placed side-by-side and being synchronized. The main and the color channels each act on a color channel of the monitor. The electronic filter provides a temporal integration over several fields. A processing circuit can combine the signals coming from the main and the color channels to act on a third color channel of the monitor.

REFERENCES:
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IBM Technical Disclosure Bulletin, vol. 13, No. 3, Aug. 1970, pp. 612-613.

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