Video picture generator photodetector

Details Video picture generator photodetector Video picture generator photodetector

1980-12-31

1982-12-07

Murray, Richard

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 314

Patent

active

043630340

ABSTRACT:
Camera having means for the automatic regulation of the sensitivity of a charge transfer detector functioning by vertical frame transfer. These means comprise a loop for controlling the video signal by varying the integration time of electrons in the image area of the CTD sensor, as well as an optical attenuating device for chopping said area during each period of transferring the collected charges into the store. The attenuator has at least one fixed disk and one movable disk controlled in rotation, the disks carrying optical densities or being made of polarizers.

REFERENCES:
patent: 3904818 (1975-09-01), Kovac
patent: 4010319 (1977-03-01), Levine
patent: 4171529 (1979-10-01), Silberberg et al.

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