Color television camera

Details Color television camera Color television camera

1982-01-06

1984-03-13

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358209, 358211, H04N 306

Patent

active

044371110

ABSTRACT:
A color television camera comprises a color pickup device such as color pickup tube, an automatically detachable infrared cut filter disposed in the light path to an image receiving face of the pickup device, a brightness detection means which changes its output signal when brightness becomes under a certain predetermined level, a driving means for driving the automatically detachable infrared-cut filter to be removed from the light path to the image receiving face, and a video signal circuit including a switching circuit to operate in such a manner to switch the circuit to constitute a color video signal producing circuit when the brightness is over the predetermined level and accordingly the infrared-cut filter is inserted in front of the image receiving face, and on the other hand to switch the circuit to constitute a monochrome video signal producing circuit when the brightness is below the predetermined level and accordingly the infrared-cut filter is removed from the front of the image receiving face.

REFERENCES:
patent: 3988776 (1976-10-01), Shinozaki
patent: 4016597 (1977-04-01), Dillon
patent: 4293876 (1981-10-01), Williams

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