Video camera device having an exposure control circuit

Details Video camera device having an exposure control circuit Video camera device having an exposure control circuit

1993-02-25

1995-03-21

Mancuso, Joseph

Television

Camera, system and detail

Optics

348255, H04N 5238, H04N 5232

Patent

active

054000742

ABSTRACT:
A video camera device includes an image signal level varying circuit for varying the signal level of an image signal; image signal level detecting circuit for detecting the signal level of the image signal; zoom lens position detecting circuit for detecting the position of a zoom lens; and brightness correcting circuit supplied with an output from the zoom lens position detecting means for correcting a brightness attenuating characteristic of the zoom lens responsive to the position of the zoom lens. The gain of the image signal level varying circuit is varied by an output of the image signal level detecting circuit and an output of the brightness correcting circuit.

REFERENCES:
patent: 5093716 (1992-03-01), Kondo et al.
patent: 5258848 (1993-11-01), Kondo et al.

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