Automatic exposure control apparatus for daylight/underwater cam

Details Automatic exposure control apparatus for daylight/underwater cam Automatic exposure control apparatus for daylight/underwater cam

1990-04-09

1991-03-12

Hix, L. T.

354 64, G03B 708, G03B 1708

Patent

active

049996649

ABSTRACT:
In a camera for daylight and underwater photography, an exposure control aparatus is adjusted automatically to change an exposure parameter as a function of increased water pressure. Preferably, a pressure sensitive member is mechanically connected to a multi-blade diaphragm to continuously increase the size of a lens opening as the camera is further submerged underwater.

REFERENCES:
patent: 4634253 (1987-01-01), Tamamura

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