Method and apparatus employing dual photocells for removing...

Details Method and apparatus employing dual photocells for removing... Method and apparatus employing dual photocells for removing...

G - Physics

03

B

95/53.2

G03B 7/08 (2006.01) G03B 7/16 (2006.01)

Patent

CA 1150555

6209 ABSTRACT OF THE DISCLOSURE Method and apparatus for automatically switching between alternate ones of a pair of light sensing photocells having different photoresponsive characteristics in an exposure control system usable with a photographic apparatus. Included in the system is a light integrating circuit responsive to a first one of the photocells until commencement of a flash mode and then to the other until termination of such flash mode at which time the circuit is again responsive to the first photocell.

367610

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