Analogue operation adjusting means for photographic camera

Details Analogue operation adjusting means for photographic camera Analogue operation adjusting means for photographic camera

1977-03-07

1978-08-15

Gellner, Michael L.

354 60R, G03B 708

Patent

active

041077075

ABSTRACT:
In a photographic camera provided with an exposure control circuit employing an analogue type arithmetic unit, film speed, aperture size and scene brightness are put into the circuit in the analogue form. In order to compensate for the errors caused by the manufacturing error, a single adjusting element is incorporated into the circuit. The single adjusting element is composed of an additional information input device which is able to input an additional factor into the arithmetic unit independently of the other exposure factors such as the film speed, aperture size and the scene brightness.

REFERENCES:
patent: 3863263 (1975-01-01), Itagaki
patent: 4011569 (1977-03-01), Mashimo et al.

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