Exposure controls for photographic apparatus

Details Exposure controls for photographic apparatus Exposure controls for photographic apparatus

1978-04-20

1979-08-21

Griffin, Donald A.

354149, 354289, G03B 700, G03B 1503, G03B 1700

Patent

active

041651669

ABSTRACT:
A photographic apparatus wherein the diaphragm is adjustable by a reciprocable selector which is provided with indicia denoting the scene brightness and the distance from the subject. The shutter is adjustable in dependency on the position of the selector, in dependency on the speed of film which is confined in the apparatus and in dependency on the condition of the apparatus, namely, whether the apparatus is set for the making of exposures in daylight or with flash. Cassettes which are used in the apparatus have markers denoting the film speed, and such markers influence the position of a reciprocable follower which can pivot a control lever loosely coupled to a shutter adjusting lever. The latter is pivotable by the control lever or by a motion transmitting lever whose position changes when a flashcube is attached to or detached from the housing of the apparatus.

REFERENCES:
patent: 3443498 (1969-05-01), Bihlmaier
patent: 4000497 (1976-12-01), Galbraith
patent: 4101914 (1978-07-01), Yamashita et al.
patent: 4121230 (1978-10-01), Ohmura et al.

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