Exposure counter and flash inhibiting means for a photographic a

Details Exposure counter and flash inhibiting means for a photographic a Exposure counter and flash inhibiting means for a photographic a

1976-12-30

1978-02-21

Gonzales, John

354268, G03B 1736

Patent

active

040756475

ABSTRACT:
An exposure counter for use in a camera which provides a user with information as to the number of unexposed film units remaining within a film cassette, positioned within the camera. The exposure counter includes an indicia-bearing member which is indexed subsequent to each exposure of a forwardmost film unit included within the film cassette. A pawl is provided for automatically unlatching the exposure counter for movement to a starting position upon removal of the film cassette from within the camera.
The camera includes an exposure actuator for actuating an electronic exposure control system included therein whereby the forwardmost film unit is exposed, processed and advanced to the exterior of the camera.
The exposure counter is mounted such that the position of the exposure actuator is responsive to the angular disposition of the indicia-bearing member of the exposure counter. Therefore, the exposure counter communicates motion to the exposure actuator which in turn assumes a definite series of positions when the exposure counter assumes a corresponding series of angular dispositions. In one of the positions assumed by the exposure actuator, a dark slide cover is automatically removed and advanced to the exterior of the camera when a new cassette is loaded into the camera and its loading door secured, and in another one of the positions the exposure actuator is inhibited from further actuation thereby providing a mechanical exposure and flash inhibit for the camera.

REFERENCES:
patent: 3643567 (1972-02-01), Douglas
patent: 3984852 (1976-10-01), Johnson et al.

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