Shutter drive safety device for a camera

Details Shutter drive safety device for a camera Shutter drive safety device for a camera

1982-02-10

1983-12-13

Mathews, A. A.

354244, 3542341, G03B 934, G03B 1738

Patent

active

044202350

ABSTRACT:
A safety device is provided for a shutter drive mechanism for camera in which a shutter opening member and a shutter closing member are independently operable, with an exposure period controlled by a time interval between times of initiation of operation of the both members. The safety device includes a constraining member which locks a detent member which controls the operation of the shutter closing member in response to a film winding operation and which unlocks the detent member in response to a shutter release operation.

REFERENCES:
patent: 3913117 (1975-10-01), Endo et al.
patent: 4096503 (1978-06-01), Sato
patent: 4215925 (1980-08-01), Date et al.

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