Electromagnetically driven shutter

Details Electromagnetically driven shutter Electromagnetically driven shutter

1980-10-17

1981-12-22

Griffin, Donald A.

354152, 354246, G03B 908, G03B 940, G03B 1912

Patent

active

043067972

ABSTRACT:
A focal plane shutter mechanism for a single lens reflex camera has its shutter blades driven by an electromagnetic driving source, with setting of shutter blades to their running start positions being mechanically effected in association with mirror driving means thereby diminishing power consumption, and with the shutter blades being electromagnetically driven only during a film exposure.

REFERENCES:
patent: 3768390 (1973-10-01), Kobori
patent: 3922693 (1975-11-01), Matsui
patent: 3967298 (1976-06-01), Adamski
patent: 4236797 (1980-12-01), Noack et al.
patent: 4264159 (1981-04-01), Ueda et al.

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