Electro-magnetically driven shutter

Details Electro-magnetically driven shutter Electro-magnetically driven shutter

1985-06-05

1987-02-17

Gellner, Michael L.

G03B 962

Patent

active

046435530

ABSTRACT:
An electro-magnetically driven shutter is arranged to make an exposure by driving shutter blades to travel with driving members with power supply effected to an electro-magnetic drive source and to cut off the power supply upon completion of the travel of the shutter blades. The shutter blades are kept in their travel completed positions by locking the driving members with spring members and then, in response to a film winding action, the driving members are unlocked by pushing back the driving members in a travel starting direction with the shutter blades being brought by inertia back to their travel start positions respectively.

REFERENCES:
patent: 4133608 (1979-01-01), Tanaka
patent: 4302090 (1981-11-01), Kiuchi et al.
patent: 4306797 (1981-12-01), Sugiura et al.
patent: 4364654 (1982-12-01), Senuma et al.
patent: 4487492 (1984-12-01), Toyoda et al.

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