Camera having an electromagnetically driven shutter

Details Camera having an electromagnetically driven shutter Camera having an electromagnetically driven shutter

1982-05-25

1984-06-05

Adams, Russell E.

3542341, G03B 310

Patent

active

044525214

ABSTRACT:
A camera having a driving member to open and close shutter blades is operated to open a shutter by a force of a spring at a movement speed independently of that of a movable member at a time power is supplied to an electromagnetic driving source, the movable member operating to charge a second spring to return the shutter blade driving member, which second spring charges the first spring, the arrangement being such that the movable member can control the action of an automatic focusing mechanism.

REFERENCES:
patent: 3762299 (1973-10-01), Douglas
patent: 4209242 (1980-06-01), Kitai et al.
patent: 4348094 (1982-07-01), Hirohata et al.
patent: 4396267 (1983-08-01), Hirohata et al.

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