Camera having an electromagnetically driven shutter

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

1981-01-26

1982-06-15

Adams, Russell E.

354247, G03B 908

Patent

active

043347495

ABSTRACT:
A camera having an electromagnetic driving source for operating a focal plane shutter in the camera, includes a shutter base plate and a driving arm pivoted on the base plate for swinging movement in a plane parallel to the plate. A group of thin shutter blades are supported on the driving arm parallel to the surface of the base plate. The output shaft of a motor is coupled with the driving arm, and either one of the rotor of the motor, or a permanent magnet forming a part of the stator of the motor, provides magnetic flux parallel to the axis of the output shaft, thereby causing the rotor to rotate the output shaft and drive the focal plane shutter.

REFERENCES:
patent: 3673942 (1972-07-01), Tingley
patent: 4149794 (1979-04-01), Takahama et al.
patent: 4220409 (1980-09-01), Inoue
patent: 4268153 (1981-05-01), Sugiura et al.

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