Electromagnetically driven shutter with focus adjusting function

Details Electromagnetically driven shutter with focus adjusting function Electromagnetically driven shutter with focus adjusting function

1983-03-16

1985-03-19

Gonzales, John

3541951, 3542341, G03B 310

Patent

active

045055670

ABSTRACT:
In the disclosed electromagnetically driven shutter a shutter release produces a first flow of current that electromagnetically moves a rotor coil arranged in a magnetic field to a position where it unlatches an automatic focusing operation and where it is locked to prevent backward motion. Termination of the focusing condition starts an exposure control arrangement and initiates a second current flow that moves the rotor coil further to control opening and closing of the shutter blades. Thus, two successive current flows coordinate the focus operation and the exposure.

REFERENCES:
patent: 4396267 (1983-08-01), Hirohata et al.
patent: 4401378 (1983-08-01), Hirohata et al.
patent: 4456360 (1984-06-01), Tamura
patent: 4466723 (1984-08-01), Ikari et al.

Affiliated with

Also associated with

Rating

Electromagnetically driven shutter with focus adjusting function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetically driven shutter with focus adjusting function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetically driven shutter with focus adjusting function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-750232