Apparatus for controlling an operation of a shutter

Details Apparatus for controlling an operation of a shutter Apparatus for controlling an operation of a shutter

1994-12-13

1996-09-17

Gellner, M. L.

354260, G03B 908, G03B 958

Patent

active

055573606

ABSTRACT:
A shutter operation control apparatus of the present invention includes at least two shutter sectors between which a size of an aperture is defined. The apparatus comprises a shutter control plate which is moved in one direction upon a shutter release operation, and a sector cam surface formed on the upper surface of the shutter control member. The sector cam surface is provided for changing the size of the aperture according to a profile of the sector cam surface. The profile includes a curved surface which is capable of reducing an opening rate of the aperture while the size of the aperture is set to be small.

REFERENCES:
patent: 3838436 (1974-09-01), Ogihara et al.
patent: 3856393 (1974-12-01), Ogihara et al.
patent: 3868712 (1975-02-01), Biber
patent: 3911458 (1975-10-01), Imai et al.
patent: 3927415 (1975-12-01), Peterson
patent: 4044368 (1977-08-01), Inoue
patent: 4212522 (1980-07-01), Kitai et al.
patent: 4342506 (1982-08-01), Johnson et al.
patent: 4727389 (1988-02-01), Raschke
patent: 5023648 (1991-06-01), Meguro et al.
patent: 5317353 (1994-05-01), Kobayashi et al.
English Language Abstract of Japanese Publication No. 54-71626.

Affiliated with

Also associated with

Rating

Apparatus for controlling an operation of a shutter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for controlling an operation of a shutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling an operation of a shutter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-416965