Camera shutter with oscillation damping

Details Camera shutter with oscillation damping Camera shutter with oscillation damping

1993-04-05

1994-11-15

Gellner, Michael L.

3542341, G03B 908

Patent

active

053652983

ABSTRACT:
A camera including a combined shutter and adjustable aperture is characterized by resilient means for uniformly dampening oscillations during operation. The combined shutter and aperture includes a stepper motor that drives a plurality of blades between a closed aperture blocking position and a plurality of open aperture defining positions. The blades and stepper motor are coupled by a drive train that increases friction in the drive train uniformly in all positions of the blades. A counter weight is provided for balancing inertial forces on said ring.

REFERENCES:
patent: 2882808 (1959-04-01), Hillman
patent: 3952312 (1976-04-01), Douglas
patent: 4107705 (1978-08-01), Hashimoto et al.
patent: 4218121 (1980-08-01), Nakagawa et al.
patent: 4621916 (1986-11-01), Petersen
patent: 4751544 (1988-06-01), Saito
patent: 4779114 (1988-10-01), Kobayashi
patent: 5045873 (1991-09-01), Shinozaki et al.

Affiliated with

Also associated with

Rating

Camera shutter with oscillation damping does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Camera shutter with oscillation damping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera shutter with oscillation damping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1101249