Piezoelectric camera shutter

Details Piezoelectric camera shutter Piezoelectric camera shutter

1978-09-14

1980-04-15

Gellner, Michael L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310331, 354234, G03B 708

Patent

active

041981405

ABSTRACT:
An exposure control device is disclosed a preferred form of which includes a shutter which is openable to permit scene light to pass through a camera aperture, an electronic circuit for producing a signal which varies with the level of scene illumination, and piezoelectric devices such as bimorphs for providing electrical energy to the circuit when mechanically actuated and for controlling the condition of the shutter in response to the signal from the electronic circuit to automatically establish the exposure period.

REFERENCES:
patent: 3447217 (1969-06-01), Kumada
patent: 3498194 (1970-03-01), Bellows
patent: 3500451 (1970-03-01), Yando
patent: 3518930 (1970-07-01), Thieme et al.
patent: 3553588 (1971-01-01), Honig
patent: 3598030 (1971-08-01), Beach
patent: 3636840 (1972-01-01), Harvey et al.

Affiliated with

Also associated with

Rating

Piezoelectric camera 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 Piezoelectric camera shutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric camera shutter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-473735