Camera diaphragm aperture control device

Details Camera diaphragm aperture control device Camera diaphragm aperture control device

1982-02-24

1983-05-03

Perkey, William B.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

354 42, 354 43, 354202, 361174, 361187, 307360, 328147, G03B 7085, H01H 4724, H03K 5153

Patent

active

043818897

ABSTRACT:
An electromechanical device such as a camera diaphragm control device includes a compensation means which compensates for a time lag from generation of a stop signal to actual stoppage of a movable member such as a diaphragm or a diaphragm drive member. The amount of compensation is varied in accordance with determination of the amount of the movement of the movable member from an initial end position to a position where the movable member is to be stopped. In the case of automatic diaphragm control, the amount to be determined may be the steps from the full open position to a position corresponding to a diaphragm aperture to be determined.

REFERENCES:
patent: 3868702 (1975-02-01), Strauss et al.
patent: 4307948 (1981-12-01), Kitamura et al.

Affiliated with

Also associated with

Rating

Camera diaphragm aperture control device 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 diaphragm aperture control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera diaphragm aperture control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1207336