Program shutter

Details Program shutter Program shutter

1987-12-14

1989-09-05

Adams, Russell E.

354452, G03B 708

Patent

active

048643467

ABSTRACT:
There is disclosed a program shutter for use in a camera. The program shutter consists of a shutter mechanism and a control portion. The shutter mechanism has sectors for defining an opening and a stepper motor for driving the sectors. The control portion produces pulses having pulse width conforming to the operating characteristic of the shutter mechanism. These pulses are used to step the motor forward or backward according to the exposure corresponding to the luminance of the subject.

REFERENCES:
patent: 4648701 (1987-03-01), Ogihara et al.
patent: 4693583 (1987-09-01), Ogihara et al.
patent: 4696560 (1987-09-01), Ogihara et al.
patent: 4697908 (1987-10-01), Ogihara et al.
patent: 4720726 (1988-01-01), Sato et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-246809