Exposure time control device for camera

Details Exposure time control device for camera Exposure time control device for camera

1980-04-30

1982-09-14

Adams, Russell E.

354 23D, 354 50, 354238, G03B 962

Patent

active

043492630

ABSTRACT:
In the exposure time control device disclosed, a first timer sets a first time interval equal to a desired exposure time but establishes an exposure time in the shutter different from the desired exposure time. A second timing arrangement forms a compensation time interval. Suitable means maintain the opening of the shutter for a total time equal to the given time interval and the compensation time interval so that the shutter is open for the desired exposure time. A control shortens the given time interval formed by the first timing arrangement by a predetermined time interval so that the given time interval formed is shorter than the desired exposure time. This permits compensation not only for errors which tend to shorten the exposure time, but also those which tend to lengthen the exposure time.

REFERENCES:
patent: 3683767 (1972-08-01), Sahara
patent: 4034383 (1977-07-01), Mashimo et al.

Affiliated with

Also associated with

Rating

Exposure time control device for camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exposure time control device for camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exposure time control device for camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2152877