Exposure control system for single lens reflex cameras

Details Exposure control system for single lens reflex cameras Exposure control system for single lens reflex cameras

1981-04-27

1982-04-20

Gellner, Michael L.

354 33, 354 51, G03B 7083, G03B 7099, G03B 1505

Patent

active

043256155

ABSTRACT:
A through-the-lens type automatic exposure control system controls exposure time in accordance with an object light representative signal stored in a storage device prior to a shutter actuation, with respect to exposure time faster than a given value, and in accordance with the output of a light measuring circuit measuring the object light passing through the camera objective and reflected from a film surface, with respect to exposure time slower than the given value. In response to a manual operation, the light signal is stored in the storage device independently of camera release operation, with the exposure time being controlled in accordance with the stored signal regardless of the exposure time.

REFERENCES:
patent: 3842424 (1974-10-01), Tsunekawa et al.
patent: 4079389 (1978-03-01), Hashimoto et al.
patent: 4104654 (1978-08-01), Maitani et al.

Affiliated with

Also associated with

Rating

Exposure control system for single lens reflex cameras 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 control system for single lens reflex cameras, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exposure control system for single lens reflex cameras will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1261159