Photographic apparatus

Details Photographic apparatus Photographic apparatus

1985-11-27

1987-10-06

Perkey, W. B.

354432, 354479, G03B 300, G03B 7099

Patent

active

046979050

ABSTRACT:
A photographic apparatus in which light entering through an objective is used in photo-electrically detecting the state of focus of a range finder area in the view field, whereby a mask for defining that area is arranged in the effective light beam at or near a predetermined focal plane of the objective and is made to serve as a light meter of thin film form constituting part of an exposure control system.

REFERENCES:
patent: 4104651 (1978-08-01), Matsumoto et al.
patent: 4414470 (1983-11-01), Nakaoka

Affiliated with

Also associated with

Rating

Photographic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2114302