Automatic focus adjustment apparatus

Details Automatic focus adjustment apparatus Automatic focus adjustment apparatus

1986-03-24

1987-09-08

Perkey, W. B.

G03B 300

Patent

active

046920129

ABSTRACT:
An automatic focus adjustment apparatus adapted for use with cameras includes an automatic focusing means for shifting an imaging objective for automatic focusing in response to an output signal from a pair of photo-detectors which receives light radiated from a light emitting element and then reflected from a subject to be photographed. The in-focus range in which the pair of photo-detector means is deemed to receive the substantially equal amount of light is enlarged when the amount of light received by the pair of photo-detector means is smaller than a predetermined amount of light.

REFERENCES:
patent: 4268137 (1981-05-01), Cocron et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2155113