Focus detecting apparatus

Details Focus detecting apparatus Focus detecting apparatus

1987-07-07

1989-03-14

Perkey, W. B.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250201, 250204, G03B 300, G01J 120

Patent

active

048128694

ABSTRACT:
First and second light distributions having their relative positional relation varying in conformity with the focus adjusted state of an objective optical system and based on an object are received by a plurality of picture elements, and the range of use of the picture element row can be changed when a value indicative of the focus adjusted state is calculated by the use of the signals from the picture elements.

REFERENCES:
patent: 4246476 (1981-01-01), Stauffer
patent: 4305657 (1981-12-01), Masunaga et al.
patent: 4475800 (1984-10-01), Kinoshita et al.
patent: 4483602 (1984-11-01), Aoki et al.
patent: 4483604 (1984-11-01), Hiramatsu
patent: 4523829 (1985-06-01), Eguchi et al.
patent: 4563576 (1986-01-01), Matsumura et al.
patent: 4573784 (1986-03-01), Suzuki
patent: 4614975 (1986-09-01), Kaite

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-896951