Focus detecting device

Details Focus detecting device Focus detecting device

1983-02-25

1984-07-17

Adams, Russell E.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250201, G03B 300, G03B 1318

Patent

active

044602600

ABSTRACT:
A focus detecting device for detecting the focus position of an image forming system comprises plural arrays of small lenses, plural units of photoelectric elements respectively corresponding to the small lenses of the lens arrays and a synthesizing device. Each of the arrays includes plural small lenses arranged in a predetermined direction in the vicinity of a focal plane of the image forming system and the plural lens arrays are positioned mutually parallel. Each of the plural units of photoelectric elements is positioned behind the corresponding one of the small lenses. The synthesizing device synthesizes photoelectric output signals from the units of photoelectric element behind the positionally corresponding small lenses belonging to the plural lens arrays.

REFERENCES:
patent: 4310227 (1982-01-01), Zinchuk

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1488190