Focus detection apparatus having multiple detecting zones

Details Focus detection apparatus having multiple detecting zones Focus detection apparatus having multiple detecting zones

1993-07-02

1994-06-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

354407, G01J 120

Patent

active

053212487

ABSTRACT:
A focus detecting apparatus, characterized in that it comprises, multiple detecting zones situated in a focal plane, an orientation changing mechanism which changes the orientations of images formed in these zones, an image separating device which separate these images into image pairs, and multiple sensors, having a different positional relationship to that of the multiple detecting zones, which detect the image pairs.

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