Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1992-06-26
1993-08-31
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
354404, H01J 4014
Patent
active
052411680
ABSTRACT:
A focus detecting apparatus in which a pair of bundles of rays, transmitted through different portions of an exit pupil of a taking lens, are transmitted through a common focus detecting zone on a predetermined focal plane of the taking lens and converged onto corresponding line sensors through a condenser lens and separator lenses to re-image the image formed on the predetermined focal plane of the taking lens into two separate images. A light deflector is provided between the taking lens and the separator lenses to deflect an optical path of the bundles of rays to make the bundles of rays incident upon the separator lenses and the corresponding line sensors.
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Asahi Kogaku Kogyo Kabushiki Kaisha
Nelms David C.
Shami K.
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