1986-03-24
1987-05-26
Gellner, Michael L.
G03B 310
Patent
active
046680683
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 light energy from the light emitting element is controlled by a radiance control means in such a manner that it radiates a diminished energy for a period of time and then restores its light energy.
REFERENCES:
patent: 4613225 (1986-09-01), Kawabata
Fujita Akihiro
Tano Touru
Utsumi Takayuki
Adams Bruce L.
Burns Robert E.
Gellner Michael L.
Kowa Company Ltd.
Lobato Emmanuel J.
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