Light measuring device variably controlled according to focus mode selection

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United States of America Patent

PATENT NO 4774401
SERIAL NO

06894613

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Abstract

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A light measuring device having an automatic focus control mechanism including one-shot type focus control means for effecting focus control in one-shot type focus control mode and servo type focus control means for effecting focus control in servo type focus control mode, in which a field to be photographed is divided into a plurality of areas which are subjected to light-measurement, and a control circuit is provided to vary weighting for light-measurement of these divided areas according to the selection of the above-mentioned focus control mode effected by said automatic focus control mechanism.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aihara, Yoshihiko Kanagawa, JP 54 706
Hayakawa, Shingo Kanagawa, JP 27 377
Kiyohara, Shuichi Kanagawa, JP 9 111
Yamada, Akira Kanagawa, JP 366 5153

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