1977-10-06
1978-12-26
Gellner, Michael L.
354 51, G03B 708
Patent
active
041313500
ABSTRACT:
The present invention relates to an exposure control device for a camera for obtaining a proper exposure taking the differences of the films to be used into consideration, so designed that an exposure amount control circuit for controlling an exposure amount by means of a first light measuring circuit for measuring the light reflected from the film plane is provided, while a second light measuring circuit for measuring the light reflected from the shutter plane and/or the film plane is provided in such a manner that by means of the output of the second light measuring circuit the control output value of the exposure amount control circuit is compensated so as to obtain a proper exposure amount.
REFERENCES:
patent: 3730063 (1973-05-01), Kobayashi et al.
Kawana Hiroyoshi
Matsuda Mutsuhide
Ono Yusuke
Suzuki Ryoichi
Tsunekawa Tokuichi
Canon Kabushiki Kaisha
Gellner Michael L.
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