1991-08-28
1993-09-07
Adams, Russell E.
354418, 3541451, 354414, G03B 700
Patent
active
052433765
ABSTRACT:
A photometry apparatus in a camera includes a light receiving portion having a plurality of light receiving elements for flash photographing, and a plurality of amplifiers for amplifying the outputs of the light receiving elements, respectively, and is provided with a push button switch for selecting one or more of the light receiving elements, a photographing data setting dial rotated while the push button switch is pushed, and a display device for displaying the set state of the dial, and is further provided with a central processing unit for converting a digital signal into an analog value through a digital-analog converter and variably controlling the output voltage thereof so that the outputs of the light receiving elements may be the same in order to change the amplification factor or factors of the amplifier or amplifiers corresponding to the selected light receiving element or elements so as to make up for the outputs of the light receiving elements which have not been selected.
REFERENCES:
patent: 4862206 (1989-08-01), Ootsuka et al.
patent: 5006879 (1991-04-01), Takagi et al.
Adams Russell E.
Nikon Corporation
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