Photometry device of camera

Details Photometry device of camera Photometry device of camera

1998-03-10

1999-11-16

Perkey, W. B.

Photography

Exposure control circuit

Color temperature compensation or detection

396234, 396 63, 396 65, G03B 700

Patent

active

059872659

ABSTRACT:
A photometry device of a camera has a photometry circuit which measures the luminance value of the object field, a colorimetry circuit which measures the color balance of the object field, and a scene discrimination unit which discriminates the scene on the basis of the output from the colorimetry circuit. The device calculates the proper exposure value of the object field on the basis of the outputs from the photometry circuit and scene discrimination unit. Scene discrimination is preferably made using photographing mode information, photographing distance information, or current time information to improve discrimination accuracy.

REFERENCES:
patent: 5596387 (1997-01-01), Takagi
patent: 5606391 (1997-02-01), Aoki et al.

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