Patent ID: 6567617
Filing Date: 2003-05-20
Classification: G03B

Abstract:
A photometry device for a camera, comprising:a normal light sensor that performs photometry with respect to an object; an exposure amount determining system that determines an exposure amount of the object in accordance with an output of said normal light sensor; a plurality of colorimetric sensors that detect a color of the object by performing colorimetry with respect to an image of the object which is formed by a photographing lens of the camera, said plurality of colorimetric sensors having spectral sensitivity characteristics that are different from each other; an external light sensor that measures an external light illuminating the object at spectral sensitivity characteristics respectively corresponding to said plurality of colorimetric sensors; a light source color compensation amount determining system that determines light source color compensation amount in accordance with the output of said external light sensor; a light source effect compensation system that compensates for the outputs of said colorimetric sensors with the light source color compensation amount; a colorimetry compensation amount determining system that determines a color of the object based on the output of said calorimetric sensors as compensated by said light source effect compensation system, and then determines a calorimetric compensation amount based on the determined color; an exposure amount compensation system that compensates for the exposure amount determined by said exposure amount determining system in accordance with the colorimetric compensation amount, wherein said light source color compensation amount determining system changes the light source color compensation amount in accordance with an object distance.