Color temperature detecting device wherein comparison is made between color component levels and reference levels which vary with the illuminance of incident light

摘要

A color temperature detecting device comprises a plurality of color detectors for detecting levels of a plurality of color components included in light incident thereon, a comparator for comparing levels of the plurality of color components with respective reference levels; a device for detecting the illuminance level of the incident light and a controller for changing the reference levels correspondingly with the detected illuminance level.