WAVELENGTH DETECTING APPARATUS AND FOCUS DETECTING APPARATUS HAVING THE SAME

摘要

PURPOSE: A wavelength detecting apparatus and a focus detecting apparatus with the same are provided to accurately focus a subject even though a wavelength component of a light source which illuminates a subject is largely deviated from a wavelength corresponding to green sensitive to eyes of a person. CONSTITUTION: A light splitting unit(410) splits light according to a wavelength. An imaging lens(420) images light split by the light splitting unit on a sensor unit. A wavelength calculating unit(440) calculates a main wavelength of light entering a photographing apparatus according to wavelength distribution sensed by the sensor unit. The light split by the light splitting unit is successively imaged on the sensor unit according to a wavelength.