Device and method for phase adjustment

摘要

A luminance level detecting unit calculates a luminance of a digital imaged signal in a plurality of pixels within a first pixel region of an imaging element. A variation calculating unit calculates a variation value indicating signal variation of the digital imaged signal in a plurality of pixels within a second pixel region in the imaging element. A timing adjusting unit adjusts the phase of a pulse based on the result of calculation of the luminance level detecting unit and the result of calculation of the variation calculating unit.