Optical device

Abstract

An optical device includes a light emitting unit that has plural light emitting elements to irradiate, with light, each of plural divided regions into which an irradiation region is divided and to emit the light with which an object is irradiated, a light receiving unit that has plural light receiving elements to receive reflected light of the light with which the object is irradiated, and a light emission control unit that controls, in a region in which a light-receiving region of the reflected light in the object does not overlap with an irradiation region of the light with which the object is irradiated, light emission of the light with which the divided region, which is included in a target region corresponding to the irradiation region, is irradiated.

Dependencies are inferred from the claim text.