Photodetection device

Abstract

A device capable of improving characteristics of a light sensor by applying an appropriate bias voltage to the light sensor. A device according to one embodiment includes a first light source configured to emit a first light, a second light source configured to emit a second light having a first characteristic different from a second characteristic of the first light, a first light sensor configured to detect first reflected light that is the first light emitted from the first light source and reflected by an object, and a second light sensor configured to detect second reflected light that is the second light emitted from the second light source and reflected by a first member that is distinct from the object.

Dependencies are inferred from the claim text.