Detection device

Abstract

According to an aspect, a detection device includes: an optical sensor; a first light source and a second light source that are configured to emit light to the optical sensor; and a detection circuit that is coupled to the optical sensor and is configured to output a sensor value corresponding to a photocurrent output from the optical sensor in each of a plurality of readout periods provided in a time-division manner. The first light source and the second light source are configured to be alternately lit for each of the readout periods, and to be lit a plurality of times in a pulsed manner in each of the readout periods. The detection circuit is configured to measure an integrated value or an average value of the photocurrent output in response to the light lit in a pulsed manner in each of the readout periods.

Dependencies are inferred from the claim text.