Light receiving element and ranging module

A ranging module comprising:

• a light receiving element including
• a first tap to which a first voltage is applied,
• a second tap to which a second voltage different from the first voltage is applied,
• a first photoelectric conversion unit configured to detect a charge generated by photoelectric conversion according to a voltage applied to the first tap and a light amount of incident light,
• a second photoelectric conversion unit configured to detect a charge generated by photoelectric conversion according to a voltage applied to the second tap and a light amount of incident light,
• a plurality of accumulation units configured to accumulate the charges generated by the first photoelectric conversion unit and the second photoelectric conversion unit,
• a plurality of transmission units configured to transmit the charges generated by the first photoelectric conversion unit and the second photoelectric conversion unit to the plurality of accumulation units, and
• a calculation unit configured to execute calculation based on the charges accumulated in the plurality of accumulation units, which is the charge of one of the first photoelectric conversion unit and the second photoelectric conversion unit among the charges accumulated in the plurality of accumulation units;
• a light source configured to radiate irradiation light of which a brightness periodically changes;
• and
• a light emission control unit configured to control an irradiation timing of the irradiation light.