A light receiving apparatus comprising: a light receiving unit that includes a light receiving element; a light emission control unit that is configured to issue a trigger for causing a light source to emit light; a receiving unit that is configured to receive, from a light source unit that includes the light source, a feedback signal that is output in accordance with a light emission timing at which the light source emits the light; a delay acquiring unit that is configured to acquire a delay time of a reception timing, at which the feedback signal is received by the receiving unit, that is delayed relative to an issue timing at which the trigger is issued; a representative value acquiring unit that is configured to acquire a representative value of a plurality of pieces of the delay time acquired by the delay acquiring unit in accordance with the issue of the triggers issued by the light emission control unit a predetermined number of times; and a signal processing unit that is configured to perform signal processing on the basis of a light emission timing based on the trigger for causing the light source to emit light, and a light receiving timing of the light receiving element, wherein the signal processing unit is configured to correct the light emission timing on the basis of the representative value, characterized in that the receiving unit includes: a first receiving unit and a second receiving unit, both units configured to receive the feedback signal, wherein the second receiving unit is configured such that the pulse width of the feedback signal conforms to a case of a pulse width that is narrower than the pulse width that can be controlled by the first receiving unit; and a switching unit configured to select, in accordance with the pulse width of the feedback signal, an output signal that is output from one of the first receiving unit and the second receiving unit, and to output said output signal to the delay acquiring unit to acquire the delay time of the reception timing. a light receiving unit that includes a light receiving element; a light emission control unit that is configured to issue a trigger for causing a light source to emit light; a receiving unit that is configured to receive, from a light source unit that includes the light source, a feedback signal that is output in accordance with a light emission timing at which the light source emits the light; a delay acquiring unit that is configured to acquire a delay time of a reception timing, at which the feedback signal is received by the receiving unit, that is delayed relative to an issue timing at which the trigger is issued; a representative value acquiring unit that is configured to acquire a representative value of a plurality of pieces of the delay time acquired by the delay acquiring unit in accordance with the issue of the triggers issued by the light emission control unit a predetermined number of times; and a signal processing unit that is configured to perform signal processing on the basis of a light emission timing based on the trigger for causing the light source to emit light, and a light receiving timing of the light receiving element, wherein the signal processing unit is configured to correct the light emission timing on the basis of the representative value, characterized in that the receiving unit includes: a first receiving unit and a second receiving unit, both units configured to receive the feedback signal, wherein the second receiving unit is configured such that the pulse width of the feedback signal conforms to a case of a pulse width that is narrower than the pulse width that can be controlled by the first receiving unit; and a switching unit configured to select, in accordance with the pulse width of the feedback signal, an output signal that is output from one of the first receiving unit and the second receiving unit, and to output said output signal to the delay acquiring unit to acquire the delay time of the reception timing. a first receiving unit and a second receiving unit, both units configured to receive the feedback signal, wherein the second receiving unit is configured such that the pulse width of the feedback signal conforms to a case of a pulse width that is narrower than the pulse width that can be controlled by the first receiving unit; and a switching unit configured to select, in accordance with the pulse width of the feedback signal, an output signal that is output from one of the first receiving unit and the second receiving unit, and to output said output signal to the delay acquiring unit to acquire the delay time of the reception timing.