A range imaging device (1) includes a
light source unit (2) that emits light pulses; a light-receiving unit (3) that includes at least one pixel circuit (321) and a pixel drive circuit (322), the at least one pixel circuit (321) including a
photoelectric conversion element (PD) that generates charge according to incident light, and charge integration units (CS 1, CS2, CS3 and CS4) in which the charge is integrated, the pixel drive circuit (322) distributing the charge generated in the
photoelectric conversion element (PD) to the charge integration units (CS1, CS2, CS3 and CS4) via transfer transistors (G1, G2, G3 and G4) at a timing synchronized with the light pulses; and a distance calculation unit (43) that calculates a distance between an object (S) and the light-receiving unit (3), based on a charge ratio of charge generated in the
photoelectric conversion element (PD) due to reflected light and distributed to the charge integration units (CS1, CS2, CS3 and CS4) via the transfer transistors (G1, G2, G3 and G4) for integration therein, wherein the light pulses have a width set to be larger than a period between a rise of a specific transfer
transistor (G1, G2, G3 or G4) and a rise of the subsequently rising transfer
transistor (G1, G2, G3 or G4) among the transfer transistors (G1, G2, G3 and G4).