Proximity detection device

A proximity detection device configured to detect an object that is in proximity thereto using a plurality of light emitting elements and light receiving elements receiving reflected light obtained by reflection of irradiation light from corresponding light emitting elements of the plurality of light emitting elements by the object, the proximity detection device comprising:

• a drive unit configured to sequentially drive the light emitting elements of the plurality of light emitting elements, where the light emitting elements of the plurality of light emitting elements are arranged linearly in a horizontal direction;
• a measurement unit configured to measure detection levels of the light receiving elements when the light emitting elements of the plurality of light emitting elements sequentially emit light, respectively;
• an estimation unit configured to estimate a position of the object in the horizontal direction on the basis of a plurality of measurement results of the measurement unit;
• and
• a correction unit configured to correct the position estimated by the estimation unit,
• wherein the correction unit is configured to correct the estimated position so that a larger correction is made as the estimated position is closer to one side in the horizontal direction, and so that a smaller correction is made as the estimated position is closer to the other side in the horizontal direction that is opposite to the one side.