RANGING SENSOR, VEHICLE LAMP, AND RANGING METHOD

摘要

A scanning device 120 includes a motor 122 and a mirror 126 attached to the motor 122 and configured to reflect emitted light L1 of a light source. The scanning device 120 is configured to scan probe light, which is reflected light L2 reflected by the mirror 126, according to the rotation of the motor 122. A photosensor 130 detects return light L3, which is light reflected from a point P on an object OBJ. A processor 140 detects the distance to the point P on the object OBJ based on the output of the photosensor 130. A distance measurement sensor 100 changes the angular resolution Δθ according to the distance to the object OBJ.