Lidar sensor that measures horizontal angle using step difference and light reflectance

Abstract

The present exemplary embodiments propose a LIDAR sensor including: a transmission/reception module which transmits transmission light and receives reflection light reflected from an object; a reflector assembly which has an empty space to assemble the transmission/reception module at one side, receives the transmission light from the transmission/reception module to reflect the transmission light toward the object and transmits the reception light reflected from the object to the transmission/reception module, a rotary module assembly which rotates the transmission/reception module and generates an RPM and a rotation angle based on a light reception amount of the reflection light which is received by a sensor unit by reflecting the transmitted light; and a fixing module which supports the transmission/reception module and the rotary module.