HIGH-EFFICIENCY, NON-ROTATING SCANNING LIDAR SYSTEM HAVING WIDE VIEWING ANGLE STRUCTURE

摘要

A lidar system provided in the present invention is characterized by comprising a light emitting unit, a light receiving unit, and a control device for controlling the operation of each of the light emitting unit and the light receiving unit. The light emitting unit comprises: a plurality of light emitting elements which are disposed spaced apart from each other and each discharge a laser beam; a plurality of driving devices controlling the operations of the plurality of light emitting elements, respectively; a plurality of collimating lenses respectively collimating the laser beams respectively discharged from the plurality of light emitting elements; and a first reflecting part for continuously modifying the reflected direction of each of the collimated laser beams within a predetermined angle range and continuously scanning each of a plurality of predetermined regions of a subject spaced apart from each other. The light receiving unit comprises: a second reflecting part for continuously modifying each of the laser beams, reflected from the plurality of predetermined regions of the subject, within the predetermined angle range and reflecting same; a plurality of light receiving lenses for receiving each of the laser beams reflected by the second reflecting part; a plurality of light detectors disposed spaced apart from each other and respectively detecting the light beams that have passed through the plurality of respective light receiving lenses; and a plurality of reading members reading the respective laser beams detected by the plurality of light detectors. The control device controls, in a synchronized manner, the operation of each of the first reflecting part and the second reflecting part, which continuously modify the reflected direction of the respective laser beams, so that the laser beams reflected by the second reflecting part are vertically incident on the plurality of light detectors, respectively. Two or three of each of the plurality of light emitting elements, the plurality of driving devices, the plurality of collimating lenses, the plurality of light receiving lenses, the plurality of light detectors, and the plurality of reading members are used.