INSERTED MICROLENS ARRAY IN LASER RADAR

摘要

A laser radar including a micro-lens array is provided to enhance optical efficiency by making an optical detector increase the intensity of an optical signal received after being reflected on an object. A light source unit(210) generates an optical signal of a predetermined band. A light-transmitting optical lens(220) is formed on an optical path in order to emit an optical signal of the light source unit to a target(230). A light-receiving optical lens(240) is formed to collect the optical signal reflected on the target. An optical band pass filter(250) removes a wavelength except for a wavelength band included in the optical signal outputted from the light-receiving optical lens. A micro-lens array(260) collects the optical signal outputted from the optical band pass filter. An optical detector(270) detects the collected optical signal of the micro-lens array.