Laser radar

The utility model provides a laser radar, and relates to the technical field of radars. The laser radar comprises an extinction cylinder body and a diaphragm, the extinction cylinder is used for being arranged in a return light path of the laser radar, the extinction cylinder body is provided with a through light through hole, the diaphragm is arranged in the light through hole, and an extinction groove is annularly formed in the side wall of the light through hole. The stray light in a receiving light system in the laser radar can be better eliminated. 本申请提供一种激光雷达，涉及雷达技术领域。激光雷达包括消光筒本体和光阑，消光筒用于设置在激光雷达的回返光路中，消光筒本体设置有贯穿的通光孔，光阑设置于通光孔内，且通光孔的侧壁环设有消光槽。其能够更好地实现激光雷达中接收光系统中杂散光的消除。