Laser radar and method for performing detection by using the same
AssigneeHesai Technology Co., Ltd.
InventorsJintao YANG, Shaoqing XIANG
Life of this patent
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Abstract
The present invention relates to a lidar, including: a laser emitter, configured to emit a laser beam; an emitting lens, disposed downstream of an optical path of the laser emitter, configured to emit a detection light beam after shaping the laser beam, and the emitting lens including an diaphragm region; a receiving lens, configured to receive a reflected light beam of the detection light beam after being reflected outside the lidar; and a compensation lens, disposed in a diaphragm region of the emitting lens, configured to receive at least a part of the laser beam and/or the detection light beam and redirect the received part of the laser beam and/or the detection light beam toward the receiving lens.
Claims12
A lidar, comprising:
- a laser emitter, configured to emit a laser beam;
- an emitting lens, disposed downstream of an optical path of the laser emitter, configured to provide a detection light beam after shaping the laser beam, and the emitting lens comprising a diaphragm region;
- a receiving lens, configured to receive a reflected light beam of the detection light beam after being reflected outside the lidar;
- and
- a compensation lens, disposed in the diaphragm region of the emitting lens, and configured to receive at least a part of the laser beam and/or the detection light beam and redirect the received part of the laser beam and/or the detection light beam toward the receiving lens.
A method for performing detection by using a lidar that comprises a laser emitter, an emitting lens, a receiving lens, and a compensation lens, the method comprising:
- emitting, by the laser emitter, a laser beam;
- shaping, by the emitting lens, the laser beam and emitting a detection light beam, wherein the emitting lens is disposed downstream of an optical path of the laser emitter and comprises a diaphragm region;
- receiving, by the receiving lens, a reflected light beam of the detection light beam after being reflected by an object external to the lidar;
- and
- receiving, by the compensation lens, at least a part of the laser beam and/or the detection light beam, and redirecting the received part of the laser beam and/or the detection light beam towards the receiving lens, wherein the compensation lens is disposed in the diaphragm region of the emitting lens.
Dependencies are inferred from the claim text.