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Title:
SCANNING MODULE OF LASER RADAR, AND LASER RADAR
Document Type and Number:
WIPO Patent Application WO/2024/082877
Kind Code:
A1
Abstract:
A scanning module of a laser radar, and a laser radar. The scanning module comprises: a first dispersion unit which receives multi-wavelength first light rays to form second light trays, wherein the propagation directions of the second light rays are related to wavelengths, and the second light rays having different wavelengths are all located in a first plane; and a first light beam rotating unit which refracts the second light rays to form third light rays, wherein the third light rays having different wavelengths are all located in a second plane, and the second plane and the first plane form a preset angle. By providing the first light beam rotating unit, the second light rays having different wavelengths and the third light rays having different wavelengths can be respectively located in two planes which form a preset angle, thereby avoiding the limitation of the arrangement of optical elements of the scanning module on the scanning direction, effectively reducing the size of the scanning module in the second plane, and effectively reducing the installation difficulty.

Inventors:
ZHOU QUAN (CN)
PAN ZHENGQING (CN)
LIANG CHANGPEI (CN)
GAO MING (CN)
XIANG SHAOQING (CN)
Application Number:
PCT/CN2023/118522
Publication Date:
April 25, 2024
Filing Date:
September 13, 2023
Export Citation:
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Assignee:
HESAI TECHNOLOGY CO LTD (CN)
International Classes:
G01S7/481
Domestic Patent References:
WO2023044538A12023-03-30
Foreign References:
CN110168430A2019-08-23
CN207318710U2018-05-04
US20200348418A12020-11-05
CN115144840A2022-10-04
US20220283271A12022-09-08
CN110226103A2019-09-10
CN112437896A2021-03-02
CN112368627A2021-02-12
US20190317199A12019-10-17
CN110658509A2020-01-07
CN114077048A2022-02-22
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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