Title:
SCANNING DEVICE AND LASER RADAR
Document Type and Number:
WIPO Patent Application WO/2020/147625
Kind Code:
A1
Abstract:
A scanning device and a laser radar. The scanning device comprises at least two galvanometers (110) sequentially arranged along an optical path, each galvanometer (100) being provided with a moving part (111), the moving part (111) having a reflecting surface (111r) suitable for reflection of light rays, and the galvanometer (110) changing the propagation direction of the light rays reflected by the reflecting surface (111r) by means of the swinging of the moving part (111); and at least one elastic connecting member (120) having two ends (121) respectively connected to the moving parts (111) of the two adjacent galvanometers (110). According to the scanning device, on the premise that the machining and assembling precision requirements are not increased or even reduced, the swinging of the moving parts (111) of the at least two galvanometers (110) is fused into the same resonant mode according to a certain phase, so that the cost is reduced and the performance is improved.
Inventors:
GAO YONGFENG (CN)
XIANG SHAOQING (CN)
XIANG SHAOQING (CN)
Application Number:
PCT/CN2020/070853
Publication Date:
July 23, 2020
Filing Date:
January 08, 2020
Export Citation:
Assignee:
HESAI PHOTONICS TECH CO LTD (CN)
International Classes:
G01S7/481
Foreign References:
| CN109765541A | 2019-05-17 | |||
| CN107272190A | 2017-10-20 | |||
| CN105043550A | 2015-11-11 | |||
| CN102175326A | 2011-09-07 | |||
| US20050045727A1 | 2005-03-03 | |||
| JP2005128147A | 2005-05-19 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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