Title:
SCANNING DEVICE, LASER RADAR, AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2023/225963
Kind Code:
A1
Abstract:
A scanning device (40), a laser radar, and a terminal, applicable to the fields of detection, intelligent surveying and mapping, intelligent driving and the like. The scanning device (40) comprises a scanner body, a polarizer layer and a waveplate layer. The scanner body is provided with at least one reflecting surface; the polarizer layer is attached to the reflecting surface of the scanner body; the waveplate layer is attached to the polarizer layer. By providing the waveplate layer and the polarizer layer on the reflecting surface, an optical signal emitted by a scanner is blocked by the polarizer layer when being reflected back to the scanning device (40) by an optical element. The solution reduces generation of ghost images, weakens the strength of interference signals, and improves the recognition precision of a detection device.
Inventors:
QIU SUNJIE (CN)
AN KAI (CN)
GUO JIAXING (CN)
HAN WEI (CN)
ZHANG HAOLIANG (CN)
AN KAI (CN)
GUO JIAXING (CN)
HAN WEI (CN)
ZHANG HAOLIANG (CN)
Application Number:
PCT/CN2022/095360
Publication Date:
November 30, 2023
Filing Date:
May 26, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S7/481
Foreign References:
| CN107203037A | 2017-09-26 | |||
| CN111399232A | 2020-07-10 | |||
| CN110161699A | 2019-08-23 | |||
| CN209728302U | 2019-12-03 | |||
| CN113219665A | 2021-08-06 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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