Title:
LIGHT REFLECTION ASSEMBLY, OPTICAL SWITCH, AND PHOTOGRAPHY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/089513
Kind Code:
A1
Abstract:
A light reflection assembly, comprising a reflecting element (10), a substrate (20), a first cantilever beam (401), a second cantilever beam (402), a magnetic structure (30), and a support structure (50). The substrate (20) is located on the magnetic structure (30), and the reflecting element (10) is located in a hollowed-out region in the middle of the substrate (20). Two ends of the reflecting element (10) are respectively connected to the substrate (20) by means of the first cantilever beam (401) and the second cantilever beam (402), and the first cantilever beam (401) and the second cantilever beam (402) are located on different sides of the reflecting element (10) and arranged in a first axial direction. The front face of the reflecting element (10) is used to reflect incident light. The magnetic structure (30) is used to drive the reflecting element (10) to rotate. The support structure (50) is fixed on the magnetic structure (30), the end of the support structure (50) that is away from the magnetic structure (30) contacts the back surface of the reflecting element (10), and the support structure (50) does not move with the rotation of the reflecting element (10). The structure of the light reflection assembly solves the problem of a cantilever beam (40) being easily damaged, and can be applied to the fields of photography, optical switching, and laser radar. Further disclosed are an optical switch and a photography device.
Inventors:
LIAO WENZHE (CN)
LI MING (CN)
FENG JUN (CN)
LI MING (CN)
FENG JUN (CN)
Application Number:
PCT/CN2021/126942
Publication Date:
May 05, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B26/08; B81B3/00; G02B7/182
Foreign References:
| US20050122604A1 | 2005-06-09 | |||
| US20190369386A1 | 2019-12-05 | |||
| US6504643B1 | 2003-01-07 | |||
| CN106550181A | 2017-03-29 | |||
| US20180081167A1 | 2018-03-22 | |||
| US20200049976A1 | 2020-02-13 | |||
| CN202011196921A | 2020-10-31 |
Other References:
See also references of EP 4224237A4
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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