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Patent Searching and Data


Title:
OPTICAL PATH STRUCTURE AND LASER LIGHT PROJECTOR USING OPTICAL PATH STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2020/211638
Kind Code:
A1
Abstract:
Provided are an optical path structure and laser light projector using the optical path structure, the optical path structure includes a laser emitter (1) that emits laser light, and an aspherical mirror (2), a first beam splitter (31) and a second beam splitter (32), a wedge mirror (4), and a cylindrical mirror (5) that are sequentially disposed along an optical path of the laser light. The advantages are: 1) the angle of an incident surface (41) of the wedge mirror (4) is reasonably set, so that the light reflected from the incident surface (41) of the wedge mirror (4) is not incident on the beam splitters (31, 32), or even if the light is incident on the beam splitters (31, 32), the light reflected by the beam splitters (31, 32) is not interfered, and multipoint phenomenon is avoided; 2) the structure of the wedge mirror (4) is reasonably set, so that the breakpoint in the projected laser light is eliminated.

Inventors:
ZHANG OU (CN)
FEI KAI (CN)
Application Number:
PCT/CN2020/082376
Publication Date:
October 22, 2020
Filing Date:
March 31, 2020
Export Citation:
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Assignee:
CHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR CO LTD (CN)
International Classes:
G01C15/00; G02B27/00
Foreign References:
CN109974677A2019-07-05
CN210051332U2020-02-11
CN105005146A2015-10-28
CN203178508U2013-09-04
CN207336959U2018-05-08
CN208621048U2019-03-19
EP1067363A22001-01-10
US20020144415A12002-10-10
Other References:
See also references of EP 3957950A4
Attorney, Agent or Firm:
BEIJING DACHENG LAW OFFICES, LLP (CN)
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