Title:
LINE BEAM SCANNING OPTICAL SYSTEM, AND LASER RADAR
Document Type and Number:
WIPO Patent Application WO/2021/192601
Kind Code:
A1
Abstract:
This laser radar is provided with a line beam scanning optical system (10), and a light receiving optical system. The line beam scanning optical system (10) is provided with: a plurality of laser light sources (11a) arranged side-by-side in a direction corresponding to the long side of a line beam (B10); an optical deflector (14) including a mirror (14a) which deflects the line beam (B10) in the short-side direction; a lens portion (40) which collimates laser beams emitted from each of the plurality of laser light sources (11a), and condenses each collimated laser beam onto the mirror (14a); and a diffusing optical element (15) which causes each of the plurality of laser beams reflected by the mirror (14a) to diffuse in the long-side direction. Each of the plurality of laser beams is incident on the diffusing optical element (15) while remaining in the state of having been collimated by the lens portion (40).
Inventors:
MURAKAMI KIMIHIRO
Application Number:
PCT/JP2021/003109
Publication Date:
September 30, 2021
Filing Date:
January 28, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01S7/481; G02B26/10
Domestic Patent References:
| WO2019171726A1 | 2019-09-12 | |||
| WO2018146889A1 | 2018-08-16 |
Foreign References:
| JP2010091378A | 2010-04-22 | |||
| JP2009037172A | 2009-02-19 | |||
| JP2016180624A | 2016-10-13 | |||
| US20190293948A1 | 2019-09-26 |
Attorney, Agent or Firm:
SHIBANO, Masanori et al. (JP)
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