Title:
LIGHT DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/097467
Kind Code:
A1
Abstract:
A lidar device (100) is a light detecting device provided with a light-emitting unit (20), a scanning unit (30), a light-receiving unit (40), and an optical unit (60). In the light-emitting unit (20), a plurality of laser oscillation elements (22) for emitting beams (SB) are arranged in a light source arrangement direction (ADs) with an interval therebetween. The scanning unit (30) scans beams (SB) emitted from the light-emitting unit (20) and projects light to a measurement region. The light-receiving unit (40) receives reflection beams (RB) from the measurement region. The optical unit (60) is located on an optical path of beams traveling from the light-emitting unit (20) to the scanning unit (30). The optical unit (60) includes: a collimator lens (61) having positive power in a transmission direction of the beams (SB); and a beam forming lens (66) that is located at a rear stage of the collimator lens (61) and that has positive power in the transmission direction on a sub-scanning surface (SS).
Inventors:
ONDA KAZUHISA (JP)
MIKI SAKITO (JP)
KIYONO MITSUHIRO (JP)
MIKI SAKITO (JP)
KIYONO MITSUHIRO (JP)
Application Number:
PCT/JP2021/038589
Publication Date:
May 12, 2022
Filing Date:
October 19, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01S7/481; G02B26/08; G02B26/10
Domestic Patent References:
| WO2019171726A1 | 2019-09-12 | |||
| WO2020116078A1 | 2020-06-11 | |||
| WO2017010176A1 | 2017-01-19 |
Foreign References:
| JP2017090144A | 2017-05-25 | |||
| US20070071056A1 | 2007-03-29 |
Attorney, Agent or Firm:
YAHAGI Kazuyuki et al. (JP)
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