Title:
OPTICAL BEAM SCANNING DEVICE AND DISTANCE MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/139645
Kind Code:
A1
Abstract:
An optical beam scanning device (1) comprises a plurality of light sources (11, 21), a plurality of beam shapers (13, 23), a scanning mirror (40), and a scanning region correcting optical member (45). The plurality of light sources emit a plurality of optical beams (12, 22). Each of the plurality of beam shapers includes a first lens (14, 24) and a second lens (15, 25). A distance (D1) between the first lens (14) and the second lens (15) in the beam shaper (13) for shaping the optical beam (12) is different from a distance (D2) between the first lens (24) and the second lens (25) in the beam shaper (23) for shaping the optical beam (22).
Inventors:
OMAKI MASAYUKI (JP)
HONDA NATSUKI (JP)
NAKAHARA SHOTA (JP)
HONDA NATSUKI (JP)
NAKAHARA SHOTA (JP)
Application Number:
PCT/JP2022/001602
Publication Date:
July 27, 2023
Filing Date:
January 18, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G02B26/10; G01S7/481; G02B27/09; H01S5/02253
Domestic Patent References:
| WO2018147454A1 | 2018-08-16 | |||
| WO2016056545A1 | 2016-04-14 |
Foreign References:
| JP2019160624A | 2019-09-19 | |||
| JPH02294888A | 1990-12-05 | |||
| US20110128524A1 | 2011-06-02 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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