Title:
THREE-DIMENSIONAL RANGING MODULE AND THREE-DIMENSIONAL RANGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/008159
Kind Code:
A1
Abstract:
A three-dimensional ranging module (1) comprises: a light source (10) for emitting laser light; a lens module (20) that includes a lens (21) for condensing light obtained when the emitted laser light has been reflected by a subject, an imaging element (23) for receiving the light condensed by the lens (21), and a lens barrel (22) that encloses the space between the lens (21) and the imaging element (23) and supports the lens (21); and a lens cover (30) that is located between the lens module (20) and the subject, and is transparent to the wavelength of the laser light. In a cross-sectional view in which the lens barrel (22) is sectioned by a plane that includes an optical axis (A1) of the lens (21), a first surface (221), of the lens barrel, (22) facing the subject includes a first inclined section that becomes further distanced from the lens cover (30) as the distance of the inclined section from the optical axis (A1) increases.
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Inventors:
NAKANO SHINGO
ASANO TAKUYA
HAYASHI SHIGEO
ASANO TAKUYA
HAYASHI SHIGEO
Application Number:
PCT/JP2022/027242
Publication Date:
February 02, 2023
Filing Date:
July 11, 2022
Export Citation:
Assignee:
NUVOTON TECH CORPORATION JAPAN (JP)
International Classes:
G01S7/481; G01S17/894
Foreign References:
| JP2013130422A | 2013-07-04 | |||
| JP2012256040A | 2012-12-27 | |||
| JP2018158125A | 2018-10-11 | |||
| CN208723309U | 2019-04-09 | |||
| CN109031252A | 2018-12-18 | |||
| CN206161862U | 2017-05-10 | |||
| JP2019191173A | 2019-10-31 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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