The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 30, 2026

Filed:

Mar. 06, 2023
Applicant:

Denso Corporation, Kariya-city, JP;

Inventors:

Hiroshi Asami, Kariya-city, JP;

Kazuhisa Onda, Kariya-city, JP;

Mitsuhiro Kiyono, Kariya-city, JP;

Assignee:

DENSO CORPORATION, Kariya-city, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/481 (2006.01); G01S 17/931 (2020.01);
U.S. Cl.
CPC ...
G01S 7/4817 (2013.01); G01S 7/4811 (2013.01); G01S 7/4813 (2013.01); G01S 17/931 (2020.01);
Abstract

A laser radar device includes: a light source; a mirror rotatable about a rotation shaft to reflect laser light emitted by the light source; a window; and a detector to detect laser light. The mirror has a low reflection area having a lower reflectance than the other region of the mirror, in a state where a mirror surface faces toward the light source, at position adjacent to the light source than the detector in an axial direction of the rotation shaft and adjacent to the window than a region where the laser light emitted by the light source hits for a first time in a radial direction of the rotation shaft. The window has an inclined posture in which a distance from the rotation shaft is shorter at position adjacent to the detector than at position adjacent to the light source.


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