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:
May. 28, 2024

Filed:

Oct. 22, 2020
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Chihiro Moriguchi, Kariya, JP;

Shunpei Suzuki, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2006.01); G01S 7/481 (2006.01); G01S 7/499 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4814 (2013.01); G01S 7/4815 (2013.01); G01S 7/499 (2013.01); G01S 7/4817 (2013.01);
Abstract

A light irradiation apparatus includes an optical window, a light source and an irradiation unit. The optical window is formed of a light-transmissive material. The light source is configured to emit irradiation light with linear polarization. The irradiation unit is configured to irradiate the irradiation light emitted from the light source toward a preset irradiation range through the optical window. Moreover, the optical window has a shape such that the reflectivity of the irradiation light within a specified range is lower than or equal to a preset upper limit; the specified range is provided within the irradiation range.


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