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:
Nov. 26, 2024

Filed:

Jul. 29, 2022
Applicants:

Denso Corporation, Kariya, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Mirise Technologies Corporation, Nisshin, JP;

Inventors:

Hiroshi Ando, Nisshin, JP;

Kazuyuki Ishihara, Nisshin, JP;

Masatoshi Tsuji, Nisshin, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 17/00 (2006.01); G02B 23/08 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0036 (2013.01); G02B 6/0016 (2013.01); G02B 6/002 (2013.01); G02B 17/008 (2013.01); G02B 23/08 (2013.01);
Abstract

An optical member includes a light guide body. The light guide body has an incident surface on which an outside light is incident, a first surface having flat portions and prism portions, an incident light incident on the incident surface reaching the first surface for the first time, and a second surface arranged opposite to the flat portions. The flat portions totally reflect the incident light toward the second surface. The second surface totally reflects a reflected light reflected by the flat portion toward the first surface. The prism portion has an ejection surface to emit the incident light to outside.


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