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:
Jan. 09, 2024

Filed:

Mar. 31, 2022
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Shinichi Komura, Tokyo, JP;

Koichi Okuda, Tokyo, JP;

Ken Onoda, Tokyo, JP;

Hiroaki Kijima, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01); F21V 8/00 (2006.01); H01S 5/40 (2006.01);
U.S. Cl.
CPC ...
H01S 5/0071 (2013.01); G02B 6/002 (2013.01); G02B 6/0031 (2013.01); G02B 6/0068 (2013.01); H01S 5/4093 (2013.01);
Abstract

According to one embodiment, an illumination device includes a light guide having a first plane, a second plane, a side plane, a first tilted plane, and a second tilted plane, an angle formed between the side plane and the first tilted plane and an angle formed between the side plane and the second tilted plane being acute angles, a first semiconductor laser element including a first light emitting part, and a second semiconductor laser element including a second light emitting part. The first light emitting part is opposed to a first intersection part of the side plane and the first tilted plane, and the second light emitting part is opposed to a second intersection part of the side plane and the second tilted plane.


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