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:
Dec. 19, 2023

Filed:

Oct. 06, 2022
Applicant:

Nichia Corporation, Anan, JP;

Inventor:

Kazuma Kozuru, Tokushima, JP;

Assignee:

NICHIA CORPORATION, Anan, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/02253 (2021.01); H01S 5/02255 (2021.01); H01S 5/02257 (2021.01); G03B 21/20 (2006.01); G03B 21/00 (2006.01); H01S 5/40 (2006.01);
U.S. Cl.
CPC ...
H01S 5/02253 (2021.01); H01S 5/02255 (2021.01); H01S 5/02257 (2021.01); G03B 21/006 (2013.01); G03B 21/2033 (2013.01); G03B 21/2073 (2013.01); H01S 5/4031 (2013.01);
Abstract

A light emitting device includes: at least one semiconductor laser element; a base member on which the at least one semiconductor laser element is disposed; a light-transmissive member including: an upper surface, a lower surface, and a light-transmissive region through which laser light emitted from the at least one semiconductor laser element is transmitted from the lower surface to the upper surface; and a lens member through which the laser light emitted from the at least one semiconductor laser element, the lens member being fixed to the base member or the light-transmissive member. At least the light-transmissive region is made of sapphire. The light-transmissive member includes an incident surface on which the laser light is incident, the incident surface being an a-plane of the sapphire.


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