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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.

Patent No.:

US 10965097 B1

PDFFull Text
Date of Patent:
Mar. 30, 2021

Filed:

Feb. 19, 2020

Light emitting device

Applicant:

Nichia Corporation, Anan, JP;

Inventors:

Takuya Hashimoto, Tokushima, JP;

Eiichiro Okahisa, Tokushima, JP;

Assignee:

NICHIA CORPORATION, Anan, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

David C Spalla

Int. Cl.
CPC ...
H01L 23/00 (2006.01); H01S 5/022 (2006.01); H01S 5/024 (2006.01); H01L 23/02 (2006.01); H01S 5/0222 (2021.01); H01S 5/00 (2006.01); H01S 5/02216 (2021.01); H01L 33/58 (2010.01); H01L 27/146 (2006.01); H01L 33/48 (2010.01);
U.S. Cl.
CPC ...
H01S 5/02276 (2013.01); H01L 24/49 (2013.01); H01S 5/024 (2013.01); H01S 5/0222 (2013.01); H01S 5/02288 (2013.01); H01S 5/02296 (2013.01); H01L 24/45 (2013.01); H01L 24/48 (2013.01); H01L 27/14625 (2013.01); H01L 33/486 (2013.01); H01L 33/58 (2013.01); H01L 2224/451 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48137 (2013.01); H01L 2224/49109 (2013.01); H01L 2924/1033 (2013.01); H01L 2924/10344 (2013.01); H01L 2924/10346 (2013.01); H01S 5/0071 (2013.01); H01S 5/0228 (2013.01); H01S 5/02216 (2013.01);
Abstract

A light emitting device includes: a base including: a main body, and a frame disposed on an upper surface of the main body; one or more laser elements disposed on the upper surface of the main body and positioned inward of the frame; a cover including: a support member that is fixed on an upper surface of the frame and has an opening inside the frame, and a light transmissive portion disposed so as to close the opening; and a lens body disposed on the support member and above the light transmissive portion. A difference between a thermal expansion coefficient of the light transmissive portion and a thermal expansion coefficient of the lens body is smaller than a difference between a thermal expansion coefficient of the light transmissive portion and a thermal expansion coefficient of the main body.

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