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:
Jun. 03, 2025

Filed:

Sep. 01, 2022
Applicant:

Kyocera Corporation, Kyoto, JP;

Inventor:

Noritaka Niino, Soraku-gun, JP;

Assignee:

KYOCERA CORPORATION, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/32 (2018.01); F21V 8/00 (2006.01); F21Y 113/13 (2016.01); F21Y 115/30 (2016.01);
U.S. Cl.
CPC ...
F21V 9/32 (2018.02); G02B 6/0006 (2013.01); G02B 6/001 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/30 (2016.08);
Abstract

A light-emitting member includes an optical fiber that receives first excitation light and first mixed light. The optical fiber includes a first wavelength converter that emits first fluorescence in response to the first excitation light, and emits second mixed light being a mixture of the first mixed light and the first fluorescence through a side surface. The light-emitting member includes a light-emitting portion that emits the second mixed light outside the light-emitting member. A plurality of component light beams of the first mixed light includes first component light with a first peak wavelength and second component light with a second peak wavelength longer than the first peak wavelength. An absolute value of a difference between a first fluorescence peak wavelength of the first fluorescence and the first peak wavelength is less than an absolute value of a difference between the first fluorescence peak wavelength and the second peak wavelength.


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