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:
Oct. 19, 2021

Filed:

Mar. 23, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Nobuaki Nagao, Gifu, JP;

Mitsuru Nitta, Kyoto, JP;

Yasuhisa Inada, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); F21V 9/30 (2018.01); A61B 1/06 (2006.01); A61B 1/07 (2006.01); H01S 5/02251 (2021.01); H01S 5/02253 (2021.01); C09K 11/08 (2006.01); C09K 11/62 (2006.01); F21V 8/00 (2006.01); H01S 3/00 (2006.01); H01S 3/16 (2006.01); H01S 3/23 (2006.01); H01S 5/30 (2006.01); H04N 5/225 (2006.01); H04N 9/04 (2006.01); F21W 131/105 (2006.01); H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); A61B 1/0653 (2013.01); A61B 1/0684 (2013.01); A61B 1/07 (2013.01); C09K 11/0883 (2013.01); C09K 11/62 (2013.01); F21V 9/30 (2018.02); G02B 6/0006 (2013.01); G02B 6/0008 (2013.01); H01S 3/005 (2013.01); H01S 3/1611 (2013.01); H01S 3/1643 (2013.01); H01S 3/23 (2013.01); H01S 5/02251 (2021.01); H01S 5/02253 (2021.01); H01S 5/3013 (2013.01); H04N 5/2256 (2013.01); H04N 9/045 (2013.01); F21W 2131/105 (2013.01); H01S 5/0087 (2021.01); H04N 2005/2255 (2013.01);
Abstract

A fiber light source includes a solid-state light source, a wavelength convertor, and an optical fiber. The solid-state light source is configured to emit first light, the first light including blue light with a peak wavelength in a range of 430 to 470 nm, inclusive, and green light with a peak wavelength in a range of 480 to 550 nm, inclusive. The wavelength convertor is disposed on the light output side or the light incident side of the optical fiber and contains a red phosphor. The red phosphor includes Ce as a luminescent center, and is excited by at least part of the green light to emit second light. The second light has a spectrum with a peak wavelength in a range of 600 to 700 nm, inclusive. The red phosphor contains a nitride or an oxynitride as a host material.


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