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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 11239218 B1

PDFFull Text
Date of Patent:
Feb. 01, 2022

Filed:

Sep. 25, 2019

Light emitting module having a red light source, a green light source and a blue light source

Applicant:

Nichia Corporation, Anan, JP;

Inventor:

Takaaki Tada, Tokushima, JP;

Assignee:

NICHIA CORPORATION, Anan, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Phuc T Dang

Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 25/13 (2006.01); F21V 3/04 (2018.01); H01L 33/50 (2010.01); F21Y 115/10 (2016.01); F21Y 113/13 (2016.01); F21V 7/28 (2018.01); H01L 33/32 (2010.01); H01L 33/38 (2010.01); H01L 33/40 (2010.01); H01L 33/60 (2010.01); F21Y 103/10 (2016.01);
U.S. Cl.
CPC ...
H01L 25/13 (2013.01); F21V 3/049 (2013.01); H01L 33/505 (2013.01); F21V 7/28 (2018.02); F21Y 2103/10 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08); H01L 33/32 (2013.01); H01L 33/38 (2013.01); H01L 33/40 (2013.01); H01L 33/502 (2013.01); H01L 33/60 (2013.01);
Abstract

A light emitting module includes red, green and blue light sources, and a light diffusing member is arranged above the light sources. The red light source includes a first light emitting element configured to emit light in a range from ultraviolet to blue, a first phosphor layer containing a first phosphor configured to emit red light, and a first film configured to transmit red light and block light in the range from ultraviolet to blue. The green light source includes a second light emitting element configured to emit light in the range from ultraviolet to blue, a second phosphor layer containing a second phosphor configured to emit green light, and a second film configured to transmit green light and block light in the range from ultraviolet to blue. The blue light source includes a third light emitting element configured to emit light in the range from ultraviolet to blue.

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