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:
Jul. 03, 2018

Filed:

Dec. 20, 2017
Applicant:

Nichia Corporation, Anan-shi, Tokushima, JP;

Inventor:

Takeshi Morikawa, Tokushima, JP;

Assignee:

NICHIA CORPORATION, Anan-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01); H01L 33/50 (2010.01); H01L 25/075 (2006.01); G02F 1/1335 (2006.01); H01L 33/48 (2010.01); F21V 8/00 (2006.01); C09K 11/08 (2006.01); H01L 33/56 (2010.01); H05B 33/04 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H01L 33/504 (2013.01); C09K 11/0883 (2013.01); G02B 6/0068 (2013.01); G02F 1/133603 (2013.01); H01L 25/0753 (2013.01); H01L 33/486 (2013.01); H01L 33/508 (2013.01); H01L 33/56 (2013.01); F21Y 2115/10 (2016.08); H01L 33/505 (2013.01); H01L 33/507 (2013.01); H05B 33/04 (2013.01);
Abstract

A light emitting device includes a first light emitting element configured to emit red light, a second light emitting element configured to emit green light, a third light emitting element configured to emit blue light, and a translucent member covering the first, second and third light emitting elements. The translucent member includes a wavelength conversion substance configured to absorb the blue light of the third light emitting element and to emit light. The first light emitting element, the second light emitting element, and the third light emitting element are connected in series. At the same forward current value, a radiant flux of the third light emitting element is greater than a radiant flux of the first light emitting element and a radiant flux of the second light emitting element. The wavelength conversion substance includes a phosphor material configured to emit light having a color between green and red.


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Morikawa, Takeshi. (2018). Light emitting device (U.S. Patent No. 10014449). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10014449

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