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. 13, 2020

Filed:

May. 10, 2019
Applicant:

Nichia Corporation, Anan-shi, JP;

Inventors:

Naohide Miyasaka, Suwa-gun, JP;

Naoki Nakamura, Suwa-gun, JP;

Minoru Kitahara, Suwa-gun, JP;

Assignee:

NICHIA CORPORATION, Anan-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/10 (2020.01); H05B 45/22 (2020.01); H05B 45/40 (2020.01); H05B 45/20 (2020.01); H05B 33/02 (2006.01);
U.S. Cl.
CPC ...
H05B 45/10 (2020.01); H05B 45/22 (2020.01); H05B 45/40 (2020.01);
Abstract

A light-emitting module includes a light emitter including a first semiconductor light-emitting element, a second semiconductor light-emitting element, and a third semiconductor light-emitting element. A first current regulator is to supply the first current to the first semiconductor light-emitting element. The second current regulator is to supply the second current to the second semiconductor light-emitting element. The third current regulator is to supply the third current to the third semiconductor light-emitting element. A control circuit is configured to control at least one of the first current regulator to control the first current, the second current regulator to control the second current, or control the third current regulator to control the third current according to at least one of fluctuation of the first voltage drop, fluctuation of the second voltage drop, or fluctuation of the third voltage drop.


Find Patent Forward Citations

Loading…