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. 22, 2024

Filed:

Jun. 27, 2022
Applicant:

Korrus, Inc., Los Angeles, CA (US);

Inventors:

Raghuram L. V. Petluri, Los Angeles, CA (US);

Paul Kenneth Pickard, Los Angeles, CA (US);

Assignee:

KORRUS, INC., Los Angeles, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21K 9/00 (2016.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01); H01L 25/075 (2006.01); H01L 27/15 (2006.01); H01L 33/50 (2010.01); H05B 45/20 (2020.01);
U.S. Cl.
CPC ...
F21K 9/00 (2013.01); H01L 25/0753 (2013.01); H01L 27/153 (2013.01); H01L 33/50 (2013.01); H05B 45/20 (2020.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08); H01L 33/502 (2013.01);
Abstract

The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within red, blue, green, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Methods of generating white light by combining light generated by red, blue, green, and cyan color channels. Methods of generating white light points at substantially the same 1931 CIE chromaticity diagram color coordinates having different EML.


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