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.:
Date of Patent:
Dec. 14, 2021
Filed:
May. 28, 2020
Applicant:
Ecosense Lighting Inc., Los Angeles, CA (US);
Inventors:
Raghuram L. V. Petluri, Los Angeles, CA (US);
Paul Kenneth Pickard, Los Angeles, CA (US);
Assignee:
Ecosense Lighting Inc., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/20 (2020.01); C09K 11/08 (2006.01); F21V 5/04 (2006.01); H05B 45/22 (2020.01); H05B 45/24 (2020.01); H05B 47/105 (2020.01); C09K 11/77 (2006.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
C09K 11/0883 (2013.01); C09K 11/7734 (2013.01); C09K 11/7774 (2013.01); F21V 5/04 (2013.01); H01L 33/502 (2013.01); H05B 45/20 (2020.01); H05B 45/22 (2020.01); H05B 45/24 (2020.01); H05B 47/105 (2020.01); H01L 33/505 (2013.01); H01L 33/507 (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 blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.