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:
Jan. 22, 2019
Filed:
Aug. 28, 2017
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Marcel R. Bohmer, Eindhoven, NL;
Kentaro Shimizu, San Jose, CA (US);
Jacobus Johannes Franciscus Gerardus Heuts, Eindhoven, NL;
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); H01L 33/60 (2010.01); H01L 33/56 (2010.01); H01L 33/44 (2010.01);
U.S. Cl.
CPC ...
H01L 33/60 (2013.01); H01L 33/44 (2013.01); H01L 33/50 (2013.01); H01L 33/501 (2013.01); H01L 33/502 (2013.01); H01L 33/504 (2013.01); H01L 33/56 (2013.01); H01L 2933/0091 (2013.01);
Abstract
Systems for LED illumination products. Solutions to the problems attendant to delivering a white-appearing LED product without diminishing efficiency of white light generation are presented. Devices are designed and manufactured that include a specially-formulated off-state white-appearing layer to the LED apparatus. The composition of the specially-formulated off-state white-appearing layer is tuned for high-efficiency during the on-state.