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:
Sep. 13, 2011
Filed:
Nov. 04, 2008
Der Jeou Chou, Mesa, AZ (US);
Der Jeou Chou, Mesa, AZ (US);
Enertron, Inc., Tempe, AZ (US);
Abstract
A light emitting diode (LED) light engine includes a substrate for supporting the LED light engine. Conductive traces are formed over the substrate using a thick film screen printing, physical vapor deposition, chemical vapor deposition, electrolytic plating, printed circuit board fabricating, or electroless plating process. The conductive traces include mounting pads. LEDs are mounted to each of the mounting pads for electrical interconnection. The LEDs include red LEDs, green LEDs and blue LEDs. Each of the blue LEDs is at least partially covered with a yellow phosphor coating compound. The concentration of the yellow phosphor coating compound is controlled to allow the emission of blue and yellow spectrum light energy from each blue LED. Emissions of light energy from the red LEDs, green LEDs and blue LEDs are combined to achieve a target correlated color temperature and a target color rendering index for the LED light engine.