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:
Aug. 02, 2011
Filed:
Jan. 30, 2009
David W. Knoble, Tupelo, MS (US);
Khosrow Jamasbi, Belden, MS (US);
David W. Knoble, Tupelo, MS (US);
Khosrow Jamasbi, Belden, MS (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A LED luminaire comprises a heat sink disposed above an LED array and in thermal communication with the LED array, the LED array having at least one red LED and a plurality of cool white LEDs, the at least one red LED providing a warmer correlated color temperature for an output light and the plurality of white LEDs providing a higher efficacy, a diffuser positioned to enclose the LED array between the heat sink and the diffuser, the diffuser color mixing the at least one red LED and the plurality of cool white LEDs rendering a red light from the at least one red LED indiscernible from a cool white light of the plurality of white LEDs, a reflector positioned adjacent the heat sink.