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:
Feb. 09, 2016
Filed:
Apr. 06, 2012
Kurt S. Wilcox, Libertyville, IL (US);
Bernd Keller, Santa Barbara, CA (US);
Ted Lowes, Lompoc, CA (US);
Peter S. Andrews, Durham, NC (US);
Christopher Strom, Racine, WI (US);
Kurt S. Wilcox, Libertyville, IL (US);
Bernd Keller, Santa Barbara, CA (US);
Ted Lowes, Lompoc, CA (US);
Peter S. Andrews, Durham, NC (US);
Christopher Strom, Racine, WI (US);
Cree, Inc., Durham, NC (US);
Abstract
Lighting apparatus having a first lens over the LED emitter and a second lens over the first lens, and including: a first optical surface which is a first-lens outer surface configured to refract light from the emitter; a second optical surface which is a second-lens inner surface spaced from the first optical surface; and a third optical surface which is a second-lens outer surface configured to refract light from the second optical surface toward a preferential side. One embodiment includes asymmetric primary and secondary lenses.