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. 15, 2015
Filed:
Oct. 22, 2012
Cree, Inc., Durham, NC (US);
Elizabeth Rodgers, Raleigh, NC (US);
Paul Kenneth Pickard, Morrisville, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
A beam shaping lens and an LED lighting system are disclosed. The lens according to example embodiments can concentrate or spread light, depending on the specific embodiment used. The lens according to example embodiments of the invention includes repeated concentric rings of refractive features, with either a constant or gradient feature angle. These features may include substantially triangular concentric rings. These features are located on the interior face of the lens, facing the LED source. In some embodiments, the exterior or exit surface of the lens includes texturing. A lens according to example embodiments of the invention can be used with various fixtures. Light enters the lens through the entry surface including the concentric rings, and exits the fixture through a textured exit surface opposite the entry surface.