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. 03, 2019
Filed:
Mar. 15, 2013
Cree, Inc., Durham, NC (US);
Craig Raleigh, Racine, WI (US);
Kurt S. Wilcox, Libertyville, IL (US);
Cree, Inc., Durham, NC (US);
Abstract
A unitary optic member for directing light from a plurality of LED light sources on a board beneath the optic member which has a plurality of lens portions surrounded by and interconnected by a non-lens portion. The optic member being formed by a plurality of layers with layer-to-layer interface bonding between adjacent layers and comprising an asymmetric light-receiving inner-surface defining a pair of cavities, a portion of the inner surface which defines one of the cavities is at least partially formed by an innermost layer of the plurality of layers, at least a portion of another of the plurality of layers extending inwardly between the pair of cavities and being bonded to the innermost layer.