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. 24, 2019
Filed:
Mar. 15, 2013
Cree, Inc., Durham, NC (US);
Craig Raleigh, Racine, WI (US);
Kurt S. Wilcox, Libertyville, IL (US);
IDEAL Industries Lighting LLC, Sycamore, IL (US);
Abstract
A one-piece optical member with a plurality of secondary lenses over corresponding LED light sources, the one-piece optical member comprises (a) each with an outward lens flange surrounding a light-transmitting portion which is formed by a plurality of layers and has an asymmetric inner surface defining a pair of cavities with at least one of the plurality of layers at least partially extending between the pair of cavities, a portion of the inner-surface which defines one of the cavities is at least partially formed by another of the plurality of layers which is bonded to the at least one layer extending between the pair of cavities. The polymeric materials may be different; e.g., the innermost lens layer may be of an LSR material. The invention is also a method of manufacturing the one-piece optical member and an LED light fixture with the one-piece member over a plurality of LED light sources spaced on a circuit board.