Patent ID: 9285098
Filing Date: 2016-03-15
CPC Classification: F21V,F21Y,G02B

Claim Text:
1. A light emitting diode luminaire, comprising: an array of light emitting diodes mounted on a circuit board; and a generally planar lens element positioned adjacent a corresponding one of each of the light emitting diodes, each generally planar lens element having a plurality of concentric ridges circumscribing a top center of the generally planar lens element and projecting from a surface of the generally planar member to define facets for redirecting light emitted from the corresponding light emitting diode, wherein at least one of the concentric ridges includes a first concave facet facing toward a top center of the generally planar lens element, a second concave facet facing away from the top center of the generally planar lens element, and a third concave facet extending between an upper end of the first facet and an upper end of the second facet.