US Patent No. 10,172,215


Patent No. 10,172,215
Issue Date January 01, 2019
Title Led Lamp With Refracting Optic Element
Inventorship Eric Tarsa, Goleta, CA (US)
Michael John Bergmann, Raleigh, NC (US)
David Power, Morrisville, NC (US)
Jeremy Johnson, Fuquay Varina, NC (US)
Jean Claude deSugny, Potomac, MD (US)
Assignee Cree, Inc., Durham, NC (US)

Claim of US Patent No. 10,172,215

1. A LED lamp comprising:at least two LEDs providing light of at least two different spectral outputs; and
an optic element comprising a refracting entry surface disposed to receive the light from the at least two LEDs, the refracting entry surface comprising a plurality of refracting surfaces wherein the plurality of refracting surfaces comprise a plurality of convex refracting surfaces alternating with a plurality of concave refracting surfaces, the refracting entry surface refracting the light tangentially.