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LUMINAIRE WITH CONTROLLABLE LIGHT EMISSION

United States Patent Application

20170322364
A1
View the Complete Application at the US Patent & Trademark Office
A luminaire includes a first waveguide having a first primary light emitting surface directed in a first direction and a first secondary light emitting surface directed in a second direction. A second waveguide having a second primary light emitting surface directed in the second direction and a second secondary light emitting surface directed in the first direction. A first plurality of LEDs are optically coupled to the first waveguide and a second plurality of LEDs are optically coupled to the second waveguide. The first and second waveguides are independently operable. The first and second plurality of LEDs may comprise LED groups where each of the LED groups are independently controllable. The light emission pattern and light properties of the emitted light are controllable
Girotto, Claudio (Santa Barbara, CA), Tarsa, Eric (Goleta, CA), Snell, Nathan Ray (Raleigh, NC), Ibbetson, James (Santa Barbara, CA), Youmans, Mark (Goleta, CA), Lowes, Theodore D. (Lompoc, CA), Keller, Bernd (Santa Barbara, CA), Creasman, Ethan (Raleigh, NC), Bernard, Randall Levy (Cary, NC), Dungan, William L. (Cary, NC)
15/ 450,578
March 6, 2017
REFERENCE REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under Contract No. DE-EE0007620 awarded by The Department of Energy. The government has certain rights in the invention.