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. 17, 2019
Filed:
Mar. 06, 2017
Cree, Inc., Durham, NC (US);
Claudio Girotto, Santa Barbara, CA (US);
Eric Tarsa, Goleta, CA (US);
Nathan Ray Snell, Raleigh, NC (US);
James Ibbetson, Santa Barbara, CA (US);
Mark Youmans, Goleta, CA (US);
Theodore D. Lowes, Lompoc, CA (US);
Bernd Keller, Santa Barbara, CA (US);
Ethan Creasman, Raleigh, NC (US);
Randall Levy Bernard, Cary, NC (US);
William L. Dungan, Cary, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
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.