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Title: Luminaire with controllable light emission

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.

Inventors:
; ; ; ; ; ; ; ; ;
Issue Date:
Research Org.:
Cree, Inc., Durham, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576311
Patent Number(s):
10416377
Application Number:
15/450,578
Assignee:
Cree, Inc. (Durham, NC)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
F - MECHANICAL ENGINEERING F21 - LIGHTING F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
DOE Contract Number:  
EE0007620
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017 Mar 06
Country of Publication:
United States
Language:
English

Citation Formats

Girotto, Claudio, Tarsa, Eric, Snell, Nathan Ray, Ibbetson, James, Youmans, Mark, Lowes, Theodore D., Keller, Bernd, Creasman, Ethan, Bernard, Randy Levy, and Dungan, William L. Luminaire with controllable light emission. United States: N. p., 2019. Web.
Girotto, Claudio, Tarsa, Eric, Snell, Nathan Ray, Ibbetson, James, Youmans, Mark, Lowes, Theodore D., Keller, Bernd, Creasman, Ethan, Bernard, Randy Levy, & Dungan, William L. Luminaire with controllable light emission. United States.
Girotto, Claudio, Tarsa, Eric, Snell, Nathan Ray, Ibbetson, James, Youmans, Mark, Lowes, Theodore D., Keller, Bernd, Creasman, Ethan, Bernard, Randy Levy, and Dungan, William L. Tue . "Luminaire with controllable light emission". United States. https://www.osti.gov/servlets/purl/1576311.
@article{osti_1576311,
title = {Luminaire with controllable light emission},
author = {Girotto, Claudio and Tarsa, Eric and Snell, Nathan Ray and Ibbetson, James and Youmans, Mark and Lowes, Theodore D. and Keller, Bernd and Creasman, Ethan and Bernard, Randy Levy and Dungan, William L.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

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