Cree Lighting USA LLC

Benjamin A Jacobson

Eric J Tarsa

Claudio Girotto

Tushar M Ranchod

Andre E Adams

Bernd P Keller

James Ibbetson

Theodore D Lowes

Mark Youmans

Chandan Bhat

Shawn Patrick Keeney

Jean-Claude David Ramey DeSugny

Amruteshwar Hiremath

Michael Leung

David Stone

Clark Pentico

Eric Tarsa

Brendan Hugo Hamel-Bissell

Luminaires are described herein employing waveguides and associated architectures for dynamic alteration of illuminance distribution patterns. The waveguide includes a light extraction component. The waveguide transmits light from a light source to the light extraction component by total internal reflection (TIR). The light extraction component includes one or more reversibly moveable surfaces for altering illuminance distribution patterns of the luminaire in response to one or more forces applied to the light extraction component by a force application assembly of the luminaire.

Waveguide-based light sources with dynamic beam shaping

A lighting fixture appears as a skylight and is referred to as a skylight fixture. First and second light engines of the fixture provide different color points, peak light intensity angles, far-field light distribution characteristics, and/or circadian stimulus values. A skylight fixture may include a sky-resembling assembly and a plurality of sun-resembling assemblies, with dedicated optical assemblies and/or light sources. A lighting fixture may include multiple waveguides that different extraction feature patterns and/or may be sequentially arranged.

Lighting fixture and methods

Growing community of inventors

Santa Barbara, CA, United States of America

Benjamin A Jacobson