Cree Gmbh

Ideal Industries Lighting LLC

Cree Lighting USA LLC

Cree Lighting Company

Other

Koninklijke Philips Corporation N.v.

Creeled, Inc.

Andrews, Peter S.

Eric J Tarsa

Bernd P Keller

James Ibbetson

Theodore D Lowes

Kurt S Wilcox

Michael S Leung

Gerald H Negley

Zongjie Yuan

Tao Tong

Brian Thibeault

Mark Youmans

Claudio Girotto

Nicholas William Medendorp, Jr

Benjamin A Jacobson

Ronan Letoquin

Hormoz Benjamin

John Wesley Durkee

Antony Paul Van De Ven

Peter Scott Andrews

John Adam Edmond

Jesse Colin Reiherzer

Sten Heikman

Thomas Yuan

Michael Mack

David Beardsley Slater, Jr

Charles M Swoboda

Thomas Goldthwaite Coleman

Robert C Glass

David R Stone

Shawn Patrick Keeney

Jean-Claude David Ramey DeSugny

Fabian Jean-Daniel Rol

Steven P DenBaars

David T Emerson

Bin Hou

Ted Lowes

Paul Kenneth Pickard

Michael John Bergmann

James Michael Lay

Ban Poh Loh

Ronan P Le Toquin

Long Larry Le

Chandan Bhat

Maryanne Becerra

Jean-Claude De Sugny

Ben Jacobson

Michael Dunn

Christopher P Hussell

Nathan R Snell

Arpan Chakraborty

Ashay Chitnis

Nicholas W Medendorp

Yankun Fu

Peter Guschl

Jean-Claude David Ramey De Sugny

James Seruto

Ihor A Lys

Frederick Marshall Morgan

Kevin Dowling

Adam William Saxler

William Laird Dungan

Mark D Edmond

Brian Thomas Collins

Randall Levy Bernard

David Power

Randolph Cary Demuynck

Jeffrey Carl Britt

Robert D Underwood

Jasper S Cabalu

Ethan Timothy Creasman

Paul Thomas Fini

Monica Hansen

Amber Christine Salter

Ronan P LeToquin

Kenneth Morgan Davis

Jeremy Johnson

Amruteshwar Hiremath

Randy Bernard

Dana Deskiewicz

Jiayin Ma

Peter Kozodoy

Erin Welch

Jean Claude deSugny

Fabian Rol

Praveen Yadev

Michael Leung

Ethan Creasman

David Stone

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

A lens for distribution of light predominantly toward a preferential side from a light emitter having an emitter axis. The lens has a faceted output region, a smooth output surface and at least one reflective surface which reflects light through total-internal-reflection (TIR) toward the faceted output region. The faceted output region is formed by pairs of transverse surfaces each surface of which redirects the received light to provide a composite illuminance pattern. The lens may further have faceted input surfaces at least partially defining a light-input cavity about the emitter axis. The faceted input region are formed by pairs of transverse surfaces each surface of which redirects the received light.

Hybrid lens for controlled light distribution

Generally, embodiment(s) disclosed herein may include modular luminaires and customizable luminaire combinations to produce desired overall illumination patterns, modular luminaires interchangeable between one or more lighting systems/luminaires having differing configurations, and/or luminaires with portions thereof formed primarily by optical waveguides, e.g., a wall sconce where primarily only waveguides extend from the wall. Further, contemplated throughout this disclosure is modification of panel-style and/or blade-style waveguide(s) for use with luminaire configurations having different sizes, shapes, and structural elements including as modular luminaires for use in creating further customizable lighting systems/luminaires.

Lighting fixture with waveguide

According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.

Luminaires using waveguide bodies and optical elements

A light fixture, e.g., as an artificial skylight, in which light within a region defined by x, y color coordinates (0.37, 0.34), (0.35, 0.38), (0.15, 0.20), and (0.20, 0.14) exits a first light engine, and light within a region defined by coordinates (0.29, 0.32), (0.32, 0.29), (0.41, 0.36), (0.48, 0.39), (0.48, 0.43), (0.40, 0.41), and (0.35, 0.38) exits a second light engine. Also, light fixtures in which a second light engine comprises a sidewall, and light exiting a first light engine passes through space defined by the sidewall; light fixtures in which first and second light engines are able to output light providing different CS values at a luminance; light fixtures in which light incident on a surface of the fixture and cumulative light exiting the fixture have different color points; light fixtures in which light distribution characteristics of light engines differ; and/or other features. The invention also relates to corresponding methods.

Light fixtures and methods

In one aspect, optic assemblies are provided comprising a collimating optic directing light along a collimation axis and light redirection elements comprising facets for redirecting a portion of the light in one or more directions away from the collimation axis.

Optic assemblies and applications thereof

A semiconductor light emitting device includes a light emitting diode (LED) chip, a recipient luminophoric medium on the LED chip, a patterned superstrate on the recipient luminophoric medium opposite the LED chip, the patterned superstrate comprising a patterned superstrate on the recipient luminophoric medium opposite the LED chip, the patterned superstrate comprising a patterned surface that is configured to reduce a variation in a color point of a light emitted by the semiconductor light emitting device as a function of an angle off an optical axis of the LED chip.

Semiconductor light emitting devices including superstrates with patterned surfaces

A lighting fixture appears as a skylight and is referred to as a skylight fixture. The skylight fixture has a sky-resembling assembly and a plurality of sun-resembling assemblies. The sky-resembling assembly has a sky-resembling optical assembly and a sky-specific light source, wherein light from the sky-specific light source exits a planar interior surface of the sky-resembling light optical assembly as skylight light. The plurality of sun-resembling assemblies are arranged adjacent one another and extend downward from a periphery of the sky-resembling assembly. Each of the plurality of sun-resembling assemblies has a sun-resembling optical assembly and a sun-specific light source, wherein light from the sun-specific light source exits a planar interior surface of the sun-resembling optical assembly as sunlight light.

Skylight fixture emulating natural exterior light

A waveguide body comprises a length from a first end to a second end along a longitudinal axis, and a coupling portion that comprises first and second coupling surfaces. The first and second coupling surfaces define, at least in part, an elongate coupling cavity along the entire length of the waveguide body and a surface located opposite the coupling cavity. The waveguide body further comprises first and second opposed sections extending along the length of the waveguide body. The first and second opposed sections further comprise respective first and second lower surfaces disposed at different first and second side section angles with respect to a first axis lying in a plane normal to the longitudinal axis. The first axis bisects the coupling portion. Among other things, such a waveguide may be included in a luminaire along with a light source.

Optical waveguide bodies and luminaires utilizing same

A luminaire having a waveguide suspended beneath a mounting element, the waveguide has a first surface proximal to the mounting element, a second surface distal to the mounting element, and an edge between the first and the second surfaces. At least one cavity extends into the waveguide from the first surface to the second surface. A LED component is coupled to the waveguide so as to emit light into the cavity. LED support structures are also disclosed.

Simplified low profile module with light guide for pendant, surface mount, wall mount and stand alone luminaires

Growing community of inventors

Goleta, CA, United States of America

Eric J Tarsa