Lighting Science Group Corporation

Ideal Industries Lighting LLC

Other

Cree Gmbh

Mark Penley Boomgaarden

Eric Holland

Shane Sullivan

David A Henderson

Addy S Widjaja

Fredric S Maxik

Wei Sun

Rick LeClair

Ryan Chase Kelley

Emilio Flores

Ricardo Romeu

Jin Hong Lim

Robert Rafael Soler

Randall Levy Bernard

Raymond A Reynolds

James Lynn Schellack

Michael Balestracci

Kurt S Wilcox

Eric Thosteson

Fred Kopitzke

Curt Progl

P Joseph DeSena, Jr

David E Bartine

Matthew Regan

Daniel James Van Epps, Jr

Yong Jiang

Steve Reich

Jen Huang

Richard LeClair

Mark Andrew Oostdyk

Joseph P Chobot

Bart P Reier

Zongjie Yuan

Ran Zhou

John Wesley Durkee

Eliza Katar Grove

Craig D Raleigh

Christopher D Strom

John Beck

Julia Irvin

Eric Marsh

David DeVerter

David DeVenter

A lighting fixture with reduced glare is provided. Lighting fixtures described herein use a lens assembly to redirect light away from a housing in order to reduce a unified glaring ratio (UGR) (e.g., when viewed crosswise or endwise). The lens assembly may further provide diffusive properties which result in a more pleasing and soft light over traditional lighting fixtures. In aspects described herein, the UGR of troffer-style lighting fixtures can be improved (e.g., reduced) through lens assemblies having one or more light redirection features configured to particularly redirect light emitted at high v-angles (e.g., light emitted sideways relative to the housing at v-angles greater than 70 degrees). For example, the lens assembly may include an inner prismatic surface of a lens, an inner lens, a louver assembly (e.g., over or under a lens), or a reflector to achieve this light redirection.

Lighting fixture with lens assembly for reduced glare

Troffer-style light fixture

Embodiments of the present disclosure generally relate to light fixtures and luminaires configured to emit light. According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.

Optical waveguides for light fixtures and luminaires

Lighting fixtures that include fixture housings and light-emitting diode (LED) modules configured for tool-less attachment and detachment to the fixture housings are disclosed. Certain LED modules include LED emitters, corresponding electronics for operating the LED emitters, and at least one shaped protrusion. Certain LED modules include safety tethers that are configured to provide mechanical support during the tool-less attachment and detachment. Lighting fixtures include a lens and removable endcaps that secure the lens to the fixture housing. Certain lighting fixtures include a backup battery and a button provided in one of the endcaps for testing the backup battery. Certain lighting fixtures include a cut-out portion in the fixture housing corresponding to the shaped protrusion of the LED module for providing identification of replacement LED modules that may be attached to fixture housings.

Lighting fixtures with LED modules configured for tool-less attachment

LED troffer fixture

A light fixture with a troffer design. The light fixture includes a housing, LED assembly, and lens assembly. An inner lens can be positioned over the LED assembly to control the distribution of light. A reflector can be positioned over the LED assembly instead of the inner lens to control the light.

Troffer light fixture

A light fixture with a troffer design. One light fixture includes light guide plates that extend above a back pan of the housing. LED assemblies are connected to light guide plates and direct light into the light guide plates through one of the outer edges. Each of the light guide plates receive the light through the outer edge and directs the light outward from the outer surface. Another light fixture includes a back pan, first and second light panels that are positioned above and spaced away from the back pan. Pixels are mounted on the outer surface of the light panels with each of the pixels configured to emit light.

A lighting fixture includes a housing, a light source, and a diffuser. The light source is mounted in the housing. The diffuser is also mounted in the housing such that light emitted from the light source is provided through the diffuser towards an area of interest. The diffuser is configured such that a color of the diffuser is based on one or more characteristics of the light emitted from the light source. Providing the diffuser such that the color thereof is based on one or more characteristics of the light emitted from the light source allows the aesthetic appearance of the lighting fixture to be changed. Further, it allows the lighting fixture to better simulate outdoor environments. Finally, it allows the lighting fixture to convey information to individuals near the lighting fixture without being disruptive.

Lighting fixture including a color changing component

A single solid state luminaire product is field-configurable to a plurality of discrete coordinated color temperature (CCT) and/or maximum luminosity settings. A field-actuated control circuit may control a current ratio control circuit, which directs drive current from a power supply to selected ones, or in selected ratios to multiple ones, of heterogeneous LED strings. Additionally or alternatively the control circuit may control the power supply, to select an overall maximum level of drive current, which determines the maximum luminosity of the luminaire. Inputs for CCT and/or maximum luminosity are input to the field-actuated control circuit prior to the luminaire being removed from its product packaging. Embodiments allow a distributor to order and stock a large inventory of substantially identical luminaires from the manufacturer, yet still offer customers a variety of different CCT and/or maximum luminosity products.

Solid state luminaire with field-configurable CCT and/or luminosity

A troffer light fixture has a housing with a LED assembly positioned in the housing. The LED assembly includes at least one LED array comprising LEDs of at least two different colors. The LED assembly includes a first LED array having a first LED on a first string and a second LED on a second string and a second LED array having a third LED on a third string and fourth LED on a fourth string. A wide lens covers the LED array. A reflector assembly has a first reflective surface and a second reflective surface reflecting light from the at least one LED array laterally across the width of the wide lens. Alternatively, the LED array may be approximately one-half the width of the wide lens and the reflector may be eliminated.

LED troffer fixture having a wide lens

A single solid state luminaire product is field-configurable to a plurality of discrete coordinated color temperature (CCT) and maximum luminosity settings. A field-actuated control circuit controls a current ratio control circuit, which directs drive current from a power supply to selected ones, or in selected ratios to multiple ones, of heterogeneous LED strings. The control circuit may also control the power supply, to select an overall maximum level of drive current, which determines the maximum luminosity of the luminaire. In one embodiment, inputs to the field-actuated control circuit are input from exterior to the luminaire product packaging. Embodiments allow a distributor to order and stock a large inventory of substantially identical luminaires from the manufacturer, yet still offer customers a variety of different CCT and maximum luminosity products.

A luminaire that includes a heat spreader, a heat sink diametrically outboard of the heat spreader, an optic retained by the heat spreader, a light source disposed on the front side of the heat spreader, and a power conditioner disposed on the heat spreader. The power conditioner is disposed on the same side of the heat spreader as the light source. The heat sink includes fins that alternate with adjacently disposed and radially oriented recesses.

Low profile light

A luminaire comprising a base, a circuitry housing attached to the base and comprising circuitry, a first rotational structure attached to the circuitry housing, a second rotational structure attached to the first rotational structure, and a lighting apparatus attached to the second rotational structure. The circuitry is positioned in electrical communication with each of the base and the lighting apparatus. The first rotational structure is attached to the circuitry housing so as to rotate about a first rotational axis that is parallel to a longitudinal axis of the luminaire. The second rotational structure is attached to the first rotational structure so as to rotate about a second rotational axis that is parallel to a transverse axis of the luminaire.

Gimbal luminaire

A light fixture has a linear LED array and a lens having a first surface and a second surface that covers the LED array. The light being received at the first surface and emitted from the second surface. The lens includes a plurality of light shaping features on at least one of the first surface and the second surface where the plurality of light shaping features are configured to generate a directional light distribution pattern. The light pattern may be symmetric or asymmetric relative to a longitudinal axis of the light fixture. The lens may comprise a plurality of sections where the plurality of sections made of material having different optical properties.

LED light fixture with light shaping features

Growing community of inventors

Satellite Beach, FL, United States of America

Mark Penley Boomgaarden