Quarkstar LLC

Quickstar LLC

Louis Lerman

Allan Brent York

Wilson Dau

Robert V Steele

George Lerman

Jacqueline Teng

Hans Peter Stormberg

Robert C Gardner

Brian D Ogonowsky

Ingo Speier

Ferdinand Schinagl

George Edward Smith

Michael David Henry

Roland H Haitz

Christopher Haydn Lowery

Eric Bretschneider

Hans-Peter Stormberg

Andrew Tien-Man Ng

Andrew Stuart Gladwin

Chris Lowery

Cary Nevin Eskow

Christopher H Lowery

Jaqueline Teng

A solid state lamp includes a connector and a bulb portion with multiple strips.

Solid state lamp using light emitting strips

A device includes a LED die having a peak emission at a blue or shorter wavelength, a LED die having a peak emission at a red, orange, yellow, green, or cyan wavelength, and a homogenous light conversion material positioned to receive light emitted from the LED dies. The light conversion material including: (i) a first phosphor compound having a peak emission at a green wavelength; (ii) a second phosphor compound having a peak emission at an orange wavelength; and (iii) a third phosphor compound having a peak emission at a red, orange, yellow, green, or cyan wavelength. The device is a packaged LED device and a relative concentration of the phosphor compounds and a relative luminosity of the LED dies are selected so the device emits white light satisfying a preference P1 and a fidelity F3 according to a TM-30 standard for color rendering.

Luminaire and lighting control system

A luminaire includes a first light source and a second light source, the first and second light source operatively configured to provide amounts of light independently controllable during operation; and an optical system having an input aperture system and an output aperture system. The output aperture system is displaced by a predetermined distance along a forward direction from the input aperture system. The optical system is operatively coupled with the first and second light source and configured to direct light received at the input aperture system to the output aperture system. The output aperture system is configured to output light from the first light source in first directions and light from the second light source in second directions at least in part different from the first directions.

Luminaires for spatial dimming

A luminaire includes multiple light-emitting elements (LEEs); a base supporting the LEEs; and a first wall and a second wall each extending along a first direction from a respective first end facing the LEEs to a respective second end. The first and second walls have light-reflective surfaces facing each other. In one or more cross-sectional planes parallel to the first direction, the light-reflective surfaces of the first and second walls have first portions that curve in opposite directions, second portions that are parallel, and third portions that curve in like directions. The first portions are arranged facing the LEEs to provide an input aperture that receives light from the LEEs. The third portions are arranged to provide an exit aperture that outputs output light into an ambient environment. The first and second walls are configured to propagate light from the input aperture to the exit aperture.

Luminaire with hollow optical systems

A system includes two or more phosphor-containing white LEDs (or other color-shifting artificial light sources) selected so that their combined color shift over at least 8,000 hours (e.g., at least 10,000 hours, at least 20,000 hours, at least 30,000 hours, at least 40,000 hours, up to 200,000 hours, up to 100,000 hours, up to 80,000 hours) of operation is less than at least one of the LED's (or the other color-shifting artificial light source's) color shift over that time. Here, the combined color shift (Δu′v′) over the at least 8,000 hours (e.g., at least 10,000 hours, at least 20,000 hours, at least 30,000 hours, at least 40,000 hours, up to 200,000 hours, up to 100,000 hours, up to 80,000 hours) of operation can be less than 0.007 (e.g., 0.006 or less, 0.005 or less, 0.004 or less, 0.003 or less, 0.002 or less, 0.001 or less, 0.0005 or less).

Lifetime color stabilization of color-shifting artificial light sources

A plant growth lighting system includes a plant support and a light guide luminaire module, the plant support being configured to hold one or more plants. The light guide luminaire module includes at least one light-emitting element (LEE), a light guide arranged to receive light emitted by the at least one LEE at a first end of the light guide and guide the received light in a forward direction to a second end thereof, and an extractor arranged to receive light from the second end of the light guide and configured to output light. The light guide luminaire module is disposed relative to the plant support such that at least a portion of the light output by the extractor impinges on the plants in predetermined directions.

Plant growth lighting systems

A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

Illumination devices including multiple light emitting elements

An illumination device includes a plurality of light-emitting elements (LEEs); a light guide extending in a forward direction from a first end to a second end to receive at the first end light emitted by the LEEs and to guide the received light to the second end; an optical extractor optically coupled to the second end to receive the guided light, the optical extractor including a redirecting surface to reflect a first portion of the guided light, the reflected light being output by the optical extractor in a backward angular range, and the redirecting surface having one or more transmissive portions to transmit a second portion of the guided light in the forward direction; and one or more optical elements optically coupled to the transmissive portions, the optical elements to modify the light transmitted through the transmissive portions and to output the modified light in a forward angular range.

Illumination device for direct-indirect illumination

A luminaire () includes a base () supporting multiple light-emitting elements (LEEs) (); and a first wall (-) and a second wall (-) each extending along a first direction (). The first and second walls (--) have light-reflective surfaces facing each other and forming a hollow channel (). The light-reflective surfaces have first portions () that curve in opposite directions, second portions () that are parallel, and third portions () that curve in like directions. The first portions () are arranged facing the LEEs () to provide an input aperture () that receives light from the LEEs (). The third portions () are arranged to provide an exit aperture () that outputs output light into an ambient environment. The first and second walls (--) are configured to propagate light from the input aperture () to the exit aperture ().

Growing community of inventors

Las Vegas, NV, United States of America

Louis Lerman