Cree Gmbh

Ideal Industries Lighting LLC

Douglas E Keiter

Kurt S Wilcox

John K Roberts

David P Goelz

Randy Bernard

Andrew Dan Bendtsen

Boris Karpichev

Nicholas William Medendorp, Jr

Yuequan Hu

Michael M Walters

John Wesley Durkee

Michael B Gilliom

Danwei Liu

In one aspect, luminaires are described herein having sensor modules integrated therein. In one aspect, a luminaire described herein comprises a light emitting face including a LED assembly. A sensor module is integrated into the luminaire at a position at least partially overlapping the light emitting face. In another aspect, a luminaire described herein comprises a LED assembly and a driver assembly. A sensor module is integrated into the luminaire along or more convective air current pathways cooling the LED assembly or driver assembly.

LED luminaire having enhanced thermal management

A lighting fixture includes a solid-state light source and driver circuitry. The solid-state light source includes at least one light emitting diode (LED). The driver circuitry includes one or more silicon carbide (SiC) switching components, and is coupled to the solid-state light source. Further, the driver circuitry is configured to receive an alternating current (AC) input voltage and generate a driver output current for driving the at least one LED from the AC input voltage. By using silicon carbide (SiC) for the switching components in the driver circuitry, the efficiency of the driver circuitry and thus the lighting fixture may be significantly increased, while simultaneously reducing the cost and complexity of the driver circuitry and thus the lighting fixture when compared to conventional lighting fixtures.

Solid-state lighting fixture with compound semiconductor driver circuitry

In one aspect, luminaires are described herein enabling independent thermal management of driver and LED assemblies. For example, a luminaire comprises a driver assembly vertically integrated with a LED assembly, the driver assembly comprising a driver heatsink having an interior in which a circuit board assembly is positioned, and the LED assembly comprising an array of LEDs and LED heatsink, wherein a barrier is positioned between the driver heatsink and the LED heatsink, separating convective cooling of the driver assembly from convective cooling of the LED assembly.

Lighting apparatus

Driver circuitry is coupled between a power supply and at least one LED in a solid-state lighting fixture, such that a non-isolated direct current (DC) path exists between the power supply and the at least one LED. The driver circuitry is configured to receive an AC input voltage and generate a driver output current for driving the at least one LED from the AC input voltage. By using driver circuitry that is non-isolated from the at least one LED in the solid-state lighting fixture, the efficiency of the driver circuitry may be increased, while simultaneously reducing the cost and complexity of the driver circuitry compared to conventional driver circuitry.

High efficiency driver circuitry for a solid state lighting fixture

A lighting apparatus includes at least one light emitting device and a reconfigurable driver circuit configured to drive the at least one light emitting device with an intensity that varies responsive to a dimming signal according to an adjustable mapping of the dimming signal to output of the light emitting device. In some embodiments, the mapping may be configurable using circuit component selection. In further embodiments, the mapping may be provided by a data input.

Lighting apparatus and methods using reconfigurable dimming mapping

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Apex, NC, United States of America

Douglas E Keiter