Abstract: A thoroughfare lighting device may include a housing configured to be attached to a thoroughfare surface, having a top surface, a proximal face, a distal face, and first and second opposing sidewalls, a driver circuit, a plurality of light-emitting diodes electrically coupled to the driver circuit comprising a first set of LEDs configured to emit a generally white light, and a second set of LEDs configured to emit colored light that is observable by an observer. The lighting device may also include an optic carried by the housing and positioned in optical communication with the plurality of LEDs. The color of light emitted by the second set of LEDs may be selectable to indicate a condition of the thoroughfare in a direction of travel of the observer. Additionally, the first sidewall may taper in a direction of the distal face.

Abstract: A luminaire comprising a heat sink, a light source carried by the heat sink to emit a source light and comprising a heat spreader having inner and outer surfaces and a plurality of LEDs carried by a circuit board and disposed generally along a periphery of the inner surface and positioned in thermal communication therewith. The luminaire comprises a reflector disposed coextensively with the LEDs and comprising an aperture in a medial region thereof, an outer edge of the aperture defining an inner rim of the reflector and a light guide positioned between the reflector and the light source, the light guide characterized by a height defined as the distance between the inner surface of the heat spreader and a plane defined by the inner rim of the reflector, the light guide configured to change the source light into a shaped light that is directed through the aperture.

Abstract: A luminaire comprising a lamp comprising an outer structure, a light source configured to emit a source light and carried by the outer structure, a middle structure connected to the outer structure, and a bi-pin base connected to the middle structure. The lamp may further comprise a light guide having an inner surface and an outer surface and a heat dissipating frame having a contact surface in thermal communication with the outer surface of the light guide and comprising a plurality of heat sink rods positioned to abut each other to define the contact surface of the heat dissipating frame. The light source may be configured to emit the source light so as to be incident upon the inner surface of the light guide. The light guide may be configured to change the source light into a shaped light that illuminates a space proximate to the luminaire.

Abstract: A wireless pairing system and method are presented, the system having a network and a luminaire, which may include an electrical base, an enclosure, and a heat sink, as well as a light source, a network interface, a camera, and a controller in communication with the electrical base. The light source, the network interface, and the camera may be in communication with the controller, the controller having a central processing unit (CPU), and an input/output (I/O) interface. The controller, the camera, the light source and the network interface may be carried by the enclosure. The camera may capture an image having a configuration code associated with the network and the CPU may analyze the image to determine the existence of the configuration code. The CPU may then configure the network interface to connect the luminaire to the network so that the luminaire may be operated or monitored through the network.

Abstract: A lighting system for accenting a region of a target surface comprising a color matching engine, a plurality of light sources, a color capture device configured to measure light reflected by a target surface, and a computerized device configured to operate the plurality of light sources to emit an analysis light so as to be incident upon the target surface and identify a region of the target surface that reflects two or more wavelength ranges of light using a pattern recognition algorithm, defining a detected pattern having wavelength ranges. The color matching engine is configured to perform a matching operation that operates to determine dominant wavelength(s) of the wavelength ranges and polychromatic lights including or excluding dominant wavelength(s). The computerized device operates the light sources to emit a combined light being sequentially each of the polychromatic lights.

Abstract: A low profile luminaire to be carried by a lighting fixture. The luminaire may include a light source that comprises light-emitting diodes (LEDs), a heat sink thermally coupled to and disposed diametrically outboard of the light source, a reflector in optical communication with and disposed diametrically inboard of the light source, and a light guide in optical communication with at least one of the light source and the reflector and disposed therebetween. Light emitted from the light source may be reflected by the reflector into an edge of the light guide. Light propagating through the light guide may be projected into the environment at a uniform luminance. The luminaire may be dimensioned to cover a nominally sized four-inch can light fixture and/or electrical junction box. A method aspect of the invention details steps for assembling the low profile luminaire with light guide.

Abstract: A luminaire may be carried by a lighting fixture and may have a generally concave elongate-shaped housing defining an optical chamber and an aperture. The luminaire may include a plurality of lighting devices each having a heat sink, a light source, and a magnetic attachment member. The magnetic attachment member may magnetically bind a lighting device to pads proximate to ferromagnetic material in the housing. Light emitted by the light source may enter the optical chamber and pass through the aperture in a generally orthogonal direction in relation to the orientation of the device. Electrical power may be delivered by one or more power supply unit of either an external or an on-board type, and by using either inductive or conductive coupling. Network interfaces may enable communication of control instructions among a multiple controllers located either within a single luminaire or distributed among multiple luminaires.

Abstract: A lighting device may include an electrical base, a stabilizer adapted to be matingly connected to the electrical base, a body member, and an optic connected to the body member and defining an optical chamber. A light source may be positioned within the optical chamber and in electrical communication with the electrical base. The stabilizer may be transitionable from an engaged position with the electrical base and a disengaged position with the electrical base. The disengaged position allows for the stabilizer to be translated longitudinally with respect to the base member. The engaged position slidably fixes the stabilizer with respect to the heat sink by reducing space between the electrical base, the enclosure and the heat sink.

Abstract: An electrical device and method are presented, the device having an enclosure defining an interior volume sealed from the environment and an electronic lighting apparatus, which may include a heat generating element such as a light source, a heat sink, and a fluid flow generator. The heat sink may be positioned partially within the sealed interior volume and adjacent the heat generating element and transfer heat therefrom. The fluid flow generator may create a flow of fluid to transport heat away from the heat sink and to the enclosure. The electronic lighting apparatus may be carried by the enclosure and partially disposed within the interior volume of the enclosure. The electrical device may further include an optic carried by the enclosure that may cooperate with the enclosure to define the sealed interior volume.

Abstract: A lighting device comprising a heat sink, a light source in thermal communication with the heat sink, and a power source operably coupled with the light source. The heat sink, light source, and power source are positioned in a cavity defined by an enclosure and an optic which present a puck-like shape when assembled. A magnetic attachment member installed in the cavity of the enclosure magnetically binds the lighting device to a ferromagnetic material external to the lighting device. The power source receives an AC input voltage through inductive and/or conductive coupling, and converts the voltage to DC to support light-emitting diodes (LEDs). A controller may operate the light source based on instructions transmitted by a beam adjustment device and/or an occupancy sensor. A method aspect of the invention details steps for assembling the lighting device.

Abstract: A bleeder circuit includes a first resistor, a thermistor, a transistor, a second resistor, and a diode section. The first resistor biases the transistor into an always-on status. The second resistor prevents current from flowing through the thermistor responsive to a voltage at the positive terminal being greater than a minimum forward voltage of a load. The thermistor increases in electrical resistance, limiting the current flowing therethrough and preventing damage to the load responsive to the load short-circuiting.

Abstract: A fluorescent tube retrofit luminaire includes a lamp, a light guide, and a heat dissipating frame. The lamp may include a bi-pin base, middle structure, and outer structure, which may include a light-emitting diode (LED)-based light source in thermal communication with a finned heat sink section of the middle structure. Light emitted from the light source may be distributed generally along the length and/or width of the light guide. A bi-pin connector in the light guide may attach the luminaire to a first fluorescent socket. The bi-pin base may be received by a mounting aperture in the light guide before anchoring the luminaire to a second fluorescent socket using a pin-lock. The heat dissipating frame may be in thermal communication with both the light guide and the heat sink section of the lamp.

Abstract: A lamp connector may include a base member, a top member and connector members that connect the base member to the top member. The base member may include arcuate passageways in a bottom portion and a first and second pair of opposing sidewall members that extend upwardly from the bottom portion. The top portion of each of the first pair and second pair of opposing sidewall members may have a cutaway portion having a radius. The radius of the cutaway portion of the first pair of opposing sidewalls may be different from the radius of the second pair of opposing sidewalls. The cutaway portion may be formed to fit a lamp connecting member. The base member may be selectively rotatable with respect to the top member so as to enable engagement between one of the first pair of sidewalls and the second pair of sidewalls with the lamp connecting member.

Abstract: A lighting device may include a base, a housing, a driver circuit, an optic, a thermally-conductive fluid, a LED filament structure, and a fluid flow generator. The base may have an electrical contact. The housing may be attached to the base at a first end and have an internal cavity. The driver circuit may be positioned within the internal cavity and may be in electrical communication with the electrical contact. The optic may be attached to a second end of the housing and have an inner surface which may define an optical chamber. The thermally-conductive fluid may be positioned within the optical chamber. The LED filament structure may be positioned within the optical chamber and may be in electrical communication with the driver circuit. The fluid flow generator may be positioned in fluid communication with the optical chamber and may be in electrical communication with the driver circuit.

Abstract: A lighting device according to another embodiment of the invention for directing source light within a source wavelength range in a blue wavelength range in a desired output direction may comprise a MEMS device that may include a DMD that includes an array of MEMS cells, each MEMS cell including an operative surface to receive and redirect the source light towards the desired output direction. The array of MEMS cells may include first and second pluralities of MEMS cells including first and second conversion coatings applied to the operative surfaces thereof configured to convert source light into first and second wavelength ranges. Furthermore, the repositionable surface of each MEMS cell may be positionable between multiple angles to reflect the converted light. The lighting device may comprise a third plurality of MEMS cells where the operative surfaces thereof is devoid of a conversion coating, or, alternatively, comprises a third conversion coating.

Abstract: A lighting device for emitting light in selective directions including a light source structure member, a plurality of lighting devices attached to the light source structure member, a controller, a power supply, and an optic carried by the light source structure member and including a plurality of facets. Each light source of the plurality of light sources may be positioned such that light emitted thereby is emitted through a facet of the plurality of facets of the first optic. Each facet of the plurality of facets may be configured to redirect light in a direction that is unique from the other facets of the plurality of facets. Additionally, the controller may be configured to selectively operate each light source of the plurality of light sources. Multiple pairs, or combinations, of light source structure members and optics may be included.