Abstract: A thermal protection device includes a heating circuit that develops a first heat magnitude when exposed to a temperature below a threshold and further develops a second heat magnitude greater than the first heat magnitude when exposed to a temperature above the threshold. A thermal circuit breaker is disposed in heat communication with the heating circuit and has component having a holding temperature greater than the threshold and a trip temperature greater than the holding temperature.

Abstract: Solid state light emitting devices include one or more light affecting elements (e.g., of one or more light-transmissive, light-absorptive, light-reflective, and/or lumiphoric materials) formed on, over, or around at least one solid state light emitter, with the light affecting elements including multiple fused elements embodying plurality of dots, rods, or layers such as may be formed by three-dimensional (3D) printing. At least one electrically conductive path in electrical communication with a solid state light emitter may be formed by selective material deposition such as 3D printing. Light affecting elements may be individually tailored to individual solid state light emitters, such as to yield different optical distributions for interactions between each specific emitter and its corresponding light affecting element.

Abstract: A lighting apparatus is provided with a housing having an upper assembly, a lower assembly, and a middle assembly. A lighting module is positioned within the housing in which the lighting module includes at least one light emitting diode (LED). A reflector is positioned within an outer lens of the middle portion of the housing above the lighting module. A reflector plate is positioned within the housing at approximately the same level or below the lighting module. The reflector plate is configured to reflect light emitted by the at least one LED after the light is reflected by the reflector. The outer lens is configured to refract light emitted by the at least one LED after the light has been reflected by the reflector.

Abstract: According to one aspect, an optical lens includes a substrate having a first side and a second side opposite the first side. The optical lens includes a first pattern of Fresnel features having a first focal length disposed on the first side and a second pattern of Fresnel features having a second focal length disposed on the second side. The first pattern of Fresnel features is disposed perpendicular to the second pattern of Fresnel features, and the first focal length is different from the second focal length.

Abstract: A luminaire for use in lighting a large open space such as a parking lot or deck of a parking garage includes a plurality of optical waveguides disposed in side-by-side relationship and together defining a closed path and at least one LED associated with each optical waveguide and disposed at a first end of the associated optical waveguide.

Abstract: A light-emitting device comprising (a) a submount having front and back sides and including a ceramic layer; (b) an array of light-emitting diodes (LEDs) on the front side; and (c) a lens overmolded on the submount and covering the LED array. In some embodiments, the submount comprises at least two electrically-conductive contact pads on the front side, and each LED in the array is secured with respect to one of the contact pads.

Abstract: A waveguide body comprises a central section, first and second side sections, and a coupling portion located in the central section. Each of said side sections extend away from the central section along opposing first and second directions, respectively. The coupling portion includes an elongate coupling cavity symmetric about a plane extending in a third direction transverse to the first and second directions and configured to receive a light source. The coupling portion includes a control surface configured to collimate a portion of light emitted from the light source into at least one substantially collimated ray group. Light is emitted above and below the waveguide body. A portion of the light is emitted above and below the waveguide body at an angle other than parallel to an optical axis of the light source.

Abstract: A luminaire includes a housing, an optical waveguide disposed in the housing comprising a plurality of light coupling cavities, and a plurality of LEDs disposed in the housing adjacent the plurality of coupling cavities. A mounting apparatus is adapted to mount the luminaire on a roadway stanchion.

Abstract: An LED lighting fixture including a housing and an LED assembly secured with respect to the housing to permit air/water-flow over the LED assembly. The LED assembly includes a plurality of LED-array modules on an equal plurality of individual heat sinks. The housing defines an air gap permitting air/water-flow to and from the heat sinks.

Abstract: An LED apparatus of the type including (a) a mounting board having an LED-supporting surface with an LED device thereon and (b) a lens member over the LED device establishing a light path therebetween. The inventive LED apparatus includes a lens-aligning member having front and back surfaces. The lens member includes a lens portion and a flange thereabout, the flange being attached to the front surface of the lens-aligning member such that the lens portion substantially surrounds the protruding LED device. The lens-aligning member has a first mating feature which is positioned and arranged for mating engagement with a second mating feature of the mounting board, thereby accurately aligning the lens member over the LED device by accurately aligning the lens-alignment member with the mounting board. Other aspects of the invention is a method for assembly of an LED apparatus and a method for manufacturing custom high-efficiency LED lensing for LED-array modules.

Abstract: An LED light fixture including a housing and an LED assembly secured with respect to the housing. The LED assembly includes a heat sink and an LED illuminator secured with respect to an LED-supporting region of the heat sink with heat-dissipating surfaces extending therefrom. The heat sink having front, rear and lateral sides and being open to ambient-fluid flow to and from the heat-dissipating surfaces along each of the sides.

Abstract: A luminaire for use in lighting a large open space such as a parking lot or deck of a parking garage includes a plurality of optical waveguides disposed in side-by-side relationship and together defining a closed path and at least one LED associated with each optical waveguide and disposed at a first end of the associated optical waveguide.

Abstract: Solid state light emitting devices include one or more light affecting elements (e.g., of one or more light-transmissive, light-absorptive, light-reflective, and/or lumiphoric materials) formed on, over, or around at least one solid state light emitter, with the light affecting elements including multiple fused elements embodying plurality of dots, rods, or layers such as may be formed by three-dimensional (3D) printing. At least one electrically conductive path in electrical communication with a solid state light emitter may be formed by selective material deposition such as 3D printing. Light affecting elements may be individually tailored to individual solid state light emitters, such as to yield different optical distributions for interactions between each specific emitter and its corresponding light affecting element.

Abstract: An optical component has an elongate length extending between first and second ends and a width transverse to and substantially smaller than the length and extending between first and second sides. The optical component includes a refractive portion disposed between the first and second sides and extending along the length between the first and second ends, and a plurality of separate reflective portions. At least one of the plurality of separate reflective portions is spaced from the refractive portion and extending along the length between the first and second ends.

Abstract: A luminaire for use in lighting a large open space such as a parking lot or deck of a parking garage includes a plurality of optical waveguides disposed in side-by-side relationship and together defining a closed path and at least one LED associated with each optical waveguide and disposed at a first end of the associated optical waveguide.

Abstract: According to one aspect, a luminaire comprises a waveguide body including a central section and first and second separate side sections extending away from the central section along first and second opposed directions, respectively. The central section includes a coupling portion and the waveguide body has a length and includes a plurality of light extraction features that extract light out of the side sections. At least one LED is disposed adjacent the coupling portion and is operated by a power circuit to produce light that is directed into the waveguide body by the coupling portion. At least one structural member extends along the length of the waveguide body for supporting the waveguide body and encloses at least one of the power circuit and the at least one LED.

Abstract: An LED lighting fixture including a housing comprising a single-piece wall structure defining a cavity with an LED-supporting surface therewithin. An LED illuminator is mounted at the LED-supporting surface in the cavity, the LED-supporting surface positioning the LED illuminator in a desired orientation. An LED driver may be secured against the housing which transfers heat therefrom. There may be a plurality of spaced apart LED illuminators mounted at the LED-supporting surface within the cavity. The LED lighting fixture may also include a single-piece reflector comprising a plurality of reflector cups for the LED illuminators and extending therefrom to a common forward end of the housing.

Abstract: A lamp driver responsive to a control signal that is variable in a predetermined control range includes a circuit operable in response to a value of the control signal within the predetermined control range to develop a first current and a lamp control voltage dependent upon the value of the control signal. A shutdown interface is operable in response to a value of the control signal outside of the predetermined control range to develop a second current to turn off a lamp.

Abstract: Solid state light emitting devices include lumiphor elements that are spatially segregated from electrically activated solid state emitters with an intermediately arranged optical element (including but not limited to a dichroic filter). Curved or faceted optical elements, and curved or faceted reflectors, may be employed. Multiple solid state emitters may be arranged in multiple reflector cups or recesses. Characteristics of optical elements and/or lumiphor elements of such devices may be varied with respect to angular position.

Abstract: A lighting apparatus is provided with a housing having an upper assembly, a lower assembly, and a middle assembly. A lighting module is positioned within the housing in which the lighting module includes at least one light emitting diode (LED). A reflector is positioned within an outer lens of the middle portion of the housing above the lighting module. A reflector plate is positioned within the housing at approximately the same level or below the lighting module. The reflector plate is configured to reflect light emitted by the at least one LED after the light is reflected by the reflector. The outer lens is configured to refract light emitted by the at least one LED after the light has been reflected by the reflector.