Abstract: The present subject matter is directed to a system and method for producing a batwing light distribution. A lens is illuminated with a light source, preferably an LED, and the lens is configured to internally reflect a portion of the illuminating light back in a direction generally opposite to the initial illumination direction. Another portion of the light from the light source may pass through other lens surfaces but may also be reflected back past the light source with a reflector positioned on the other side of the lens from the light source. The light source may be mounted on a frame so as to obscure light therefrom from view.

Abstract: Embodiments of a lighting apparatus with a light source using one or more light emitting diodes (LEDs) to generate light. In one embodiment, the lighting apparatus comprises a light diffusing assembly that generates an optical intensity profile consistent with incandescent lamps. The light diffusing assembly comprises an envelope and a reflector element having frusto-conical member and an aperture element disposed therein. The lighting apparatus can also comprise a heat dissipating assembly with a plurality of heat dissipating elements disposed radially about the envelope. In one example, the heat dissipating elements are spaced apart from the envelope to promote convective heat dissipation.

Abstract: An optical element for a lamp or lighting apparatus having at least one light emitting diode (LED) as a light source is provided. The optical element is positioned proximate to the LED and receives light rays therefrom. In turn, the optical element distributes the substantially unidirectional light output from the LED into an omnidirectional output with a controlled variance in light intensity at different directions about the LED. A diffuser can also be used around the optical element and LED to provide further distribution of the light rays by e.g., light scattering.

Abstract: Embodiments of a lighting apparatus with a light source using one or more light emitting diodes (LEDs) to generate light. In one embodiment, the lighting apparatus comprises a light diffusing assembly that generates an optical intensity profile consistent with incandescent lamps. The light diffusing assembly comprises an envelope and a reflector element having frusto-conical member and an aperture element disposed therein. The lighting apparatus can also comprise a heat dissipating assembly with a plurality of heat dissipating elements disposed annularly about the envelope. In one example, the heat dissipating elements are spaced apart from the envelope to promote convective heat dissipation.

Abstract: Embodiments of a reflector and a lamp that utilizes the reflector and light-emitting diode (LED) devices to generate an optical intensity distribution substantially similar to that of a conventional incandescent light bulb. The lamp can include a heat dissipating assembly with one or more heat dissipating elements disposed annularly about the envelope and spaced apart from the envelope in order to promote convective airflow. In one embodiment, the reflector operates as a total internal reflection (TIR) lens.

Abstract: Methods are provided for forming a reflective coating by applying a precursor material onto the substrate; soft curing the precursor material at a first curing energy level; and thereafter, hard curing the precursor material at a second curing energy level having a higher amount of energy than the first curing energy level to form the reflective coating. Other methods are provided for forming a reflective coating a surface of a plastic substrate by heating the surface of the plastic substrate to a deposition temperature, applying a polymeric resin onto the heated surface, and crosslinking the polymeric resin to form the reflective coating. The polymeric resin can include a cross-linkable powder, a cross-linker, and a pigment, with the deposition temperature being about 10° C. or greater than the melting point of the cross-linkable binder. Lighting apparatus formed from such methods are also provided.

Abstract: Embodiments of a lamp are described that use light emitting diodes (LEDs) to generate an intensity distribution that is consistent with incandescent lamps. In one embodiment, the lamp comprises a diffuser having a spheroid geometry with a light reflective upper portion and a light transmissive lower portion. The lamp also includes a thermal management system with a plurality of optically active heat dissipating elements disposed annularly about the diffuser. In one example, the heat dissipating elements are spaced apart from the diffuser to promote convective heat dissipation.

Abstract: Embodiments of a lighting apparatus with a light source using one or more light emitting diodes (LEDs) to generate light. In one embodiment, the lighting apparatus comprises a light diffusing assembly that generates an optical intensity profile consistent with incandescent lamps. The light diffusing assembly comprises an envelope and a reflector element having frusto-conical member and an aperture element disposed therein. The lighting apparatus can also comprise a heat dissipating assembly with a plurality of heat dissipating elements disposed annularly about the envelope. In one example, the heat dissipating elements are spaced apart from the envelope to promote convective heat dissipation.

Abstract: A light pipe having substantially uniform brightness along a length thereof is disclosed. The light pipe includes a first end for receiving a plurality of light rays, a reflective portion for directing the received light rays in a pre-determined internal light pattern, wherein the reflective portion includes a plurality of reflective elements, and an emitting portion for emitting the light rays in a pre-determined light distribution pattern.

Abstract: A lighting system and a method for providing a lighting pattern are disclosed, wherein the lighting system and method minimize non-uniform color and intensity in the lighting pattern, offers unique styling features, and provides design flexibility for the LED package and associated heatsinking devices. The lighting system including a light source, a first light bending device disposed adjacent the light source and adapted to receive light rays emitted from the light source and direct the light rays in a first desired lighting pattern, and a second light bending device disposed around the first light bending device, wherein the optical device is adapted to receive the directed light rays from the first light bending device and direct the light rays in a second desired lighting pattern.

Abstract: A lens has a main body for use with at least one light source. The main body has a light-emitting face, a light-collecting face disposed opposite the light-emitting face, and a plurality of focal points, the latter of which form a focal ring. A central axis extends through the light-collecting face and the light-emitting face. The main body is substantially radially symmetrical about the central axis and the focal ring extends around the central axis of the main body of the lens.

Abstract: A light pipe having substantially uniform brightness along a length thereof is disclosed. The light pipe includes a first end for receiving a plurality of light rays, a reflective portion for directing the received light rays in a pre-determined internal light pattern, wherein the reflective portion includes a plurality of reflective elements, and an emitting portion for emitting the light rays in a pre-determined light distribution pattern.

Abstract: An LED headlamp is disclosed, wherein the headlamp is a replacement for a seven inch headlamp. The headlamp includes a housing adapted to replace any conventional seven inch round headlamp, a first light source adapted to be coupled to a source of electrical energy, a second light source adapted to be coupled to a source of electrical energy, a first optical system disposed adjacent the first light source, wherein the first optical system is adapted to provide a low beam lighting pattern, a second optical system disposed adjacent the second light source, wherein the second optical system is adapted to provide a high beam lighting pattern, and a cover lens coupled to the housing for enclosing the first light source, the second light source, the first optical system, and the second optical system within the housing.

Abstract: A lens for use with a light emitting source is provided. The lens has a main body with a light-collecting face and a light-emitting face and which defines an optical axis extending through the centers of these two faces. A pocket for receiving light from the light source is defined in the light-collecting face by an inner axially-facing surface surrounded by an inner radially-facing surface. The inner axially-facing surface is concave and has a spherical shape. The inner radially-facing surface has a non-spherical, tapered shape and extends between the axially-facing surface and an open end of the pocket. A light assembly incorporating the lens includes a light-emitting diode.

Abstract: A light assembly and reflector are provided for redirecting light from a light source in a motor vehicle. The reflector generally includes a first parabolic trough, a second parabolic trough, and third trough. The first and second parabolic troughs define first and second trough axes. The third trough has a third trough axis. The first and second parabolic troughs are positioned on opposing sides of the third trough, and the first and second trough axes are angled relative to the third trough axis. In this manner, the reflector collects and reflects a sufficient amount of light while providing control over the beam pattern spread, particularly in the horizontal direction, whereby a single LED may be employed such that constraints imposed by heat dissipation are significantly reduced.

Abstract: An LED headlamp is disclosed, wherein the headlamp is a replacement for a seven inch headlamp. The headlamp includes a housing adapted to replace any conventional seven inch round headlamp, a first light source adapted to be coupled to a source of electrical energy, a second light source adapted to be coupled to a source of electrical energy, a first optical system disposed adjacent the first light source, wherein the first optical system is adapted to provide a low beam lighting pattern, a second optical system disposed adjacent the second light source, wherein the second optical system is adapted to provide a high beam lighting pattern, and a cover lens coupled to the housing for enclosing the first light source, the second light source, the first optical system, and the second optical system within the housing.

Abstract: A trough reflector for a lighting system is disclosed, wherein the trough reflector produces a lighting pattern having a stepped horizontal cut-off, maximizes collection efficiency, and minimizes undesirable beam patterns. The trough reflector includes a reflective surface having a substantially parabolic curvature for directing light, wherein the reflective surface is split into a first portion and a second portion. The second portion offset relative to the first portion of the trough reflector. The trough reflector further includes a plurality of reflective side walls disposed adjacent the reflective surface, wherein the reflective side walls cooperate with the reflective surface to direct light rays to form a desired lighting pattern.

Abstract: A lighting system and a method for providing a lighting pattern are disclosed, wherein the lighting system and method minimize non-uniform color and intensity in the lighting pattern, offers unique styling features, and provides design flexibility for the LED package and associated heatsinking devices. The lighting system including a light source, a first light bending device disposed adjacent the light source and adapted to receive light rays emitted from the light source and direct the light rays in a first desired lighting pattern, and a second light bending device disposed around the first light bending device, wherein the optical device is adapted to receive the directed light rays from the first light bending device and direct the light rays in a second desired lighting pattern.