Abstract: A lighting apparatus for use as a surgical headlamp is disclosed. A light emitting diode is positioned in a recess within a frustoconical, thermally-conductive heat sink that has a several circumferential ridges to provide a desired surface area for heat transfer. The diode and the heat sink are provided in a housing that also includes a fan for drawing ambient air into the housing to contact the heat sink and exhausting heated air. A lens is snap-fit into a slide that frictionally engages the interior of the housing, allowing a user to adjust the spacing between the light emitting diode and the lens as desired. Personal cooling apparatuses usable with the lighting apparatus are also described. Auxiliary undergown switches are also described as are personal cooling apparatuses.

Abstract: A light pipe assembly including an interior panel of a vehicle and a light pipe. The interior panel includes a channel integrally formed within the interior panel, where the channel has an engagement face, and a plurality of integrated retaining hooks are arranged along the channel. The plurality of integrated retaining hooks are spaced apart from one another and extend over the channel such that an engagement face of the plurality of integrated retaining hooks is arranged opposite the engagement face of the channel. The light pipe is arranged within the channel, where the light pipe is in direct contact with the engagement face of the plurality of integrated retaining hooks and the engagement face of the channel.

Abstract: The present disclosure relates to an asymmetric diffusion lens for a backlight unit, which includes a diffusion part of which an upper surface has an elliptical shape having a major axis and a minor axis, and a lower surface has a circular shape, a concave accommodation part provided at a center of the lower surface of the diffusion part to provide a space in which an LED package is accommodated, an incidence surface which is a boundary surface between the concave accommodation part and the diffusion part, and an exit surface as side surfaces and the upper surface of the diffusion part.

Abstract: A control apparatus according to an embodiment of the present invention includes a controller. The controller that switches between a first control mode for executing lighting control intended for a marker lamp of a railway vehicle and a second control mode for executing lighting control intended for the marker lamp and a display unit disposed in vicinity of the marker lamp in a manner that depends on a travelling state of the railway vehicle.

Abstract: A light-emitting device includes a wavelength conversion member including, in a dispersed manner, a first phosphor, a second phosphor, a third phosphor, a fourth phosphor, and a fifth phosphor, and a light emitter. The first phosphor has a peak in a wavelength region of 400 to 500 nm, the second phosphor in 450 to 550 nm, the third phosphor in 500 to 600 nm, the fourth phosphor in 600 to 700 nm, and a fifth phosphor in 680 to 800 nm. The light emitter emits light in an ultraviolet region of 380 to 430 nm. The light-emitting device has an emission spectrum in a region of 380 to 950 nm including peaks in regions of 380 to 430 nm, 430 to 480 nm, 480 to 550 nm, 550 to 650 nm, and 650 to 750 nm, and differences between relative light intensities at the peaks are less than 20%.

Abstract: An illuminating device can comprise two substrates each having two surfaces, one of each can be configured to mount solid-state lighting devices wherein the two substrates are separated by a defined gap. The two substrates are electrically and mechanically connected and can support or be supported with an enclosure such as an optic. This configuration provides thermal decoupling and uniform illumination when assembled as per the embodiments explained.

Abstract: A lighting assembly including a shell, wherein the shell includes an inner wall defining an inner lumen, an outer wall encircling the inner wall, a set of radial fins connecting the inner and outer walls, the set of fins cooperatively defining a set of cooling channels between adjacent fins, the inner wall, and the outer wall; an insert removably mounted within the inner lumen, the insert defining a power storage lumen; a power storage unit arranged within the power storage lumen; a circuit board coupled to the power storage unit, the circuit board comprising a processor and communication module; a lighting module electrically connected to the circuit board, wherein the lighting module includes a substrate and a set of light emitting elements mounted to a first broad face of the substrate.

Abstract: A portable light may comprise: a light body having an illumination, e.g., white, light source and one or more laser light sources, each light source being selectively energizable for producing light; and a switch for selectively energizing the illumination light source and/or the laser light sources. The one or more laser light sources provide diverging narrow beams of laser light, so as to appear as spaced apart dots or spots of laser light on objects illuminated by the beams of laser light. Because the laser light beams diverge, the distance between the dots is proportional to the distance to the object which the dots illuminate. A TIR optical element may also be disposed in front of the illumination light source for receiving the light produced thereby.

Abstract: Emissive display devices having LED sources with super-lambertian radiation patterns. An exemplary emission source may have a half-emission-cone-angle of less than 40°. A system, such as an augmented reality display system, employing such an emissive display device may display a reduction in power of up to three times relative to LED sources with a lambertian radiation pattern. In some systems, such as augmented reality display systems, the optical path down stream of such an emissive display device may be simplified and/or dimensionally scaled, and/or manufactured to lower tolerances. For example, a discrete collimating lens may be eliminated from the optical path of such an emissive display device.

Abstract: Provided is a lighting control device capable of reducing the lighting delay when a light source is turned on/off in accordance with the bank angle of a vehicle. The lighting control device which controls the lighting state of the light source sets the time period required for turning on the light source to be shorter as the vehicle speed is higher when the inclination angle of a vehicle body in the vehicle width direction is larger than a reference value, and causes the light source to be fully turned on over the set time period. The lighting control device also sets the time period required for turning off the light source to be shorter as the vehicle speed is higher when the inclination angle of a vehicle body is smaller than a reference value, and causes the light source to be dimmed and turned off over the set time period.

Abstract: The present invention relates to a vehicle headlight that ensures maintaining usage efficiency of a light of the vehicle headlight while improving visibility of an irradiation target on a road by a headlight light from a host vehicle. A vehicle headlight 1 having a headlight unit 4 forming a light distribution pattern by projecting a light B1 from a light source 9 ahead includes a polarized light generator 8, a first headlight unit 5, and a second type headlight unit 6. The polarized light generator 8 generates a first and a second polarized lights (B11, B12) by the light B1 from the light source 9. The first headlight unit 5 indicates main light distribution patterns (La1, Lb1) by a first polarized light B11 ahead. The second type headlight unit 6 scans with a second polarized light B12 using a scanning mechanism 13, and indicates ahead auxiliary light distribution patterns (La2, Lb2) irradiating a range narrower than the main light distribution patterns (La1, Lb1).

Abstract: An illumination assembly including a light pipe and a light supply for use in illuminating shelf dividers on a shelf. The light pipe includes a first end portion including a light inlet, a second end portion including a light outlet, and a body portion extending between the first and second end portions. The light supply directs light into the light inlet, whereby at least a portion of the light subsequently exits the light pipe through the light outlet. When the first end portion is positioned adjacent a rear edge of the shelf, the body portion extends from the rear edge to a front edge of the shelf. The light pipe is configured to transmit at least a portion of the light emitted by the light supply from the light inlet to the light outlet to illuminate an area adjacent the shelf front edge.

Abstract: A backlight module, a display device and a driving method are disclosed. The backlight module includes a first light guide plate and a second light guide plate arranged oppositely, a first light source and a second light source. A surface of the first light guide plate facing the second light guide plate is a light exit surface of the first light guide plate. The first light source is arranged at a light entrance surface of the first light guide plate. The second light source is arranged at a light entrance surface of the second light guide plate. The first light guide plate includes a light guide element guiding light along a direction perpendicular to the light exit surface of the first light guide plate. The second light guide plate includes a scattering element.

Abstract: A light guide assembly for a vehicle headlamp is provided. The light guide assembly generally includes a light guide, a retainer defining an elongated channel for the light guide, and a carrier within the retainer and partially surrounding the light guide. The carrier is a standalone component in some embodiments, while in other embodiments the carrier is a layer or a coating on the retainer. The carrier is substantially black and is visible on either side of the light guide to mask a break in the carrier, the break providing an opening for the light guide to enter the headlamp housing. The light guide assembly thereby achieves a consistently-dark border on either side of the light guide along its entire length, even in the location of the housing opening.

Abstract: Systems, apparatus, and methods related to recreational balls with patterned illuminated surfaces are described herein. In some embodiments, an apparatus includes an air-tight object having an outer layer and an inner layer. The opacity of the outer layer is greater than the opacity of the inner layer. The outer layer defines an aperture. Additionally, a light module is configured to send light from an interior of the air-tight object through the aperture of the outer layer.

Abstract: A light emitting device includes a plurality of leads and a board having a first surface on a first surface side thereof and a second surface on a second surface side thereof, the second surface being an opposite side to the first surface. Light emitting elements are mounted on a first surface of a board. A wavelength conversion member is formed unitarily with a transparent member and covers the light emitting elements. The wavelength conversion member has a first end and a second end. The wavelength conversion member is disposed at a first surface side and a second surface side and is elongated in a longitudinal direction when viewed in a plan view of the first surface side of the board. A first metal plate protrudes at the first end of the wavelength conversion member. A second metal plate protrudes at the second end of the wavelength conversion member.

Abstract: An illuminated steering wheel cover assembly includes a cover that is removably positioned on a steering wheel. The cover has a circular shape to match a circular shape of the steering wheel. A plurality of light emitters is mounted in the cover. The light emitters emit light outwardly from the cover when turned on. Each of the light emitters comprising an LED capable of emitting multiples colors. A control circuit is electrically coupled to each of the light emitters. An actuator is electrically coupled to the control circuit and is actuated to turn the light emitters on or off.

Abstract: An optical system includes an optic and a reflector. The optic has a rear surface with a cavity configured to receive light from a light source and a front surface opposite the rear surface, the front surface configured to emit light processed by the optic and the front surface including a centrally disposed convex region. The front surface and the rear surface of the optic meet at a rim that extends peripherally with respect to the cavity. The reflector is disposed adjacent the optic and comprises a light-receiving end adjoining the rim, a light-emitting end, and a tapered region that extends between the light-receiving end and the light-emitting end.

Abstract: An illumination assembly including a light pipe and a light supply for use in illuminating shelf dividers on a shelf. The light pipe includes a first end portion including a light inlet, a second end portion including a light outlet, and a body portion extending between the first and second end portions. The light supply directs light into the light inlet, whereby at least a portion of the light subsequently exits the light pipe through the light outlet. When the first end portion is positioned adjacent a rear edge of the shelf, the body portion extends from the rear edge to a front edge of the shelf. The light pipe is configured to transmit at least a portion of the light emitted by the light supply from the light inlet to the light outlet to illuminate an area adjacent the shelf front edge.

Abstract: A mount for an LED lighting assembly includes a length adjusting shaft having releasable engagement features that allow the length to be adjusted to a desired length, but also the be released and readjusted as needed. The length adjusting shaft can include an external release disposed outside the housing of the LED lighting assembly that is coupled to the releasable engagement and is configured to release the releasable engagement from the adjustment features through a housing of the LED lighting assembly.