Abstract: A plurality of lamp arrays (30A-30N) provide uniform lighting across the copy area of a billboard sign. The arrays (30) are arranged end-to-end horizontally along the length of the copy area. Each array (30) comprises a plurality of LEDs (34A-34N) and a plurality of lenses (36A-36M). The various lenses (36) direct and focus the light from the LEDs (34) at the various parts of the copy area so as to minimize dark and light spots. A “TOP” set of LEDs preferably illuminates the top part of the copy area, a “MIDDLE” set of LEDs preferably illuminates the middle of the copy area, and “FILLER” LEDs preferably serve to illuminate the bottom of the copy area. The lamp arrays are preferably mounted to a catwalk (14) at the bottom of the billboard.

Abstract: A light source apparatus is disclosed which allows effective cooling of an arc tube even with a small amount of wind. The light source apparatus has a light emitter and a reflector which reflects light from the light emitter and causes the reflected light to emerge. The light source apparatus also has a wind-guiding member which has a flow inlet and a flow outlet of cooling wind and has a wall portion at a position opposite to the flow inlet, the wall portion guiding the cooling wind toward the light emitter in the reflector. The light source apparatus which has a reflector to which an arc tube is fixed via a connecting member, and has a first flow path on which cooling wind from a fan flows to cool an area of the arc tube closer to the connecting member, and a second flow path on which cooling wind from the fan flows to cool an area of the arc tube closer to a light emitting portion. The second flow path is formed separately from the first flow path.

Abstract: A headlamp, developed especially for motor vehicle illumination, wherein the light source and reflector surfaces are fully concealed from the oncoming traffic users, having a light plane with fully adjusted height, operating according to the half-lens illumination principle, providing a long-distance illumination without glaring effect by preventing the all of the light rays generated at the light source from reaching to the eye level (EE) of oncoming traffic users. The preferred embodiment of the system (40, 50) consists of three independent reflector units (2, 3), (12, 13), (22, 23) with triple light pathway, designed similar to clover leaf, having a standard light source (1) located at their common first focal point (f1) mounted in a headlamp enclosure (20). The system consists of a lighting assembly that can be used not only in motor vehicle headlamp system but also in general lighting systems and in all optical devices. The system may be applied as an in-bulb structure.

Abstract: A lighting device is disclosed. The lighting device can be compact and can have a major surface configured to be attached to a substantially flat mounting surface. Within the lighting device, a light bar frame can be rotatable relative to a mounting plate around an axis substantially perpendicular to the major surface. Three or more rotatable light bars can be positioned within the light bar frame. The light bars can include lighting elements (e.g., light-emitting diodes) and can be positioned within the light bar frame such that their rotational axes are coplanar. The rotational axes of the light bars also can be substantially perpendicular to the axis around which the light bar frame rotates relative to the mounting plate. Furthermore, the rotational axes of the light bars can form three or more sides of a polygon (e.g. a triangle).

Abstract: A substrate for an LED assembly can have a plurality of cups formed therein. At least one cup can be formed within another cup. The cups can be co-axial with respect to one another, for example. A machined surface of the substrate can enhance reflectivity of the LED assembly. A transparent and/or non-global solder mask can enhance reflectivity of the LED assembly. A transparent ring can enhance reflectivity of the LED assembly. By enhancing reflectivity of the LED assembly, the brightness of the LED assembly can be increased. Brighter LED assemblies can be used in applications such as flashlights, displays, and general illumination.

Abstract: A desired color of illumination of a subject is achieved by determining settings for color inputs and applying those setting to one or more systems that generate and mix colors of light, so as to provide combined light of the desired character. In the examples of appropriate systems, an optical integrating cavity diffusely reflects light of three or more colors, and combined light emerging from an aperture of the cavity illuminates the subject. System settings for amounts of the different colors of the input lights are easily recorded for reuse or for transfer and use in other systems.

Abstract: An assembly for providing illumination to a selected incident area includes a support; a first illumination device coupled to the support, the first illumination device including a first light emitting device and a first lens positioned for focusing light emitted by said first light emitting device; a second illumination device coupled to the support, the second illumination device including a second light emitting device and a second lens positioned for focusing light emitted by said second light emitting device; the first and second lenses projecting defocused images of the respective first and second light emitting devices to the selected incident area.

Abstract: A spa speaker mounting and illumination receptacle includes a light transmitting circular flange and a circular light transmitting sidewall perpendicularly disposed to and supporting the flange, the sidewall including at least a first lamp receptacle and at least a first tapered portion, the first lamp receptacle being disposed to direct illumination from a lamp disposed therein into said first tapered portion, the first tapered portion being tapered to enhance the uniformity of distribution of illumination around the flange.

Abstract: An optoelectronic semiconductor component includes a light-emitting chip for emitting light, and a reflective substrate. A plurality of linear indent structures is formed on the reflective substrate. The light-emitting chip is installed on the reflective substrate and located on a side of the plurality of linear indent structures. The plurality of linear indent structures is capable of reflecting the light emitted from the light-emitting chip.

Abstract: A solid state light module incorporating light emitting diodes (LEDs) disposed on a metal substrate, a solid state lighting system employing such modules, and method of replacing LEDs of the light modules are provided. The metal substrate may allow for lower LED junction temperature and, hence, a longer device lifetime. In addition, the metal substrate may allow for the potential omission of a heat sink, which may reduce light module size, when compared to conventional solid state light emitters.

Abstract: A remote control includes at least one spring motion switch and an electrical circuit to control remote control functions when the remote control is moved. In one embodiment, the motion switch activates keyboard back-lighting. A single spring motion switch may be used or two spring motion switches may be positioned approximately orthogonally, for example, a first spring motion switch to activate on motion along the remote control's length L, and a second spring motion switch to activate on motion along the remote control's width W. One simple and inexpensive motion switch is a cantilevered spring. The remote control according to the present invention with back-lighting activated by remote control motion is particularly useful when viewing a video or listening to music in low light.

Abstract: A lighting device in the form of a handheld flashlight is provided that includes a plurality of light sources located within a swivel head pivotally connected to a main body. The main body has a yoke portion connected to the swivel head by a head attachment mechanism that includes locking detents to lock the swivel head into one of a plurality of positions. The lighting device also has a tail cap that engages the main body by way of a cam lock wheel to provide a closure to the battery compartment. The lighting device further includes multiple modes of operation having a plurality of switches that provide control in various lighting modes. The lighting device is configured to be powered by one number of batteries supplying a first voltage output and is configured to be powered by a second different number of batteries supplying a second different voltage output, and the batteries are installed in battery compartments and include spring biased contacts for ensuring proper orientation of the batteries.

Abstract: A power tool includes a motor, a lighting power source, and a housing assembly defining an axis that supports the motor and the lighting power source. The power tool also includes a lighting assembly with a light and an energy line that transmits energy to the light to thereby provide illumination. The light and the lighting power source are disposed in spaced relationship from each other relative to the axis. Furthermore, the power tool includes a light holder supported by the housing assembly. The light holder supports the light and a portion of the energy line such that an end of the energy line unsupportedly extends beyond the light holder and electrically couples to the lighting power source.

Abstract: Provided are a reflection sheet for a backlight unit including: a base sheet; and a flexible coating layer, formed on at least a surface of the base sheet, containing at least one flexible elastomeric bead selected from the group consisting of an elastomeric acrylic bead, an elastomeric nylon bead, and a microcapsule resin bead having a core charged with an air or an organic material, and a backlight unit for a liquid crystal display employing the reflection sheet. The reflection sheet may further include a metal reflection layer. The reflection sheet including the flexible coating layer exhibits excellent resistance to friction and impact. The reflection sheet including both the flexible coating layer and the metal reflection layer is excellent in specular reflectivity and brightness as well as in resistance to friction and impact.

Abstract: An adjustable lighting device includes a light source, a reflector for reflecting light from the light source, a coil of nonlinear thread coiling around the reflector, and a driving member engaging with the coil of nonlinear thread. The driving member is adapted to drive the coil of nonlinear thread to rotate thereby adjusting the position of the reflector.

Abstract: A holiday lights device for use on a building during the holiday season is provided. The holiday lights device comprises an elongated bracket railing having a first end, a second end, a front surface, and a rear surface. A securing mechanism secures the bracket railing to the building. A first latch is secured to the front surface of the bracket railing with the first latch having a first opening and a second latch is secured to the front surface of the bracket railing and spaced from the first latch with the second latch having a second opening. A light railing is provided having a first end, a second end, a front surface, and a rear surface. A first slider bracket is pivotally secured to the rear surface of the light railing and a second slider bracket pivotally secured to the rear surface of the light railing and spaced from the first slider bracket.

Abstract: An illumination source includes at least one light emitting diode, e.g., in array of LEDs that produce short wavelength light. One or more wavelength converting elements, such as phosphor elements, convert at least a portion of the short wavelength light from the LED(s) to longer wavelengths, such as Red and Green. A dichroic element positioned between the LED(s) and the wavelength converting element(s) transmits the light from the LED(s) and reflects the longer wavelengths from the wavelength converting element(s). A color selection panel selects the colors of light to be produced by the illumination device and to be recycled for another opportunity to be converted by the wavelength converting element(s) or to be reflected by the dichroic element. The color selection panel may operate in one or both of the spatial domain and the temporal domain.

Abstract: An illuminating device (1) includes a light source module (10) and a power source module (30). The light source module includes a base (11), a plurality of LEDs (12) and a plurality of electrode contacts (13, 14) located on the base. The LEDs is electrically connected to the electrode contacts. The power source module includes an enclosure (31) defining a light source chamber (311) therein and a plurality of electrical terminals (33, 34) received in the light source chamber. The light source module is detachably inserted into the light source chamber of the power source module, and the electrode contacts abut against the corresponding electrical terminals respectively.

Abstract: An LED illumination device includes an optical section at a front end thereof, an electrical section at a rear end thereof, and a heat dissipation section between the optical section and the electrical section. The optical section includes a plurality of LEDs electrically connecting with the electrical section, and a light output housing around the LEDs. The heat dissipation section includes a plurality of L-shaped heat pipes, a heat sink and a mounting seat. Each of the heat pipes includes an evaporation section and a condensation section substantially perpendicular thereto. The condensation sections of the heat pipes are received in the heat sink. The mounting seat attaches to the evaporation sections of the heat pipes. The LEDs thermally connect with evaporation sections via the mounting seat.

Abstract: A planar illumination device is provided that can achieve even distributions of mixed colors and luminance, downsizing and weight saving without lowering the luminous efficiency of LED chips. In addition, a liquid crystal display device using the planar illumination device as a backlight is provided. A polygonal flat plate-like light guide plate GLB is combined with a plurality of LED chips D1, D2, D3 emitting light with different colors from each other to constitute a color mixing unit DUT. A plurality of the color mixing units are arranged on printed circuit boards RFB having a reflection function to constitute a planar illumination device. The planer illumination device is installed on the back of a liquid crystal display panel, thus constituting a liquid crystal display device.