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Match Document Document Title
7621677 Optical coupler for a light emitting device with enhanced output brightness  
A light source is described where the light emitted by a solid-state light emitting device such as an LED is coupled into an optical waveguide such as an optical fiber. A highly reflective coupler...
7618176 Solid state light source adapted for remote illumination  
A lighting device having a light source, light pipe, and a light-dispensing element is disclosed. The light source emits light at a first wavelength and transmits that light to the light pipe. The...
7618175 LED lighting system with helical fiber filament  
A lighting system includes a housing, a light-transmitting top member positioned across an open top of the housing, a light source positioned in the housing, a helical fiber biased between the...
7618147 Efficient illumination for display systems and in methods for displaying  
A display system ( 100, 200, 300, 350, 400, 450 ) for displaying an image is described. The display system ( 100, 200, 300, 350, 400, 450 ) typically comprises one or a plurality of individual...
7614778 Backlight unit and driving method thereof, and liquid crystal display device having the backlight unit  
A liquid crystal display device, backlight unit, and method of driving a backlight unit are provided. The backlight includes a lamp and an inverter that is operative to supply a driving voltage to...
7614774 LED and LED-applied backlight module  
A light emitting diode includes two lead-frames, one or a plurality of light emitting chip, a casing, and a packaging colloid; the casing comprised of two pairs of a first and a second side units...
7611273 Point light source, light-emitting module and display device having the same  
A point light source includes a body, a light-emitting unit and a fluorescent unit. The body includes a bottom portion and a protrusion portion protruded from the bottom portion. The light-emitting...
7611272 Light unit for high-beam and low-beam generation  
The invention concerns a light unit with at least one LED, including at least one light-emitting chip as light source, with primary optics that include at least one fiber-optic element, optically...
7611271 Efficient light injector  
A light injector includes a tapered solid light guide having a light input end, an opposing light output end, and a total internal reflection surface defining a longitudinal outer surface there...
7607814 Backlight with symmetric wedge shaped light guide input portion with specular reflective surfaces  
A backlight includes a visible light transmissive body having a light guide portion and a light input portion. The visible light transmissive body primarily propagates light by TIR and includes a...
7600907 LED lighting device  
An LED lighting device includes a light pipe and a support portion. The light pipe includes a light emitting diode module inside and two first fastening portions on an outer wall thereof. A support...
7600906 Illumination structure comprising a flexible light guide coupled with a light source  
Embodiments of an illumination structure are provided. The illumination structure has a flexible light guide with an improved light coupling to a light source. According to one embodiment, the...
7600905 Light unit and exterior mirror with a light unit  
The invention relates to a vehicle light unit with one or several lamps, in which light can be guided in a light conductor material, in particular a flashing direction indicator light unit. At...
7592754 Method and apparatus for driving a light emitting diode  
An LED drive circuit includes a current source configured to electrically drive an LED. In one configuration, the current source forms part of an integrated circuit that requires a relatively small...
7591575 Light emitting device  
The present invention provides a light emitting device comprising: an excitation light source which radiates excitation light; a wavelength converting member which absorbs and converts the...
7591574 Optical element for variable message signs  
An optical element for variable message signs includes an oblong housing, in which at least one light source as well as at least first and second lenses are arranged successively in the...
7591568 Point light source, backlight assembly having the same and display apparatus having the same  
A point light source includes a light-emitting element, an optical lens, and at least two reflective members. The light-emitting element emits a point light. The optical lens is disposed over the...
7591559 Image projector and a light source for use in the projector  
A light source comprising a prismoidal housing with inclined sides of a flight of steps and with a closed smaller base and an open larger base. The entire inner surface of the housing is made of an...
7588360 LED lighting equipment and heat radiating structure  
The present invention relates generally to an LED lighting equipment and heat radiating structure, which primarily consists of a lamp holder/bracket and a heat conduction base, wherein, the lamp...
7588359 LED lamp with direct optical coupling in axial arrangement  
An LED light source ( 10 ) comprises a heat sink ( 12 ) having a body ( 14 ) with a front surface ( 16 ) and a rear surface ( 18 ), the rear surface ( 18 ) being provided with heat dissipaters ( 20...
7586126 Light emitting diode lighting module with improved heat dissipation structure  
A light emitting diode (LED) lighting module with an improved heat dissipative structure comprises a plurality of the LEDs and a heat pipe apparatus on which at least a circuit layer is provided....
7585089 Light engine  
A light engine ( 10 ) has a light engine subassembly ( 12 ) comprising: a housing ( 14 ) having a longitudinal axis ( 16 ), a tubular portion ( 18 ) with a surrounding wall ( 20 ) and a closed end...
7581862 Light guide element and light unit with light guide element  
The invention concerns a light guide element whose cross-sectional surface widens continuously at least in areas from a light inlet surface to a light outlet surface, as well as a light unit with...
7579198 Method for making backlight module  
An exemplary method for making a backlight module, the method includes steps in following order: providing a transparent base sheet and at least one light emitting diode; punching the base sheet to...
7572654 Method for making light emitting diode  
An exemplary light emitting diode ( 30 ) includes a light output unit ( 31 ), an optical lens ( 33 ) and a reflective film ( 35 ). The optical lens includes a light input surface ( 331 ) facing the...
7568806 Light source unit having a light source in a mirror tunnel  
A light source unit includes a mirror tunnel which has a prism-like shape and whose external sides are formed to taper, and a light source which includes a light emitting device and which is...
7566157 Fiber optics illuminated glow stick  
The present invention provides a fiber optics illuminated glow stick apparatus comprising at least one multicolored LED, an optics cable in proximity to the multicolored LED that illuminates when...
7563009 Headlamp with beam patterns formed from semiconductor light sources  
The headlamp system of the present invention includes a source array of semiconductor light sources and a lens system to produce a first component, such as spread light, of desired beam patterns...
7560745 LED package and backlight assembly for LCD comprising the same  
The LED package includes a substrate, one LED or more separated from each other by designated intervals and arranged in a line on the substrate, and a molding portion, for sealing the upper surface...
7556413 Illumination device and projector  
An illumination device includes a light source that emits light-source light, a light recovery member that is disposed close to the light source in the vicinity of a lateral side of the light...
7556412 Fiber optic auxiliary lighting system  
A lighting device is provided that includes a housing containing a light emitting portion of a light emitting diode and a terminus of a fiber optic bundle such that light emission from the light...
7556404 Light source device with equalized colors split, and method of making same  
A light source device includes a light emitting diode (LED) device, a lens and a light diffusing layer. The LED device includes an LED chip, which emits light, and a fluorescent, which converts a...
7555194 Illumination device and image scanning device  
An improved illumination device shortens a redundant area of insufficient light intensity close to a longitudinal end thereof. The device includes a casing, a bar-shaped light guide housed in the...
7554625 Display device and backlight device having plural solid-state emitting element units each emitting at least three colors and contained within a cylindrical air-filled light guide body also surrounded by air  
A backlight device, which uses solid-state light emitting elements capable of emitting lights of three colors, consisting of red, green and blue, can exhibit an enhanced light utilizing efficiency,...
7549783 Efficient luminaire with directional side-light extraction  
Luminaire with directional side-light extraction comprises a light pipe with a light-carrying core, and with a light-extraction structure along a first longitudinal side of the luminaire, confined...
7549782 Semiconductor light source configured as a light tube  
A tubular light source having a semiconductor light source and a tube is disclosed. The tube includes a transparent medium, the tube having a side tube surface, a center curve, one end surface, a...
7549781 Light emitting diode and lens for the same  
A light emitting diode includes a lens, a chip base attached to a bottom of the lens, and an LED chip attached in the chip base to be concentric with the lens. The lens includes a bottom, an outer...
7548672 Fiber-based light source device  
The present invention provides a fiber-based light source device, which includes a plurality of first, second or third light-emitting devices for respectively emitting a plurality of first, second...
7548157 Battery backed service indicator aids for field maintenance  
A self-contained backup power source such as a battery is provided for components within an electrically powered device such as a storage controller, photocopier or the like, to maintain diagnostic...
7547115 Package structure for light emitting diode and applications of the same  
A light emitting diode (LED) package structure. In one embodiment, the LED package structure includes at least three lenses, each lens having a body portion with at least a first surface, a second...
7547114 Multicolor illumination device using moving plate with wavelength conversion materials  
A multicolor illumination device using an excitation light source and a multi-segmented moving plate with wavelength conversion materials (e.g. phosphors) is disclosed. The exciting light source is...
7543952 Lighting fixture for aquarium  
A lighting fixture for use with an aquarium includes a lamp holder holding a lamp tube, a shade made of a light guide material and provided above the lamp tube, the shade having a seat at the rear...
7540645 Solid-state light source  
A solid-state light source includes a semiconductor light source for emitting light and an optical system having a fiber optic element. The fiber optic element has an input for receiving emitted...
7540616 Polarized, multicolor LED-based illumination source  
Light emitting diodes (LEDs) emit light at a first wavelength. A phosphor material close to LEDs converts at least some of the light to a second wavelength. The light at both wavelengths passes...
7537367 Illumination device, image reading device, and image forming apparatus  
An illumination device that illuminates an original document by propagating an illuminating light beam output from each of a plurality of light emitting diodes from a first end surface of a light...
7537353 Flood and back lit instrument cluster  
An instrument cluster assembly includes an outer gauge that is disposed about an inner gauge. The inner gauge is flood lit and the outer gauge is back lit. A single light guide assembly receives...
7537352 Light emitting diode illumination device capable of providing uniformly polarized light  
A LED illumination device includes a tapered light guiding member, a LED, a reflective polarizer and a quarter-wave retarder. The light guiding member includes a light input surface and an opposite...
7534022 Backlight module  
A backlight module includes a light box, at least one light guide tube, and at least one light source. The light box has a light exit side. The light guide tube has a plurality of microstructures...
7531197 Toy candy dispensing assembly with tongs  
Illuminated tongs include a pair of arm members joined together at a hinged end for relative moment to grasp an object such as a translucent confectionary item. A battery compartment is connected...
7527401 Backlight module  
A backlight module is provided. The backlight module includes a frame, a reflector, a plurality of light sources, at least one fan and at least one air vent. The frame has a lateral plate. The...
Matches 1 - 50 out of 529 1 2 3 4 5 6 7 8 9 10 11 >