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Light Emitting Diode (LED)

Subclass of:

362 - Illumination

362551000 - LIGHT FIBER, ROD, OR PIPE

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DocumentTitleDate
20130044505ILLUMINATION APPARATUS - An illumination apparatus includes a light-guiding pillar, a sleeve, and a point light source. The light-guiding pillar has a light-emitting surface, a bottom surface, a light incident surface, and a reflection bar disposed on the bottom surface. An extension direction of the reflection bar is parallel to an extension direction of the light-guiding pillar. The light incident surface of the light-guiding pillar is disposed in the sleeve. The sleeve includes a reflection portion surrounding the light incident surface and extending along a direction away from the light-guiding pillar. An internal diameter of the reflection portion decreases in a direction away from the light incident surface. The portion of the light beams emitted by the point light source are reflected to the light incident surface by an inner surface of the reflection portion and enter the light-guiding pillar.02-21-2013
20090201698Illumination device - An illumination device is specified which has a light source (08-13-2009
20120163014OPTICAL ELEMENT - It is disclosed an optical element (06-28-2012
20100020565Achromatic Homogenizer and Collimator for LEDs - A lens arrangement with an achromatic homogenizer and collimator for multiple LEDs. The lens arrangement combines the hemispherical emittance profiles from one or more LEDS into a collimated beam without chromatic aberration. The lens arrangement has one or more LEDs, a homogenizer, a solid lightpipe, an internal parabolic reflector, a retroreflector, and a refractor. The emittance profiles of the LEDs are distributed evenly over space and angle by multiple reflections inside a diffusely reflecting cavity of the homogenizer. The internal reflector has a numerical aperture of 1.0, which defines a hemispherical solid angle of collection within air. The retroreflector directs rays away from the LEDs. The retroreflection permits space for the electronics of high radiance LEDs. The refractor converts the retroreflector rays in a plurality of shapes. The lens is optimally designed for applications with high standards for color mixing, uniformity, and efficient conversion of electrical power into light.01-28-2010
20120170303ILLUMINATION APPARATUS WITH HIGH CONVERSION EFFICIENCY AND METHODS OF FORMING THE SAME - In various embodiments, an illumination apparatus includes a substantially planar waveguide, a plurality of light sources embedded within the in-coupling region of the waveguide, and a film disposed over the out-coupling region of the waveguide. The film has a thickness less than approximately 100 μm and comprises or consists essentially of a photoluminescent material. The photoluminescent material converts a portion of light emitted by at least one of the light sources to a different wavelength. A surface of the out-coupling region has an average reflectivity of greater than approximately 90%. Light emitted by the light sources mixes with light converted by the photoluminescent material to form substantially white light, and the conversion efficiency of the illumination apparatus is greater than approximately 70%.07-05-2012
20110194304POROUS AND NON-POROUS NANOSTRUCTURES AND APPLICATION THEREOF - A method for producing a fiber membrane of nanofibers that have both smooth and porous surface features. The method includes materials processing using polymer mixes with solvents and melt polymers with additives. The method includes nanomaterial incorporation onto a fiber structure after formation of the fiber structure. The fiber structure can be a part of a nanoparticle carrier material, a nanoparticle disposal medium, a lighting medium, and a catalysis medium.08-11-2011
20100157621LIGHT EMITTING DEVICE WITH LED OPTICAL FIBER COUPLING - An exemplary light emitting device includes light emitting diodes optical fibers, and a light guide body. Each optical fiber includes a light input end and a light output end. Each light emitting diode is optically coupled to the light input end of a corresponding optical fiber. The light guide body includes a light incident surface and a light emitting surface. The light output end of each optical fiber is optically coupled to the light guide body at the light incident surface such that light output from the light output end is capable of emitting from the light guide body through the light emitting surface.06-24-2010
20100073957OPTICAL IRRADIATION DEVICE - An optical irradiation device incorporating a cluster of LEDs arranged so that shaped facets of adjacent LEDs come together to increase the packing density of LEDs in the cluster. A light guide collects light emitted by the LEDs. Two or more light guides and LED clusters may be arranged in series to produce a single light beam. A heat pipe is provided to conduct heat away from the LEDs. The heat pipe may be annular and contain an inner storage space for batteries or the like.03-25-2010
20100073956HEAT DISSIPATION MODULE WITH LIGHT GUIDING FINS - A heat dissipation module being applied to guide at least one illumination light beam projected from at least one light emitting member, and being applied to release heat energy when projecting the illumination light beam is disclosed in the present invention. The heat dissipation module comprises a heat dissipation base, a plurality of heat dissipating fins, and a plurality of light guiding fins. The heat dissipating fins are integrally extended from the heat dissipation surface for dissipating the heat energy, and the light guiding fins are integrally extended from the arrangement surface for reflecting the illumination light beam and guiding the illumination light beam to be projected along an illumination direction.03-25-2010
20130033888LIGHTING DEVICE - There is provided a lighting device and a method to manufacture such a lighting device. The inventive concept is based on manufacturing a lighting device on an at least partly flexible sheet assembly which is rolled into a tube, such that the light source of the lighting device is arranged within the tube. The flexible sheet assembly is arranged such that the tube provides a light mixing chamber and light exit surface for the lighting device. Thus, the tube shaped lighting device instantly delivers the necessary optical and mechanical properties for easy assembly and the functionality of a light engine.02-07-2013
20110122648HIGH DENSITY DIGITAL SIGNAL CROSS-CONNECT SYSTEM - A telecommunication panel may comprise a chassis configured to receive insertable Digital Signal Cross-connect (DSX) modules and a backplane connected to the chassis. The DSX module is compact to fit into the telecommunication panel. A ratio of the number of the insertable 6-port DSX modules over the backplane surface area at least about 0.37 modules per square inch is achieved. The DSX module may include a printed circuit board and a light emitting diode (LED) light pipe on the printed circuit board to minimize the width of the DSX module. The DSX module may be inserted into the telecommunication panel horizontally or vertically so that the telecommunication panel receives a maximum number of DSX modules.05-26-2011
20090213615LIGHT EMITTING DEVICE HAVING A STRAIGHT-LINE SHAPE - A light emitting device having a straight-line shape is provided with: a pair of first and second electrodes each having a straight-line shape which face each other; and a phosphor layer having a straight-line shape provided so as to be sandwiched between the pair of electrodes, wherein at least one of the pair of first and second electrodes is a transparent electrode, at least one buffer layer is provided so as to be sandwiched between the first or second electrode and the phosphor layer, and the buffer layer makes the height of a potential barrier between the electrode and the phosphor layer which sandwich the buffer layer lower than the height of a Schottky barrier when the electrode and the phosphor layer are brought into direct contact.08-27-2009
20130083555LIGHTUNG MODULE AND ILLUMINANT DECICE HAVING THE SAME - A lighting module includes an illuminant unit, a light guide pillar and a first reflecting member. The illuminant unit has an optical axis and includes at least a LED. The light guide pillar includes a base and a light guide part, the LED disposed on the base, the light guide pillar is extended from the base along the optical axis and an end of the light guide pillar has a top surface. The top surface is concave toward the base and is continuous. The first reflecting member is disposed on the top surface. Wherein a partial light emitted by the illuminant unit is travelling to the first reflecting member through the light guide pillar, the first reflecting member reflects the partial light such that the partial light emits from the light guide part.04-04-2013
20130083554LIGHTING DEVICES AND METHODS FOR PROVIDING COLLIMATED DAYLIGHT AND AUXILIARY LIGHT - Lighting devices and methods for providing collimated daylight and auxiliary light are disclosed. Some embodiments disclosed herein provide a daylighting apparatus including a tube having a sidewall with a reflective interior surface, one or more auxiliary light sources, and a collimator. In some embodiments, the tube is disposed between a transparent cover positioned to receive daylight and a diffuser positioned inside a target area of a building. In certain embodiments, the tube is configured to direct at least a portion of the daylight transmitted through the transparent cover and/or at least a portion of generated auxiliary light towards the collimator and the diffuser.04-04-2013
20120182757LIGHT-GUIDE TYPE ILLUMINATION DEVICE - A light-guide type illumination device includes a heat-dissipating unit, a conductive unit, a light-emitting unit and a light-guiding unit. The heat-dissipating unit includes a heat-dissipating body. The conductive unit and the light-emitting unit are respectively disposed on a first side and a second side of the heat-dissipating body. The light-emitting unit includes at least one light-emitting element electrically connected to the conductive unit for generating light beams. The light-guiding unit includes at least one light-guiding element disposed above the light-emitting unit. The light-guiding element has a light input surface formed on a bottom side thereof for receiving the light beams and an optical surface-treated layer formed on at least one lateral surface thereof. Hence, the instant disclosure can provide an annular 360-degree light-emitting range by matching the light-emitting unit and the light-guiding unit, thus any type of conventional energy-saving bulb can be replaced by the illumination device.07-19-2012
20120182755ILLUMINATING SYSTEM OF FLEXIBLE SHAPE - Disclosed is an illuminating system of flexible shape and comprising at least one LED disposed on a flexible carrier material, an optic being provided that permits uniform, directed and/or glare-free light emission.07-19-2012
20100265732Light tube with led light source - A light tube with an LED light source includes a casing, a control circuit board, an LED circuit board inside the casing, and LEDs coupled to the LED circuit board. Input and output ports of the control circuit board are connected to pins of the casing via an input line and to the LED circuit board via an output line, respectively. A power module and a control module are provided on the control circuit board and at input and output ends thereof, respectively. The power module includes first and second filter capacitors and a rectifier bridge circuit. The first and second filter capacitors straddle and connect with input and output ends of the rectifier bridge circuit, respectively. The output end of the rectifier bridge circuit connects with the control module. Thereby, high-frequency AC from an electronic ballast or low-frequency AC is converted to DC for the LEDs.10-21-2010
20100097821LIGHT EMITTING DIODE-BASED LAMP HAVING A VOLUME SCATTERING ELEMENT - A lamp having a candle-like appearance and using one or more light-emitting diodes (LEDs) as its light source is presented. The candle-like appearance arises because light is emitted from only a small volume at or near the center of the bulb. The heat sink and control electronics are located outside the bulb of the lamp. Inside the bulb is a set of secondary optics that guide the light from one or more LEDs to an emission point at a prescribed location in the interior of the bulb. The secondary optics include a light pipe that guides light away from the LED chip, and a volume scattering element that receives the light from the light pipe and scatters it into various directions. The volume scattering element is made from a transparent base material, and includes transparent particles of a predetermined size and refractive index. Because the lamp is typically used in an overhead position, such as in a hanging chandelier, the density of particles in the volume scattering element, the particle size and the particle refractive index are chosen to produce a scattering pattern that directs more light downward (toward the base of the bulb) than upward, while maintaining a reasonable efficiency (fraction of produced light that successfully exits the lamp). Simulation results are presented.04-22-2010
20100097820METHOD AND APPARATUS FOR DIRECTING LIGHT AROUND AN OBSTACLE USING AN OPTICAL WAVEGUIDE FOR UNIFORM LIGHTING OF A CYLINDRICAL CAVITY - A method and apparatus for directing light from a light source along a trajectory to avoid particular obstacles and provide uniform illumination of a surface having a particular geometry such as a cylindrical geometry is described. The surface may enclose components such as PCBs that provide particular functionality that operate as obstacles to a light beam.04-22-2010
20120218774Led light bulb - The LED bulb includes a body in the shape of a standard domestic light bulb and has a base which can be screwed into a standard AC receptacle. The bulb comprises a plurality of cooling fins made of aluminum and cast to form the outer surface of the light bulb. A central opening extends axially through the bulb with the interior edges of the cooling fins forming the interior periphery of the opening. The bulb thus provides two cooling air flow paths. A heat sink for supporting a circuit board carrying the LEDs is cast together with the fins. The bulb may be connected in any orientation and still retain its same cooling characteristics. A lens faceted circular surface also having a central opening disperses the photons in an overlapping manner to provide a uniform alighted area even though the bulb has a central opening.08-30-2012
20090040782LED 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 portion secures the light pipe and provides a rotatable function for the light pipe. The support portion further includes a clamp and a base member. A clamp has two second fastening portions at opposite sides thereof. The second fastening portions engage with the first fastening portions. The clamp further includes a strip hollow slot. A base member includes a pair of positioning portions for holding an outer wall of the clamp, wherein a fastener is led through the strip hollow slot and fastened on the base member. The clamp slides relative to the base member along the strip hollow slot such that the light pipe rotates relative to the base member.02-12-2009
20090091945Coloured Polyurethane Light Guides - An optical illumination device (04-09-2009
20110013415DISCRETE LIGHT GUIDE-BASED PLANAR ILLUMINATION AREA - In one aspect, a planar illumination area includes two light-guide elements, each with an out-coupling region. At least a portion of each out-coupling region overlaps with at least a portion of the other. The overlapping region emits a substantially uniform light output power.01-20-2011
20130063963LED TRACK LIGHTING HAVING AN ILLUMINATED TRACK - An LED track-lighting system includes an LED for emitting light. A light-transmitting element captures light emitted by the LED light and emits it over at least a portion of the track.03-14-2013
20130063962OPTICAL ELEMENT AND ILLUMINANT DEVICE USING THE SAME - An optical element is assembled to a light emitting diode (LED) to form an illuminative light source. The optical element includes a transparent main body having a light guiding pillar and an extending part. The light guiding pillar has a top surface and a bottom surface having a recess. The extending part is extended from the circumference of the top surface and an end of the extending part has at least a light-emitting surface. Wherein the LED is disposed on the recess and emits light to the optical element. The extending part guides the light and enlarges the light-emitting angle.03-14-2013
20130063964Illumination Apparatus with High Conversion Efficiency and Methods of Forming the Same - In various embodiments, an illumination apparatus includes a substantially planar waveguide or a light box, at least one light source emitting light therein, a layer of photoluminescent material for converting a portion of the light to a different wavelength, a reflector for reflecting light back-scattered from the photoluminescent material, and an optically active layer for separating light interacting with the photoluminescent material from light propagating within the waveguide or light box.03-14-2013
20110205752Lighting Device - A lighting device is described. In accordance with one implementation, a lighting device comprises a housing having a top wall operably connected to a bottom wall. The housing has a front and a rear, and a cover is operably connected to the rear of the housing. At least one mechanism is located on at least one of the walls of the housing for operably connecting the lighting device to a second lighting device. A mechanism for holding at least one light-emitting diode is operably connected to the front of the housing and a power source. At least one light-emitting diode is installed on the mechanism for holding the at least one light-emitting diode.08-25-2011
20090237956LIGHT EMITTING DIODE ASSEMBLY - An LED assembly (09-24-2009
20090231878ILLUMINATION DEVICE COMPRISING A LIGHT SOURCE AND A LIGHT-GUIDE - Proposed is an illumination device (09-17-2009
20130163273LED ARRAY LIGHTING ASSEMBLY - A lighting assembly including a plurality of LED light sources and a light-guide assembly with a plurality of light guides each having a proximal end terminating in a recess and a distal end, a mating cap coupled to the proximal end of the plurality of light guides and aligning each recess with a corresponding LED light source in the plurality of LED light sources, and a light-emitting lens with a receiving surface coupled to the distal end of each of the plurality of light guides and able to transfer light emitted from the distal end of each of the plurality of light guides into the light-emitting lens and a curved light-emitting surface opposite the receiving surface, the light-emitting surface able to emit light from within the light-emitting lens, the light within the light emitting lens being a blend of light emitted from two of the plurality of light guides.06-27-2013
20120236586LED LIGHT GUIDE STRUCTURE - A light guide structure using an LED as a light source includes a refracting base, an LED light source module, and an optical fiber tube. The refracting base has a hollow chamber with a wall in a shape without any acute angle, and the LED light source module is fixed onto the refracting base, and the LED light source module includes an LED installed in the hollow chamber. One end of the optical fiber tube is disposed in the hollow chamber, and the other end of the optical fiber tube is extended out of the refracting base. Therefore, the invention can increase the number of reflections of the light inside the hollow chamber and reduce the loss of light occurred during the refraction process to provide a lamp with good illumination.09-20-2012
20130188386DATA COLLECTOR WITH EXPANDED FUNCTIONALITY - Embodiments of the present invention recite a data collector with expanded functionality and a method of enhancing revenue generation using a data collector with expanded functionality. In one embodiment, a central unit of a data collector is configured to receive a replaceable unit such that any one of a variety of replaceable units can be configure to be attached to said central unit.07-25-2013
20090310381LED STREETLIGHT STRUCTURE - The present invention discloses an LED streetlight structure, which comprises: a heat-conduction pipe frame, an upper casing, a lower casing, a light concentration plate, and a transparent cover. The upper and lower casings are made of a plastic material and pivotally coupled to each other. The heat-conduction pipe frame has a heat-dissipation seat with main heat-dissipation fins. Two stabilizer boxes with fins are respectively arranged at two sides of the heat-dissipation seat. Heat-dissipation lamp sets insert through the bottom of the heat-dissipation seat. The present invention installs the main heat-dissipation fins on heat-conduction pipe frame and installs the fins on the stabilizer boxes to increase heat-dissipation area. Further, an auxiliary heat-dissipation ventilation device is arranged above the heat-conduction pipe frame and made of aluminum, and aluminum itself benefits heat dissipation. Furthermore, air can be compulsively conducted to the main heat-dissipation fins, then can enhance the dissipation effect.12-17-2009
20090059615Fiber optically enhanced reflective strip - A fiber optically enhanced reflective strip having a first material, a light pipe inside the first material having an end, and a LED positioned proximate the end of the light pipe to transmit visible or infrared light to the first material to illuminate the material is described. The LED transmits single or multiple colored light energies in separated or combined forms through the light pipes. The strip produces multiple spectrums of visible and/or infrared light output that can be recognized by special IR sensitive equipment. The strip includes an external removable battery source and current limiting resistor that run on quiescent technology allowing the strip to output light for at least two to three weeks on lightweight and tiny batteries that are operated via a manual or automatic switch. The strip includes attachment means that can be attached to the safety apparels. The strip is used for quick identification and allocation of an individual in low or no visibility environments.03-05-2009
20110286233TEMPERATURE MONITORING OF A LIGHT GUIDE IN AN ILLUMINATION APPARATUS - An illumination apparatus having a radiation source and a light guide coupled thereto. The temperature of the light guide is monitored along its complete length. If a threshold temperature is exceeded, a switching mechanism will be triggered. The switching mechanism switches off the radiation source or triggers a warning signal.11-24-2011
20120099339LIGHT ENGINE MODULE AND SYSTEM INCLUDING SAME - An optical device is for receiving light from a light source, the light source having an emission wavelength. The optical device includes an elongated light guide, a first end of the light guide configured to receive light from the light source; and a phosphor disposed on a second end of the light guide, an excitation wavelength of the phosphor substantially similar to the emission wavelength of the light source. The light guide is formed of a material configured to dissipate at least some heat generated by the light source.04-26-2012
20110032726LIGHT DISTRIBUTION ASSEMBLY - A light distribution assembly includes a housing having a longitudinal length and having one or more light sources mounted to the housing. The light distribution assembly also includes a coupler section having a body extending from the housing along a longitudinal axis between a light entry end and a light exit end. The light entry end has a major axis extending in a first direction and the light exit end has a major axis extending in a second direction, wherein the coupler section is shaped such that the body is rotated about the longitudinal axis of the coupler section so that first direction is approximately perpendicular relative to the second direction. One or more light pipes are attached to the light exit end of the coupler section.02-10-2011
20120182756LIGHT GUIDE MODULE OF SCANNING APPARATUS - A light guide module of a scanning apparatus includes plural side-emitting light emitting diodes and a light-guiding post, which are disposed on a circuit board. The light-guiding post has plural reflective structures corresponding to respective side-emitting light emitting diodes for receiving light beams from respective side-emitting light emitting diodes. A spacing interval between two of the side-emitting light emitting diodes at a middle portion of the circuit board is greater than a spacing interval between two of the side-emitting light emitting diodes at a side of the circuit board.07-19-2012
20110292675LED DEVICE HAVING LIGHT GUIDE ARRAY WITH CURVED SURFACE - In an LED device, a light guide array is disposed between a planar LED array light source and a curved housing. A first surface of the light guide array is a plane evenly distanced from the LED array and a second surface of the light guide array is a curved surface evenly distanced from the curved housing. A plurality of guiding channels, either one-to-one or one-to-many to the LED, are aligning along each light axis of the LED in the light guide array, whose reflective surface allows the lights emitted by each LED to reflect thereon and emit from the second surface and simulate a curved light source having substantially the same shape as the curved housing.12-01-2011
20100177532LED LENS - A light modifier for an LED producing light about a central axis is provided. The light modifier includes a lens defining an indentation. The indentation is angled relative to the central axis by an amount less than a complementary angle of a critical angle of the lens along the indentation. The lens can reduce the appearance of a bright spot created by the LED.07-15-2010
20090021957Table lamp structure - The present invention discloses an improved table lamp, which comprises: a lamp base, an arm and a lamp hood. The lamp hood has a light-emitting element. The light-emitting element includes: a light conduction tube, a light conduction material and at least one light-emitting diode. A reflective mirror is arranged on the inner face of the lamp hood and around the light-emitting element. When the light-emitting diode emits light, the light-emitting element also emits light via the conduction of the light conduction tube and the reflection of the light conduction material. Then, the light emitted by the light-emitting element is reflected out by the reflective mirror. Thereby, the present invention can increase the illumination area, promote the brightness, decrease the number of required LEDs and reduce the cost.01-22-2009
20100033986Light Pipe For Imaging Head of Video Inspection Device - A light dispersal unit or light pipe for a video imaging device includes a transparent body. The body includes a tubular ring having an outer diameter and a through bore defining an inner diameter. Four equidistantly spaced raised portions are homogenously joined to the tubular ring. The ring has a semi-circular shape corresponding to the outer and inner diameters of the tubular ring. The raised portions each include a slot created between opposed first and second extending portions, the slot having an end wall and opposed first and second slot walls. A rounded end face defines a free end of each of the first and second extending portions facing away from the tubular ring. The rounded end face includes at least two curved portions each having a different radius of curvature.02-11-2010
20090122573ILLUMINATION DEVICE - Illumination devices include a light source including a substantially planar light-emitting surface and an optical rod or optical taper disposed proximate to the substantially planar light-emitting surface to optically couple the optical rod and the substantially planar light-emitting surface.05-14-2009
20100091517ACTIVATED LOW-POWER LIGHTING - The present invention provides a lighting unit comprising a diffusion optic fibre, a light emitting diode (LED) coupled to the optic fibre; and an actuator connected to the LED for selectively activating the LED so that light is sent through the optic fibre and provides lighting. The lighting unit is structured and arranged for at least one of path lighting, staircase lighting, outdoor mats, mailbox lighting; curb address lights, driveway lighting, plant lighting, boat dock lighting, exterior house lighting, furniture patios, specialty home products, airplane lighting, motorcycle lighting, boat lighting; and auto lighting. The lighting unit may also be structured and arranged to be combined with at least one of a net, a ball, a glove, an out-of-bounds lighting, a bicycle, a tricycle, a big-wheels, and golf equipment. The fiber may be wound into thread and woven into at least one of clothing, coats, hats, gloves, bracelets, necklaces, running vests, backpacks, strollers, carriages, and pet collars. The lighting unit may be structured and arranged for at least one of hospital/nursing home lighting, schools and school facilities, movie theatres, industrial signage for property, buildings or vehicles, streets and highways, road signs; and fencing.04-15-2010
20100254156MULTI-DIRECTIONAL LIGHT PIPE WITH METERED SIDE SCATTER - The present invention is directed to a light pipe that is used to illuminate a portion of a surface of a set top box when the instrument power is turned on. The light pipe can be molded for example from plastic. The light pipe should advantageously be a good carrier of photons down a linear path. Additionally, light pipe should allow for light to be transmitted out the sides of the part.10-07-2010
20120033441LIGHTGUIDE MODULE - A lightguide module having a linear collimator produced from optically transparent material, a toroidal lens produced from optically transparent material, and a light source, wherein the toroidal lens is disposed between the linear collimator and the light source, at the exit of the linear collimator are found scattering elements, and wherein a light-emitting part of the light source is directed toward an entry surface of the toroidal lens and an exit surface of the toroidal lens is directed toward entry surfaces of the linear collimator. The light source may be a light-emitting diode and the toroidal lens may be a Fresnel type lens.02-09-2012
20120033440EXPANDABLE LIQUID VOLUME IN AN LED BULB - An LED bulb includes a base, a shell, a plurality of LEDs, a thermally conductive liquid, and a liquid-volume compensator mechanism. The shell is connected to the base. The plurality of LEDs is attached to the base and disposed within the shell. The thermally conductive liquid is held within the shell. The liquid-volume compensator mechanism is attached to the base. The liquid-volume compensator mechanism is configured to compensate for expansion of the thermally conductive liquid. The liquid-volume compensator mechanism moves from a first position to a second position. A first volume is provided for the thermally conductive liquid in the first position. A second volume, which is greater than the first volume, is provided for the thermally conductive liquid in the second position.02-09-2012
20090207627FIBER OPTIC TAIL LIGHT SYSTEM - A fighting system comprising: a light harness; and a fiber optic light pipe having a body with an outer diameter, and a jacket that substantially covers the entire length thereof between a proximal and distal end about the outer diameter; where said proximal end is cooperatively connected to said light harness; said second end is cooperatively connected to a diverging lens yielding an output of light.08-20-2009
20120106192LIGHT EMITTING DIODE ILLUMINATION SYSTEM - In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications.05-03-2012
20120106191LED Homogenizer - One embodiment of an optical system described herein comprises a source including light emitting diode chip and a homogenizer. One embodiment of the homogenizer comprises an entrance face positioned to receive light from the source, the entrance face having a first shape, a body configured to homogenize the received light and an exit face, the exit face parallel to the primary emitting face of the source. The homogenizer can emit light with a half angle that is at least 80% of the half angle of light entering the homogenizer.05-03-2012
20090273945MODULAR, LUMINOUS, SMALL FORM-FACTOR SOLID-STATE LIGHTING ENGINE - The invention comprises a small form-factor solid-state light engine that provides uniform lighting with high efficiency. The invention provides uniform lighting by practically eliminating any “dead spot” produced by conventional light engines. The invention produces light more effectively and thus fewer light engines need to be employed in a given lighting arrangement. The invention is modular, easily accommodating fiber optics of various sizes and shapes with minimal modification to the components of the light engine.11-05-2009
20120195060ILLUMINATION DEVICE FOR USE WITH SURVEY LEVEL ROD AND METHOD OF USE - A laser readable surveying rod is provided with adjustable lighting elements. More specifically, lighting elements, such as LED lights are provided along a length of a surveying rod such that laser readings may be taken at night or in dark conditions. Lighting elements may be translated along a length of a rod, particularly where it is desirable to illuminate only a portion of a rod and conserve valuable energy.08-02-2012
20100110721Led diaphragm structure - An LED diaphragm structure includes an insulation base, a plurality of frames, and a plurality of LED chips, wherein the insulation base includes an upper surface on which a plurality of receiving recesses are provided. The plural frames include a plurality of positive-pole frames and a negative-pole frame, where the positive-pole frames do not contact with the negative-pole frame. The plural frames and the insulation base are formed together as an integral structure. The plural LED chips are correspondingly disposed in the plural receiving recesses of the insulation base, where each LED chip has its positive-pole terminal and negative-pole terminal electrically connected with contact portions of the plural positive-pole frames and of the negative-pole frame, respectively. Accordingly, the plural frames are combined with the insulation base as an integral structure, such that the LED diaphragm structure so assembled can be lightweight and compact.05-06-2010
20100061114Two-Dimensional Luminaire - A surface luminaire with a luminous chamber in the form of a hollow fiberoptic conductor is provided. The luminous chamber comprising a peripheral frame, an emission opening and a base plate which is populated at least partially with light-emitting diodes and on which sloping faces are arranged. The sloping faces bridge the edge region of the base plate and a region of the peripheral frame which adjoins the base plate and form a cavity between the lower region of the peripheral frame, the edge region of the base plate and the sloping faces, in which cavity control electronics, which drive the light-emitting diodes, are arranged.03-11-2010
20080291691SIDE-EMISSION TYPE LIGHT-EMITTING DIODE AND A BACKLIGHT UNIT USING THE LIGHT-EMITTING DIODE - A side-emission type light-emitting diode including: a first substrate having a concave formed in one of side surfaces of the first substrate, the concave including an inner surface which is configured to be a first reflecting surface; an LED-element-mounting board of thin plate shape, arranged on the lower surface of the first substrate, the board configured to close the concave at the lower surface of the first substrate; an LED element mounted on the board and arranged in the concave; and a light-transmitting resin filled in the concave and configured to seal the LED element.11-27-2008
20080310183Structure of a Color Changeable Soft-Tube Light - An improved color changeable tube light includes a opaque core line, a plurality of LEDs being arranged in the core line, a translucent diffuser with the same length as the core line, a cladding layer having the same length as the core line and covering the core line and being formed by extrusion molding integrally with the diffuser into one piece. A unit is formed by disposing a red LED, a green LED and a blue LED of the plurality of LEDs into a fixing means, a plurality of the units are connected in series and disposed in the plurality of transversal through-holes of the core line respectively. The fixing means may be a box. The box may be quadrate, round or elliptic in shape. The tube light of the present invention to have the effects of light beams of neon light, and the color changing and the color mixing to obtain various results are available.12-18-2008
20080298080FLICKERLESS LIGHT SOURCE - A flickerless light source comprising a transparent or semitransparent diffuser, a lightpipe with a patterned surface inside the diffuser, and an LED light source attached to each end of the lightpipe is disclosed. The patterned surface of the lightpipe diffuses or reflects light emitted by the LED light sources and through the lightpipe to provide a light with uniform brightness and intensity. The lightpipe is coated with a thin layer of visible-light transparent material which is doped with organic dye molecules. The organic dye has strong ultraviolet light absorption characteristics. By changing the doping concentration of the dye molecules the coating can become total opaque or semi-transparent to certain wavelengths and selective wavelength conversion is obtained. In this way light color, brightness, and intensity can be varied or controlled.12-04-2008
20080304280FLICKERLESS LIGHT SOURCE - A flickerless light source comprising at least two lightpipes with patterned surfaces, a single sided LED light source attached to one end of each lightpipes, and a coupler for holding the lighpipes together. The coupler comprises a hollow sleeve, a coupler with a reflective face, or a coupler with a dual sided LED light source is disclosed. The patterned surface of the lightpipes diffuse or reflect light emitted by the single and dual LED light sources and through the lightpipes to provide a light with uniform brightness and intensity. The coupler with reflective face reflects light back into the lighpipes. The coupler with the dual sided LED light source in addition to the single sided light sources emits light into the lightpipes.12-11-2008
20080205077Lighting System Comprising 2D Led Stack - The invention relates to a lighting system (LSI) which comprises a plurality of light engines (LEa08-28-2008
20110267836LIGHT SOURCE - The present invention relates to a light emitting diode, LED, light source that may be arranged for retrofitting into a luminaire employing an incandescent light source. The light source comprises a light guide into which light from one or more LEDs in a light unit arranged at one end of the light guide is injected, and a reflector having a reflecting surface arranged at the other end of the light guide and facing towards the light guide capable of reflecting light incident on the reflecting surface. According to the present invention, the reflecting surface can be arranged in a number of exemplary ways such as to enable the light emitted from the light source to have a spatial intensity distribution that is similar to the light intensity distribution of an incandescent light source.11-03-2011
20090129113CONNECTOR ASSEMBLY - A connector assembly is provided. The connector assembly includes a housing having at least a socket, an electronic device disposed in the housing, a protection member disposed on a side of the housing, a light emitting element disposed on the protection member, a light pipe disposed on the housing for guiding light from the light emitting element, a shield surrounding the protection member and the light emitting element, and a cover encompassing the light pipe, the shield, and the light emitting element.05-21-2009
20120069595LINEAR ILLUMINATION DEVICES - In various embodiments, LED-based illumination devices include an inlet region for receiving the LED light that is complementary in shape to the lens of the LED.03-22-2012
20090141515FLICKERLESS BACKLIGHT FOR A DISPLAY PANEL - A backlight assembly for a display panel comprising a diffuser, at least one lightpipe with a patterned surface inside the diffuser, a single sided LED light source attached to each end of the diffuser is disclosed. When a plurality of lightpipes is utilized a dual sided LED light source connects the lightpipes together. The patterned surface of the lightpipes diffuse or reflect light emitted by the LED light sources to provide a light with uniform brightness and intensity. The lightpipes are coated with a thin layer of visible-light transparent material which is doped with organic dye molecules. The organic dye has strong ultraviolet light absorption characteristics. By changing the doping concentration of the dye molecules the coating can become totally opaque or semi-transparent to certain wavelengths and selective wavelength conversion is obtained. In this way light color, brightness, and intensity can be varied or controlled.06-04-2009
20090027914Structure for a center high mounted stop lamp - The present invention discloses a structure for a center high mounted stop lamp, which comprises: a light pipe, a housing and LEDs. The light pipe has an inorganic light guide coating on a lateral side thereof and has LEDs at both ends thereof. The housing covers the light pipe and has a light reflection layer. The light reflection layer is arranged around the light pipe and behind the inorganic light guide coating. The light emitted by LEDs is scattered by the light pipe and reflected by the inorganic light guide coating. Thus, the light pipe can uniformly emit light. Further, the light emitted by the light pipe is concentrated and reflected out by the light reflection layer. Thereby, the present invention can decrease the number of required LEDs, save power, prolong the service life of LEDs and promote economic efficiency.01-29-2009
20090034285SCANNER MODULE AND IMAGE SCANNING APPARATUS EMPLOYING THE SAME - A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.02-05-2009
20090052204Surface Light Emitting Apparatus - The present invention provides a thin, low-power consumption, lightweight, and inexpensive surface light emitting apparatus using LEDs in conjunction with a light conducting member having a plurality of light conducting rods. More specifically, the surface light emitting apparatus of the invention comprises: a light conducting member constructed from a plurality of light conducting rods and having an end face and a light-emitting face; a light source for emitting light into the light conducting member through the end face; and light deflecting means for causing the light introduced through the end face of the light conducting member to emerge from the light-emitting face of the light conducting member.02-26-2009
20110228549HEADLAMP BULB TYPE LIGHT PIPE - The present invention provides an automotive headlamp assembly having a light pipe. The present invention provides use of at least one incandescent light bulb to illuminate the light pipe. Power consumption is reduced from approximately 35 watts to 10 watts. The present assembly consists of a light pipe, at least one light source positioned at either end of the light pipe, the light source being an incandescent light bulb, at least one reflector and an elongated reflector positioned adjacent the light pipe. The reflector is positioned adjacent the light source to capture light from the light bulb, concentrate the light into a beam and reflect the light into the light pipe. The reflector aims light directly down the light pipe without the use of cable or LED mounted to the light pipe. The reflector prevents lost light and creates a more efficient headlamp assembly. The light pipe is a generally cylindrical elongated member having a plurality of attachment members. Light pipe and attachment members are molded as a one piece construction. Furthermore, an elongated reflector is positioned adjacent the light pipe thereby preventing lost light and creating the illusion of a brighter light pipe.09-22-2011
20110141760LUMINOUS INTERIOR TRIM ELEMENT, AND CORRESPONDING DOOR AND MOTOR VEHICLE - A trim element (06-16-2011
20110228550LIGHTING FIXTURES HAVING ENHANCED HEAT SINK PERFORMANCE - Lighting fixtures having an enhanced heat sink performance are provided. A heat sink member is a unitary ring member. An outside surface of the heat sink member is disposed exterior of the lighting fixture and includes a plurality of outwardly extending fins. An inside surface of the heat sink member is disposed inside of the lighting fixture and includes a plurality of surfaces configured for mating engagement with a respective light source board. The heat sink member joins upper and lower globe portions of the lighting fixture. A reflector or a light pipe optionally is provided interior of the light fixture, providing illumination directional control. A polygon shaped lighting fixture provides a LED light output to cross in a plane proximate to a light center of the fixture.09-22-2011
20090103325Traffic signal having a uniform light surface - A LED signal (04-23-2009
20090251918LIGHTING DEVICE, AUTOMOTIVE HEADLIGHTS AND METHOD FOR PRODUCING A LIGHTING DEVICE - Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight.10-08-2009
20090122572Apparatus configured to provide functional and aesthetic lighting from a fan - One embodiment of the present invention provides an apparatus that is configured to provide direct and/or indirect and aesthetic lighting from a fan. The apparatus comprises: a motor; a motor housing; one or more fan blades rotating around the motor housing; and one or more stationary light-emitting diodes (LEDs) coupled to the motor housing. Note that the stationary LEDs are configured to direct light into the fan blades, thereby causing the fan blades to illuminate.05-14-2009
20120243254Lighting Module - A lighting module, comprising a printed circuit board, which on the front side thereof, is populated by at least one light source as well as at least one light sensor; a hollow optical waveguide element, which laterally surrounds the at least one light source circumferentially; and a cover at least for the light sensor, arranged on the printed circuit board externally to the optical waveguide element, it being possible for a window to be located in the optical waveguide element to which window is connected a hollow light channel formed in and/or on the cover which leads to the light sensor.09-27-2012
20110128755AMBIENT MOOD LIGHT IN A SUNROOF OPENING TRIM RING - The present invention provides a lighting assembly wherein a trim ring, containing a lighting assembly, is mounted on a vehicle headliner. The lighting assembly contains a lighting element having a light engine. The light engine having a housing and a light source mounted within the housing. The housing optionally containing a circuit board adapted to control light emitting from the light source. The light source contained within the housing may either be an LED or a traditional light bulb. The light source may optionally be colored, or textured, to provide unique ambient mood light options. The assembly further provides a light pipe having at least one light pipe aperture. The lighting element positioned adjacent, or connected to, the light pipe aperture. The light source in the lighting element directs light down the light pipe thereby creating a uniform output of light along the light pipe. Light from the light pipe is directed into the vehicle interior, mainly onto the vehicle headliner, thereby creating ambient mood lighting within the automotive interior.06-02-2011
20100177531MOBILE DEVICE WITH ILLUMINATION - A mobile device is provided comprising a light guide modified at a plurality of locations to let light guided in the light guide at least partially escape. Furthermore, methods and apparatuses for manufacturing such mobile devices are provided.07-15-2010
20130215636LIGHT MIXING LENSES AND SYSTEMS - Lighting modules and lighting systems containing one or more lighting modules, and associated methods, are provided that receive light from one or more light sources for projecting it to a target surface, e.g., in a uniform, patterned, or other controlled manner. In various embodiments, the lighting modules and lighting systems can be used to mix the light generated by one or more sources.08-22-2013
20100265733Attachment System for Light-Conducting Fibers - In an embodiment, an attachment system for communicating light energy from a light source to a light-conducting fiber includes a light pipe body sufficiently designed to engage a distal end of a light pipe, the light pipe body comprising at least one opening configured to dissipate heat buildup from light energy; a front assembly sufficiently designed to engage the light pipe body, the front assembly comprising an orifice and at least one opening configured to dissipate heat buildup from light energy; a light-conducting fiber body sufficiently designed to engage the front assembly and to hold a proximal portion of a light-conducting fiber, the light-conducting fiber body positioned in the orifice of the front assembly; and an optical taper assembly sufficiently designed to hold an optical taper, the optical taper assembly positioned between and spaced apart from the front assembly, and positioned between and spaced apart from the light pipe.10-21-2010
20100208488LED Lamp Including Light Guide and Method of Reflecting Light Using Same - An LED lamp including a light guide/light pipe, and a method of reflecting light using same, are disclosed. The LED lamp includes a transparent light pipe enclosed in an envelope, where the light pipe has a lower section and an upper section. The lamp also includes an LED in a recess at a lower end of the lower section, and a reflector formed by an indentation in an upper end of the upper section. The lower section may be a compound parabolic concentrator, and the upper section may be a tapered cylinder. The lower section of the light pipe collects light emitted from the LED, the upper section of the light pipe directs the collected light onto the reflector, and the reflector reflects the directed light in a radial direction.08-19-2010
20120243253LIGHT RING FOR APPLIANCE CONTROL ADJUSTABLE FOR CONSOLE THICKNESS - A backlight for an appliance knob provides a light pipe that may receive light from a light source fixed behind a console at a variety of different extensions permitting ready adjustment of the light pipe to fit closely behind the appliance knob with different console thicknesses and tolerances.09-27-2012
20090116260LIGHTING DEVICE FOR VIDEOENDOSCOPE - A lighting device for videoendoscopic probe, comprising a light generator comprising a case wherein are mounted a light-emitting diode, a lighting endpiece attached to the end of the bundle of lighting fibers configured to adapt the surface of the proximal end of the bundle of lighting fibers to the light-emitting surface of the diode, and a connection part configured to be fixed on a handle of videoendoscopic probe, and to couple with the case, the case and the connection part being configured to maintain the lighting endpiece on the light-emitting surface.05-07-2009
20110176326ILLUMINATABLE APPARATUS AND METHOD OF MANUFACTURING SAME - An illuminatable apparatus includes a fabric sheet containing fiber optic rods interwoven with fabric threads. The ends of the fiber optic rods are bundled together to form a ferrule which is removably insertable into a holder carrying a light source and a power source. An outer ferrule can be fixed over the sleeve-like ferrule or robust applications. The holder may be removably attached to articles of clothing. The illuminatable fabric sheet can be used as an optical bandage, in a medical cast, in a negative pressure device, or in a bed pad/sheet, or in a therapeutic brace support.07-21-2011
20090040783Compact, high efficiency, high power solid state light source using a single solid state light-emitting device - A compact, high-efficiency, high-power, solid state light source, comprising a high-power solid state light-emitting device, a light guide having a proximal light-receiving end proximate the light-emitting device and a distal light-transmitting end spaced farther from the light-emitting device, and a mechanical light guide fixing device coupled to the light guide near its proximal end, to hold the proximal end of the light guide in position near the light-emitting device.02-12-2009
20090109699LIGHT SOURCE - A light source, such as for a projection system, having a plurality of semiconductor chips and at least two different, electromagnetic-radiation-emitting chip types with different emission spectra, each semiconductor chip having a chip coupling-out area through which radiation is coupled out. Furthermore, the light source has a plurality of primary optical elements, each semiconductor chip being assigned a primary optical element, which in each case has a light input and a light output and reduces the divergence of at least part of the radiation emitted by the semiconductor chip during the operation thereof. The semiconductor chips with the primary optical elements are arranged in at least two groups that are spatially separate from one another, with the result that the groups emit separate light cones during operation of the semiconductor chips. The separate light cones of the groups are superposed by means of a secondary optical arrangement to form a common light cone.04-30-2009
20100302797VEHICLE EXTERIOR MIRROR SYSTEM - A lighted exterior mirror system includes an exterior mirror assembly having a folding portion and a non-folding portion. The non-folding portion is configured to mount to a side of a vehicle and the folding portion includes a reflective element. The folding portion is movable relative to the non-folding portion and between a normal operating position and a folded position. A ground illumination light is configured to project a pattern of light from the exterior mirror assembly to provide a lighted zone on a ground area adjacent the side of the vehicle at least at a front door region at the side of the vehicle where occupants may enter/exit the vehicle. The pattern of light projected by the ground illumination light provides ground illumination of at least about one lux illumination intensity at least on the ground area adjacent the front door region at the side of the vehicle.12-02-2010
20130141934IRRADIATION APPLIANCE - The invention relates to a radiation device that includes a housing, a light-emitting unit and a light-absorbing unit which is provided with an inlet opening and a reflector element. The reflector element extends across the entire distance between the light-emitting unit and the inlet opening of the light-absorbing unit.06-06-2013
20110110114Structured illumination probe and method - A structured illumination surgical system is disclosed, one embodiment comprising: a light source for providing a light beam; an optical cable, comprising an optical fiber, optically coupled to the light source for receiving and transmitting the light beam; a handpiece, operably coupled to the optical cable; an optical element, a proximal end of the optical element optically coupled to a distal end of the optical fiber, for receiving the light beam and scattering the light beam to illuminate an area (e.g., a surgical site), wherein the surface area of the proximal end of the optical element is greater than the surface area of the distal end of the optical fiber; and a cannula, operably coupled to the handpiece, for housing and directing the optical fiber and the optical element.05-12-2011
20100232176Illuminator method and device - A first toroidal ray guide defines an axis of revolution and has a toroidal entrance pupil adapted to image light incident on the entrance pupil at an angle to the axis of revolution between 40 and 140 degrees, and it also has a first imaging surface opposite the entrance pupil. A second toroidal ray guide also defines the same axis of revolution and has a second imaging surface adjacent to the first imaging surface. Various additions and further qualities of the ray guides, which form optical channels, are disclosed. In a method light emanating from a source at between 40-140 degrees from an optical axis is received at an entrance pupil of a ray guide arrangement that is circularly symmetric about the optical axis. Then the received light is redirected through the ray guide arrangement to an exit pupil in an average direction substantially parallel to the optical axis.09-16-2010
20110019433LED LIGHTING DEVICE - A light-emitting diode lighting device may include a plurality of light-emitting diodes fastened on a flexible substrate, the flexible substrate being applied on a surface of a rod-shaped carrier.01-27-2011
20110116284Internal Collecting Reflector Optics For LEDs - An optical system is disclosed that uses an LED light source. The light output is coupled to an optic element formed from a material with a high refractive index. The coupling of the light to the high index material significantly reduces the cone angle of the light. The system is very efficient in that nearly all the light generated by the LED is directed to the intended subject.05-19-2011
20110242837DEVICE FOR MIXING LIGHT - The present invention relates to a device for mixing light. More specifically, the invention relates to a device for mixing light 10-06-2011
20110242836LED Illumination System with Recycled Light - An LED illumination system includes at least one LED element and a recycling reflector having a transmissive aperture through which emitted light passes. The recycling reflector has a curved surface adapted to reflect the impinging light back to the LED element for improved light output through the transmissive aperture.10-06-2011
20110149592LIGHT COLLECTOR FOR A WHITE LIGHT LED ILLUMINATOR - A white light source includes a light-emitting diode (LED) configured to emit white light in an angular distribution. The white light source further includes a light guide and a light collector configured to collect light across the angular distribution. The light collected by the light collector contributes to a total luminous flux of the white light coupled into the light guide.06-23-2011
20120230049HOUSEHOLD APPLIANCE INCLUDING INFORMATION LIGHT DEVICE - A household appliance including an information light device that allows a user of the household appliance to determine when the household device is in operation, and a method thereof. The information light device may include a light guide structured to indicate an operating status of the household appliance. The light guide may be disposed at a lower portion of the household appliance, and embodied as a wave guide where at least part of the light that exits the light guide is guided in a direction that is perpendicular to the light guide and onto a floor where the household appliance is disposed.09-13-2012
20110249467LIGHT EMITTING DEVICE CREATING DECORATIVE LIGHT EFFECTS IN A LUMINAIRE - The present invention relates to a light emitting device (10-13-2011
20090027915LIGHT SOURCE UNIT AND OBJECT READER - A light source unit and reader can include a line light source that is attached to a radiator and a rod lens that is attached above the line light source. The radiator with the line light source and the rod lens attached thereto, and a linear strip-shaped reflector arranged in front of the rod lens, are housed in a carriage. The carriage is supported beneath contact glass and movable in a direction normal to a longitudinal axis of the line light source. The lens has a section in a plane normal to a longitudinal axis of the lens, in which a surface of the lens facing the light source has a curved line that expands or is convexly facing toward the light source. The opposite surface of the lens from the light source has composite curves including a plurality of continuous curves with different radii of curvature. The composite curves are located on both sides of a plane containing the optical axis of the LED and expand or are convex in an opposite direction from the light source.01-29-2009
20090213616CO-FUNCTIONAL MULTI-LIGHT SOURCE LUMENAIRES AND COMPONENTS THEREOF - A lumenaire system for providing illumination by distributing and mixing light from multiple sources of illumination which includes a first light source providing Lambertian light radiation and a second light source providing collimated illumination. There is a prismatic light guide structure having at least two functions, the first function being to refract the light radiation from the first light source disposed as to at least partially surround the light source, and the second function is to guide and distribute light from the second light source so as to mix it with light from the first light source.08-27-2009
20110149590Linear light source - A linear light source, in which an LED is arranged at an end portion of an approximately cylindrical light guiding member configured so that an upper portion, which has an approximately circular portion and which includes a light emitting face, a flat lower portion, which includes a light reflection face formed so as to face the upper portion, and side portions which connect the upper portion and the lower portion to each other, are arranged to extend in a longitudinal direction, respectively, and a light diffusion and reflection member provided outside of the light guiding member.06-23-2011
20130163272USER INTERFACE LIGHTING APPARATUS - A user interface panel includes a user interface substrate, an electronics carrier and a light pipe disposed between the user interface substrate and electronics carrier. A reverse mount, side emitting LED is disposed through an aperture in the electronics carrier so that the LED can emit light into the light pipe.06-27-2013
20080285301LIGHTING DEVICE COMPRISING A PLURALITY OF SEMICONDUCTOR LIGHT SOURCES - A lighting device is disclosed comprising a plurality of semiconductor light sources disposed on a carrier, wherein the light from the light sources is coupled into assigned lightguides at a set angle to the surface normals of the carrier and the lightguides are provided with reflecting and light exit faces such that the envelope of the light outcoupling faces forms a curved surface segment.11-20-2008
20080285300LED illumination engine using a reflector - An illumination engine for a projection display using light emitting diodes (LEDs) that includes a reflector having a first and second focal points, a source of electro-luminescence located proximate to the first focal point to emit rays of radiation in a first range of wavelengths that reflect from the reflector and converge substantially at the second focal point, and a light pipe having an first input end and a first output end, the first input end being located proximate to the second focal point to collect substantially all of the radiation and wherein the first output end transmits substantially all of the radiation. The illumination system may further include a substrate having a first side, a platform disposed proximate to the first side of the substrate, and a plurality of reflectors each having a first and second focal points disposed in the platform, each of the first and second focal points disposed proximate to the first side of the substrate, a plurality of sources of electro-luminescence disposed on the first side of the substrate, each of the sources of electro-luminescence disposed substantially coincident with a corresponding one of the first focal points to emit rays of electromagnetic radiation that reflect from a corresponding one of the plurality of reflectors and converges substantially at a corresponding one of the second focal points, a plurality of light pipes disposed in the substrate, each of the light pipes having an input end and an output end, each of the input ends disposed substantially coincident with a corresponding one of the second focal points to collect substantially all of the radiation, wherein each of the output ends transmits substantially all of the radiation emitted by a corresponding one of the plurality of sources.11-20-2008
20100277943Interchangeable attachments for collars, leashes, belts and accessories - An article, including pet collars and leashes, belts, bags and backpacks, has an interchangeable attachment. The article comprises a proximal end, distal end and a central section having at least one connection means appointed to receive the interchangeable attachment. The interchangeable attachment includes a top wall having a show surface and a back wall having a securing member adapted to engage with the connection means of the article for removably attaching the interchangeable attachment to the article. In one embodiment the interchangeable attachments are provided as button-type attachments. In another embodiment, the interchangeable attachment is provided as an elongated attachment portion appointed to substantially cover the central section of the article. The interchangeable attachments have a plethora of designs and may include LED, fiber optic and/or reflective properties to provide aesthetic appeal, enhanced visibility, and increased safety for pedestrians during nighttime or dusk hours.11-04-2010
20110134657LIGHT-PIPE BASED IDENTIFICATION AND LOCATION SIGNALING LIGHT - A signaling light source facilitates locating personnel under adverse conditions such as in a smoky environment and resists damage from exposure to a harsh user environment A lighting unit includes at least one, and preferably two, of the signaling light sources also includes at least one personnel identifying red-green-blue (“RGB”) light emitting diode (“LED”) Disclosed methods for operating the signaling light source include energizing operation of a LED light source by supplying a sequence of electrical current pulses which repeat at a rate which causes emitted light to pulse visually, supplying electrical current to a pair of LEDs alternatively connected either in series or in parallel depending upon battery operating condition, and monitoring smoke density in environment around the signaling light source and modulating the intensity of emitted light responsive to smoke density06-09-2011
20080278964OPTICAL FIBER ILLUMINATION - A portable device or a cover for a portable device includes a light source to emit light and an optical fiber to illuminate based on light received from the light source.11-13-2008
20100182798ADVANCED CONNECTOR ASSEMBLY - A connector assembly is provided. The connector assembly includes a housing having at least a socket, an electronic device disposed in the housing, a protection member disposed on a side of the housing, a light emitting element disposed on the protection member, a light pipe disposed on the housing for guiding light from the light emitting element, a shield surrounding the protection member and the light emitting element, and a cover encompassing the light pipe, the shield, and the light emitting element.07-22-2010
20090244922LIGHT PIPE, ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE - In a light pipe which allows light from a light source to be incident on the light pipe from an incident opening to be repeatedly reflected on a side wall surface of the light pipe, and to be radiated from a radiation opening, it is possible to radiate illumination light having high directivity and uniform brightness distribution thus radiating light while enhancing utilization efficiency of light. A diffraction portion is formed in a region on an incident opening side of a side wall surface of a light pipe. In the diffraction portion, light is reflected such that a reflection angle with respect to the side wall surface is larger than an incident angle with respect to the side wall surface, and a radiation angle of light radiated from a radiation opening is smaller than an incident angle of light incident on the light pipe from an incident opening.10-01-2009
20110149591Enhanced LED illuminator - An ophthalmic illuminator is disclosed, one embodiment comprising: an illumination source and an optical fiber for transmitting a combined light beam from the illumination source to a site, such as a surgical site within an eye, wherein the illumination source comprises a plurality of light emitting diode (LED) chips optically coupled to a corresponding plurality of light pipes, the LED chips and light pipes arranged in a configuration such that the light pipes converge together at their distal ends to form a cubic box having five sides formed by the distal ends of the light guides and an open side from which the combined light beam, composed of light from a plurality of light beams generated by the LED chips and transmitted to the cubic box by the light guides, is emitted. The luminance of the combined light beam has a luminance greater than the luminance of any one of the plurality of LED chips.06-23-2011
20110261583LIGHT SOURCE - A light source for coupling light into a medical device, particularly a surgical handheld device, preferably for use in ophthalmology, comprising a lamp (10-27-2011
20100027288Optical Devices for guiding illumination - Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device. Acutely angled ramp structures may be provided on both top and bottom surfaces of optical devices for distributing light along such top surface. Illumination apparatuses are also provided using such optical devices.02-04-2010
20110216553SCANNER MODULE AND IMAGE SCANNING APPARATUS EMPLOYING THE SAME - A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.09-08-2011
20120307513LIGHT SOURCE GUIDING STRUCTURE AND LAMP STRUCTURE - A lamp structure includes an electrical connection unit, a light emitting unit, and a light guiding unit. The electrical connection unit includes an electrical connection element. The light emitting unit includes at least one light emitting element disposed on the top side of the electrical connection unit and electrically connected to the electrical connection element. The light guiding unit includes a light guiding element disposed on the top side of the electrical connection unit. The light guiding element has a bottom light-input surface, a top light-output surface, and a surrounding light-output surface. The surrounding light-output surface has a first surrounding region gradually outwardly expanded from bottom to top, a second surrounding region connected to the first surrounding region and gradually inwardly contracted from bottom to top, and a third surrounding region connected to the second surrounding region and gradually outwardly expanded from bottom to top.12-06-2012
20120307514LIGHT EMITTING DIODE ILLUMINATION SYSTEM - In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements is used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications. In various embodiments of the invention, a plurality of independent narrow band colors can be coaxially combined.12-06-2012
20090147530LED Lamp Light Emitting Insert - An LED lamp light emitting insert includes an LED lamp, a mist sprayer, and a circuit. The LED lamp and the mist sprayer are connected to the circuit through a switch. A mist spraying hole is disposed on the circumferential surface of the light emitting insert; a blind hole is disposed at an upper end of the light emitting insert and inserted with a silicone optical fiber; a star body is installed at a distal end of the silicone optical fiber. The light emitting insert is applied to a decoration such as a basket, pot, box, bunch or bouquet of fresh or artificial flowers, or a color ribbon, a church bell, an arch, a flower circle, a flower groove, a pond, and a flower car to provide light emitting and mist spraying effects The light emitting insert can be bent into different shapes to provide a natural and artistic look.06-11-2009
20090168449Light emitting diode unit - Disclosed is a light emitting diode unit, more particularly, a light emitting diode unit including a thermoplastic substrate, a light emitting diode, mounted on one surface of the thermoplastic substrate and a heat sink, directly adhered to the other surface of the thermoplastic substrate. With the present invention, the manufacturing cost and the manufacturing time of the light emitting diode unit can be reduced by allowing the heat sink, discharging the heat generated by the light emitting diode, to be directly adhered to the substrate on which the light emitting diode is mounted. Also, the heat discharging ability of the light emitting diode unit by using the heat sink directly adhered to the thermoplastic substrate.07-02-2009
20120206933LAMP08-16-2012
20120063160Effiency and quality by applying light extraction means to the collection portion of a linear luminaire - Improved side-light distribution systems are disclosed. In one embodiment, an efficient side-light distribution system includes a LED light source; a light coupler for receiving light from the LED light source at a first end and providing light at a second end to an elongated light pipe, and the elongated light pipe receives light from the LED light source at a first end and transmitting the light towards a second end. The coupler transforms at least the angular distribution of at least 70% of the light from the LED light source into an appropriate angular distribution needed for total internal reflection at a second end within the elongated light pipe. The light coupler includes a light-extraction means between the first and second ends of the light coupler for extracting light out of a side of the light coupler. At least part of the light within the light pipe is extracted out of a side of the light pipe, between the first and second ends of the light pipe, by a light-extraction means.03-15-2012
20120002436Light distribution using tapered waveguides in LED-based tubular lamps as replacements of linear fluorescent lamps - An LED replacement-lamp design concept comprising tapered waveguides to provide uniform and effective light distribution is disclosed. Currently, most LED-based replacement lamps for linear fluorescent lamps (LFLs) place discrete surface mount LEDs directly on a cylindrical base. This produces non-uniform, directional light that cannot illuminate large spaces as effectively as LFLs can. A design of an LED lamp with a semi-circle cross-section is proposed as a replacement for LFLs that get placed against the ceiling or some blocking surface. The flat back side of the proposed lamp is used to place a heat-sink. The design comprises of discrete LED chips or modules arranged on a board, where light from these modules are guided through tapered waveguides to create broad, uniform illumination over the entire curved surface of the lamp cover, which may be either transparent or translucent. The lamp's light is uniformly distributed in many directions, effectively illuminating large spaces.01-05-2012
20120008336Aircraft Lighting System - Described is a novel aircraft lighting system with the potential for achieving increased efficiency, improved thermal management, higher reliability, and longer lifetimes. The proposed approach involves combining solar cells and light-emitting diodes (LEDs), and utilizing the cold temperatures of about −50 degrees centigrade encountered in high-altitude (12,000 m) flight to improve thermal management and efficiency in both components.01-12-2012
20090016075SEMICONDUCTOR LIGHTING IN CONSOLE SYSTEM FOR ILLUMINATING BIOLOGICAL TISSUES - The present disclosure is directed to illumination techniques that include the use of one or more sets of Light Emitting Diodes or LEDs as light sources in a console/module system. The LED light sources can be utilized to produce a light beams with a specified/combination of intensity and spectrum. Of course, embodiments according to the present disclosure are not limited to one intensity/spectrum but multiple combinations of intensity and spectrum can be implemented. Such systems/methods can be implemented with various optical elements including filter, lenses, mirrors, and/or optical fibers. The system is controlled by voice activation, touch screen, footswitch or wireless communication. The LEDs might also be pulsed as a driving system. The optical fiber cable is tethered to the control.01-15-2009
20120014126LIGHTING ELEMENT FOR HOMOGENOUS APPEARANCE - The invention is related to a lighting element for a homogenous light appearance used in automotive devices. The lighting element has a light guide structure illuminated by a LED that feeds light into the light guide at the edge of the light guide. The diffuser pane forms a diffuser layer on the light guide surface and light guide and diffuser layer consist of plastic material and are in integrally moulded together in a 2-K moulding process.01-19-2012
20120026750CONTROLLED FLARING LIGHT TRANSMISSION DEVICE - Various exemplary embodiments relate to a light transmission device for transmitting light from at least one light source to an illuminated surface. The device may include at least one light entrance surface that allows entrance of light from the at least one light source; a light emitting surface with an area greater than the total area of the at least one light entrance surface; at least one light pipe portion extending from the at least one light entrance surface toward the illuminated surface wherein the light pipe portion internally reflects the light toward the illuminated surface; and a flared diffusion portion between the at least one light pipe portion and the light emitting surface wherein the diffusion portion internally reflects the light towards the light emitting surface. The device may be a solid piece of plastic. The light pipe portions may be curved to bend light toward the illuminated surface.02-02-2012
20120127748LIGHT-CONCENTRATING DEVICE USING MULTI-OPTIC CABLES - Disclosed is a light-concentrating device using multiple optical-cables in which beams of light output from a plurality of light sources are combined into one beam of light and condensed so that a focal point is formed at a desired position, to secure necessary illumination intensity at a desired remote position from the light sources, in which a focal angle of a condenser lens is adjusted so that the device exhibits a desired illumination intensity and/or desired light distribution property at a place distant from the light sources by a desired distance, and, hence, in which the device may be widely used, for example, to light a museum, swimming pool, building outer wall or building floor or bridge, or as a lighting device for a semiconductor manufacturing process or surgical operation, etc. To this end, the light-concentrating device using the multiple optical-cables includes a body, an LED module, a plurality of multi-optical-fibers, an optical-cable adaptor, an illumination intensity optical-cable and a condenser lens adjustment unit.05-24-2012
20120120676LIGHTING ASSEMBLY WITH ASYMMETRICAL LIGHT RAY ANGLE DISTRIBUTION - A lighting assembly that efficiently collects and accurately directs light with a defined asymmetrical light ray angle distribution onto a nearby target surface. The light with the asymmetrical light ray angle distribution illuminates the target surface with a defined illumination profile. In theatrical and architectural lighting, the defined illumination profile is an even illumination profile on a nearly vertical surface. In street lighting, the defined illumination profile is an even illumination profile on a horizontal surface. The lighting assembly includes an LED and a solid reflector optic having a reflective surface shaped to reflect light from the LED in a way that produces the asymmetrical light ray angle distribution at least in part.05-17-2012
20100172149LIGHT DISTRIBUTION USING A LIGHT EMITTING DIODE ASSEMBLY - A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One LED lighting unit includes a tubular housing and a plurality of LED assemblies mounted about a circumference of the tubular housing. LEDs face inward from a mounting surface that is angled offset of the tube. Alternatively, at least one LED can be oriented to emit light parallel to a tangent of the housing into a light pipe that curves inside at least a portion of the tubular housing.07-08-2010
20110103088MULTI-MODE LIGHTING APPARATUS - A multi-mode lighting system includes a collector unit having a base including a cavity and a transparent or translucent cover mounted on the base. The system further includes a lighting module having a base, a transparent or translucent cover and a photovoltaic element mounted therein. A plurality of fiber optic filaments extend from the collector to the lighting module to transmit radiation from first ends of the fiber optic filaments to second ends of the fiber optic elements. The first ends of the fiber optic filaments are disposed in an array in the collector unit to receive radiation and second ends are disposed in an array in the lighting module to emit radiation received by the first ends of the fiber optic filaments. Radiation transmitted by the fiber optic filaments illuminates an area external to the lighting module and impinges the photovoltaic element to generate electricity.05-05-2011
20120250345LIGHTING UNIT HAVING LIGHT GUIDE(S) INSERTED BEWTEEN A REFLECTOR AND A SCREEN - The invention relates to a dedicated lighting unit (D) which includes: i) at least one light guide (GL) comprising two opposing ends, at least one of which is coupled with a light source (SL); ii) a reflector (RL) having at least one concave section and intended for being placed opposite a rear portion of the light guide (GL) in order to reflect the guided light from the light source (SL) towards a front portion (PV) of the light guide (GL); and iii) a screen (EC) having at least one transparent central portion (PC) intended for being placed opposite at least one portion of the front portion (PV) of the light guide (GL) in order to be illuminated by the light transferred towards the outside and thus to induce a style effect and/or a three-dimensional effect.10-04-2012
20120163013 Elongated LED Lighting Arrangement - An elongated LED lighting arrangement comprises an elongated light pipe with homogeneous optical material between first and second ends. In an exemplary embodiment, an LED provides blue light to the light pipe via a first dichroic mirror tuned to pass blue light. Down-converting means on sidewall of the light pipe, tuned to receive blue light, absorbs blue light from the LED and to emit lower-energy light outside of the light pipe at respectively higher wavelengths. Light-extracting means on the sidewall extract from the light pipe some blue light without changing the wavelengths of the foregoing light. Light from the down-converting means and the light-extracting means are combined to provide a composite color. The first dichroic mirror receives some light emitted by the down-converting means and reflects back into the light pipe more than 80 percent of the light received by the mirror.06-28-2012
20120163012LIGHT GUIDE AND ELECTRONIC DRIVE HAVING SAME - An electronic device includes a chassis, a circuit board, and a light guide. The chassis includes a rear panel defining an opening. The circuit board is installed in the chassis. A connector is mounted to a rear end of the circuit board aligning with the opening. Two spaced light emitting diodes are mounted at a rear end of the connector. The light guide includes a connecting plate mounted to an outer side of the rear panel, and two light guiding posts extending from a bottom of the connecting plate. Front ends of the light guiding posts extend through the opening of the rear panel and align with the light emitting diodes of the connector, to transmit light generated by the light emitting diodes rearwards and upwards.06-28-2012
20120134170TUBULAR SKYLIGHT - A tubular skylight, comprising a tubular body (05-31-2012
20120134169LIGHT EMITTING DIODE LIGHT BOX AND LIGHTING ASSEMBLY USING THE SAME - A light emitting diode (LED) light box including a housing, a first LED module and a light guiding block is provided. The housing has a first hole. The first LED module is disposed inside the housing. The light guiding block is disposed inside the housing and located in front of the first LED module and opposite to the first hole. The first light emitted by the first LED module enters and proceeds in the light guiding block and then passes through the first hole.05-31-2012
20120170304CONNECTOR - A connector adapted for use in an illumination system comprising at least one optical element, such as an optical fibre. is disclosed. The connector comprises a housing dimensioned so that internally it retains at least one end portion of at least one optical element, and externally substantially follows the shape of the end portion(s) of the optical element(s). This forms a join between the ends of the optical element(s). A light source is also contained within the housing and positioned so as to illuminate the end portions of at least one optical element. Electrical connection means adapted to connect the light source to an external power supply are provided. The electrical connection means being moveable relative to the housing. The electrical connection means may be carried by a flexible substrate, or may be formed by slideable contacts within a light guide rail.07-05-2012
20120170302LED-BASED DENTAL EXAM LAMP WITH VARIABLE CHROMATICITY - An electrically powered light source including a light emitting diode (LED) having variable chromaticity, which is adapted for use in a dental operatory. A dental operatory lamp includes a thermally conductive housing having a front directed toward the operating area and a rear away from the operating area; a generally elliptical reflector located on the rear of the thermally conductive housing; at least one heat pipe; a plurality of color LEDs projecting light toward the elliptical reflector, the plurality of LEDs being in thermal contact with the at least one heat pipe; and an optical light guide for combining light from said LEDs. Another embodiment of the lamp includes at least two user selectable light spectra, one of said spectra providing white light with color temperature in the range 4000° K-6000° K and one spectra having reduced output in the wavelength range 400-500 nm.07-05-2012
20110199781LIGHT PROJECTOR AND SENSOR - A light projector has a light emitting device having a light emitting surface, an optical fiber having an incident end-face to which light emitted from the light emitting surface enters, and a lens arranged between the light emitting surface of the light emitting device and the incident end-face of the optical fiber. The light emitting device, the optical fiber and the lens are arranged on one optical axis. The optical fiber includes a core region as a region including a single core of uniform refractive index or a region collectively encompassing a plurality of cores having uniform refractive index. The lens converts diffused light emitted from the light emitting surface to diffused light that widens more moderately.08-18-2011
20120075881COMPUTER ENCLOSURE - A computer enclosure includes a front panel, a switch module, and a light guide module. The switch module is attached to the front panel and includes a mounting bracket, a switch member attached to the mounting bracket, and a light emitting diode (LED) attached to the mounting bracket. The light guide module is attached to the front panel and has a light guide slot and a first transparent board covering the light guide slot. The LED is configured to generate light that enters in the light guide slot and propagates out from the first transparent board.03-29-2012
20120188787SYSTEM FOR ILLUMINATING A VEHICLE INTERIOR ASSEMBLY - A vehicle interior assembly includes a light pipe that is concealed by at least one element of the assembly and is configured to illuminate a recess disposed adjacent to a display.07-26-2012
20090016074Semiconductor light engine using glass light pipes - A light engine for use in systems such as automotive lighting systems employs two or more semiconductor light sources, such as LEDs. Light emitted from the light sources is captured by light pipes which are mounted such that the light capturing surface of the light pipes are properly positioned, with respect to the semiconductor light sources. The light pipes transfer substantially all of the light captured from the semiconductor light sources to light emitting surfaces of the light pipes which can be appropriately located adjacent the output optics of the lighting system. The light engine can be easily assembled as the light pipes are in modules including a carrier member that can be mounted to a positioning member which also includes apertures to position the light capture surfaces of the light pipes at a known position with respect to the semiconductor light sources.01-15-2009
20110122647METHOD TO ASSEMBLY A TURN SIGNAL INDICATOR MODULE AND TURN SIGNAL INDICATOR SUB-MODULE - The invention is related to a method for assembly a turn signal indicator module mounted into a rear view mirror comprising a housing. A LED, a light guide and a lens of the turn signal indicator module are mounted in steps as:05-26-2011
20100238683FLEXIBLE LIGHT-EMITTING APPARATUS - A flexible light-emitting apparatus including a side light-emitting flexible light guide rod, two light emitting diodes, and two lenses is provided. The side light-emitting flexible light guide rod has a first end, a second end opposite to the first end, and a light-emitting surface connecting the first and the second ends. The LEDs are respectively disposed beside the first end and the second end and adapted for emitting light beams toward the side light-emitting flexible light guide rod, respectively. One of the lenses is located between the first end and the LED disposed beside the first end, and the other lens is located between the second end and the LED disposed beside the second end. Each of the light beams enters the side light-emitting flexible light guide rod through the corresponding lens and is transmitted to the outside of the side light-emitting flexible light guide rod through the light-emitting surface.09-23-2010
20100238682HeadLyte safety device - The “HeadLyte” Safety Device is intended to be attached or embedded within a helmet worn by a bicyclist, or, worn around the head of a walker or jogger. The “HeadLyte” is comprised of a band that is populated with light emitting devices providing 360 degrees of illumination. The purpose of this illumination is to alert other individuals and/or vehicles as to the presence and direction of travel of the person wearing the “HeadLyte”, The light emitting devices are connected to a power source and a microcontroller that enables them to flash in a variety of patterns. The light emitting devices may also utilize color to indicate direction of color. The increased visibility provided by the light emitting devices, combined with the location of the “HeadLyte” as it is worn at the highest possible point on the walker, jogger or bicyclist will further enhance the visibility of the wearer to others.09-23-2010
20080298081Side-Emitting LED Package with Improved Heat Dissipation - A light source and a method for making the same are disclosed. The light source includes a lead frame, an integrated circuit chip and a body. The lead frame has first and second sections. The first section includes a lateral portion, a chip mounting area and a first extension. The integrated circuit chip is bonded to the first section in the chip mounting area and is in thermal contact with the chip mounting area. The body has top, bottom, and side surfaces. The first extension is bent to provide a heat path from the chip mounting area to the side surface, a surface of the first extension that is not in contact with the side surface forming a first planar bonding surface. The heat path has less thermal resistance than a heat path through the lateral portion.12-04-2008
20110235361DEVICE AND METHOD FOR DIFFUSED LIGHTING FOR VEHICLE INTERIORS - This invention relates to a device for diffused lighting for vehicle interiors that includes one or more light sources and that is located outside the field of vision of the driver of the vehicle. Drivers, especially following refractive surgery, manifest debilitating effects and symptoms of dazzling. The mioisis caused by the diffused light of this invention improves the driver's visual performance, in terms of quality of vision.09-29-2011
20110235360LIGHT SOURCE DEVICE FOR SUPPLYING LIGHT TO FIBER OPTIC ILLUMINATION SYSTEM - A light source device for a fiber optic illumination system comprises a solid-state light emitting element having an emission surface shaped in quadrate, a light collection lens system with a positive power comprising at least a plano-convex lens, and a reflection member having a cylindrical reflection surface therein, all of which are arranged in this order coaxially with one another along a principal axis passing a center of the light emitting element, wherein the plano-convex lens is placed with a plane surface thereof directly facing and located at a space distance apart from the emission surface so as to form a virtual image of the emission surface.09-29-2011
20130016519LIGHT SOURCE MODULEAANM KUO; Heng-ShengAACI New Taipei CityAACO TWAAGP KUO; Heng-Sheng New Taipei City TW - A light source module includes a casing, a light-guiding rod, a light-emitting assembly and a heat-dissipating reflective shroud. The casing has a chamber and a transparent opening in communication with the chamber. The light-guiding rod has a light-exiting surface and a light-transmitting surface opposite to the light-exiting surface. The light-guiding rod is disposed in the chamber with the light-exiting surface facing the transparent opening. The light-emitting assembly is provided on one side of the light-guiding rod to emit light toward the interior of the light-guiding rod. The heat-dissipating reflective shroud is assembled with the casing to cover the light-transmitting surface of the light-guiding rod. The interior of the heat-dissipating reflective shroud has a reflective surface for reflecting the light passing through the light-transmitting surface back toward the light-exiting surface to exit the transparent opening. The heat-dissipating reflective shroud has double effects of heat dissipation and light reflection.01-17-2013
20130170245LIGHTING DEVICE - A lighting device improves light distribution uniformity. When a light emitting diode (LED) package module is applied to a straight-tube fluorescent lamp, characteristics of a circular surface light source with the LED may be efficiently embodied by varying a refractive index of a light guide member based on positions of the light guide member.07-04-2013
20080247189Imaging device illumination system - An imaging device illumination system comprises first and second elongate light guides configured to emit light toward an object to be imaged, each of the first and second light guides having an input window at one end thereof for receiving light from a light source and an end face at an opposite end thereof, wherein the input window of the first light guide is disposed proximate to the end face of the second light guide.10-09-2008
20130176748MODULARIZED SERVER - A modularized illuminating device includes a retaining base, a lighting module, and a light guide element. The retaining base includes an elastic positioning unit. The lighting module is removably disposed on the retaining base, and has a sliding groove and a retaining groove. The light guide element is disposed on the retaining base and faces to the lighting module. When the lighting module is installed to the retaining base along a plugging direction, the elastic positioning unit slides from the sliding groove to the retaining groove to retain the lighting module in the retaining base.07-11-2013
20130094238LED TUBULAR LAMP - An LED tubular lamp includes a shell, a base plate and a lamp shade. The shell is made of one or more shell sections respectively possessing two or more convection holes to carry out ventilation. The shell section has two placing grooves for depositing the base plate and two combining grooves for combining with the lamp shade. The base plate has two sides fitting in the two placing grooves and an upper surface coated with a heat conducting paint, loaded with the LEDs as a light source. So the heat may be absorbed by the heat conducting paint and transmitted through the convection holes into the air. The lamp shade made integral has two combining members to combine with the combining grooves of the shell. The light of the LEDs shines through the lamp shade. The lamp disperses the heat quickly to prolong the service life of the LEDs.04-18-2013
20130114286METHOD AND ARRANGEMENT FOR COUPLING IN RADIATION EMITTED BY LEDS - A method and arrangement for transmitting radiation emitted by LEDs operated in pulsed operation via at least one optical waveguide, wherein a first optical waveguide having first and second coupling surfaces is assigned to each LED, the first optical waveguides are in each case aligned, by their first coupling surfaces, with an assigned stationary LED, the second coupling surfaces are arranged on a closed path and a coupling surface of a second optical waveguide is assigned to the second coupling surfaces. In order that a high light power can be coupled into the second optical waveguide by means of the LEDs, it is provided that the second optical waveguide, in accordance with the clocking of the switched-on LEDs, can be aligned with the second coupling surface of a first optical waveguide from at least one switched-on LED.05-09-2013
20130094239LIGHT GUIDE COLUMN, LIGHT EMITTING STRUCTURE AND ILLUMINATION DEVICE USING THE SAME - A light guide column is disposed on the top of a light source. The light guide column includes a column body, a cavity, a reflection structure and a micro-structure. The column body has a first end and a second end opposite to the first end. The cavity on the first end is for gathering the light source. The reflection structure is on the second end, when light emitted from the light source, a portion of the light reflected by the reflection structure to emit toward a lateral surface of the column body and others transmitted to the front side direction. The micro-structure is formed on the lateral surface of the column body can facilitate the emitting light from the column body uniformly.04-18-2013
20110267835LIGHT SOURCE - The present invention relates to a light emitting diode, LED, light source that may be arranged for retrofitting into a luminaire employing an incandescent light source. The light source comprises a light guide into which light from one or more LEDs in a light unit arranged at one end of the light guide is injected, and a reflector having a reflecting surface arranged at the other end of the light guide and facing towards the light guide capable of reflecting light incident on the reflecting surface. According to the present invention, the reflector comprises at least one transmitting portion being arranged such that at least a portion of light incident on the at least one transmitting portion is transmitted through the reflector, for example a through hole extending along an axis, allowing for an almost viewing angle independent light intensity of the light source.11-03-2011
20110273900OPTICAL ELEMENT AND LIGHT SOURCE COMPRISING THE SAME - The present invention relates to an optical element including a light guide, into which light from one or more light-emitting diodes in a light unit arranged at one end of the light guide is injected, and a reflector arranged at the other end of the light guide capable of reflecting light incident on the reflector. The light guide further includes a prismatic surface comprising a plurality of prisms, each prism being arranged at an angle to an axial direction of the light guide, for guiding the light emitted from the light unit towards the output end of the light guide. The present invention also relates to a light source including an optical element according to the present invention, the light source being arranged for retrofitting into a luminaire employing an incandescent light source.11-10-2011
20110211364Rotating Fiber Optic Sculpture - A sculpted decorative object, such as a Christmas tree, is shown which has a motor driven vertical drive shaft and three rotating sections. Rotation of the vertical drive shaft and an associated drive gear causes relative rotation of a driven gear and, in turn, a respective rotating section of the object about the axis of the drive shaft. A fiber optic bundle is mounted within each rotating section of the object. Each bundle contains several fiber optic strands which terminate at a LED light source at one end and at a light emitting element at an opposite end. Each LED light source is supplied from a common electrical source by means of a series of wiper contacts and rotatable contact rings carried by respective stationary and rotating portions of the sculpted object.09-01-2011
20110222308LIGHT GUIDE FOR COUPLING DIFFERENTLY SHAPED LIGHT SOURCE AND RECEIVER - A light guide for interfacing between a light source having a light emitting surface with a first shape and a light receiver with a light receiving surface of a second shape. The light guide has a light emitting end having a first shape of substantially the same size as the first shape of the light emitting surface. A light receiving end has a second shape of substantially the same size as the second shape of the light receiving surface. A free form body between the light emitting end and the light receiving end causes a transition between the first and second shape.09-15-2011
20110228551LIGHT GUIDE, PATTERNED LIGHT EMITTING DIODE DEVICE, ILLUMINATION SYSTEM AND METHOD OF GENERATING THE LIGHT GUIDE OR PATTERNED LIGHT EMITTING DIODE DEVICE - The invention relates to a light guide (09-22-2011
20120275179LUMINESCENT BICYCLE - A frame-supported vehicle, such as a bicycle or the like, has at least one frame component made of a light diffusing or fluorescent translucent or transparent material to form a leaky light pipe, and at least one light source in light communication with the frame component, whereby light propagates within the frame and is visible from outside the frame by diffusion or fluorescence or a combination thereof. The bicycle is highly visible at night, and may carry logos or other indicia that are enhanced by the background illumination, which may be redirected out of the tube.11-01-2012
20130155716LIGHTING FIXTURE - A light fixture including at least one light emitting device and a light-guiding pillar is provided. The light emitting device is adapted to emit a light beam. The light-guiding pillar has a light incident surface, an end surface opposite to the light incident surface, and a peripheral surface connecting the light incident surface to the end surface. The peripheral surface includes a smooth curved surface, a fillister surface connected to the smooth curved surface, and a reflective surface connected to the fillister surface. The light emitting device is disposed beside the light incident surface. The fillister surface is disposed at two opposite sides of the reflective surface. Extending directions of a plurality of fillisters on the fillister surface are substantially parallel to an extending direction of the light-guiding pillar.06-20-2013
20120281428REFLECTIVE NANOFIBER LIGHTING DEVICES - A fiber-based reflective lighting device and a lighting device. The fiber-based reflective lighting device includes a source configured to generate a primary light, a mat of reflective fibers which diffusely reflects light upon illumination with at least the primary light, and a light exit configured to emanate the reflected light. The lighting device includes a housing, a source configured to generate primary light and direct the primary light into the housing, a reflective mat of fibers disposed inside the housing at a position to reflect the primary light, and a light exit in the housing configured to emanate the reflected light from the housing.11-08-2012
20120281427COLLIMATED ILLUMINATION USING LIGHT PIPES - A system includes multiple light emitting diodes (LEDs) and a light pipe configured to mix light from the LEDs and produce collimated light. The light pipe includes multiple reflective optical devices configured to reflect the collimated light at different angles. The light pipe also includes multiple outlet optical devices configured to selectively control exit of the reflected collimated light from the light pipe. The reflected collimated light has one or more controllable spectral characteristics and/or one or more controllable geometries of illumination.11-08-2012
20130182455DISPLAY DEVICE - Disclosed is a display device including a plurality of channels for forming a specific pattern, in which each of the channels includes: a light source module comprising one or more light sources for generating optical signals having different wavelengths; a driving module for controlling on/off or strength of the optical signal generated in the light source module; an optical waveguide for transferring the optical signal generated in the light source module to an outside without a loss of the optical signal; and a scattering pattern for scattering the optical signal transferred through the optical waveguide and displaying the scattered optical signal to the outside.07-18-2013
20130188384SOLID STATE CONTINUOUS WHITE LIGHT SOURCE - A solid state illumination system is provided as a replacement for conventional arc light, metal halide and Xenon white-light sources for applications in life sciences including, microscopy, fluorescence microscopy, and endoscopy. The solid state illumination system generates high quality white light output from LED light sources. The white light output is continuous in the visible spectrum from 380 nm to 650 nm and is suitable for imaging all the most common fluorophores and fluorescent proteins. In embodiments, an LED light pipe engine is used to generate a portion of the spectral content of the white light output. In alternative embodiments the solid state illumination system produces light output of a selectable color.07-25-2013
20130188385COUPLING-IN APPARATUS FOR COUPLING LIGHT FROM A LIGHT-EMITTING DIODE INTO A FIBER ENTRY END AND LIGHT-SOURCE ARRANGEMENT FITTED THEREWITH - A coupling-in apparatus is provided for coupling light from a light-emitting diode (07-25-2013
20130188387LED LIGHTING SYSTEM COMPRISING AN OPTICAL SYSTEM SUITABLE FOR PROVIDING A LIGHT BEAM - An optical system having a light guide (07-25-2013
20120020108LED LIGHTING DEVICE - An LED lighting device includes at least one circuit board, an encapsulation, a number of LED light sources, and a light guiding member. The LED light sources are distributed on the circuit board. The encapsulation is arranged around the light guiding member. The light guiding member includes two opposite surfaces, at least one of which defines a number of accentuated portions. At least one end of the light guiding member includes a light incident surface opposing the LED light sources. After entering the light guiding member from the light incident surface, the light beams from the LED light sources are reflected between the opposite surfaces of the light guiding member. The light beams reaching the accentuated portions are diffused and exit the light guiding member, and are finally transmitted to outside through the encapsulation.01-26-2012
20120020107LIGHTING SYSTEM AND LIGHT INJECTION COUPLER THEREFOR - A lighting system has one or more light guides capable of guiding light, each comprising a core and two optically smooth faces. A cavity adjacent to two of the optically smooth faces has an opening and a reflective-transmissive surface opposite the opening. A cover having a light source is proximate to and occludes the opening. A major portion of any light emitted from the light source is reflected by the reflective-transmissive surface of the cavity and is injected into the light guides, and a minor portion of any light emitted by the light source is transmitted through the reflective-transmissive surfaces of the cavity and emitted from the lighting system. A light injection coupler is also disclosed that has an optically transmissive housing and suitable for use to couple ends of at least one light guide thereby making a lighting system.01-26-2012
20130194820REDUCED CONTRAST LED LIGHTING SYSTEM - A reduced contrast LED lighting system is disclosed. A plurality optical elements in a fixture is arranged to produce a light pattern with reduced visible contrast between the various areas where light can be perceived leaving the fixture. In some embodiments of the invention the LED light source is disposed at the reflector, and in some such embodiments a partially reflective lens plate is disposed opposite the LED light source. In some embodiments the LED light source is placed opposite the reflector. The lighting system can include a lens arrangement with a partially reflective lens plate connected to a heatsink, or two lens plates adjacent to the LED light source and the heatsink. The fixture can include a plurality of light pipes or slots to direct light into spaces between the lens plates and the heatsink.08-01-2013
20090219732LED WITH LIGHT PIPE ASSEMBLY - An LED light pipe assembly includes a light pipe; a heat sink portion; an LED mounted on a substrate in optical communication with the light pipe; and a carrier portion for receiving the light pipe and providing electrical interconnections to the LED. The heat sink portion includes a plurality of fins and a plurality of hollow frame portions configured to dissipate heat generated by the light pipe assembly. Attachment features are provided on the heat sink for attaching the heat sink to the carrier portion. The heat sink portion also includes a hollow cavity for receiving the substrate. The carrier portion is insertable into the cavity in abutting relation with the substrate to secure the substrate in contact against the heat sink.09-03-2009
20120300488Method and System for Managing Light from a Light Emitting Diode - A light source, for example a light emitting diode, can emit light and have an associated optical axis. The source can be deployed in applications where it is desirable to have illumination biased laterally relative to the optical axis, such as in a street luminaire where directing light towards a street is beneficial. The source can be coupled to an optic that comprises an inner surface facing the source and an outer surface that is opposite the inner surface. The inner surface can comprise a refractive surface that receives light headed away from the optical axis of the light source, for example opposite the street. The refractive surface can form the received light into a beam. The outer surface of the optic can reflect the beam back across the optical axis, for example so that light headed away from the street is redirected towards the street.11-29-2012
20120087144LED ILLUMINATION DEVICE - The invention discloses a LED illumination device comprising a LED light source and a light guide device. The LED light source provides a light. The light guide device comprises a light-receiving surface, a light-emitting surface, and a body. The light-receiving surface receives the light from the light source. The body has a light channel for guiding the light toward the light-emitting surface. In addition, the body comprises at least one light splitter, and a part of the light within the light channel penetrates the body through the light splitter. Specially, the light guide device with the light splitter can reduce the amount of light emitting devices. The illumination system can be conspicuous at night.04-12-2012
20130208498ILLUMINATION CONVERTER - The disclosure generally relates to illumination converters that are capable of converting light from one geometrical format to another. In particular, the described illumination converters are capable of converting a circular source such as an LED to a linear source useful in an edgelit waveguide, which can be used in a backlight for a display.08-15-2013
20130208497INFUSION LINE IDENTIFICATION LIGHTING SYSTEM - An IV line identification system enables ready identification of an IV line and its associated fluid source and output from other IV lines with their fluid sources and outputs. The IV line identification system includes lights that are coupled to a specific IV line. The lights can identify specific locations on the IV line, such as an entry end by an IV bag and an output end by a needle or port associated with a patient. The lights can also identify the portions of the IV line that enter and exit a pump. The lights can also be selectively turned on when a specific IV line needs to be identified, and turned off when the IV line does not need to be individually identified. The lights may be colored to distinguish between the lights associated with another IV line.08-15-2013
20130044505ILLUMINATION APPARATUS - An illumination apparatus includes a light-guiding pillar, a sleeve, and a point light source. The light-guiding pillar has a light-emitting surface, a bottom surface, a light incident surface, and a reflection bar disposed on the bottom surface. An extension direction of the reflection bar is parallel to an extension direction of the light-guiding pillar. The light incident surface of the light-guiding pillar is disposed in the sleeve. The sleeve includes a reflection portion surrounding the light incident surface and extending along a direction away from the light-guiding pillar. An internal diameter of the reflection portion decreases in a direction away from the light incident surface. The portion of the light beams emitted by the point light source are reflected to the light incident surface by an inner surface of the reflection portion and enter the light-guiding pillar.02-21-2013
20090201698Illumination device - An illumination device is specified which has a light source (08-13-2009
20120163014OPTICAL ELEMENT - It is disclosed an optical element (06-28-2012
20100020565Achromatic Homogenizer and Collimator for LEDs - A lens arrangement with an achromatic homogenizer and collimator for multiple LEDs. The lens arrangement combines the hemispherical emittance profiles from one or more LEDS into a collimated beam without chromatic aberration. The lens arrangement has one or more LEDs, a homogenizer, a solid lightpipe, an internal parabolic reflector, a retroreflector, and a refractor. The emittance profiles of the LEDs are distributed evenly over space and angle by multiple reflections inside a diffusely reflecting cavity of the homogenizer. The internal reflector has a numerical aperture of 1.0, which defines a hemispherical solid angle of collection within air. The retroreflector directs rays away from the LEDs. The retroreflection permits space for the electronics of high radiance LEDs. The refractor converts the retroreflector rays in a plurality of shapes. The lens is optimally designed for applications with high standards for color mixing, uniformity, and efficient conversion of electrical power into light.01-28-2010
20120170303ILLUMINATION APPARATUS WITH HIGH CONVERSION EFFICIENCY AND METHODS OF FORMING THE SAME - In various embodiments, an illumination apparatus includes a substantially planar waveguide, a plurality of light sources embedded within the in-coupling region of the waveguide, and a film disposed over the out-coupling region of the waveguide. The film has a thickness less than approximately 100 μm and comprises or consists essentially of a photoluminescent material. The photoluminescent material converts a portion of light emitted by at least one of the light sources to a different wavelength. A surface of the out-coupling region has an average reflectivity of greater than approximately 90%. Light emitted by the light sources mixes with light converted by the photoluminescent material to form substantially white light, and the conversion efficiency of the illumination apparatus is greater than approximately 70%.07-05-2012
20110194304POROUS AND NON-POROUS NANOSTRUCTURES AND APPLICATION THEREOF - A method for producing a fiber membrane of nanofibers that have both smooth and porous surface features. The method includes materials processing using polymer mixes with solvents and melt polymers with additives. The method includes nanomaterial incorporation onto a fiber structure after formation of the fiber structure. The fiber structure can be a part of a nanoparticle carrier material, a nanoparticle disposal medium, a lighting medium, and a catalysis medium.08-11-2011
20100157621LIGHT EMITTING DEVICE WITH LED OPTICAL FIBER COUPLING - An exemplary light emitting device includes light emitting diodes optical fibers, and a light guide body. Each optical fiber includes a light input end and a light output end. Each light emitting diode is optically coupled to the light input end of a corresponding optical fiber. The light guide body includes a light incident surface and a light emitting surface. The light output end of each optical fiber is optically coupled to the light guide body at the light incident surface such that light output from the light output end is capable of emitting from the light guide body through the light emitting surface.06-24-2010
20100073957OPTICAL IRRADIATION DEVICE - An optical irradiation device incorporating a cluster of LEDs arranged so that shaped facets of adjacent LEDs come together to increase the packing density of LEDs in the cluster. A light guide collects light emitted by the LEDs. Two or more light guides and LED clusters may be arranged in series to produce a single light beam. A heat pipe is provided to conduct heat away from the LEDs. The heat pipe may be annular and contain an inner storage space for batteries or the like.03-25-2010
20100073956HEAT DISSIPATION MODULE WITH LIGHT GUIDING FINS - A heat dissipation module being applied to guide at least one illumination light beam projected from at least one light emitting member, and being applied to release heat energy when projecting the illumination light beam is disclosed in the present invention. The heat dissipation module comprises a heat dissipation base, a plurality of heat dissipating fins, and a plurality of light guiding fins. The heat dissipating fins are integrally extended from the heat dissipation surface for dissipating the heat energy, and the light guiding fins are integrally extended from the arrangement surface for reflecting the illumination light beam and guiding the illumination light beam to be projected along an illumination direction.03-25-2010
20130033888LIGHTING DEVICE - There is provided a lighting device and a method to manufacture such a lighting device. The inventive concept is based on manufacturing a lighting device on an at least partly flexible sheet assembly which is rolled into a tube, such that the light source of the lighting device is arranged within the tube. The flexible sheet assembly is arranged such that the tube provides a light mixing chamber and light exit surface for the lighting device. Thus, the tube shaped lighting device instantly delivers the necessary optical and mechanical properties for easy assembly and the functionality of a light engine.02-07-2013
20110122648HIGH DENSITY DIGITAL SIGNAL CROSS-CONNECT SYSTEM - A telecommunication panel may comprise a chassis configured to receive insertable Digital Signal Cross-connect (DSX) modules and a backplane connected to the chassis. The DSX module is compact to fit into the telecommunication panel. A ratio of the number of the insertable 6-port DSX modules over the backplane surface area at least about 0.37 modules per square inch is achieved. The DSX module may include a printed circuit board and a light emitting diode (LED) light pipe on the printed circuit board to minimize the width of the DSX module. The DSX module may be inserted into the telecommunication panel horizontally or vertically so that the telecommunication panel receives a maximum number of DSX modules.05-26-2011
20090213615LIGHT EMITTING DEVICE HAVING A STRAIGHT-LINE SHAPE - A light emitting device having a straight-line shape is provided with: a pair of first and second electrodes each having a straight-line shape which face each other; and a phosphor layer having a straight-line shape provided so as to be sandwiched between the pair of electrodes, wherein at least one of the pair of first and second electrodes is a transparent electrode, at least one buffer layer is provided so as to be sandwiched between the first or second electrode and the phosphor layer, and the buffer layer makes the height of a potential barrier between the electrode and the phosphor layer which sandwich the buffer layer lower than the height of a Schottky barrier when the electrode and the phosphor layer are brought into direct contact.08-27-2009
20130083555LIGHTUNG MODULE AND ILLUMINANT DECICE HAVING THE SAME - A lighting module includes an illuminant unit, a light guide pillar and a first reflecting member. The illuminant unit has an optical axis and includes at least a LED. The light guide pillar includes a base and a light guide part, the LED disposed on the base, the light guide pillar is extended from the base along the optical axis and an end of the light guide pillar has a top surface. The top surface is concave toward the base and is continuous. The first reflecting member is disposed on the top surface. Wherein a partial light emitted by the illuminant unit is travelling to the first reflecting member through the light guide pillar, the first reflecting member reflects the partial light such that the partial light emits from the light guide part.04-04-2013
20130083554LIGHTING DEVICES AND METHODS FOR PROVIDING COLLIMATED DAYLIGHT AND AUXILIARY LIGHT - Lighting devices and methods for providing collimated daylight and auxiliary light are disclosed. Some embodiments disclosed herein provide a daylighting apparatus including a tube having a sidewall with a reflective interior surface, one or more auxiliary light sources, and a collimator. In some embodiments, the tube is disposed between a transparent cover positioned to receive daylight and a diffuser positioned inside a target area of a building. In certain embodiments, the tube is configured to direct at least a portion of the daylight transmitted through the transparent cover and/or at least a portion of generated auxiliary light towards the collimator and the diffuser.04-04-2013
20120182757LIGHT-GUIDE TYPE ILLUMINATION DEVICE - A light-guide type illumination device includes a heat-dissipating unit, a conductive unit, a light-emitting unit and a light-guiding unit. The heat-dissipating unit includes a heat-dissipating body. The conductive unit and the light-emitting unit are respectively disposed on a first side and a second side of the heat-dissipating body. The light-emitting unit includes at least one light-emitting element electrically connected to the conductive unit for generating light beams. The light-guiding unit includes at least one light-guiding element disposed above the light-emitting unit. The light-guiding element has a light input surface formed on a bottom side thereof for receiving the light beams and an optical surface-treated layer formed on at least one lateral surface thereof. Hence, the instant disclosure can provide an annular 360-degree light-emitting range by matching the light-emitting unit and the light-guiding unit, thus any type of conventional energy-saving bulb can be replaced by the illumination device.07-19-2012
20120182755ILLUMINATING SYSTEM OF FLEXIBLE SHAPE - Disclosed is an illuminating system of flexible shape and comprising at least one LED disposed on a flexible carrier material, an optic being provided that permits uniform, directed and/or glare-free light emission.07-19-2012
20100265732Light tube with led light source - A light tube with an LED light source includes a casing, a control circuit board, an LED circuit board inside the casing, and LEDs coupled to the LED circuit board. Input and output ports of the control circuit board are connected to pins of the casing via an input line and to the LED circuit board via an output line, respectively. A power module and a control module are provided on the control circuit board and at input and output ends thereof, respectively. The power module includes first and second filter capacitors and a rectifier bridge circuit. The first and second filter capacitors straddle and connect with input and output ends of the rectifier bridge circuit, respectively. The output end of the rectifier bridge circuit connects with the control module. Thereby, high-frequency AC from an electronic ballast or low-frequency AC is converted to DC for the LEDs.10-21-2010
20100097821LIGHT EMITTING DIODE-BASED LAMP HAVING A VOLUME SCATTERING ELEMENT - A lamp having a candle-like appearance and using one or more light-emitting diodes (LEDs) as its light source is presented. The candle-like appearance arises because light is emitted from only a small volume at or near the center of the bulb. The heat sink and control electronics are located outside the bulb of the lamp. Inside the bulb is a set of secondary optics that guide the light from one or more LEDs to an emission point at a prescribed location in the interior of the bulb. The secondary optics include a light pipe that guides light away from the LED chip, and a volume scattering element that receives the light from the light pipe and scatters it into various directions. The volume scattering element is made from a transparent base material, and includes transparent particles of a predetermined size and refractive index. Because the lamp is typically used in an overhead position, such as in a hanging chandelier, the density of particles in the volume scattering element, the particle size and the particle refractive index are chosen to produce a scattering pattern that directs more light downward (toward the base of the bulb) than upward, while maintaining a reasonable efficiency (fraction of produced light that successfully exits the lamp). Simulation results are presented.04-22-2010
20100097820METHOD AND APPARATUS FOR DIRECTING LIGHT AROUND AN OBSTACLE USING AN OPTICAL WAVEGUIDE FOR UNIFORM LIGHTING OF A CYLINDRICAL CAVITY - A method and apparatus for directing light from a light source along a trajectory to avoid particular obstacles and provide uniform illumination of a surface having a particular geometry such as a cylindrical geometry is described. The surface may enclose components such as PCBs that provide particular functionality that operate as obstacles to a light beam.04-22-2010
20120218774Led light bulb - The LED bulb includes a body in the shape of a standard domestic light bulb and has a base which can be screwed into a standard AC receptacle. The bulb comprises a plurality of cooling fins made of aluminum and cast to form the outer surface of the light bulb. A central opening extends axially through the bulb with the interior edges of the cooling fins forming the interior periphery of the opening. The bulb thus provides two cooling air flow paths. A heat sink for supporting a circuit board carrying the LEDs is cast together with the fins. The bulb may be connected in any orientation and still retain its same cooling characteristics. A lens faceted circular surface also having a central opening disperses the photons in an overlapping manner to provide a uniform alighted area even though the bulb has a central opening.08-30-2012
20090040782LED 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 portion secures the light pipe and provides a rotatable function for the light pipe. The support portion further includes a clamp and a base member. A clamp has two second fastening portions at opposite sides thereof. The second fastening portions engage with the first fastening portions. The clamp further includes a strip hollow slot. A base member includes a pair of positioning portions for holding an outer wall of the clamp, wherein a fastener is led through the strip hollow slot and fastened on the base member. The clamp slides relative to the base member along the strip hollow slot such that the light pipe rotates relative to the base member.02-12-2009
20090091945Coloured Polyurethane Light Guides - An optical illumination device (04-09-2009
20110013415DISCRETE LIGHT GUIDE-BASED PLANAR ILLUMINATION AREA - In one aspect, a planar illumination area includes two light-guide elements, each with an out-coupling region. At least a portion of each out-coupling region overlaps with at least a portion of the other. The overlapping region emits a substantially uniform light output power.01-20-2011
20130063963LED TRACK LIGHTING HAVING AN ILLUMINATED TRACK - An LED track-lighting system includes an LED for emitting light. A light-transmitting element captures light emitted by the LED light and emits it over at least a portion of the track.03-14-2013
20130063962OPTICAL ELEMENT AND ILLUMINANT DEVICE USING THE SAME - An optical element is assembled to a light emitting diode (LED) to form an illuminative light source. The optical element includes a transparent main body having a light guiding pillar and an extending part. The light guiding pillar has a top surface and a bottom surface having a recess. The extending part is extended from the circumference of the top surface and an end of the extending part has at least a light-emitting surface. Wherein the LED is disposed on the recess and emits light to the optical element. The extending part guides the light and enlarges the light-emitting angle.03-14-2013
20130063964Illumination Apparatus with High Conversion Efficiency and Methods of Forming the Same - In various embodiments, an illumination apparatus includes a substantially planar waveguide or a light box, at least one light source emitting light therein, a layer of photoluminescent material for converting a portion of the light to a different wavelength, a reflector for reflecting light back-scattered from the photoluminescent material, and an optically active layer for separating light interacting with the photoluminescent material from light propagating within the waveguide or light box.03-14-2013
20110205752Lighting Device - A lighting device is described. In accordance with one implementation, a lighting device comprises a housing having a top wall operably connected to a bottom wall. The housing has a front and a rear, and a cover is operably connected to the rear of the housing. At least one mechanism is located on at least one of the walls of the housing for operably connecting the lighting device to a second lighting device. A mechanism for holding at least one light-emitting diode is operably connected to the front of the housing and a power source. At least one light-emitting diode is installed on the mechanism for holding the at least one light-emitting diode.08-25-2011
20090237956LIGHT EMITTING DIODE ASSEMBLY - An LED assembly (09-24-2009
20090231878ILLUMINATION DEVICE COMPRISING A LIGHT SOURCE AND A LIGHT-GUIDE - Proposed is an illumination device (09-17-2009
20130163273LED ARRAY LIGHTING ASSEMBLY - A lighting assembly including a plurality of LED light sources and a light-guide assembly with a plurality of light guides each having a proximal end terminating in a recess and a distal end, a mating cap coupled to the proximal end of the plurality of light guides and aligning each recess with a corresponding LED light source in the plurality of LED light sources, and a light-emitting lens with a receiving surface coupled to the distal end of each of the plurality of light guides and able to transfer light emitted from the distal end of each of the plurality of light guides into the light-emitting lens and a curved light-emitting surface opposite the receiving surface, the light-emitting surface able to emit light from within the light-emitting lens, the light within the light emitting lens being a blend of light emitted from two of the plurality of light guides.06-27-2013
20120236586LED LIGHT GUIDE STRUCTURE - A light guide structure using an LED as a light source includes a refracting base, an LED light source module, and an optical fiber tube. The refracting base has a hollow chamber with a wall in a shape without any acute angle, and the LED light source module is fixed onto the refracting base, and the LED light source module includes an LED installed in the hollow chamber. One end of the optical fiber tube is disposed in the hollow chamber, and the other end of the optical fiber tube is extended out of the refracting base. Therefore, the invention can increase the number of reflections of the light inside the hollow chamber and reduce the loss of light occurred during the refraction process to provide a lamp with good illumination.09-20-2012
20130188386DATA COLLECTOR WITH EXPANDED FUNCTIONALITY - Embodiments of the present invention recite a data collector with expanded functionality and a method of enhancing revenue generation using a data collector with expanded functionality. In one embodiment, a central unit of a data collector is configured to receive a replaceable unit such that any one of a variety of replaceable units can be configure to be attached to said central unit.07-25-2013
20090310381LED STREETLIGHT STRUCTURE - The present invention discloses an LED streetlight structure, which comprises: a heat-conduction pipe frame, an upper casing, a lower casing, a light concentration plate, and a transparent cover. The upper and lower casings are made of a plastic material and pivotally coupled to each other. The heat-conduction pipe frame has a heat-dissipation seat with main heat-dissipation fins. Two stabilizer boxes with fins are respectively arranged at two sides of the heat-dissipation seat. Heat-dissipation lamp sets insert through the bottom of the heat-dissipation seat. The present invention installs the main heat-dissipation fins on heat-conduction pipe frame and installs the fins on the stabilizer boxes to increase heat-dissipation area. Further, an auxiliary heat-dissipation ventilation device is arranged above the heat-conduction pipe frame and made of aluminum, and aluminum itself benefits heat dissipation. Furthermore, air can be compulsively conducted to the main heat-dissipation fins, then can enhance the dissipation effect.12-17-2009
20090059615Fiber optically enhanced reflective strip - A fiber optically enhanced reflective strip having a first material, a light pipe inside the first material having an end, and a LED positioned proximate the end of the light pipe to transmit visible or infrared light to the first material to illuminate the material is described. The LED transmits single or multiple colored light energies in separated or combined forms through the light pipes. The strip produces multiple spectrums of visible and/or infrared light output that can be recognized by special IR sensitive equipment. The strip includes an external removable battery source and current limiting resistor that run on quiescent technology allowing the strip to output light for at least two to three weeks on lightweight and tiny batteries that are operated via a manual or automatic switch. The strip includes attachment means that can be attached to the safety apparels. The strip is used for quick identification and allocation of an individual in low or no visibility environments.03-05-2009
20110286233TEMPERATURE MONITORING OF A LIGHT GUIDE IN AN ILLUMINATION APPARATUS - An illumination apparatus having a radiation source and a light guide coupled thereto. The temperature of the light guide is monitored along its complete length. If a threshold temperature is exceeded, a switching mechanism will be triggered. The switching mechanism switches off the radiation source or triggers a warning signal.11-24-2011
20120099339LIGHT ENGINE MODULE AND SYSTEM INCLUDING SAME - An optical device is for receiving light from a light source, the light source having an emission wavelength. The optical device includes an elongated light guide, a first end of the light guide configured to receive light from the light source; and a phosphor disposed on a second end of the light guide, an excitation wavelength of the phosphor substantially similar to the emission wavelength of the light source. The light guide is formed of a material configured to dissipate at least some heat generated by the light source.04-26-2012
20110032726LIGHT DISTRIBUTION ASSEMBLY - A light distribution assembly includes a housing having a longitudinal length and having one or more light sources mounted to the housing. The light distribution assembly also includes a coupler section having a body extending from the housing along a longitudinal axis between a light entry end and a light exit end. The light entry end has a major axis extending in a first direction and the light exit end has a major axis extending in a second direction, wherein the coupler section is shaped such that the body is rotated about the longitudinal axis of the coupler section so that first direction is approximately perpendicular relative to the second direction. One or more light pipes are attached to the light exit end of the coupler section.02-10-2011
20120182756LIGHT GUIDE MODULE OF SCANNING APPARATUS - A light guide module of a scanning apparatus includes plural side-emitting light emitting diodes and a light-guiding post, which are disposed on a circuit board. The light-guiding post has plural reflective structures corresponding to respective side-emitting light emitting diodes for receiving light beams from respective side-emitting light emitting diodes. A spacing interval between two of the side-emitting light emitting diodes at a middle portion of the circuit board is greater than a spacing interval between two of the side-emitting light emitting diodes at a side of the circuit board.07-19-2012
20110292675LED DEVICE HAVING LIGHT GUIDE ARRAY WITH CURVED SURFACE - In an LED device, a light guide array is disposed between a planar LED array light source and a curved housing. A first surface of the light guide array is a plane evenly distanced from the LED array and a second surface of the light guide array is a curved surface evenly distanced from the curved housing. A plurality of guiding channels, either one-to-one or one-to-many to the LED, are aligning along each light axis of the LED in the light guide array, whose reflective surface allows the lights emitted by each LED to reflect thereon and emit from the second surface and simulate a curved light source having substantially the same shape as the curved housing.12-01-2011
20100177532LED LENS - A light modifier for an LED producing light about a central axis is provided. The light modifier includes a lens defining an indentation. The indentation is angled relative to the central axis by an amount less than a complementary angle of a critical angle of the lens along the indentation. The lens can reduce the appearance of a bright spot created by the LED.07-15-2010
20090021957Table lamp structure - The present invention discloses an improved table lamp, which comprises: a lamp base, an arm and a lamp hood. The lamp hood has a light-emitting element. The light-emitting element includes: a light conduction tube, a light conduction material and at least one light-emitting diode. A reflective mirror is arranged on the inner face of the lamp hood and around the light-emitting element. When the light-emitting diode emits light, the light-emitting element also emits light via the conduction of the light conduction tube and the reflection of the light conduction material. Then, the light emitted by the light-emitting element is reflected out by the reflective mirror. Thereby, the present invention can increase the illumination area, promote the brightness, decrease the number of required LEDs and reduce the cost.01-22-2009
20100033986Light Pipe For Imaging Head of Video Inspection Device - A light dispersal unit or light pipe for a video imaging device includes a transparent body. The body includes a tubular ring having an outer diameter and a through bore defining an inner diameter. Four equidistantly spaced raised portions are homogenously joined to the tubular ring. The ring has a semi-circular shape corresponding to the outer and inner diameters of the tubular ring. The raised portions each include a slot created between opposed first and second extending portions, the slot having an end wall and opposed first and second slot walls. A rounded end face defines a free end of each of the first and second extending portions facing away from the tubular ring. The rounded end face includes at least two curved portions each having a different radius of curvature.02-11-2010
20090122573ILLUMINATION DEVICE - Illumination devices include a light source including a substantially planar light-emitting surface and an optical rod or optical taper disposed proximate to the substantially planar light-emitting surface to optically couple the optical rod and the substantially planar light-emitting surface.05-14-2009
20100091517ACTIVATED LOW-POWER LIGHTING - The present invention provides a lighting unit comprising a diffusion optic fibre, a light emitting diode (LED) coupled to the optic fibre; and an actuator connected to the LED for selectively activating the LED so that light is sent through the optic fibre and provides lighting. The lighting unit is structured and arranged for at least one of path lighting, staircase lighting, outdoor mats, mailbox lighting; curb address lights, driveway lighting, plant lighting, boat dock lighting, exterior house lighting, furniture patios, specialty home products, airplane lighting, motorcycle lighting, boat lighting; and auto lighting. The lighting unit may also be structured and arranged to be combined with at least one of a net, a ball, a glove, an out-of-bounds lighting, a bicycle, a tricycle, a big-wheels, and golf equipment. The fiber may be wound into thread and woven into at least one of clothing, coats, hats, gloves, bracelets, necklaces, running vests, backpacks, strollers, carriages, and pet collars. The lighting unit may be structured and arranged for at least one of hospital/nursing home lighting, schools and school facilities, movie theatres, industrial signage for property, buildings or vehicles, streets and highways, road signs; and fencing.04-15-2010
20100254156MULTI-DIRECTIONAL LIGHT PIPE WITH METERED SIDE SCATTER - The present invention is directed to a light pipe that is used to illuminate a portion of a surface of a set top box when the instrument power is turned on. The light pipe can be molded for example from plastic. The light pipe should advantageously be a good carrier of photons down a linear path. Additionally, light pipe should allow for light to be transmitted out the sides of the part.10-07-2010
20120033441LIGHTGUIDE MODULE - A lightguide module having a linear collimator produced from optically transparent material, a toroidal lens produced from optically transparent material, and a light source, wherein the toroidal lens is disposed between the linear collimator and the light source, at the exit of the linear collimator are found scattering elements, and wherein a light-emitting part of the light source is directed toward an entry surface of the toroidal lens and an exit surface of the toroidal lens is directed toward entry surfaces of the linear collimator. The light source may be a light-emitting diode and the toroidal lens may be a Fresnel type lens.02-09-2012
20120033440EXPANDABLE LIQUID VOLUME IN AN LED BULB - An LED bulb includes a base, a shell, a plurality of LEDs, a thermally conductive liquid, and a liquid-volume compensator mechanism. The shell is connected to the base. The plurality of LEDs is attached to the base and disposed within the shell. The thermally conductive liquid is held within the shell. The liquid-volume compensator mechanism is attached to the base. The liquid-volume compensator mechanism is configured to compensate for expansion of the thermally conductive liquid. The liquid-volume compensator mechanism moves from a first position to a second position. A first volume is provided for the thermally conductive liquid in the first position. A second volume, which is greater than the first volume, is provided for the thermally conductive liquid in the second position.02-09-2012
20090207627FIBER OPTIC TAIL LIGHT SYSTEM - A fighting system comprising: a light harness; and a fiber optic light pipe having a body with an outer diameter, and a jacket that substantially covers the entire length thereof between a proximal and distal end about the outer diameter; where said proximal end is cooperatively connected to said light harness; said second end is cooperatively connected to a diverging lens yielding an output of light.08-20-2009
20120106192LIGHT EMITTING DIODE ILLUMINATION SYSTEM - In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications.05-03-2012
20120106191LED Homogenizer - One embodiment of an optical system described herein comprises a source including light emitting diode chip and a homogenizer. One embodiment of the homogenizer comprises an entrance face positioned to receive light from the source, the entrance face having a first shape, a body configured to homogenize the received light and an exit face, the exit face parallel to the primary emitting face of the source. The homogenizer can emit light with a half angle that is at least 80% of the half angle of light entering the homogenizer.05-03-2012
20090273945MODULAR, LUMINOUS, SMALL FORM-FACTOR SOLID-STATE LIGHTING ENGINE - The invention comprises a small form-factor solid-state light engine that provides uniform lighting with high efficiency. The invention provides uniform lighting by practically eliminating any “dead spot” produced by conventional light engines. The invention produces light more effectively and thus fewer light engines need to be employed in a given lighting arrangement. The invention is modular, easily accommodating fiber optics of various sizes and shapes with minimal modification to the components of the light engine.11-05-2009
20120195060ILLUMINATION DEVICE FOR USE WITH SURVEY LEVEL ROD AND METHOD OF USE - A laser readable surveying rod is provided with adjustable lighting elements. More specifically, lighting elements, such as LED lights are provided along a length of a surveying rod such that laser readings may be taken at night or in dark conditions. Lighting elements may be translated along a length of a rod, particularly where it is desirable to illuminate only a portion of a rod and conserve valuable energy.08-02-2012
20100110721Led diaphragm structure - An LED diaphragm structure includes an insulation base, a plurality of frames, and a plurality of LED chips, wherein the insulation base includes an upper surface on which a plurality of receiving recesses are provided. The plural frames include a plurality of positive-pole frames and a negative-pole frame, where the positive-pole frames do not contact with the negative-pole frame. The plural frames and the insulation base are formed together as an integral structure. The plural LED chips are correspondingly disposed in the plural receiving recesses of the insulation base, where each LED chip has its positive-pole terminal and negative-pole terminal electrically connected with contact portions of the plural positive-pole frames and of the negative-pole frame, respectively. Accordingly, the plural frames are combined with the insulation base as an integral structure, such that the LED diaphragm structure so assembled can be lightweight and compact.05-06-2010
20100061114Two-Dimensional Luminaire - A surface luminaire with a luminous chamber in the form of a hollow fiberoptic conductor is provided. The luminous chamber comprising a peripheral frame, an emission opening and a base plate which is populated at least partially with light-emitting diodes and on which sloping faces are arranged. The sloping faces bridge the edge region of the base plate and a region of the peripheral frame which adjoins the base plate and form a cavity between the lower region of the peripheral frame, the edge region of the base plate and the sloping faces, in which cavity control electronics, which drive the light-emitting diodes, are arranged.03-11-2010
20080291691SIDE-EMISSION TYPE LIGHT-EMITTING DIODE AND A BACKLIGHT UNIT USING THE LIGHT-EMITTING DIODE - A side-emission type light-emitting diode including: a first substrate having a concave formed in one of side surfaces of the first substrate, the concave including an inner surface which is configured to be a first reflecting surface; an LED-element-mounting board of thin plate shape, arranged on the lower surface of the first substrate, the board configured to close the concave at the lower surface of the first substrate; an LED element mounted on the board and arranged in the concave; and a light-transmitting resin filled in the concave and configured to seal the LED element.11-27-2008
20080310183Structure of a Color Changeable Soft-Tube Light - An improved color changeable tube light includes a opaque core line, a plurality of LEDs being arranged in the core line, a translucent diffuser with the same length as the core line, a cladding layer having the same length as the core line and covering the core line and being formed by extrusion molding integrally with the diffuser into one piece. A unit is formed by disposing a red LED, a green LED and a blue LED of the plurality of LEDs into a fixing means, a plurality of the units are connected in series and disposed in the plurality of transversal through-holes of the core line respectively. The fixing means may be a box. The box may be quadrate, round or elliptic in shape. The tube light of the present invention to have the effects of light beams of neon light, and the color changing and the color mixing to obtain various results are available.12-18-2008
20080298080FLICKERLESS LIGHT SOURCE - A flickerless light source comprising a transparent or semitransparent diffuser, a lightpipe with a patterned surface inside the diffuser, and an LED light source attached to each end of the lightpipe is disclosed. The patterned surface of the lightpipe diffuses or reflects light emitted by the LED light sources and through the lightpipe to provide a light with uniform brightness and intensity. The lightpipe is coated with a thin layer of visible-light transparent material which is doped with organic dye molecules. The organic dye has strong ultraviolet light absorption characteristics. By changing the doping concentration of the dye molecules the coating can become total opaque or semi-transparent to certain wavelengths and selective wavelength conversion is obtained. In this way light color, brightness, and intensity can be varied or controlled.12-04-2008
20080304280FLICKERLESS LIGHT SOURCE - A flickerless light source comprising at least two lightpipes with patterned surfaces, a single sided LED light source attached to one end of each lightpipes, and a coupler for holding the lighpipes together. The coupler comprises a hollow sleeve, a coupler with a reflective face, or a coupler with a dual sided LED light source is disclosed. The patterned surface of the lightpipes diffuse or reflect light emitted by the single and dual LED light sources and through the lightpipes to provide a light with uniform brightness and intensity. The coupler with reflective face reflects light back into the lighpipes. The coupler with the dual sided LED light source in addition to the single sided light sources emits light into the lightpipes.12-11-2008
20080205077Lighting System Comprising 2D Led Stack - The invention relates to a lighting system (LSI) which comprises a plurality of light engines (LEa08-28-2008
20110267836LIGHT SOURCE - The present invention relates to a light emitting diode, LED, light source that may be arranged for retrofitting into a luminaire employing an incandescent light source. The light source comprises a light guide into which light from one or more LEDs in a light unit arranged at one end of the light guide is injected, and a reflector having a reflecting surface arranged at the other end of the light guide and facing towards the light guide capable of reflecting light incident on the reflecting surface. According to the present invention, the reflecting surface can be arranged in a number of exemplary ways such as to enable the light emitted from the light source to have a spatial intensity distribution that is similar to the light intensity distribution of an incandescent light source.11-03-2011
20090129113CONNECTOR ASSEMBLY - A connector assembly is provided. The connector assembly includes a housing having at least a socket, an electronic device disposed in the housing, a protection member disposed on a side of the housing, a light emitting element disposed on the protection member, a light pipe disposed on the housing for guiding light from the light emitting element, a shield surrounding the protection member and the light emitting element, and a cover encompassing the light pipe, the shield, and the light emitting element.05-21-2009
20120069595LINEAR ILLUMINATION DEVICES - In various embodiments, LED-based illumination devices include an inlet region for receiving the LED light that is complementary in shape to the lens of the LED.03-22-2012
20090141515FLICKERLESS BACKLIGHT FOR A DISPLAY PANEL - A backlight assembly for a display panel comprising a diffuser, at least one lightpipe with a patterned surface inside the diffuser, a single sided LED light source attached to each end of the diffuser is disclosed. When a plurality of lightpipes is utilized a dual sided LED light source connects the lightpipes together. The patterned surface of the lightpipes diffuse or reflect light emitted by the LED light sources to provide a light with uniform brightness and intensity. The lightpipes are coated with a thin layer of visible-light transparent material which is doped with organic dye molecules. The organic dye has strong ultraviolet light absorption characteristics. By changing the doping concentration of the dye molecules the coating can become totally opaque or semi-transparent to certain wavelengths and selective wavelength conversion is obtained. In this way light color, brightness, and intensity can be varied or controlled.06-04-2009
20090027914Structure for a center high mounted stop lamp - The present invention discloses a structure for a center high mounted stop lamp, which comprises: a light pipe, a housing and LEDs. The light pipe has an inorganic light guide coating on a lateral side thereof and has LEDs at both ends thereof. The housing covers the light pipe and has a light reflection layer. The light reflection layer is arranged around the light pipe and behind the inorganic light guide coating. The light emitted by LEDs is scattered by the light pipe and reflected by the inorganic light guide coating. Thus, the light pipe can uniformly emit light. Further, the light emitted by the light pipe is concentrated and reflected out by the light reflection layer. Thereby, the present invention can decrease the number of required LEDs, save power, prolong the service life of LEDs and promote economic efficiency.01-29-2009
20090034285SCANNER MODULE AND IMAGE SCANNING APPARATUS EMPLOYING THE SAME - A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.02-05-2009
20090052204Surface Light Emitting Apparatus - The present invention provides a thin, low-power consumption, lightweight, and inexpensive surface light emitting apparatus using LEDs in conjunction with a light conducting member having a plurality of light conducting rods. More specifically, the surface light emitting apparatus of the invention comprises: a light conducting member constructed from a plurality of light conducting rods and having an end face and a light-emitting face; a light source for emitting light into the light conducting member through the end face; and light deflecting means for causing the light introduced through the end face of the light conducting member to emerge from the light-emitting face of the light conducting member.02-26-2009
20110228549HEADLAMP BULB TYPE LIGHT PIPE - The present invention provides an automotive headlamp assembly having a light pipe. The present invention provides use of at least one incandescent light bulb to illuminate the light pipe. Power consumption is reduced from approximately 35 watts to 10 watts. The present assembly consists of a light pipe, at least one light source positioned at either end of the light pipe, the light source being an incandescent light bulb, at least one reflector and an elongated reflector positioned adjacent the light pipe. The reflector is positioned adjacent the light source to capture light from the light bulb, concentrate the light into a beam and reflect the light into the light pipe. The reflector aims light directly down the light pipe without the use of cable or LED mounted to the light pipe. The reflector prevents lost light and creates a more efficient headlamp assembly. The light pipe is a generally cylindrical elongated member having a plurality of attachment members. Light pipe and attachment members are molded as a one piece construction. Furthermore, an elongated reflector is positioned adjacent the light pipe thereby preventing lost light and creating the illusion of a brighter light pipe.09-22-2011
20110141760LUMINOUS INTERIOR TRIM ELEMENT, AND CORRESPONDING DOOR AND MOTOR VEHICLE - A trim element (06-16-2011
20110228550LIGHTING FIXTURES HAVING ENHANCED HEAT SINK PERFORMANCE - Lighting fixtures having an enhanced heat sink performance are provided. A heat sink member is a unitary ring member. An outside surface of the heat sink member is disposed exterior of the lighting fixture and includes a plurality of outwardly extending fins. An inside surface of the heat sink member is disposed inside of the lighting fixture and includes a plurality of surfaces configured for mating engagement with a respective light source board. The heat sink member joins upper and lower globe portions of the lighting fixture. A reflector or a light pipe optionally is provided interior of the light fixture, providing illumination directional control. A polygon shaped lighting fixture provides a LED light output to cross in a plane proximate to a light center of the fixture.09-22-2011
20090103325Traffic signal having a uniform light surface - A LED signal (04-23-2009
20090251918LIGHTING DEVICE, AUTOMOTIVE HEADLIGHTS AND METHOD FOR PRODUCING A LIGHTING DEVICE - Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight.10-08-2009
20090122572Apparatus configured to provide functional and aesthetic lighting from a fan - One embodiment of the present invention provides an apparatus that is configured to provide direct and/or indirect and aesthetic lighting from a fan. The apparatus comprises: a motor; a motor housing; one or more fan blades rotating around the motor housing; and one or more stationary light-emitting diodes (LEDs) coupled to the motor housing. Note that the stationary LEDs are configured to direct light into the fan blades, thereby causing the fan blades to illuminate.05-14-2009
20120243254Lighting Module - A lighting module, comprising a printed circuit board, which on the front side thereof, is populated by at least one light source as well as at least one light sensor; a hollow optical waveguide element, which laterally surrounds the at least one light source circumferentially; and a cover at least for the light sensor, arranged on the printed circuit board externally to the optical waveguide element, it being possible for a window to be located in the optical waveguide element to which window is connected a hollow light channel formed in and/or on the cover which leads to the light sensor.09-27-2012
20110128755AMBIENT MOOD LIGHT IN A SUNROOF OPENING TRIM RING - The present invention provides a lighting assembly wherein a trim ring, containing a lighting assembly, is mounted on a vehicle headliner. The lighting assembly contains a lighting element having a light engine. The light engine having a housing and a light source mounted within the housing. The housing optionally containing a circuit board adapted to control light emitting from the light source. The light source contained within the housing may either be an LED or a traditional light bulb. The light source may optionally be colored, or textured, to provide unique ambient mood light options. The assembly further provides a light pipe having at least one light pipe aperture. The lighting element positioned adjacent, or connected to, the light pipe aperture. The light source in the lighting element directs light down the light pipe thereby creating a uniform output of light along the light pipe. Light from the light pipe is directed into the vehicle interior, mainly onto the vehicle headliner, thereby creating ambient mood lighting within the automotive interior.06-02-2011
20100177531MOBILE DEVICE WITH ILLUMINATION - A mobile device is provided comprising a light guide modified at a plurality of locations to let light guided in the light guide at least partially escape. Furthermore, methods and apparatuses for manufacturing such mobile devices are provided.07-15-2010
20130215636LIGHT MIXING LENSES AND SYSTEMS - Lighting modules and lighting systems containing one or more lighting modules, and associated methods, are provided that receive light from one or more light sources for projecting it to a target surface, e.g., in a uniform, patterned, or other controlled manner. In various embodiments, the lighting modules and lighting systems can be used to mix the light generated by one or more sources.08-22-2013
20100265733Attachment System for Light-Conducting Fibers - In an embodiment, an attachment system for communicating light energy from a light source to a light-conducting fiber includes a light pipe body sufficiently designed to engage a distal end of a light pipe, the light pipe body comprising at least one opening configured to dissipate heat buildup from light energy; a front assembly sufficiently designed to engage the light pipe body, the front assembly comprising an orifice and at least one opening configured to dissipate heat buildup from light energy; a light-conducting fiber body sufficiently designed to engage the front assembly and to hold a proximal portion of a light-conducting fiber, the light-conducting fiber body positioned in the orifice of the front assembly; and an optical taper assembly sufficiently designed to hold an optical taper, the optical taper assembly positioned between and spaced apart from the front assembly, and positioned between and spaced apart from the light pipe.10-21-2010
20100208488LED Lamp Including Light Guide and Method of Reflecting Light Using Same - An LED lamp including a light guide/light pipe, and a method of reflecting light using same, are disclosed. The LED lamp includes a transparent light pipe enclosed in an envelope, where the light pipe has a lower section and an upper section. The lamp also includes an LED in a recess at a lower end of the lower section, and a reflector formed by an indentation in an upper end of the upper section. The lower section may be a compound parabolic concentrator, and the upper section may be a tapered cylinder. The lower section of the light pipe collects light emitted from the LED, the upper section of the light pipe directs the collected light onto the reflector, and the reflector reflects the directed light in a radial direction.08-19-2010
20120243253LIGHT RING FOR APPLIANCE CONTROL ADJUSTABLE FOR CONSOLE THICKNESS - A backlight for an appliance knob provides a light pipe that may receive light from a light source fixed behind a console at a variety of different extensions permitting ready adjustment of the light pipe to fit closely behind the appliance knob with different console thicknesses and tolerances.09-27-2012
20090116260LIGHTING DEVICE FOR VIDEOENDOSCOPE - A lighting device for videoendoscopic probe, comprising a light generator comprising a case wherein are mounted a light-emitting diode, a lighting endpiece attached to the end of the bundle of lighting fibers configured to adapt the surface of the proximal end of the bundle of lighting fibers to the light-emitting surface of the diode, and a connection part configured to be fixed on a handle of videoendoscopic probe, and to couple with the case, the case and the connection part being configured to maintain the lighting endpiece on the light-emitting surface.05-07-2009
20110176326ILLUMINATABLE APPARATUS AND METHOD OF MANUFACTURING SAME - An illuminatable apparatus includes a fabric sheet containing fiber optic rods interwoven with fabric threads. The ends of the fiber optic rods are bundled together to form a ferrule which is removably insertable into a holder carrying a light source and a power source. An outer ferrule can be fixed over the sleeve-like ferrule or robust applications. The holder may be removably attached to articles of clothing. The illuminatable fabric sheet can be used as an optical bandage, in a medical cast, in a negative pressure device, or in a bed pad/sheet, or in a therapeutic brace support.07-21-2011
20090040783Compact, high efficiency, high power solid state light source using a single solid state light-emitting device - A compact, high-efficiency, high-power, solid state light source, comprising a high-power solid state light-emitting device, a light guide having a proximal light-receiving end proximate the light-emitting device and a distal light-transmitting end spaced farther from the light-emitting device, and a mechanical light guide fixing device coupled to the light guide near its proximal end, to hold the proximal end of the light guide in position near the light-emitting device.02-12-2009
20090109699LIGHT SOURCE - A light source, such as for a projection system, having a plurality of semiconductor chips and at least two different, electromagnetic-radiation-emitting chip types with different emission spectra, each semiconductor chip having a chip coupling-out area through which radiation is coupled out. Furthermore, the light source has a plurality of primary optical elements, each semiconductor chip being assigned a primary optical element, which in each case has a light input and a light output and reduces the divergence of at least part of the radiation emitted by the semiconductor chip during the operation thereof. The semiconductor chips with the primary optical elements are arranged in at least two groups that are spatially separate from one another, with the result that the groups emit separate light cones during operation of the semiconductor chips. The separate light cones of the groups are superposed by means of a secondary optical arrangement to form a common light cone.04-30-2009
20100302797VEHICLE EXTERIOR MIRROR SYSTEM - A lighted exterior mirror system includes an exterior mirror assembly having a folding portion and a non-folding portion. The non-folding portion is configured to mount to a side of a vehicle and the folding portion includes a reflective element. The folding portion is movable relative to the non-folding portion and between a normal operating position and a folded position. A ground illumination light is configured to project a pattern of light from the exterior mirror assembly to provide a lighted zone on a ground area adjacent the side of the vehicle at least at a front door region at the side of the vehicle where occupants may enter/exit the vehicle. The pattern of light projected by the ground illumination light provides ground illumination of at least about one lux illumination intensity at least on the ground area adjacent the front door region at the side of the vehicle.12-02-2010
20130141934IRRADIATION APPLIANCE - The invention relates to a radiation device that includes a housing, a light-emitting unit and a light-absorbing unit which is provided with an inlet opening and a reflector element. The reflector element extends across the entire distance between the light-emitting unit and the inlet opening of the light-absorbing unit.06-06-2013
20110110114Structured illumination probe and method - A structured illumination surgical system is disclosed, one embodiment comprising: a light source for providing a light beam; an optical cable, comprising an optical fiber, optically coupled to the light source for receiving and transmitting the light beam; a handpiece, operably coupled to the optical cable; an optical element, a proximal end of the optical element optically coupled to a distal end of the optical fiber, for receiving the light beam and scattering the light beam to illuminate an area (e.g., a surgical site), wherein the surface area of the proximal end of the optical element is greater than the surface area of the distal end of the optical fiber; and a cannula, operably coupled to the handpiece, for housing and directing the optical fiber and the optical element.05-12-2011
20100232176Illuminator method and device - A first toroidal ray guide defines an axis of revolution and has a toroidal entrance pupil adapted to image light incident on the entrance pupil at an angle to the axis of revolution between 40 and 140 degrees, and it also has a first imaging surface opposite the entrance pupil. A second toroidal ray guide also defines the same axis of revolution and has a second imaging surface adjacent to the first imaging surface. Various additions and further qualities of the ray guides, which form optical channels, are disclosed. In a method light emanating from a source at between 40-140 degrees from an optical axis is received at an entrance pupil of a ray guide arrangement that is circularly symmetric about the optical axis. Then the received light is redirected through the ray guide arrangement to an exit pupil in an average direction substantially parallel to the optical axis.09-16-2010
20110019433LED LIGHTING DEVICE - A light-emitting diode lighting device may include a plurality of light-emitting diodes fastened on a flexible substrate, the flexible substrate being applied on a surface of a rod-shaped carrier.01-27-2011
20110116284Internal Collecting Reflector Optics For LEDs - An optical system is disclosed that uses an LED light source. The light output is coupled to an optic element formed from a material with a high refractive index. The coupling of the light to the high index material significantly reduces the cone angle of the light. The system is very efficient in that nearly all the light generated by the LED is directed to the intended subject.05-19-2011
20110242837DEVICE FOR MIXING LIGHT - The present invention relates to a device for mixing light. More specifically, the invention relates to a device for mixing light 10-06-2011
20110242836LED Illumination System with Recycled Light - An LED illumination system includes at least one LED element and a recycling reflector having a transmissive aperture through which emitted light passes. The recycling reflector has a curved surface adapted to reflect the impinging light back to the LED element for improved light output through the transmissive aperture.10-06-2011
20110149592LIGHT COLLECTOR FOR A WHITE LIGHT LED ILLUMINATOR - A white light source includes a light-emitting diode (LED) configured to emit white light in an angular distribution. The white light source further includes a light guide and a light collector configured to collect light across the angular distribution. The light collected by the light collector contributes to a total luminous flux of the white light coupled into the light guide.06-23-2011
20120230049HOUSEHOLD APPLIANCE INCLUDING INFORMATION LIGHT DEVICE - A household appliance including an information light device that allows a user of the household appliance to determine when the household device is in operation, and a method thereof. The information light device may include a light guide structured to indicate an operating status of the household appliance. The light guide may be disposed at a lower portion of the household appliance, and embodied as a wave guide where at least part of the light that exits the light guide is guided in a direction that is perpendicular to the light guide and onto a floor where the household appliance is disposed.09-13-2012
20110249467LIGHT EMITTING DEVICE CREATING DECORATIVE LIGHT EFFECTS IN A LUMINAIRE - The present invention relates to a light emitting device (10-13-2011
20090027915LIGHT SOURCE UNIT AND OBJECT READER - A light source unit and reader can include a line light source that is attached to a radiator and a rod lens that is attached above the line light source. The radiator with the line light source and the rod lens attached thereto, and a linear strip-shaped reflector arranged in front of the rod lens, are housed in a carriage. The carriage is supported beneath contact glass and movable in a direction normal to a longitudinal axis of the line light source. The lens has a section in a plane normal to a longitudinal axis of the lens, in which a surface of the lens facing the light source has a curved line that expands or is convexly facing toward the light source. The opposite surface of the lens from the light source has composite curves including a plurality of continuous curves with different radii of curvature. The composite curves are located on both sides of a plane containing the optical axis of the LED and expand or are convex in an opposite direction from the light source.01-29-2009
20090213616CO-FUNCTIONAL MULTI-LIGHT SOURCE LUMENAIRES AND COMPONENTS THEREOF - A lumenaire system for providing illumination by distributing and mixing light from multiple sources of illumination which includes a first light source providing Lambertian light radiation and a second light source providing collimated illumination. There is a prismatic light guide structure having at least two functions, the first function being to refract the light radiation from the first light source disposed as to at least partially surround the light source, and the second function is to guide and distribute light from the second light source so as to mix it with light from the first light source.08-27-2009
20110149590Linear light source - A linear light source, in which an LED is arranged at an end portion of an approximately cylindrical light guiding member configured so that an upper portion, which has an approximately circular portion and which includes a light emitting face, a flat lower portion, which includes a light reflection face formed so as to face the upper portion, and side portions which connect the upper portion and the lower portion to each other, are arranged to extend in a longitudinal direction, respectively, and a light diffusion and reflection member provided outside of the light guiding member.06-23-2011
20130163272USER INTERFACE LIGHTING APPARATUS - A user interface panel includes a user interface substrate, an electronics carrier and a light pipe disposed between the user interface substrate and electronics carrier. A reverse mount, side emitting LED is disposed through an aperture in the electronics carrier so that the LED can emit light into the light pipe.06-27-2013
20080285301LIGHTING DEVICE COMPRISING A PLURALITY OF SEMICONDUCTOR LIGHT SOURCES - A lighting device is disclosed comprising a plurality of semiconductor light sources disposed on a carrier, wherein the light from the light sources is coupled into assigned lightguides at a set angle to the surface normals of the carrier and the lightguides are provided with reflecting and light exit faces such that the envelope of the light outcoupling faces forms a curved surface segment.11-20-2008
20080285300LED illumination engine using a reflector - An illumination engine for a projection display using light emitting diodes (LEDs) that includes a reflector having a first and second focal points, a source of electro-luminescence located proximate to the first focal point to emit rays of radiation in a first range of wavelengths that reflect from the reflector and converge substantially at the second focal point, and a light pipe having an first input end and a first output end, the first input end being located proximate to the second focal point to collect substantially all of the radiation and wherein the first output end transmits substantially all of the radiation. The illumination system may further include a substrate having a first side, a platform disposed proximate to the first side of the substrate, and a plurality of reflectors each having a first and second focal points disposed in the platform, each of the first and second focal points disposed proximate to the first side of the substrate, a plurality of sources of electro-luminescence disposed on the first side of the substrate, each of the sources of electro-luminescence disposed substantially coincident with a corresponding one of the first focal points to emit rays of electromagnetic radiation that reflect from a corresponding one of the plurality of reflectors and converges substantially at a corresponding one of the second focal points, a plurality of light pipes disposed in the substrate, each of the light pipes having an input end and an output end, each of the input ends disposed substantially coincident with a corresponding one of the second focal points to collect substantially all of the radiation, wherein each of the output ends transmits substantially all of the radiation emitted by a corresponding one of the plurality of sources.11-20-2008
20100277943Interchangeable attachments for collars, leashes, belts and accessories - An article, including pet collars and leashes, belts, bags and backpacks, has an interchangeable attachment. The article comprises a proximal end, distal end and a central section having at least one connection means appointed to receive the interchangeable attachment. The interchangeable attachment includes a top wall having a show surface and a back wall having a securing member adapted to engage with the connection means of the article for removably attaching the interchangeable attachment to the article. In one embodiment the interchangeable attachments are provided as button-type attachments. In another embodiment, the interchangeable attachment is provided as an elongated attachment portion appointed to substantially cover the central section of the article. The interchangeable attachments have a plethora of designs and may include LED, fiber optic and/or reflective properties to provide aesthetic appeal, enhanced visibility, and increased safety for pedestrians during nighttime or dusk hours.11-04-2010
20110134657LIGHT-PIPE BASED IDENTIFICATION AND LOCATION SIGNALING LIGHT - A signaling light source facilitates locating personnel under adverse conditions such as in a smoky environment and resists damage from exposure to a harsh user environment A lighting unit includes at least one, and preferably two, of the signaling light sources also includes at least one personnel identifying red-green-blue (“RGB”) light emitting diode (“LED”) Disclosed methods for operating the signaling light source include energizing operation of a LED light source by supplying a sequence of electrical current pulses which repeat at a rate which causes emitted light to pulse visually, supplying electrical current to a pair of LEDs alternatively connected either in series or in parallel depending upon battery operating condition, and monitoring smoke density in environment around the signaling light source and modulating the intensity of emitted light responsive to smoke density06-09-2011
20080278964OPTICAL FIBER ILLUMINATION - A portable device or a cover for a portable device includes a light source to emit light and an optical fiber to illuminate based on light received from the light source.11-13-2008
20100182798ADVANCED CONNECTOR ASSEMBLY - A connector assembly is provided. The connector assembly includes a housing having at least a socket, an electronic device disposed in the housing, a protection member disposed on a side of the housing, a light emitting element disposed on the protection member, a light pipe disposed on the housing for guiding light from the light emitting element, a shield surrounding the protection member and the light emitting element, and a cover encompassing the light pipe, the shield, and the light emitting element.07-22-2010
20090244922LIGHT PIPE, ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE - In a light pipe which allows light from a light source to be incident on the light pipe from an incident opening to be repeatedly reflected on a side wall surface of the light pipe, and to be radiated from a radiation opening, it is possible to radiate illumination light having high directivity and uniform brightness distribution thus radiating light while enhancing utilization efficiency of light. A diffraction portion is formed in a region on an incident opening side of a side wall surface of a light pipe. In the diffraction portion, light is reflected such that a reflection angle with respect to the side wall surface is larger than an incident angle with respect to the side wall surface, and a radiation angle of light radiated from a radiation opening is smaller than an incident angle of light incident on the light pipe from an incident opening.10-01-2009
20110149591Enhanced LED illuminator - An ophthalmic illuminator is disclosed, one embodiment comprising: an illumination source and an optical fiber for transmitting a combined light beam from the illumination source to a site, such as a surgical site within an eye, wherein the illumination source comprises a plurality of light emitting diode (LED) chips optically coupled to a corresponding plurality of light pipes, the LED chips and light pipes arranged in a configuration such that the light pipes converge together at their distal ends to form a cubic box having five sides formed by the distal ends of the light guides and an open side from which the combined light beam, composed of light from a plurality of light beams generated by the LED chips and transmitted to the cubic box by the light guides, is emitted. The luminance of the combined light beam has a luminance greater than the luminance of any one of the plurality of LED chips.06-23-2011
20110261583LIGHT SOURCE - A light source for coupling light into a medical device, particularly a surgical handheld device, preferably for use in ophthalmology, comprising a lamp (10-27-2011
20100027288Optical Devices for guiding illumination - Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device. Acutely angled ramp structures may be provided on both top and bottom surfaces of optical devices for distributing light along such top surface. Illumination apparatuses are also provided using such optical devices.02-04-2010
20110216553SCANNER MODULE AND IMAGE SCANNING APPARATUS EMPLOYING THE SAME - A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.09-08-2011
20120307513LIGHT SOURCE GUIDING STRUCTURE AND LAMP STRUCTURE - A lamp structure includes an electrical connection unit, a light emitting unit, and a light guiding unit. The electrical connection unit includes an electrical connection element. The light emitting unit includes at least one light emitting element disposed on the top side of the electrical connection unit and electrically connected to the electrical connection element. The light guiding unit includes a light guiding element disposed on the top side of the electrical connection unit. The light guiding element has a bottom light-input surface, a top light-output surface, and a surrounding light-output surface. The surrounding light-output surface has a first surrounding region gradually outwardly expanded from bottom to top, a second surrounding region connected to the first surrounding region and gradually inwardly contracted from bottom to top, and a third surrounding region connected to the second surrounding region and gradually outwardly expanded from bottom to top.12-06-2012
20120307514LIGHT EMITTING DIODE ILLUMINATION SYSTEM - In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements is used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications. In various embodiments of the invention, a plurality of independent narrow band colors can be coaxially combined.12-06-2012
20090147530LED Lamp Light Emitting Insert - An LED lamp light emitting insert includes an LED lamp, a mist sprayer, and a circuit. The LED lamp and the mist sprayer are connected to the circuit through a switch. A mist spraying hole is disposed on the circumferential surface of the light emitting insert; a blind hole is disposed at an upper end of the light emitting insert and inserted with a silicone optical fiber; a star body is installed at a distal end of the silicone optical fiber. The light emitting insert is applied to a decoration such as a basket, pot, box, bunch or bouquet of fresh or artificial flowers, or a color ribbon, a church bell, an arch, a flower circle, a flower groove, a pond, and a flower car to provide light emitting and mist spraying effects The light emitting insert can be bent into different shapes to provide a natural and artistic look.06-11-2009
20090168449Light emitting diode unit - Disclosed is a light emitting diode unit, more particularly, a light emitting diode unit including a thermoplastic substrate, a light emitting diode, mounted on one surface of the thermoplastic substrate and a heat sink, directly adhered to the other surface of the thermoplastic substrate. With the present invention, the manufacturing cost and the manufacturing time of the light emitting diode unit can be reduced by allowing the heat sink, discharging the heat generated by the light emitting diode, to be directly adhered to the substrate on which the light emitting diode is mounted. Also, the heat discharging ability of the light emitting diode unit by using the heat sink directly adhered to the thermoplastic substrate.07-02-2009
20120206933LAMP08-16-2012
20120063160Effiency and quality by applying light extraction means to the collection portion of a linear luminaire - Improved side-light distribution systems are disclosed. In one embodiment, an efficient side-light distribution system includes a LED light source; a light coupler for receiving light from the LED light source at a first end and providing light at a second end to an elongated light pipe, and the elongated light pipe receives light from the LED light source at a first end and transmitting the light towards a second end. The coupler transforms at least the angular distribution of at least 70% of the light from the LED light source into an appropriate angular distribution needed for total internal reflection at a second end within the elongated light pipe. The light coupler includes a light-extraction means between the first and second ends of the light coupler for extracting light out of a side of the light coupler. At least part of the light within the light pipe is extracted out of a side of the light pipe, between the first and second ends of the light pipe, by a light-extraction means.03-15-2012
20120002436Light distribution using tapered waveguides in LED-based tubular lamps as replacements of linear fluorescent lamps - An LED replacement-lamp design concept comprising tapered waveguides to provide uniform and effective light distribution is disclosed. Currently, most LED-based replacement lamps for linear fluorescent lamps (LFLs) place discrete surface mount LEDs directly on a cylindrical base. This produces non-uniform, directional light that cannot illuminate large spaces as effectively as LFLs can. A design of an LED lamp with a semi-circle cross-section is proposed as a replacement for LFLs that get placed against the ceiling or some blocking surface. The flat back side of the proposed lamp is used to place a heat-sink. The design comprises of discrete LED chips or modules arranged on a board, where light from these modules are guided through tapered waveguides to create broad, uniform illumination over the entire curved surface of the lamp cover, which may be either transparent or translucent. The lamp's light is uniformly distributed in many directions, effectively illuminating large spaces.01-05-2012
20120008336Aircraft Lighting System - Described is a novel aircraft lighting system with the potential for achieving increased efficiency, improved thermal management, higher reliability, and longer lifetimes. The proposed approach involves combining solar cells and light-emitting diodes (LEDs), and utilizing the cold temperatures of about −50 degrees centigrade encountered in high-altitude (12,000 m) flight to improve thermal management and efficiency in both components.01-12-2012
20090016075SEMICONDUCTOR LIGHTING IN CONSOLE SYSTEM FOR ILLUMINATING BIOLOGICAL TISSUES - The present disclosure is directed to illumination techniques that include the use of one or more sets of Light Emitting Diodes or LEDs as light sources in a console/module system. The LED light sources can be utilized to produce a light beams with a specified/combination of intensity and spectrum. Of course, embodiments according to the present disclosure are not limited to one intensity/spectrum but multiple combinations of intensity and spectrum can be implemented. Such systems/methods can be implemented with various optical elements including filter, lenses, mirrors, and/or optical fibers. The system is controlled by voice activation, touch screen, footswitch or wireless communication. The LEDs might also be pulsed as a driving system. The optical fiber cable is tethered to the control.01-15-2009
20120014126LIGHTING ELEMENT FOR HOMOGENOUS APPEARANCE - The invention is related to a lighting element for a homogenous light appearance used in automotive devices. The lighting element has a light guide structure illuminated by a LED that feeds light into the light guide at the edge of the light guide. The diffuser pane forms a diffuser layer on the light guide surface and light guide and diffuser layer consist of plastic material and are in integrally moulded together in a 2-K moulding process.01-19-2012
20120026750CONTROLLED FLARING LIGHT TRANSMISSION DEVICE - Various exemplary embodiments relate to a light transmission device for transmitting light from at least one light source to an illuminated surface. The device may include at least one light entrance surface that allows entrance of light from the at least one light source; a light emitting surface with an area greater than the total area of the at least one light entrance surface; at least one light pipe portion extending from the at least one light entrance surface toward the illuminated surface wherein the light pipe portion internally reflects the light toward the illuminated surface; and a flared diffusion portion between the at least one light pipe portion and the light emitting surface wherein the diffusion portion internally reflects the light towards the light emitting surface. The device may be a solid piece of plastic. The light pipe portions may be curved to bend light toward the illuminated surface.02-02-2012
20120127748LIGHT-CONCENTRATING DEVICE USING MULTI-OPTIC CABLES - Disclosed is a light-concentrating device using multiple optical-cables in which beams of light output from a plurality of light sources are combined into one beam of light and condensed so that a focal point is formed at a desired position, to secure necessary illumination intensity at a desired remote position from the light sources, in which a focal angle of a condenser lens is adjusted so that the device exhibits a desired illumination intensity and/or desired light distribution property at a place distant from the light sources by a desired distance, and, hence, in which the device may be widely used, for example, to light a museum, swimming pool, building outer wall or building floor or bridge, or as a lighting device for a semiconductor manufacturing process or surgical operation, etc. To this end, the light-concentrating device using the multiple optical-cables includes a body, an LED module, a plurality of multi-optical-fibers, an optical-cable adaptor, an illumination intensity optical-cable and a condenser lens adjustment unit.05-24-2012
20120120676LIGHTING ASSEMBLY WITH ASYMMETRICAL LIGHT RAY ANGLE DISTRIBUTION - A lighting assembly that efficiently collects and accurately directs light with a defined asymmetrical light ray angle distribution onto a nearby target surface. The light with the asymmetrical light ray angle distribution illuminates the target surface with a defined illumination profile. In theatrical and architectural lighting, the defined illumination profile is an even illumination profile on a nearly vertical surface. In street lighting, the defined illumination profile is an even illumination profile on a horizontal surface. The lighting assembly includes an LED and a solid reflector optic having a reflective surface shaped to reflect light from the LED in a way that produces the asymmetrical light ray angle distribution at least in part.05-17-2012
20100172149LIGHT DISTRIBUTION USING A LIGHT EMITTING DIODE ASSEMBLY - A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One LED lighting unit includes a tubular housing and a plurality of LED assemblies mounted about a circumference of the tubular housing. LEDs face inward from a mounting surface that is angled offset of the tube. Alternatively, at least one LED can be oriented to emit light parallel to a tangent of the housing into a light pipe that curves inside at least a portion of the tubular housing.07-08-2010
20110103088MULTI-MODE LIGHTING APPARATUS - A multi-mode lighting system includes a collector unit having a base including a cavity and a transparent or translucent cover mounted on the base. The system further includes a lighting module having a base, a transparent or translucent cover and a photovoltaic element mounted therein. A plurality of fiber optic filaments extend from the collector to the lighting module to transmit radiation from first ends of the fiber optic filaments to second ends of the fiber optic elements. The first ends of the fiber optic filaments are disposed in an array in the collector unit to receive radiation and second ends are disposed in an array in the lighting module to emit radiation received by the first ends of the fiber optic filaments. Radiation transmitted by the fiber optic filaments illuminates an area external to the lighting module and impinges the photovoltaic element to generate electricity.05-05-2011
20120250345LIGHTING UNIT HAVING LIGHT GUIDE(S) INSERTED BEWTEEN A REFLECTOR AND A SCREEN - The invention relates to a dedicated lighting unit (D) which includes: i) at least one light guide (GL) comprising two opposing ends, at least one of which is coupled with a light source (SL); ii) a reflector (RL) having at least one concave section and intended for being placed opposite a rear portion of the light guide (GL) in order to reflect the guided light from the light source (SL) towards a front portion (PV) of the light guide (GL); and iii) a screen (EC) having at least one transparent central portion (PC) intended for being placed opposite at least one portion of the front portion (PV) of the light guide (GL) in order to be illuminated by the light transferred towards the outside and thus to induce a style effect and/or a three-dimensional effect.10-04-2012
20120163013 Elongated LED Lighting Arrangement - An elongated LED lighting arrangement comprises an elongated light pipe with homogeneous optical material between first and second ends. In an exemplary embodiment, an LED provides blue light to the light pipe via a first dichroic mirror tuned to pass blue light. Down-converting means on sidewall of the light pipe, tuned to receive blue light, absorbs blue light from the LED and to emit lower-energy light outside of the light pipe at respectively higher wavelengths. Light-extracting means on the sidewall extract from the light pipe some blue light without changing the wavelengths of the foregoing light. Light from the down-converting means and the light-extracting means are combined to provide a composite color. The first dichroic mirror receives some light emitted by the down-converting means and reflects back into the light pipe more than 80 percent of the light received by the mirror.06-28-2012
20120163012LIGHT GUIDE AND ELECTRONIC DRIVE HAVING SAME - An electronic device includes a chassis, a circuit board, and a light guide. The chassis includes a rear panel defining an opening. The circuit board is installed in the chassis. A connector is mounted to a rear end of the circuit board aligning with the opening. Two spaced light emitting diodes are mounted at a rear end of the connector. The light guide includes a connecting plate mounted to an outer side of the rear panel, and two light guiding posts extending from a bottom of the connecting plate. Front ends of the light guiding posts extend through the opening of the rear panel and align with the light emitting diodes of the connector, to transmit light generated by the light emitting diodes rearwards and upwards.06-28-2012
20120134170TUBULAR SKYLIGHT - A tubular skylight, comprising a tubular body (05-31-2012
20120134169LIGHT EMITTING DIODE LIGHT BOX AND LIGHTING ASSEMBLY USING THE SAME - A light emitting diode (LED) light box including a housing, a first LED module and a light guiding block is provided. The housing has a first hole. The first LED module is disposed inside the housing. The light guiding block is disposed inside the housing and located in front of the first LED module and opposite to the first hole. The first light emitted by the first LED module enters and proceeds in the light guiding block and then passes through the first hole.05-31-2012
20120170304CONNECTOR - A connector adapted for use in an illumination system comprising at least one optical element, such as an optical fibre. is disclosed. The connector comprises a housing dimensioned so that internally it retains at least one end portion of at least one optical element, and externally substantially follows the shape of the end portion(s) of the optical element(s). This forms a join between the ends of the optical element(s). A light source is also contained within the housing and positioned so as to illuminate the end portions of at least one optical element. Electrical connection means adapted to connect the light source to an external power supply are provided. The electrical connection means being moveable relative to the housing. The electrical connection means may be carried by a flexible substrate, or may be formed by slideable contacts within a light guide rail.07-05-2012
20120170302LED-BASED DENTAL EXAM LAMP WITH VARIABLE CHROMATICITY - An electrically powered light source including a light emitting diode (LED) having variable chromaticity, which is adapted for use in a dental operatory. A dental operatory lamp includes a thermally conductive housing having a front directed toward the operating area and a rear away from the operating area; a generally elliptical reflector located on the rear of the thermally conductive housing; at least one heat pipe; a plurality of color LEDs projecting light toward the elliptical reflector, the plurality of LEDs being in thermal contact with the at least one heat pipe; and an optical light guide for combining light from said LEDs. Another embodiment of the lamp includes at least two user selectable light spectra, one of said spectra providing white light with color temperature in the range 4000° K-6000° K and one spectra having reduced output in the wavelength range 400-500 nm.07-05-2012
20110199781LIGHT PROJECTOR AND SENSOR - A light projector has a light emitting device having a light emitting surface, an optical fiber having an incident end-face to which light emitted from the light emitting surface enters, and a lens arranged between the light emitting surface of the light emitting device and the incident end-face of the optical fiber. The light emitting device, the optical fiber and the lens are arranged on one optical axis. The optical fiber includes a core region as a region including a single core of uniform refractive index or a region collectively encompassing a plurality of cores having uniform refractive index. The lens converts diffused light emitted from the light emitting surface to diffused light that widens more moderately.08-18-2011
20120075881COMPUTER ENCLOSURE - A computer enclosure includes a front panel, a switch module, and a light guide module. The switch module is attached to the front panel and includes a mounting bracket, a switch member attached to the mounting bracket, and a light emitting diode (LED) attached to the mounting bracket. The light guide module is attached to the front panel and has a light guide slot and a first transparent board covering the light guide slot. The LED is configured to generate light that enters in the light guide slot and propagates out from the first transparent board.03-29-2012
20120188787SYSTEM FOR ILLUMINATING A VEHICLE INTERIOR ASSEMBLY - A vehicle interior assembly includes a light pipe that is concealed by at least one element of the assembly and is configured to illuminate a recess disposed adjacent to a display.07-26-2012
20090016074Semiconductor light engine using glass light pipes - A light engine for use in systems such as automotive lighting systems employs two or more semiconductor light sources, such as LEDs. Light emitted from the light sources is captured by light pipes which are mounted such that the light capturing surface of the light pipes are properly positioned, with respect to the semiconductor light sources. The light pipes transfer substantially all of the light captured from the semiconductor light sources to light emitting surfaces of the light pipes which can be appropriately located adjacent the output optics of the lighting system. The light engine can be easily assembled as the light pipes are in modules including a carrier member that can be mounted to a positioning member which also includes apertures to position the light capture surfaces of the light pipes at a known position with respect to the semiconductor light sources.01-15-2009
20110122647METHOD TO ASSEMBLY A TURN SIGNAL INDICATOR MODULE AND TURN SIGNAL INDICATOR SUB-MODULE - The invention is related to a method for assembly a turn signal indicator module mounted into a rear view mirror comprising a housing. A LED, a light guide and a lens of the turn signal indicator module are mounted in steps as:05-26-2011
20100238683FLEXIBLE LIGHT-EMITTING APPARATUS - A flexible light-emitting apparatus including a side light-emitting flexible light guide rod, two light emitting diodes, and two lenses is provided. The side light-emitting flexible light guide rod has a first end, a second end opposite to the first end, and a light-emitting surface connecting the first and the second ends. The LEDs are respectively disposed beside the first end and the second end and adapted for emitting light beams toward the side light-emitting flexible light guide rod, respectively. One of the lenses is located between the first end and the LED disposed beside the first end, and the other lens is located between the second end and the LED disposed beside the second end. Each of the light beams enters the side light-emitting flexible light guide rod through the corresponding lens and is transmitted to the outside of the side light-emitting flexible light guide rod through the light-emitting surface.09-23-2010
20100238682HeadLyte safety device - The “HeadLyte” Safety Device is intended to be attached or embedded within a helmet worn by a bicyclist, or, worn around the head of a walker or jogger. The “HeadLyte” is comprised of a band that is populated with light emitting devices providing 360 degrees of illumination. The purpose of this illumination is to alert other individuals and/or vehicles as to the presence and direction of travel of the person wearing the “HeadLyte”, The light emitting devices are connected to a power source and a microcontroller that enables them to flash in a variety of patterns. The light emitting devices may also utilize color to indicate direction of color. The increased visibility provided by the light emitting devices, combined with the location of the “HeadLyte” as it is worn at the highest possible point on the walker, jogger or bicyclist will further enhance the visibility of the wearer to others.09-23-2010
20080298081Side-Emitting LED Package with Improved Heat Dissipation - A light source and a method for making the same are disclosed. The light source includes a lead frame, an integrated circuit chip and a body. The lead frame has first and second sections. The first section includes a lateral portion, a chip mounting area and a first extension. The integrated circuit chip is bonded to the first section in the chip mounting area and is in thermal contact with the chip mounting area. The body has top, bottom, and side surfaces. The first extension is bent to provide a heat path from the chip mounting area to the side surface, a surface of the first extension that is not in contact with the side surface forming a first planar bonding surface. The heat path has less thermal resistance than a heat path through the lateral portion.12-04-2008
20110235361DEVICE AND METHOD FOR DIFFUSED LIGHTING FOR VEHICLE INTERIORS - This invention relates to a device for diffused lighting for vehicle interiors that includes one or more light sources and that is located outside the field of vision of the driver of the vehicle. Drivers, especially following refractive surgery, manifest debilitating effects and symptoms of dazzling. The mioisis caused by the diffused light of this invention improves the driver's visual performance, in terms of quality of vision.09-29-2011
20110235360LIGHT SOURCE DEVICE FOR SUPPLYING LIGHT TO FIBER OPTIC ILLUMINATION SYSTEM - A light source device for a fiber optic illumination system comprises a solid-state light emitting element having an emission surface shaped in quadrate, a light collection lens system with a positive power comprising at least a plano-convex lens, and a reflection member having a cylindrical reflection surface therein, all of which are arranged in this order coaxially with one another along a principal axis passing a center of the light emitting element, wherein the plano-convex lens is placed with a plane surface thereof directly facing and located at a space distance apart from the emission surface so as to form a virtual image of the emission surface.09-29-2011
20130016519LIGHT SOURCE MODULEAANM KUO; Heng-ShengAACI New Taipei CityAACO TWAAGP KUO; Heng-Sheng New Taipei City TW - A light source module includes a casing, a light-guiding rod, a light-emitting assembly and a heat-dissipating reflective shroud. The casing has a chamber and a transparent opening in communication with the chamber. The light-guiding rod has a light-exiting surface and a light-transmitting surface opposite to the light-exiting surface. The light-guiding rod is disposed in the chamber with the light-exiting surface facing the transparent opening. The light-emitting assembly is provided on one side of the light-guiding rod to emit light toward the interior of the light-guiding rod. The heat-dissipating reflective shroud is assembled with the casing to cover the light-transmitting surface of the light-guiding rod. The interior of the heat-dissipating reflective shroud has a reflective surface for reflecting the light passing through the light-transmitting surface back toward the light-exiting surface to exit the transparent opening. The heat-dissipating reflective shroud has double effects of heat dissipation and light reflection.01-17-2013
20130170245LIGHTING DEVICE - A lighting device improves light distribution uniformity. When a light emitting diode (LED) package module is applied to a straight-tube fluorescent lamp, characteristics of a circular surface light source with the LED may be efficiently embodied by varying a refractive index of a light guide member based on positions of the light guide member.07-04-2013
20080247189Imaging device illumination system - An imaging device illumination system comprises first and second elongate light guides configured to emit light toward an object to be imaged, each of the first and second light guides having an input window at one end thereof for receiving light from a light source and an end face at an opposite end thereof, wherein the input window of the first light guide is disposed proximate to the end face of the second light guide.10-09-2008
20130176748MODULARIZED SERVER - A modularized illuminating device includes a retaining base, a lighting module, and a light guide element. The retaining base includes an elastic positioning unit. The lighting module is removably disposed on the retaining base, and has a sliding groove and a retaining groove. The light guide element is disposed on the retaining base and faces to the lighting module. When the lighting module is installed to the retaining base along a plugging direction, the elastic positioning unit slides from the sliding groove to the retaining groove to retain the lighting module in the retaining base.07-11-2013
20130094238LED TUBULAR LAMP - An LED tubular lamp includes a shell, a base plate and a lamp shade. The shell is made of one or more shell sections respectively possessing two or more convection holes to carry out ventilation. The shell section has two placing grooves for depositing the base plate and two combining grooves for combining with the lamp shade. The base plate has two sides fitting in the two placing grooves and an upper surface coated with a heat conducting paint, loaded with the LEDs as a light source. So the heat may be absorbed by the heat conducting paint and transmitted through the convection holes into the air. The lamp shade made integral has two combining members to combine with the combining grooves of the shell. The light of the LEDs shines through the lamp shade. The lamp disperses the heat quickly to prolong the service life of the LEDs.04-18-2013
20130114286METHOD AND ARRANGEMENT FOR COUPLING IN RADIATION EMITTED BY LEDS - A method and arrangement for transmitting radiation emitted by LEDs operated in pulsed operation via at least one optical waveguide, wherein a first optical waveguide having first and second coupling surfaces is assigned to each LED, the first optical waveguides are in each case aligned, by their first coupling surfaces, with an assigned stationary LED, the second coupling surfaces are arranged on a closed path and a coupling surface of a second optical waveguide is assigned to the second coupling surfaces. In order that a high light power can be coupled into the second optical waveguide by means of the LEDs, it is provided that the second optical waveguide, in accordance with the clocking of the switched-on LEDs, can be aligned with the second coupling surface of a first optical waveguide from at least one switched-on LED.05-09-2013
20130094239LIGHT GUIDE COLUMN, LIGHT EMITTING STRUCTURE AND ILLUMINATION DEVICE USING THE SAME - A light guide column is disposed on the top of a light source. The light guide column includes a column body, a cavity, a reflection structure and a micro-structure. The column body has a first end and a second end opposite to the first end. The cavity on the first end is for gathering the light source. The reflection structure is on the second end, when light emitted from the light source, a portion of the light reflected by the reflection structure to emit toward a lateral surface of the column body and others transmitted to the front side direction. The micro-structure is formed on the lateral surface of the column body can facilitate the emitting light from the column body uniformly.04-18-2013
20110267835LIGHT SOURCE - The present invention relates to a light emitting diode, LED, light source that may be arranged for retrofitting into a luminaire employing an incandescent light source. The light source comprises a light guide into which light from one or more LEDs in a light unit arranged at one end of the light guide is injected, and a reflector having a reflecting surface arranged at the other end of the light guide and facing towards the light guide capable of reflecting light incident on the reflecting surface. According to the present invention, the reflector comprises at least one transmitting portion being arranged such that at least a portion of light incident on the at least one transmitting portion is transmitted through the reflector, for example a through hole extending along an axis, allowing for an almost viewing angle independent light intensity of the light source.11-03-2011
20110273900OPTICAL ELEMENT AND LIGHT SOURCE COMPRISING THE SAME - The present invention relates to an optical element including a light guide, into which light from one or more light-emitting diodes in a light unit arranged at one end of the light guide is injected, and a reflector arranged at the other end of the light guide capable of reflecting light incident on the reflector. The light guide further includes a prismatic surface comprising a plurality of prisms, each prism being arranged at an angle to an axial direction of the light guide, for guiding the light emitted from the light unit towards the output end of the light guide. The present invention also relates to a light source including an optical element according to the present invention, the light source being arranged for retrofitting into a luminaire employing an incandescent light source.11-10-2011
20110211364Rotating Fiber Optic Sculpture - A sculpted decorative object, such as a Christmas tree, is shown which has a motor driven vertical drive shaft and three rotating sections. Rotation of the vertical drive shaft and an associated drive gear causes relative rotation of a driven gear and, in turn, a respective rotating section of the object about the axis of the drive shaft. A fiber optic bundle is mounted within each rotating section of the object. Each bundle contains several fiber optic strands which terminate at a LED light source at one end and at a light emitting element at an opposite end. Each LED light source is supplied from a common electrical source by means of a series of wiper contacts and rotatable contact rings carried by respective stationary and rotating portions of the sculpted object.09-01-2011
20110222308LIGHT GUIDE FOR COUPLING DIFFERENTLY SHAPED LIGHT SOURCE AND RECEIVER - A light guide for interfacing between a light source having a light emitting surface with a first shape and a light receiver with a light receiving surface of a second shape. The light guide has a light emitting end having a first shape of substantially the same size as the first shape of the light emitting surface. A light receiving end has a second shape of substantially the same size as the second shape of the light receiving surface. A free form body between the light emitting end and the light receiving end causes a transition between the first and second shape.09-15-2011
20110228551LIGHT GUIDE, PATTERNED LIGHT EMITTING DIODE DEVICE, ILLUMINATION SYSTEM AND METHOD OF GENERATING THE LIGHT GUIDE OR PATTERNED LIGHT EMITTING DIODE DEVICE - The invention relates to a light guide (09-22-2011
20120275179LUMINESCENT BICYCLE - A frame-supported vehicle, such as a bicycle or the like, has at least one frame component made of a light diffusing or fluorescent translucent or transparent material to form a leaky light pipe, and at least one light source in light communication with the frame component, whereby light propagates within the frame and is visible from outside the frame by diffusion or fluorescence or a combination thereof. The bicycle is highly visible at night, and may carry logos or other indicia that are enhanced by the background illumination, which may be redirected out of the tube.11-01-2012
20130155716LIGHTING FIXTURE - A light fixture including at least one light emitting device and a light-guiding pillar is provided. The light emitting device is adapted to emit a light beam. The light-guiding pillar has a light incident surface, an end surface opposite to the light incident surface, and a peripheral surface connecting the light incident surface to the end surface. The peripheral surface includes a smooth curved surface, a fillister surface connected to the smooth curved surface, and a reflective surface connected to the fillister surface. The light emitting device is disposed beside the light incident surface. The fillister surface is disposed at two opposite sides of the reflective surface. Extending directions of a plurality of fillisters on the fillister surface are substantially parallel to an extending direction of the light-guiding pillar.06-20-2013
20120281428REFLECTIVE NANOFIBER LIGHTING DEVICES - A fiber-based reflective lighting device and a lighting device. The fiber-based reflective lighting device includes a source configured to generate a primary light, a mat of reflective fibers which diffusely reflects light upon illumination with at least the primary light, and a light exit configured to emanate the reflected light. The lighting device includes a housing, a source configured to generate primary light and direct the primary light into the housing, a reflective mat of fibers disposed inside the housing at a position to reflect the primary light, and a light exit in the housing configured to emanate the reflected light from the housing.11-08-2012
20120281427COLLIMATED ILLUMINATION USING LIGHT PIPES - A system includes multiple light emitting diodes (LEDs) and a light pipe configured to mix light from the LEDs and produce collimated light. The light pipe includes multiple reflective optical devices configured to reflect the collimated light at different angles. The light pipe also includes multiple outlet optical devices configured to selectively control exit of the reflected collimated light from the light pipe. The reflected collimated light has one or more controllable spectral characteristics and/or one or more controllable geometries of illumination.11-08-2012
20130182455DISPLAY DEVICE - Disclosed is a display device including a plurality of channels for forming a specific pattern, in which each of the channels includes: a light source module comprising one or more light sources for generating optical signals having different wavelengths; a driving module for controlling on/off or strength of the optical signal generated in the light source module; an optical waveguide for transferring the optical signal generated in the light source module to an outside without a loss of the optical signal; and a scattering pattern for scattering the optical signal transferred through the optical waveguide and displaying the scattered optical signal to the outside.07-18-2013
20130188384SOLID STATE CONTINUOUS WHITE LIGHT SOURCE - A solid state illumination system is provided as a replacement for conventional arc light, metal halide and Xenon white-light sources for applications in life sciences including, microscopy, fluorescence microscopy, and endoscopy. The solid state illumination system generates high quality white light output from LED light sources. The white light output is continuous in the visible spectrum from 380 nm to 650 nm and is suitable for imaging all the most common fluorophores and fluorescent proteins. In embodiments, an LED light pipe engine is used to generate a portion of the spectral content of the white light output. In alternative embodiments the solid state illumination system produces light output of a selectable color.07-25-2013
20130188385COUPLING-IN APPARATUS FOR COUPLING LIGHT FROM A LIGHT-EMITTING DIODE INTO A FIBER ENTRY END AND LIGHT-SOURCE ARRANGEMENT FITTED THEREWITH - A coupling-in apparatus is provided for coupling light from a light-emitting diode (07-25-2013
20130188387LED LIGHTING SYSTEM COMPRISING AN OPTICAL SYSTEM SUITABLE FOR PROVIDING A LIGHT BEAM - An optical system having a light guide (07-25-2013
20120020108LED LIGHTING DEVICE - An LED lighting device includes at least one circuit board, an encapsulation, a number of LED light sources, and a light guiding member. The LED light sources are distributed on the circuit board. The encapsulation is arranged around the light guiding member. The light guiding member includes two opposite surfaces, at least one of which defines a number of accentuated portions. At least one end of the light guiding member includes a light incident surface opposing the LED light sources. After entering the light guiding member from the light incident surface, the light beams from the LED light sources are reflected between the opposite surfaces of the light guiding member. The light beams reaching the accentuated portions are diffused and exit the light guiding member, and are finally transmitted to outside through the encapsulation.01-26-2012
20120020107LIGHTING SYSTEM AND LIGHT INJECTION COUPLER THEREFOR - A lighting system has one or more light guides capable of guiding light, each comprising a core and two optically smooth faces. A cavity adjacent to two of the optically smooth faces has an opening and a reflective-transmissive surface opposite the opening. A cover having a light source is proximate to and occludes the opening. A major portion of any light emitted from the light source is reflected by the reflective-transmissive surface of the cavity and is injected into the light guides, and a minor portion of any light emitted by the light source is transmitted through the reflective-transmissive surfaces of the cavity and emitted from the lighting system. A light injection coupler is also disclosed that has an optically transmissive housing and suitable for use to couple ends of at least one light guide thereby making a lighting system.01-26-2012
20130194820REDUCED CONTRAST LED LIGHTING SYSTEM - A reduced contrast LED lighting system is disclosed. A plurality optical elements in a fixture is arranged to produce a light pattern with reduced visible contrast between the various areas where light can be perceived leaving the fixture. In some embodiments of the invention the LED light source is disposed at the reflector, and in some such embodiments a partially reflective lens plate is disposed opposite the LED light source. In some embodiments the LED light source is placed opposite the reflector. The lighting system can include a lens arrangement with a partially reflective lens plate connected to a heatsink, or two lens plates adjacent to the LED light source and the heatsink. The fixture can include a plurality of light pipes or slots to direct light into spaces between the lens plates and the heatsink.08-01-2013
20090219732LED WITH LIGHT PIPE ASSEMBLY - An LED light pipe assembly includes a light pipe; a heat sink portion; an LED mounted on a substrate in optical communication with the light pipe; and a carrier portion for receiving the light pipe and providing electrical interconnections to the LED. The heat sink portion includes a plurality of fins and a plurality of hollow frame portions configured to dissipate heat generated by the light pipe assembly. Attachment features are provided on the heat sink for attaching the heat sink to the carrier portion. The heat sink portion also includes a hollow cavity for receiving the substrate. The carrier portion is insertable into the cavity in abutting relation with the substrate to secure the substrate in contact against the heat sink.09-03-2009
20120300488Method and System for Managing Light from a Light Emitting Diode - A light source, for example a light emitting diode, can emit light and have an associated optical axis. The source can be deployed in applications where it is desirable to have illumination biased laterally relative to the optical axis, such as in a street luminaire where directing light towards a street is beneficial. The source can be coupled to an optic that comprises an inner surface facing the source and an outer surface that is opposite the inner surface. The inner surface can comprise a refractive surface that receives light headed away from the optical axis of the light source, for example opposite the street. The refractive surface can form the received light into a beam. The outer surface of the optic can reflect the beam back across the optical axis, for example so that light headed away from the street is redirected towards the street.11-29-2012
20120087144LED ILLUMINATION DEVICE - The invention discloses a LED illumination device comprising a LED light source and a light guide device. The LED light source provides a light. The light guide device comprises a light-receiving surface, a light-emitting surface, and a body. The light-receiving surface receives the light from the light source. The body has a light channel for guiding the light toward the light-emitting surface. In addition, the body comprises at least one light splitter, and a part of the light within the light channel penetrates the body through the light splitter. Specially, the light guide device with the light splitter can reduce the amount of light emitting devices. The illumination system can be conspicuous at night.04-12-2012
20130208498ILLUMINATION CONVERTER - The disclosure generally relates to illumination converters that are capable of converting light from one geometrical format to another. In particular, the described illumination converters are capable of converting a circular source such as an LED to a linear source useful in an edgelit waveguide, which can be used in a backlight for a display.08-15-2013
20130208497INFUSION LINE IDENTIFICATION LIGHTING SYSTEM - An IV line identification system enables ready identification of an IV line and its associated fluid source and output from other IV lines with their fluid sources and outputs. The IV line identification system includes lights that are coupled to a specific IV line. The lights can identify specific locations on the IV line, such as an entry end by an IV bag and an output end by a needle or port associated with a patient. The lights can also identify the portions of the IV line that enter and exit a pump. The lights can also be selectively turned on when a specific IV line needs to be identified, and turned off when the IV line does not need to be individually identified. The lights may be colored to distinguish between the lights associated with another IV line.08-15-2013

Patent applications in class Light Emitting Diode (LED)