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359results about How to "Good light distribution" patented technology
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Vehicle headlight
ActiveUS20110249460A1Good light distributionIncrease awarenessNon-electric lightingVehicle headlampsPhosphorSubject matter
A vehicle headlight including a common light distribution unit and a variable light distribution unit and a headlight system including the headlight can form a common light distribution pattern and a variable light distribution pattern using the common and the variable light distribution units. The variable distribution unit can include a light source, a phosphor panel, a mirror reflecting / scanning light emitted from the light source onto the phosphor panel and a projector lens projecting the scanning light adjacent the common light distribution pattern. The headlight system can include a front sensor detecting a surrounding condition, and can control the common and the variable light distribution units to form an optimum light distribution pattern in accordance with surrounding conditions. Thus, the disclosed subject matter can provide a headlight system including a headlight that can form an optimum light distribution pattern in accordance with surrounding conditions and can have a simple structure.
Owner:STANLEY ELECTRIC CO LTD
Self-ballasted solid state lighting devices
ActiveUS20080130298A1Reduce energy consumptionGood light distributionPoint-like light sourceVehicle interior lightingSolid-stateElectricity
A lighting device, comprising a light engine housing, a light engine comprising one or more solid state light emitters, a diffuser and an energy forwarding element which receives AC voltage and supplies power to the light engine. The light engine housing comprises an electrical connection region which is engageable with an electricity supply device. The light engine housing comprises a first compartment, in which the light engine is positioned and a second compartment. The light engine housing comprises a flange region. The first compartment has an opening which is covered by the diffuser. The lighting device can be mounted such the only elements which are visible from a room are the flange region, a front side of the diffuser and any portion of the first compartment which is between the opening and the open end of the light engine housing. The light engine housing can comprise heat-dissipating fins.
Owner:IDEAL IND LIGHTING LLC
Semiconductor light source apparatus and lighting unit
InactiveUS20110116253A1Prevent be colorFavorable light distributionPoint-like light sourceProjectorsColor toneLight source
A semiconductor light source apparatus can adjust a color tone of white light. The semiconductor light source apparatus can include a phosphor wheel, a motor rotating the phosphor wheel, a light source and a moving module. The phosphor wheel can include at least one phosphor layer configured to emit excited light. The phosphor wheel can vary a mixing ration of white light that is created by light emitted from the light source and the light excited by the at least one phosphor layer in accordance with a position of the phosphor wheel emitted by the light source. The moving module that is connected to the motor can adjust the position of light emitted from the light source. Thus, the disclosed subject matter can provide a semiconductor light source apparatus that can adjust a color tone of white light and a lighting unit using the light source apparatus, which can be used for a projector, lamp, etc.
Owner:STANLEY ELECTRIC CO LTD
Passive collimating tubular skylight
InactiveUS6363667B2Convenient lightingImproved passive tubular skylightsBuilding roofsCeilingsEngineeringSpecular reflection
Owner:ENTECH INC
Lens, light source unit, backlight apparatus, and display apparatus
InactiveUS20090207586A1Reduce thicknessSuppressing luminance variability variabilityPlanar light sourcesPoint-like light sourceCamera lensLight guide
A lens diffusing light emitted from a light source includes a concave light-incident surface, a light guide portion, and a light-emitting surface. The light-incident surface includes a plane portion opposed to the light source and an optical function portion that is formed on the plane portion and one of scatters and diffuses the light. The light emitted from the light source enters the light-incident surface. The light that has entered the light-incident surface passes through the light guide portion. The light-emitting surface emits the light passed through the light guide portion.
Owner:SATURN LICENSING LLC
LED light tube with dual sided light distribution
ActiveUS20110235318A1Uniform light distributionImprove light distribution uniformityPlanar light sourcesPoint-like light sourceEngineeringLED lamp
Disclosed herein are embodiments of LED-based lights for use in fluorescent fixtures that emanate light in a plurality of directions. One embodiment disclosed herein of an LED light for use in a fluorescent light fixture comprises a housing and a circuit board having a first surface configured to face an illumination area, the circuit board mounted in the housing and defining a plane conceptually dividing the housing into a first portion and a second portion. At least one LED is mounted on the first surface of the circuit board and is configured to emanate light in a first direction. Light distribution means is configured to distribute a portion of the light emanated in the first direction to at least a second direction different than the first direction.
Owner:ILUMISYS
Vehicle lamp
InactiveUS20090257240A1Good light distributionSimple structureVehicle headlampsPoint-like light sourceCamera lensOptoelectronics
A vehicle lamp including a projector headlight using an LED light source for a low beam can include a shade, an LED light source, an ellipsoidal reflector and a projector lens. Both a focus of the projector lens and a top edge of the shade can be located near a second focus of the reflector. The LED light source can be located near a first focus located below the second focus of the reflector. Therefore, light emitted from the LED light source can be effectively gathered near the focus of the projector lens via the reflector and can be projected via the projector lens with high light use-efficiency. The projector lens can include light dispersing portions or structures on an upside and downside thereof for reducing chromatic aberration. Thus, the lamp can project a favorable light distribution that can conform to light distribution standards for vehicle headlights and the like.
Owner:STANLEY ELECTRIC CO LTD
Enhanced light fixture with volumetric light scattering
ActiveUS8430548B1Effective controlProvide spatial luminance uniformityPlanar light sourcesMechanical apparatusIlluminanceReduced size
An enhanced light fixture containing a volumetric diffuser to control the spatial luminance uniformity and angular spread of light from the light fixture is disclosed. The volumetric diffuser provides increased spatial luminance uniformity and efficient control over the illuminance such that power reductions, reduced cost or reduced size may be achieved. The volumetric diffuser contains one or more regions of volumetric light scattering particles. The spread of illumination of light from a light emitting source can be efficiently controlled by using a thin, low cost, volumetric, diffuser to direct the light in the desired direction. This allows the reduction in number of light sources, a reduction in power requirements, or a more tailored illumination. When the volumetric diffuser is used in combination with a waveguide to extract light, the light is efficiently coupled out of the waveguide in a thin, planar surface. This transmissive diffuser can be coupled to a reflecting element such that the resulting combination is a light reflecting element with a desired light scattering profile.
Owner:MASSACHUSETTS DEV FINANCE AGENCY +1
Fly's Eye Lens Short Focal Length Solar Concentrator
InactiveUS20080185034A1Solve the large heat dissipationShort focal lengthPrinted circuit assemblingPV power plantsElectrical conductorSurface mounting
A compact solar concentrator photovoltaic module assembly includes a plurality of rear contact solar cells configured in a matrix array on a substrate. The substrate is comprised of conductors laminated to an insulator sheet to form a receiver sheet. A lens sheet on which many lenses have been formed is disposed in a fixed spaced relation to the substrate and operates to focus sunlight onto the active surfaces of the PV cells. The overall thickness of the concentrator module is less than four inches thick. The receiver sheet may be assembled using standard, surface mount printed circuit board assembly techniques. The receiver sheet may have a secondary optical element and may also serve as part of the encapsulant for environmental protection.
Owner:CORIO RONALD P
Light emitting diode device
InactiveUS20060065957A1Efficient ConcentrationDistanceSemiconductor/solid-state device detailsSolid-state devicesEngineeringLead frame
A plurality of separate lead frames can be insert-molded in a reflector composed of a white resin having a high reflectivity to form a package for an LED device. A cavity is formed in the reflector. The cavity can have an inner circumferential surface that opens wider in an upward direction. Cups can be located in the cavity. Each cup has an outer wall that can be in the form of a cylinder with the bottom formed of each of two separate lead frames. A red LED chip and a green LED chip can be adhesively fixed to the lead frames located on the bottoms of the respective cups. The LED chips can have lower electrodes, which are electrically brought into conduction with the lead frames one by one. The LED chips can also have upper electrodes, which are electrically brought into conduction with the lead frames one by one via bonding wires. A light transmissive resin can be filled in the cavity.
Owner:STANLEY ELECTRIC CO LTD
Semiconductor light emitting device
ActiveUS20100072501A1Good light distributionEasily and uniformly diffusesSemiconductor devicesSlope angleSteep slope
A semiconductor light emitting device which includes at least one concave on a light extraction surface opposite to a surface on which a semiconductor stack comprising a light emitting layer between a n-type semiconductor layer and a p-type semiconductor layer is mounted. The concave has not less than two slopes each having a different slope angle in a direction that a diameter of the concave becomes narrower toward a bottom of the concave from an opening of the concave and a slope having a gentle slope angle is provided with irregularities and a slope having a steep slope angle is a flat surface.
Owner:NICHIA CORP
Intelligent ecological greenhouse system based on solar light supplement and geothermal insulation
InactiveCN102487754AImprove growing conditionsImprove efficiencyClimate change adaptationRenewable energy machinesSolar lightRainwater harvesting
The invention provides an intelligent ecological greenhouse system based on solar light supplement and geothermal insulation. The system comprises a greenhouse, a water accumulation and feed device, a fertilization device, a solar light condensation device, an optical fiber receiver, an optical fiber light splitter, a light supplement lamp, a solar photovoltaic generation device, a geothermal pump, hot water heat-radiating fins, a water curtain cooler, a CO2 generation device, a constant-flow ventilating window, a temperature sensing device, a humidity sensing device, a photosensitive sensor, a video monitor device, a CO2 sensing device, a rainwater collection pool, a storage battery, a power supply controller, an inverter, a control host, a monitor, a mains supply and the like, wherein electric power of a solar photovoltaic module and electric power of the mains supply are respectively supplied to the geothermal pump and the control host as well as a water feed pump and the light supplement lamp; and the control host respectively receives different signals of the temperature sensing device, the humidity sensing device, the photosensitive sensor and the CO2 sensing device to control respective terminal devices, respectively performs light supplement, temperature insulation, watering, fertilization and CO2 adjustment, and carries out remote monitoring at the same time.
Owner:王干
Vehicle lamp
InactiveUS20080266890A1Improved side visibilityImprove visibilityVehicle headlampsPoint-like light sourceEngineeringLight source
Owner:KOITO MFG CO LTD
Integrated shield-gasket member in LED apparatus
ActiveUS7637630B2Facilitates accurate manufactureImprove efficiencyCoupling device connectionsPlanar light sourcesEngineeringFlange
An LED apparatus for illumination toward a preferential side in a downward and outward direction including a shield-gasket member in the form of a layer positioned over LED packages and secondary lens members. The shield-gasket member has a shield portion and a substantially planar gasket portion thereabout. In preferred embodiments the shield portion extends over a part of the lens portion of the secondary lens member. A cover preferably secures the shield-gasket member with respect to the secondary lens member, the primary lens and the LED package, the shield-gasket member is preferably sandwiched between the cover and the flange of the secondary lens member.
Owner:IDEAL IND LIGHTING LLC
Mobile telephone device having camera and illumination device for camera
InactiveUS20050253923A1Reduce the amount presentHigh light transmittanceTelevision system detailsColor television detailsEffect lightEngineering
A light which can emit light continuously can be added to a cellular phone (1) while demands for reduction in size, weight, and thickness are being satisfied; by providing a cellular phone equipped with a camera (13) for taking a moving picture of a subject, with a lighting device (12) for illuminating a subject by means of a light-emitting diode, a switching device (21) for turning on a lighting device (12), a light distribution lens for condensing light radiated from the lighting device (12) toward the subject, and a transparent cover for protecting the light distribution lens on the subject side, which is the front side, of the lighting device (12).
Owner:MITSUBISHI ELECTRIC CORP
LED lens and light emitting device using the same
ActiveUS20130155690A1Improve light uniformityEffective divergence anglePoint-like light sourceGlobesLight beamLight emitting device
An LED lens and a light emitting device using the same are disclosed. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a first recession portion disposed at the central thereof and a protrusion portion connected to the outer periphery of the emitting recession portion. The light incident surface comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface, and has a second recession portion; the second optically active area is a concave surface connected to the first optically active area. The LED lens satisfies specific conditions. The LED lens distributes a light beam emitted from the light emitting device to form an even light pattern.
Owner:E PIN OPTICAL IND
Organic electroluminescent device having host material layer intermixed with luminescent material
InactiveUS6876144B2Good light distributionOvercome problemsDischarge tube luminescnet screensElectroluminescent light sourcesHost materialOrganic electroluminescence
The present invention discloses a white light emitting organic electroluminescent (EL) device able to directly emit continuous full color light containing three different frequency bands and a method for manufacturing such an organic electroluminescent device. The device comprises: a first conductive layer having a first conductive type; a first carrier transmission layer; a second carrier blocking layer; a first host material layer formed on the first conductive layer, wherein the first host material layer is doped with a first guest luminescent material so as to cast a first color light source under a bias voltage; a second host material layer formed on the first host material layer, wherein the second host material layer is doped with a second guest luminescent material so as to cast a second color light source under the bias voltage; a third host material layer formed on the second host material layer, wherein the third host material layer is doped with a third guest luminescent material so as to cast a third color light source under the bias voltage; a first carrier blocking layer; a second carrier transmission layer; and a second conductive layer having a second conductive type formed on the third host material layer.
Owner:PENG KUAN CHANG
LED light tube with dual sided light distribution
ActiveUS9057493B2Uniform light distributionImprove light distribution uniformityPlanar light sourcesPoint-like light sourceEngineeringFluorescent light
Disclosed herein are embodiments of LED-based lights for use in fluorescent fixtures that emanate light in a plurality of directions. One embodiment disclosed herein of an LED light for use in a fluorescent light fixture comprises a housing and a circuit board having a first surface configured to face an illumination area, the circuit board mounted in the housing and defining a plane conceptually dividing the housing into a first portion and a second portion. At least one LED is mounted on the first surface of the circuit board and is configured to emanate light in a first direction. Light distribution means is configured to distribute a portion of the light emanated in the first direction to at least a second direction different than the first direction.
Owner:ILUMISYS
Light-emitting device
ActiveUS20050056831A1High efficiency of light extractionEnhanced light scatteringDischarge tube luminescnet screensLamp detailsRefractive indexWavelength
A foam-holding body 52 having a large difference in refractive index between foams 521 and the surrounding material is disposed on the major light extraction surface of the sapphire substrate 50. The foam-holding body 52 has translucency to light of a light-emitting wavelength and is formed of a material such as a silicone or the like, having a refractive index equal to or more than 1.77, and includes a foam-holding layer holding a plurality of foams made of an air or an inactive gas having a refractive index of about one. Therefore, when the light emitted in the light-emitting portion scatters in the foam-holding body 52, the spread of the scattered light becomes wide, which restricts repetition of the total reflection in the light-emitting device to improve an efficiency of the light extraction.
Owner:TOYODA GOSEI CO LTD
Backlight module and reflector thereof
ActiveUS7513670B2Good light distributionPlanar/plate-like light guidesReflectorsLight guideLight beam
A backlight module (70) includes a light guide plate (72), a light source (74), a micro reflector array (723), and a reflector (76). The light guide plate includes a light input surface (722) facing the light source, a light output surface (724) adjacent to the light input surface, and a reflective surface (726) opposite to the light output surface. The light source and an emitting surface (744) thereof both face the light input surface. The micro reflector array and the reflector are configured for cooperatively coupling a first portion of the light beams into the light input surface via any corresponding microgap and reflecting a second portion of the light beams into the light guide plate at a location distant from the light source.
Owner:TSINGHUA UNIV +1
Vehicle headlight
InactiveUS20100309679A1Improved farawayImproved distance visibilityVehicle headlampsOptical signallingEffect lightDistribution pattern
A projector headlight for a low beam can include a first and second lighting unit. Each of the first and second lighting units can include an LED light source, an ellipsoidal reflector, a projector lens and a shade. Light emitted from the LED light source can form a light distribution pattern from the projector lens via the ellipsoidal reflector by shielding an upwards portion of the light with the shade. The shade of the second lighting unit may be configured so as not to project light on a specific point under a cut-off line on an oncoming lane using a convex portion thereon. Therefore, the first lighting unit can project light with a maximum light intensity at the specific point so as to overlap the light distribution pattern formed by the second lighting unit. Thus, the projector headlight can perform a favorable light distribution pattern that can conform to a light distribution standard for headlights.
Owner:STANLEY ELECTRIC CO LTD
Semiconductor light emitting device and method for manufacturing the same
ActiveUS20100264443A1Fabrication process be shortenIncrease light extractionSemiconductor devicesDistribution characteristicSemiconductor
A semiconductor light emitting device having high reliability and excellent light distribution characteristics is provided. Specifically, a semiconductor light emitting device 1 is provided with an n-electrode 50, which is arranged on a light extraction surface on the side opposite to the surface whereupon a semiconductor stack 40 is mounted on a substrate 10. A plurality of convexes are arranged on a first convex region 80 and a second convex region 90 on the light extraction surface. The second convex region 90 adjoins to the interface between the n-electrode 50 and the semiconductor stack 40, between the first convex region 80 and the n-electrode 50. The base end of the first convex arranged in the first convex region 80 is positioned closer to alight emitting layer 42 than the interface between the n-electrode 50 and the semiconductor stack 40, and the base end of the second convex arranged in the second convex region 90 is positioned closer to the interface between the n-electrode 50 and the semiconductor stack 40 than the base end of the first convex.
Owner:NICHIA CORP
Headlight controller, optical unit and vehicle headlight
ActiveUS20130242100A1Good light distributionEasy to driveVehicle headlampsColor television detailsControl signalDistribution pattern
A headlight controller, an optical unit and a vehicle headlight can include a headlight controller and an optical unit. The headlight controller can include a system controller and a camera photographing vehicles located in a forward direction thereof, and the system controller can be configured to output a control signal to provide various favorable light distribution patterns by using image data output from the camera in accordance with traffic conditions. The optical unit can be configured to emit beam lights each having a light-emitting angle using lights emitted from first and second white LEDs via a projector lens so that the beam lights can be used as a high and low beam without movable parts. Thus, the disclosed subject matter can include providing vehicle headlights that can form various favorable light distribution patterns by utilizing the characteristics of the controller and the optical unit in accordance with the traffic conditions.
Owner:STANLEY ELECTRIC CO LTD
LED lighting unit and vehicle lamp
InactiveUS20090251916A1Favorable light distributionExcellent outside appearanceNon-electric lightingVehicle headlampsLight sourceEngineering
An LED lighting unit, and a vehicle lamp using the LED lighting unit can have a favorable light distribution that can be perceived as a single, integrated lighting surface. The LED lighting unit can include a plurality of base boards, a plurality of LED light sources located on each mounting surface of the base boards, a plurality of parabolic reflectors and at least one V-shaped reflector configured to locate between the adjacent parabolic reflectors. Because each of the LED light sources is located substantially at each focus of the parabolic reflectors and the at least one V-shaped reflector, light emitted from the LED light sources can be illuminated as a single, integrated light via their reflectors. Thus, a vehicle lamp using the LED lighting unit can have a favorable light distribution that can be perceived as a single, integrated lighting surface and which can be used for a headlight, a tail lamp, etc.
Owner:STANLEY ELECTRIC CO LTD
Semiconductor light-emitting device and manufacturing method
ActiveUS20110235355A1Avoid deformationImprove linearityPoint-like light sourcePortable electric lightingEngineeringDiffuse reflection
A semiconductor light-emitting device and a method for manufacturing the same can include a wavelength converting layer encapsulating at least one semiconductor light-emitting chip in order to emit various colored lights including white light. The semiconductor light-emitting device can include a base board, a frame located on the base board, the chip mounted on the base board, the wavelength converting layer formed around the chip, a transparent plate located on the wavelength converting layer and a diffusing reflection member disposed between the frame and both side surfaces of the wavelength converting layer and the transparent plate. The device can be configured to improve the linearity of a boundary between the diffusing reflection member and both side surfaces by using the transparent plate, and therefore can be used for a headlight that can form a favorable horizontal cut-off line corresponding to the boundary via a projector lens without a shade.
Owner:STANLEY ELECTRIC CO LTD
Light emitting device and illumination apparatus including same
ActiveUS20120275150A1Reduce directivityGood light distributionPoint-like light sourceLighting support devicesLight emitting deviceSolid-state
A light emitting device includes a plurality of solid-state light emitting elements; a board on which the solid-state light emitting elements are arranged in the form of an array; and a light distribution adjusting member for adjusting a distribution of lights outputted from the solid-state light emitting elements. The light distribution adjusting member is provided to commonly cover at least two of the solid-state light emitting elements, and includes an accommodating portion which accommodates the solid-state light emitting elements; a concave curved surface portion provided above light output surfaces of the solid-state light emitting elements and immediately above the solid-state light emitting elements; and a pair of convex curved surface portions which are provided in opposite sides of the concave curved surface portion, each of the convex curved surface portions being smoothly connected to the concave curved surface portion.
Owner:PANASONIC CORP
Passive collimating tubular skylight
InactiveUS20010013207A1Convenient lightingImproved passive tubular skylightsBuilding roofsCeilingsCeiling levelSpecular reflection
A passive collimating tubular skylight consisting of a radiant energy-collecting aperture, a radiant energy-delivering aperture, and a radiant energy passageway between these two apertures, the passageway having a specularly reflective interior surface and a configuration to improve the collimation of the radiant energy passing therethrough. The skylight can be configured with the radiant energy-collecting aperture located above the roof of a building, oriented to collect sunlight; and equipped with a sealed weatherproof glazing, with the radiant energy-delivering aperture, or luminaire, located at ceiling level within the building, and equipped with a diffusing glazing; and with the reflective tubular light passageway constructed with a larger cross sectional area near the radiant energy-delivering aperture than near the radiant energy-collecting aperture. In complete accord with the second law of thermodynamics, and as proven by experimental results, the new passive collimating tubular skylight provides significant advantages over the prior art, including better solar energy collection, higher throughput optical efficiency, improved radiant energy collimation, enhanced interior illumination levels, and more precise positional control of the interior illumination.
Owner:ENTECH INC
Vehicle headlamp
ActiveUS20100165653A1Reduce component countReduce weightVehicle headlampsLighting support devicesMiniaturizationDistribution pattern
A vehicle headlamp is provided with semiconductor-type light sources, lenses, a reflector, light shading members, prism members, and a switching device. When the light shading members are positioned in a first location by means of the switching device, a light distribution pattern LP for low beam, having one or more cutoff lines, is illuminated. In addition, when the prism members are positioned in the first location by means of the switching device, a light distribution pattern HP for high beam is illuminated. As a result, the vehicle headlamp can achieve downsizing, weight reduction, power saving, and cost reduction.
Owner:ICHIKOH IND LTD
Vehicle rearview mirror including a light-emitting diode apparatus
InactiveUS7334923B2Good light distributionReduce power consumptionMechanical apparatusLighting support devicesLight guideOptical axis
A vehicle rearview mirror including a housing, a mirror, an LED that has a light emitting element and plane-radiates light in a direction nearly vertical to the optical axis of the light emitting element, and a light-guiding member in which at least the one LED is incorporated at a predetermined position. The light-guiding member has a light reflection surface that reflects light to be plane-radiated from the LED and that allows the reflected light to be radiated in a desired direction, and a light radiation surface that allows direct light to be directly emitted from the LED and the reflected light to be externally radiated by the light radiation surface.
Owner:TOYODA GOSEI CO LTD
Vehicle headlight
ActiveUS20140003070A1Increase awarenessSimple structureNon-electric lightingVehicle headlampsSubject matterDistribution pattern
A vehicle headlight can form a variable light distribution pattern with a simple structure including a favorable fail-safe. The headlight can include a movable mirror facing a light source unit, a static mirror between the movable mirror and the light source unit and a controller to emit light from the light source unit and to scan the light toward the static mirror using the movable mirror having a default position, where receives the light at a position substantially perpendicular thereto. The controller can enable the headlight to provide various light distribution patterns by varying a scanning method and the movable mirror is configured to return the light toward the light source unit even if it fails to operate properly. Thus, the disclosed subject matter can provide a vehicle headlight that can form various light distribution patterns in accordance with surroundings and can have the simple structure including the favorable fail-safe.
Owner:STANLEY ELECTRIC CO LTD
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