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90 results about "Stack light" patented technology
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Stack lights (aka: signal tower lights, indicator lights, AndOn lights, warning lights, industrial signal lights, tower lights and light towers) are commonly used on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine state or process event to machine operators, technicians, production managers and factory personnel.
Two-dimensional laser diode array light-emitting device
InactiveUS6934309B2Reduce manufacturing costSimplify the electrical connection structureOptical wave guidanceSemiconductor laser arrangementsManufacturing cost reductionElectrical connection
A two-dimensional LD (laser diode) array light-emitting device constituted by stacking light-emitting units each having a LD bar and a cooling assembly for cooling the LD bar with a simplified electrical connection structure to reduce manufacturing cost. The cooling assembly is electrically connected with one electrode of the LD bar through the die spacer so that a part of the cooling assembly serves as one electrode of the light-emitting unit. The other electrode of the LD bar is electrically connected with a webbed extending section of a conductive layer of a TAB (tape-automated bonding) sheet so that the conductive layer serves as the other electrode of the light-emitting unit. A space between the adjacent cooling assemblies for arranging the LD bar is adjusted by the spacer sheet intervened between the TAB sheet and the cooling assembly.
Owner:FANUC LTD
Stacked light emitting diode array structure
InactiveUS20140284633A1Easy to manufactureLower the volumeSolid-state devicesSemiconductor devicesElectrical conductorLed array
The present invention provides a stacked LED array structure, comprising a substrate and a plurality of LED dies stacked on the substrate in turn. Each LED die comprises a first semiconductor layer and a second semiconductor layer. The first semiconductor layer is provided thereon with a first electrode and stacked with the second semiconductor layer, while the second semiconductor layer is provided thereon with a second electrode and stacked with the first semiconductor layer of another LED die. The second electrode of each LED die is connected to the first electrode of another LED die in series via a metal layer to from an LED array. A plurality of LED dies may be stacked to be an LED array in a stacked manner, resulting in not only easy manufacturing, but also an effectively reduced volume for arranging the whole LED array.
Owner:MEILU SCI & TECH
Semiconductor light emitting device with stacked light emitting elements
InactiveUS7119487B2Easy to manufactureImprove accuracySolid-state devicesSemiconductor/solid-state device manufacturingLithographic artistLength wave
A light emitting device which can be easily manufactured and can control the positions of light emission precisely, and an optical device. A first and second light emitting elements are formed on one face of a supporting base. The first light emitting element has an active layer made of GaInN mixed crystal on a GaN-made first substrate on the side thereof on which the supporting base is disposed. The second light emitting element has lasing portions on a GaAs-made second substrate on the side thereof on which the supporting base is disposed. Since the first and second light emitting elements are not grown on the same substrate, a multiple-wavelength laser having the output wavelength of around 400 nm can be easily obtained. Since the first substrate is transparent in the visible region, the positions of light emitting regions in the first and second light emitting elements can be precisely controlled by lithography.
Owner:SONY GRP CORP
Light emitting diode and data transmission and reception apparatus
InactiveUS9905725B2Reduce manufacturing costIncrease modulation bandwidthClose-range type systemsPhotonic quantum communicationLength waveData transmission
A light emitting diode, including a semiconductor epitaxial structure, a first electrode and a second electrode is provided. The semiconductor epitaxial structure includes a plurality stacked light-emitting layers, and each of the light-emitting layers respectively emits different range of wavelength of light. The first electrode is electrically connected to the semiconductor epitaxial structure. The second electrode is electrically connected to the semiconductor epitaxial structure. Furthermore, a data transmission and reception apparatus is provided.
Owner:SOUTHERN TAIWAN UNIVERSITY OF TECHNOLOGY
Indicator light tower technology
A light tower or stack light including an exterior which has a cylindrical or columnar configuration including transparent or translucent panels or lenses, and a interior based on a flat, planar arrangement of light sources. The light tower translates the flat, essentially unidirectional or bidirectional arrangement of lights to a 180 to 360 degree, multidirectional light source. The light indicator tower is for use with a industrial apparatus or process to indicate the status of the apparatus or process. The tower includes a flat, planar, PCB light panel having two sides, the light panel further having a plurality of LED light sources disposed on each side of the light panel. The tower has a curvilinear light dispersing lens disposed to disperse light over a range of 360 degrees.
Owner:CLORE LEE
Stack Light with Modular Power Converter
InactiveUS20150198317A1Reduce in quantityNarrow downLighting applicationsLighting support devicesOptical ModuleTransverter
A power converter is introduced into a stack light in the form of a compatible modular element that fits between the base and a light module. By converting multiple input voltages to a common core voltage in a module distinct from the base and light modules, proliferation of different varieties of base modules and light modules may be reduced without impact on customer selection.
Owner:ROCKWELL AUTOMATION TECH
Semiconductor light emitting device with stacked light emitting elements
InactiveUS6956322B2Easy to manufactureImprove accuracyDischarge tube luminescnet screensSemiconductor laser arrangementsLithographic artistLength wave
A light emitting device which can be easily manufactured and can control the positions of light emission precisely, and an optical device. A first and second light emitting elements are formed on one face of a supporting base. The first light emitting element has an active layer made of GaInN mixed crystal on a GaN-made first substrate on the side thereof on which the supporting base is disposed. The second light emitting element has lasing portions on a GaAs-made second substrate on the side thereof on which the supporting base is disposed. Since the first and second light emitting elements are not grown on the same substrate, a multiple-wavelength laser having the output wavelength of around 400 nm can be easily obtained. Since the first substrate is transparent in the visible region, the positions of light emitting regions in the first and second light emitting elements can be precisely controlled by lithography.
Owner:SONY CORP
Stacked organic light-emitting device
InactiveUS20110095702A1Electroluminescent light sourcesSolid-state devicesOrganic light emitting deviceEngineering
A stacked organic light-emitting device is provided. The stacked organic light-emitting device includes a first electrode, first and second light-emitting units formed under and on the first electrode respectively, transparent or semi-transparent second and third electrodes formed under the first light-emitting unit and on the second light-emitting unit respectively, and having the same polarity, and a drive controller electrically connected with the first, second and third electrodes to connect the first and second light-emitting units in parallel, and capable of controlling at least one of the first and second light-emitting units to emit light. Accordingly, the organic light-emitting device has a lower driving voltage than a conventional stacked light-emitting device in which light-emitting units are serially connected.
Owner:ELECTRONICS & TELECOMM RES INST
Light Emitting Device Having Vertically Stacked Light Emitting Diodes
ActiveUS20080211400A1Improving light output per unit areaImprove light outputDischarge tube luminescnet screensLamp detailsActive layerLight emitting device
Disclosed is a light emitting device having vertically stacked light emitting diodes. It comprises a lower semiconductor layer of a first conductive type positioned on a substrate, a semiconductor layer of a second conductive type on the lower semiconductor layer of a first conductive type, and an upper semiconductor layer of a first conductive type on the semiconductor layer of a second conductive type. Furthermore, a lower active layer is interposed between the lower semiconductor layer of a first conductive type and the semiconductor layer of a second conductive type, and an upper active layer is interposed between the semiconductor layer of a second conductive type and the upper semiconductor layer of a first conductive type. Accordingly, there is provided a light emitting device having a structure in which a lower light emitting diode comprising the lower active layer and an upper light emitting diode comprising the upper active layer are vertically stacked. Therefore, light output per unit area of the light emitting device is enhanced as compared with a conventional light emitting device, and thus, a chip area of the light emitting device needed to obtain the same light output as the conventional light emitting device can be reduced.
Owner:SEOUL VIOSYS CO LTD
Manufacturing method of TFT substrate and prepared TFT substrate
ActiveCN105633016AReduce the number of masksIncrease productivitySolid-state devicesSemiconductor/solid-state device manufacturingElectrical conductorEtching
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
LCD backlight component coatings for reducing light losses and improving in-stack light collimation
InactiveUS20140133177A1Low costEfficient backlightMechanical apparatusPlanar/plate-like light guidesCross-linkSolubility
Provided are multilayer stacks for backlight units in LCD panels and methods for forming thereof. The stacks include refractive index matching layers and pressure sensitive adhesives to minimize light losses. More particularly, the stacks comprise a reflector, a light guide, a course diffuser, one or more brightness enhancing films, and a fine diffuser. A refractive index matching layer is deposited onto at least one surface of the backlight components. A pressure sensitive adhesive is deposited onto the refractive index matching layers. Alternatively, the stacks comprise two or more refractive index matching layers on each surface of the backlight components and retain an air gap between the backlight components. The refractive index matching interlayers are based on a polymer solution having about 0.1%-30% by weight of specific rigid rod-like polymer molecules. The molecules may include various cores, spacers, and sides groups to ensure their solubility, viscosity, and cross-linking ability.
Owner:LIGHT POLYMERS HLDG
Systems for providing backlight module with stacked light source
A system for providing a backlight module has a light guide plate and at least a light source set positioned adjacent to the incident surface. The light source set contains a plurality of light sources stacking along a direction parallel with the incident surface of the light guide plate.
Owner:INNOLUX CORP
Light emitting device having vertically stacked light emitting diodes
ActiveUS20100219426A1Improving light output per unit areaImprove light outputSolid-state devicesSemiconductor/solid-state device manufacturingSemiconductor packageActive layer
Disclosed is a light emitting device having vertically stacked light emitting diodes. It comprises a lower semiconductor layer of a first conductive type positioned on a substrate, a semiconductor layer of a second conductive type on the lower semiconductor layer of a first conductive type, and an upper semiconductor layer of a first conductive type on the semiconductor layer of a second conductive type. Furthermore, a lower active layer is interposed between the lower semiconductor layer of a first conductive type and the semiconductor layer of a second conductive type, and an upper active layer is interposed between the semiconductor layer of a second conductive type and the upper semiconductor layer of a first conductive type. Accordingly, there is provided a light emitting device having a structure in which a lower light emitting diode comprising the lower active layer and an upper light emitting diode comprising the upper active layer are vertically stacked. Therefore, light output per unit area of the light emitting device is enhanced as compared with a conventional light emitting device, and thus, a chip area of the light emitting device needed to obtain the same light output as the conventional light emitting device can be reduced.
Owner:SEOUL VIOSYS CO LTD
Organic electroluminescence display apparatus
InactiveUS20110121753A1Reduce withstand voltageSimple processSolid-state devicesSemiconductor/solid-state device manufacturingActive matrixOrganic layer
The present invention provides a stack type organic electroluminescence display apparatus which can be structured to be an active matrix type. The organic electroluminescence display apparatus of the active-matrix driving system includes: a display region having a plurality of pixels each of which includes at least two subpixels, wherein the subpixels have three or more light-emitting devices stacked thereon each of which is configured by sandwiching between electrodes an organic layer including an emission layer, and any of the emission layers emits a light of different colors from each other and is commonly formed in all pixels; and a circuit for applying voltage to between the electrodes of the light-emitting device, wherein at least one light-emitting device among the stacked light-emitting devices is nonemission-treated.
Owner:CANON KK
Patterned substrate and stacked light emitting diode
InactiveUS20130193448A1Improve crystal qualityPolycrystalline material growthBy pulling from meltCrystal planeEngineering
A patterned substrate is provided, including: a substrate having a (0001) crystal plane and a plurality of alternatively arranged recess structures therein, thereby forming a plurality of alternatively arranged top surfaces; and a dielectric barrier layer covering the bottom surface and / or the sidewalls of the recess structures. Each of the alternatively arranged recess structures includes a bottom surface and a plurality of sidewalls surrounding the bottom surface.
Owner:LEXTAR ELECTRONICS CORP
Systems for providing backlight module with stacked light source
A system for providing a backlight module has a light guide plate and at least a light source set positioned adjacent to the incident surface. The light source set contains a plurality of light sources stacking along a direction parallel with the incident surface of the light guide plate.
Owner:INNOLUX CORP
Spectrometer including vertical stack structure and non-invasive biometric sensor including the spectrometer
ActiveUS20160120410A1Easy to manufactureHigh sensitivity and resolutionRaman/scattering spectroscopyRadiation pyrometryElectricityNon invasive
Provided are a spectrometer that may be easily manufactured while having high resolution and sensitivity due to reduced light loss and a non-invasive biometric sensor including the spectrometer. The spectrometer includes: a stacked light absorbing structure including a plurality of absorbing layers stacked in a vertical direction and having different absorption wavelength bands, and a plurality of tunnel junction layers respectively interposed between the plurality of absorbing layers to electrically connect the plurality of absorbing layers; and an illuminating unit configured to provide the stacked light absorbing structure with an illumination light for saturation of the plurality of absorbing layers.
Owner:SAMSUNG ELECTRONICS CO LTD
Stacked light emitting diode
InactiveUS20050146270A1High intensity effectReduced footprintDischarge tube luminescnet screensLamp detailsLength waveLight-emitting diode
A stacked light emitting diode structure includes a light emitting chip fixed at a stand and stacked thereon with one or more than one smaller light emitting chip. Wherein, the light emitting chips have different illumination wavelengths. The invention is characterized that, a lower-layer light emitting chip is a light-transmissive or opaque chip, a second or a third light emitting chip stacked thereon is necessarily a light-transmissive chip, and between the stacked chips is a light-transmissive insulating material for fixing the chips. When putting the aforesaid structure to use, efficacies as better blended light effects and intensity as well as a reduced occupied area are obtained.
Owner:LIGHTOP TECH
Light emitting diode and data transmission and reception apparatus
InactiveUS20170018679A1Reduce manufacturing costIncrease modulation bandwidthClose-range type systemsPhotonic quantum communicationLength waveData transmission
A light emitting diode, including a semiconductor epitaxial structure, a first electrode and a second electrode is provided. The semiconductor epitaxial structure includes a plurality stacked light-emitting layers, and each of the light-emitting layers respectively emits different range of wavelength of light. The first electrode is electrically connected to the semiconductor epitaxial structure. The second electrode is electrically connected to the semiconductor epitaxial structure. Furthermore, a data transmission and reception apparatus is provided.
Owner:SOUTHERN TAIWAN UNIVERSITY OF TECHNOLOGY
Lateral backlight module, display and light guide plates
InactiveCN107024801AImprove dynamic contrastBrightness independent controlPlanar/plate-like light guidesNon-linear opticsLight guideDisplay device
The invention discloses a lateral backlight module, a display and light guide plates. The lateral backlight module comprises at least two stacked light guide plates, each light guide plate comprises a light emergent surface, a bottom surface and at least one light incident surface, and the bottom surface of the upper light guide plate is opposite to the light emergent surface of the lower light guide plate; light sources are arranged at the light incidence surface of each light guide plate and independent of one another; light emergent zones and total reflection zones are alternately arranged on each light guide plate in the light ray spreading direction of the light sources, and light emitted by the light sources is totally reflected in the total reflection zones; the light emergent zones of each light guide plate of the at least two light guide plates correspond to the total reflection zones of the adjacent light guide plate. With the adoption of the light guide plate structures, the display subzones of the lateral backlight module can be increased, and the dynamic contrast ratio of the lateral backlight module can be increased.
Owner:WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
Lighting system
ActiveUS20070085070A1Little changeStatic indicating devicesElectroluminescent light sourcesColor shiftLighting system
An object of the present invention is to provide a lighting system which uses a stacked light emitting element provided with a plurality of light emitting units and causes little change in emission color even after being used for a long time. A lighting system is provided, which includes a first light emitting element including a plurality of light emitting units; a second light emitting element; a first control means which controls light emission of the first light emitting element; and a second control means which controls light emission of the second light emitting element, where the first light emitting element emits light of a first emission color that is an initial emission color and a second emission color that is an emission color after change over time, and the second light emitting element emits light of a complementary color of the second emission color. With the above structure, color shift due to change over time can be suppressed.
Owner:SEMICON ENERGY LAB CO LTD
Patterned substrate and stacked light emitting diode
InactiveCN103227258AImprove qualityTroubleshooting Unexpected DefectsPolycrystalline material growthBy pulling from meltEngineeringCrystal plane
The present invention provides a patterned substrate and a stacked light emitting diode. The patterned substrate includes: a substrate having a (0001) crystal plane and a plurality of alternatively arranged recess structures therein, thereby forming a plurality of alternatively arranged top surfaces; and a dielectric barrier layer covering the bottom surface and / or the sidewalls of the recess structures. Each of the alternatively arranged recess structures includes a bottom surface and a plurality of sidewalls surrounding the bottom surface.
Owner:LEXTAR ELECTRONICS CORP
Driving method of stacked light modulating device, and driving device of stacked light modulating device
InactiveUS20070046595A1Improve operating profitStable threshold value shifting operationStatic indicating devicesNon-linear opticsSelective reflectionCircular cone
A driving method of a stacked light modulating device for recording an image therein, which includes selective reflection layers each having a cholesteric liquid crystal, reflecting light with different wavelengths within a visible range, and being different in a lower threshold value of texture change from a planar to a focal conic texture with respect to an externally applied voltage and an upper threshold value of texture change from the focal conic to a homeotropic texture, and a pair of electrodes disposed outside, includes applying between the pair of electrodes voltages including a voltage V1 and have a same frequency, to select an area exceeding or not exceeding the upper threshold value in each of the selective reflection layers, and applying voltages including a voltage V2 and have a same frequency different from the voltage V1, to select an area exceeding or not exceeding the lower threshold value.
Owner:FUJIFILM BUSINESS INNOVATION CORP
Vertical stacked light emitting structure
InactiveUS8519428B2Improve efficiencyIncadescent screens/filtersDischarge tube luminescnet screensLight guideLight-emitting diode
A vertical stacked light emitting structure includes a substrate unit, a stacked type light emitting module, and a flip-chip type light emitting module. The substrate unit includes a substrate body. The stacked type light emitting module includes a first light emitting unit and a light guiding unit. The first light emitting unit includes at least one first LED bare chip disposed on and electrically connected to the substrate body, and the light guiding unit includes at least one light guiding body disposed on the first LED bare chip. The flip-chip type light emitting module includes a second light emitting unit. The second light emitting unit includes at least one second LED bare chip disposed on the light guiding body and electrically connected to the substrate body. Hence, the first LED bare chip, the light guiding body, and the second LED bare chip are stacked on top of one another sequentially.
Owner:AZUREWAVE TEHNOLOGIES INC
Improved waveguide and lighting device
InactiveCN101460875ADistributed controlWell mixedMechanical apparatusLight guides for lighting systemsCouplingLight guide
A luminaire comprises a transparent light guiding structure (2), including a stack of transparent, flat panel light guides (3). Each panel light guide has an in-coupling edge (4) adapted to receive light from said light source and couple the light into the light guide, and at least one out-coupling surface (10, 10a) adapted to couple light out of the light guide, wherein the out-coupling surfaces is distributed along a plane of extension of said light guiding structure. The stacked light guiding structure according to the present invention is easy to manufacture even for large sizes, and consists principally of existing elements (flat panel light guides). Also, an improved transparency can be achieved with the design.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Compact optical gyroscope and method of manufacturing the same
InactiveUS6885456B2Fine structure can be easilyEliminate needLaser detailsSpeed measurement using gyroscopic effectsElectrical conductorOptical gyroscope
An optical gyroscope (100) has a detection light guide body (100S) and a light measuring board (140). The detection light guide body (100S) is formed by stacking light guide layers (110, 120) and protective layers (130) alternately. An eddy-shaped light guide path section is provided in each of the light guide layers (110, 120), and the light guide path sections are optically connected to each other through said protective layers (130) to form an integral light guide path (100L). One end (100La) of the light guide path (100L) is directly connected to the light measuring board (140), and another end (100Lb) of the same is connected to the light measuring board (140) through an optical fiber (143).
Owner:SEIKO EPSON CORP
System and Method to Collect Status Information From Light Based Indicator Systems Such as Stack Lights, Status Lights, Traffic Lights, Safety Lights
InactiveUS20110273303A1Adjustable positionMinimize the numberPhotometry using reference valueMaterial analysis by optical meansMonitoring statusEngineering
A system and method for monitoring status information from a light based indicator system (e.g., stack lights, status lights, traffic lights or safety lights, etc.). At least one light sensor is positioned adjacent to an existing light indicator system, the existing light based indicator system having at least one indicator light to be monitored. A monitoring device at a location remote from the existing light based indicator system receives signals from the at least one light sensor indicative of a status of the at least one indicator light.
Owner:ILS TECH INC
Organic electroluminescence display apparatus
InactiveUS8395316B2Reduce withstand voltageReduce dataDischarge tube luminescnet screensLamp detailsActive matrixOrganic layer
Owner:CANON KK
Stack light
ActiveUS10309594B1Convenient lightingWell mixedLighting applicationsLight source combinationsResonant cavityTransducer
A stack light with a light section having a housing with a plurality of at least partially translucent side walls and having a plurality of opposing light sources on longitudinally opposite ends of the housing to produce a very even blended light. A stack light system with one or more such light sections also includes a sound section having a hollow housing and a set of interchangeable acoustic chambers configured for insertion into the hollow housing, each chamber including a piezoelectric transducer and having a side wall structure configured to abut an inner side wall surface of the hollow housing, the chamber, transducer and housing together defining a resonant cavity. In one embodiment, an acoustic chamber has a longitudinally extending side wall and a substantially closed end wall, the side wall having adjacent the end wall a plurality of wide lateral openings spaced apart along its perimeter, the openings each having a width in the range of approximately 8-25% of the wavelength of the piezoelectric transducer's fundamental frequency.
Owner:MALLORY SONALERT PRODS
Light-emitting device including light-emitting diode and stacked light-emitting phosphor layers
InactiveUS7897987B2High luminous efficiencySolid-state devicesSpectral modifiersConcentration quenchingEmission efficiency
A light-emitting device includes a light-emitting diode, a red light-emitting phosphor layer, a yellow light-emitting phosphor layer, and a blue light-emitting phosphor layer. These layers are stacked in the stacking sequence of the yellow, blue, and red phosphor layers in order of increasing distance from the LED. The stacking sequence of the yellow and blue phosphor layers is first determined in such a manner that these layers do not interact with each other. The stacking sequence of the red and yellow phosphor layers and the stacking sequence of the red and blue phosphor layers are determined by the discriminant D. This determination of the stacking sequence suppresses a reduction in the conversion efficiency of the phosphors due to concentration quenching, improving the emission efficiency of the light-emitting device.
Owner:TOYODA GOSEI CO LTD
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