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455results about How to "Avoid low light" patented technology
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Electrophoretic dispersion with a fluorinated solvent and a charge controlling agent
ActiveUS7110162B2Improve adsorption capacityImprove surface activityStatic indicating devicesAzo dyesElectrophoresisCharge control
The invention relates to a novel electrophoretic dispersion comprising a fluorinated solvent as the continuous phase, charged pigment particles or pigment containing microcapsules as the dispersed phase, and the charge of the pigment particles is provided by a charge controlling agent comprising:(i) a soluble fluorinated electron accepting or proton donating compound or polymer in the continuous phase and an electron donating or proton accepting compound or polymer in the dispersed phase; or(ii) a soluble fluorinated electron donating or proton accepting compound or polymer in the continuous phase and an electron accepting or proton donating compound or polymer in the dispersed phase.
Owner:E INK CALIFORNIA
Polarizing element, optical element, and liquid crystal display
InactiveUS6661482B2Reduce contrastImprove the display effectStatic indicating devicesNon-linear opticsLiquid-crystal displayPolarizer
Owner:NITTO DENKO CORP
Laser-driven light source
ActiveUS20070228288A1Minimize coolingAvoid low lightNanoinformaticsElectric lighting sourcesOptoelectronicsBrightness perception
An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light.
Owner:HAMAMATSU PHOTONICS KK
Laser-driven light source
ActiveUS7435982B2Minimize coolingAvoid low lightOptical radiation measurementNanoinformaticsBrightness perceptionAtomic physics
An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light.
Owner:HAMAMATSU PHOTONICS KK
Portable light
ActiveUS20060067077A1Adequate heat dissipationGuaranteed uptimePoint-like light sourceLighting elementsElectrical conductorHeat conducting
A portable personal headlamp utilizes an array of light-emitting diodes on the front face of a circuit board. Arc-shaped projections on the front face of a finned heat sink are in heat-conducting relationship with printed conductors on the rear face of the circuit board, which partially surround one lead of each light-emitting diode.
Owner:PRINCETON TECTONICS
Substrates comprising a photocatalytic TiO2 layer
InactiveUS20050191505A1Effective photocatalytic layerReduce light absorptionMaterial nanotechnologyPigmenting treatmentCompound (substance)Concentration gradient
Substrates comprising a photocatalytic layer containing TiO2 are produced using TiO2 particles which may optionally be doped with metallic or non-metallic elements or compounds. The photocatalytic layer exhibits a concentration gradient of the TiO2 particles. An organically modified inorganic hybrid layer may be provided between the substrate and the photocatalytic layer.
Owner:INST FUR NEUE MATERIALIEN GEMEINNUTZIGE GMBH
Medical diagnostic instrument with highly efficient, tunable light emitting diode light source
InactiveUS20060215406A1High strengthImprove evenlyNon-electric lightingLighting support devicesCervical tissueHigh intensity light
A medical diagnostic instrument, such as a colposcope for examining cervical tissue, includes a light source comprising an annular array of high intensity light emitting diodes (LEDs). The LED array includes a central access opening which provides viewing access for the colposcope optical components to the illumination site. The array includes a plurality of sets of LEDs, with each set including a red, blue and green emitting LED. The intensities of the red, blue and green LEDs, respectively, are controllable with a controller to continuously vary or tune the spectral characteristics of the illumination from the light source. Selected color mixes can be stored in a memory for later retrieval.
Owner:ADVANCED ILLUMINATION
Laser-Driven Light Source
ActiveUS20110181191A1Reduce light noiseReduce noiseWave amplification devicesNanoinformaticsBrightness perceptionAtomic physics
An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light.
Owner:HAMAMATSU PHOTONICS KK
High efficiency viewing screen
A low-scatter polarization-preserving multilayer viewing screen. A substrate D, preferably a volume diffuser, for increasing the divergence of information-coded-light while preserving its polarization sense A as it passes therethrough has a discrimination of at least 2:1 within a viewing zone. An absorbing polarizer on one or both sides of D and aligned to pass polarization state A. In one embodiment, there is provided a polarization-state phase-shift layer for modifying the polarization state of forward-scatter and / or back-scatter that total internally reflects within the viewing screen into the state opposite of A. The phase-shift layer being located at any position between the polarizer and an outermost surface of the viewing screen through which said information-coded light passes.
Owner:HONEYWELL INT INC
Laser-driven light source
ActiveUS20090032740A1Reduce errorsMinimize coolingOptical radiation measurementGas-filled discharge tubesBrightness perceptionAtomic physics
An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light.
Owner:HAMAMATSU PHOTONICS KK
Luminous device
InactiveUS20110025190A1Improve luminous efficiencyImprove extraction efficiencyIncadescent screens/filtersDischarge tube luminescnet screensLight emitting deviceSemiconductor
The present invention relates to the field of luminous devices, in particular to a luminous device (1) comprising a light transmissive element (2). The light transmissive element further comprises a semiconductor diode structure (3) for generating light, a reflecting section (22) for reflecting light from the diode structure (3) into the light transmissive element (2) and an output section (21) for outputting light from the diode structure (3). The luminous device (1) further comprises a reflecting structure (4), at least partially enclosing side surfaces of the light transmissive element (2), for reflecting light from the diode structure (3) towards the output section (21).
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Light emitting device comprising light-emitting layer having triplet compound and light-emitting layer having singlet compound
InactiveUS6864628B2Improve light emission efficiencyLow working voltageDischarge tube luminescnet screensElectroluminescent light sourcesTriplet stateHole transport layer
The luminance of different colors of light emitted from EL elements in a pixel portion of a light emitting device is equalized and the luminance of light emitted from the EL elements is raised. The pixel portion of the light emitting device has EL elements whose EL layers contain triplet compounds and EL elements whose EL layers contain singlet compounds in combination. The luminance of light emitted from the plural EL elements is thus equalized. Furthermore, a hole transporting layer has a laminate structure to thereby cause the EL elements to emit light of higher luminance.
Owner:SEMICON ENERGY LAB CO LTD
Light source device of laser LED and projector having the same device
InactiveUS20080143973A1Avoid low lightTelevision system detailsProjectorsColor saturationImage resolution
A mono-panel projector having a light source device of laser LED is provided with at least one laser LED light source, at least one light magnifying element, a cross type color filter, a light guiding element, a prism module, a digital micromirror device, and a projecting lens module. The laser LED light source generates three small-diameter laser beams of red, green, and blue primary colors all of which are magnified by the light magnifying element, and concentrated into a composite laser beam by the cross type color filter. After that, the composite laser beam is guided by the light guiding element, and projected to the digital micromirror device via the prism module for generating images on the digital micromirror device. Then, the images are reflected to the projecting lens module followed by projecting out of the projecting lens module so that the projector of the present invention provides higher resolution, higher sharpness, brighter images, and higher color saturation by the laser LED light source while providing advantages of minimizing volume, lowering power consumption, enhancing reaction speed, elongating life time, and increasing power efficiency.
Owner:HON HAI PRECISION IND CO LTD
Solid-state image pickup device
InactiveUS7030918B1Sufficient light tightnessLow light transparencyTransistorTelevision system detailsPotential changeLight beam
The present invention discloses a solid-state image pickup device in which a photoelectric conversion part having a photoelectric conversion region, and a logic circuit part are formed on a semiconductor substrate, and outputs a potential change caused by the charges generated in the photoelectric conversion region, and is provided with a light shielding layer that covers the logic circuit part, and a light shielding film that defines the region of beam incidence on the photoelectric conversion region, where the light shielding film is provided closer to the semiconductor substrate than the light shielding layer.
Owner:RENESAS ELECTRONICS CORP
High dynamic range imaging device using multiple pixel cells
ActiveUS20070035653A1Improve dynamic rangeReduce Fixed Pattern NoiseTelevision system detailsImage enhancementHigh-dynamic-range imagingVolumetric Mass Density
A method and apparatus for achieving high-dynamic range operation with a set of spatially distributed pixel cells is provided. A pixel array with a row of pixels having apertures of varying sizes in a metal mask formed thereon controls the sensitivity of each pixel cell to light. A neutral density filter having varying light transparency values is also provided over the set of pixel cells to control the sensitivity of each pixel cell to light. The pixel cells voltage outputted is combined to obtain high-dynamic range operation.
Owner:APTINA IMAGING CORP
Light emitting device with translucent ceramic plate
ActiveUS20090212697A1Luminance intensity of lightHigh luminous intensityMaterial nanotechnologyIncadescent screens/filtersLuminous intensityTransmittance
A light emitting device comprising a light emitting component that emits light with a first peak wavelength, and at least one sintered ceramic plate over the light emitting component is described. The at least one sintered ceramic plate is capable of absorbing at least a portion of the light emitted from said light emitting component and emitting light of a second peak wavelength, and has a total light transmittance at the second peak wavelength of greater than about 40%. A method for improving the luminance intensity of a light emitting device comprising providing a light emitting component and positioning at least one translucent sintered ceramic plate described above over the light emitting component is also disclosed.
Owner:SCHOTT AG
Transmission type laminated hologram optical element and image display device comprising this optical element
InactiveUS7139109B2Solve the real problemAvoid low lightNon-linear opticsHologram recording materialViewpointsDisplay device
The present invention is directed to a transmission type laminated hologram optical element constituting an image display apparatus, wherein plural transmission type hologram optical elements (13), (14), (15) where diffraction acceptance incident angles are different from each other are laminated. The respective transmission type hologram optical elements are adapted so that outgoing angles with respect to center incident angles of respective diffraction acceptance incident angles at an arbitrary wavelength of the visible region are different from each other, whereby a diffraction acceptance angle of incident light can be broadened, light utilization efficiency is permitted to be high, and distance with respect to color pixels of the spatial light modulation element can be optimally set from viewpoints of light utilization efficiency.
Owner:SONY CORP
Near Infrared Ray Reflective Substrate And Near Infrared Ray Reflective Laminated Glass Employing That Substrate, Near Infrared Ray Reflective Double Layer Glass
InactiveUS20090237782A1High visible lightImprove insulation effectMirrorsOptical filtersInfraredRefractive index
In a near-infrared reflective substrate prepared by forming on a transparent substrate a near-infrared reflective film prepared by alternate deposition of low-refractive-index dielectric films and high-refractive-index dielectric films, there is provided a near-infrared reflective substrate characterized in that the transparent substrate is a plate glass or polymer resin sheet, that it is 70% or greater in visible light transmittance defined in JIS R3106-1998, and that it has a maximum value of reflection that exceeds 50% in a wavelength region of 900 nm to 1400 nm.
Owner:CENT GLASS CO LTD
Lamp for laser applications
ActiveUS20120026721A1Reduce heat buildupGood optical performanceVehicle headlampsPoint-like light sourceOptical radiationOptoelectronics
The invention relates to a lamp and a method, preferably adapted for generating high power in laser applications. The lamp (1) comprises a source (3) adapted for emitting optical radiation along an optical path and a holder (5) comprising a fluorescent body (4), wherein the holder (5) is arranged in the optical path, a collecting unit (8) is provided which is adapted for transmitting at least a portion of optical radiation emitted by the fluorescent body (4) to an output of the lamp (1), and the fluorescent body (4) comprises a shape being elongated in a predetermined direction. In this way, a small spot and little divergence is provided in conjunction with good heat dissipation leading to a high optical performance.
Owner:SIGNIFY HLDG BV
Light emitting device and method of producing same
InactiveUS20060054913A1Avoid high temperatureLight extraction efficiency can be improvedSolid-state devicesSemiconductor/solid-state device manufacturingLight emitting device
A light emitting device having: a light emitting element; an electricity supply portion on which the light emitting element is mounted and which supplies electricity; and an inorganic sealing material for sealing the light emitting element. The inorganic sealing material has a tapered surface which becomes wider outward in a side surface direction with respect to a center axis of the light emitting element.
Owner:TOYODA GOSEI CO LTD
Laser-driven light source
ActiveUS7989786B2Minimize coolingAvoid low lightOptical radiation measurementGas-filled discharge tubesOptoelectronicsBrightness perception
An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light.
Owner:HAMAMATSU PHOTONICS KK
Method and apparatus for providing back-lighting in an interferometric modulator display device
InactiveUS7603001B2Avoid low lightMore power efficientPhotomechanical apparatusSemiconductor/solid-state device manufacturingEffect lightMicroelectromechanical systems
Owner:SNAPTRACK
Laser-driven light source
ActiveUS8525138B2Minimize coolingAvoid low lightOptical radiation measurementGas-filled discharge tubesBrightness perceptionAtomic physics
An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light.
Owner:HAMAMATSU PHOTONICS KK
High power flip chip LED
InactiveUS7015512B2Increase powerIncrease light emitting areaSemiconductor/solid-state device detailsSolid-state devicesCurrent channelOhmic contact
A high power flip chip LED has an n-doped semiconductor layer formed on the sapphire substrate, with a plurality of first regions and a second region of intersecting lines for separating the first regions from each other. P-doped semiconductor layers are on the first regions of the n-doped semiconductor layer to form mesa structures. At least one pair of diagonal corners of the respective mesa structures are rounded inward to form first basins between adjacent inward-rounded corners. First metal layers are on the mesa structures in a same configuration. A second metal layer is on the second region of the n-doped semiconductor layer. First ohmic contacts are on the first metal layers. Second ohmic contacts are on the second metal layer in the first basins. The LED can prevent the current channeling to increase the luminous area while equalizing the current density area thereby generating high brightness light.
Owner:SAMSUNG ELECTRONICS CO LTD
Recording medium, ink composition and recording method using the same
InactiveUS20050233097A1High resistanceExcellent propertyInksThermographyFluorescenceColor difference
A recording medium containing a substantially colorless compound in which at least 10 atoms having conjugate π electrons are present on a per-molecule basis, wherein it is especially preferable that the compound has at least two aromatic ring groups and / or shows no fluorescence. An ink composition used for printing in image form on media, with the composition containing a dye and controlling a hue change caused in the printed images over a period of one hour immediately after the printing to 5 or below in color-difference terms. And a method of recording images on media by printing an ink composition in image form, wherein the ink composition contains a dye and a hue change caused in the printed images over a period of one hour immediately after the printing is controlled to 5 or below in color-difference terms.
Owner:FUJIFILM HLDG CORP +1
Encapsulated quantum dots in porous particles
ActiveUS20160084476A1High white lightImprove efficacyLiquid surface applicatorsPoint-like light sourceParticulatesQuantum dot
The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with luminescent quantum dots embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the luminescent quantum dots and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said luminescent quantum dots and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.
Owner:LUMILEDS
Film for organic EL device and an organic EL device using the film
InactiveUS6638645B2Excellent gas barrier performanceAvoid low lightDischarge tube luminescnet screensElectroluminescent light sourcesHybrid materialOrganic inorganic
Owner:SAMSUNG DISPLAY CO LTD +1
Portable light
ActiveUS7293898B2Adequate heat dissipationGuaranteed uptimePoint-like light sourceLighting heating/cooling arrangementsElectrical conductorHeat conducting
Owner:PRINCETON TECTONICS
Method and apparatus for providing back-lighting in an interferometric modulator display device
InactiveUS20070196040A1Avoid low lightMore power efficientPhotomechanical apparatusSemiconductor/solid-state device manufacturingEffect lightMicroelectromechanical systems
Methods and apparatus for providing light in an interferometric modulator device are provided. In one embodiment, a microelectromechanical system (MEMS) is provided that includes a transparent substrate and a plurality of interferometric modulators. The interferometric modulators include an optical stack coupled to the transparent substrate, a reflective layer over the optical stack, and one or more posts to support the reflective and to provide a path for light from a backlight for lighting the interferometric modulators.
Owner:SNAPTRACK
Wide dynamic range image sensor pixel cell
ActiveUS10397500B1Image be limitedHigh image qualityTelevision system detailsColor television detailsImage sensorRolling shutter
A pixel cell has a large and small photodiode, transfer transistors, a reset transistor, a dynamic range enhancement capacitor, a capacitor control transistor, a storage capacitor, a storage capacitor control transistor, an amplifier transistor in a source follower configuration and a rolling shutter row select transistor and a readout circuit block. The small and large photodiodes are exposed simultaneously, the large photodiode having a constant exposure while the small photodiode has a chopped exposure and charge transfer to a storage capacitor.
Owner:SMARTSENS TECH (HK) CO LTD
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