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381 results about "Luminophore" patented technology
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A luminophore is an atom or functional group in a chemical compound that is responsible for its luminescent properties. Luminophores can be either organic or inorganic. Luminophores can be further classified as fluorophores or phosphors, depending on the nature of the excited state responsible for the emission of photons. However, some luminophores cannot be classified as being exclusively fluorophores or phosphors. Examples include transition-metal complexes such as tris(bipyridine)ruthenium(II) chloride, whose luminescence comes from an excited (nominally triplet) metal-to-ligand charge-transfer (MLCT) state, which is not a true triplet state in the strict sense of the definition; and colloidal quantum dots, whose emissive state does not have either a purely singlet or triplet spin.
Light source comprising a light-emitting element
InactiveUS6809347B2High luminous efficiencyHigh degreePlanar light sourcesPoint-like light sourceLuminophoreManganese
Owner:TOYODA GOSEI CO LTD
Hybrid OLED having phosphorescent and fluorescent emitters
ActiveUS20060232194A1Discharge tube luminescnet screensElectroluminescent light sourcesLuminophoreOrganic light emitting device
The present invention provides organic light emitting devices having a combined emission from at least two emissive materials, a fluorescent blue emissive material and a phosphorescent emissive material. The device may further comprise additional fluorescent or phosphorescent emissive materials. In preferred embodiments, the invention provides OLEDs having three different emissive materials—a red emissive material, a green emissive material and a blue emissive material. The invention provides a device architecture which is optimized for efficiency and lifetime by using a combination of fluorescent and phosphorescent emitters. Further, in preferred embodiments the device architecture provides a high color-stability of the light emission over a wide range of currents or luminances.
Owner:UNIVERSAL DISPLAY
Luminescence-optical method and sensor layer for quantitative determination of at least one chemical component of a gaseous or liquid sample
InactiveUS6046055AEasy to produceMaterial analysis by observing effect on chemical indicatorChemiluminescene/bioluminescenceEnergy transferLuminophore
In a sensor layer for quantitative determination of at least one chemical component in a gaseous or liquid sample medium containing a chromophore which is directly or indirectly responsive to the component being determined by changing its absorption spectrum, and a luminophore which is not responsive to the component being determined, where there is an at least partial overlap between the emission spectrum of the luminophore and the absorption spectrum of the chromophore, and where the energy transfer between luminophore and chromophore produces a measurable change in at least one luminescence characteristic of the luminophore, the luminophore L and the chromophore GAMMA are ionic substances with differing electrical charges, which are incorporated in a matrix material that is permeable to the chemical component being determined.
Owner:AVL MEDICAL INSTR
White light-emitting organic-inorganic hybrid electroluminescence device comprising semiconductor nanocrystals
InactiveUS20060043361A1Material nanotechnologyDischarge tube luminescnet screensLiquid-crystal displayLuminophore
A white light-emitting organic-inorganic hybrid electroluminescence device which has nanocrystals as illuminants. According to the device, a semiconductor nanocrystal layer composed of at least one kind of nanocrystals, a hole transport layer and / or an electron transport layer simultaneously emit light to produce white light, or a semiconductor nanocrystal layer composed of at least two kinds of nanocrystals emits light at different wavelengths to produce white light. The device can be used as a backlight unit for a liquid crystal display, or can be used to manufacture an illuminator.
Owner:SAMSUNG ELECTRONICS CO LTD
Fluorescent filtered electrophosphorescence
ActiveUS20060273714A1Stable color balanceImprove stabilityDischarge tube luminescnet screensElectroluminescent light sourcesLuminophoreTriboluminescence
Owner:UNIV OF SOUTHERN CALIFORNIA +1
White electroluminescent device with anthracene derivative host
InactiveUS20060019116A1Good luminous yieldOperational stability can be improvedSolid-state devicesNatural mineral layered productsAnthraceneLuminophore
An OLED device for emitting white light comprises adjacent layers 1 and 2 wherein layer 1 contains a host and a yellow, orange, or red emitter and layer 2 contains a host and a blue or blue-green light emitter wherein the host in layer 2 comprises an anthracene material bearing an aromatic ring bonded to the 2-, 9-, and 10-positions of the anthracene nucleus.
Owner:EASTMAN KODAK CO
Electroluminescent device with quinazoline complex emitter
ActiveUS20070122655A1Useful emissionUseful stabilityGroup 5/15 element organic compoundsSolid-state devicesLuminophoreHost material
An OLED device comprises a cathode, an anode, and located therebetween a light-emitting layer containing a host material and a tris-CˆN-cyclometallated complex of Ir or Rh wherein at least one of the ligands comprises a substituted quinazoline moiety. The device provides useful emission and stability attributes.
Owner:GLOBAL OLED TECH
Light source comprising a light-emitting element
InactiveUS20040090174A1High luminous efficiencyHigh degreePlanar light sourcesPoint-like light sourceAlkaline earth metalLuminophore
The invention relates to a light source comprising a light-emitting element, which emits light in a first spectral region, and comprising a luminophore, which comes from the group of alkaline-earth orthosilicates and which absorbs a portion of the light emitted by the light source and emits light in another spectral region. According to the invention, the luminophore is an alkaline-earth orthosilicate, which is activated with bivalent europium and whose composition consists of: (2-x-y)SrOx(Ba, Ca)O(1-a-b-c-d)SiO2aP2O5bAl2O3cB2O3dGeO2:yEu<2+> and / or (2-x-y)BaOx((Sr, Ca)O(1-a-b-c-d)SiO2aP2O5bAl2O3cB2O3dGeO2:yEu<2+>. The desired color (color temperature) can be easily adjusted by using a luminophore of the aforementioned type. The light source can contain an additional luminophore selected from the group of alkaline-earth aluminates, activated with bivalent europium and / or manganese, and / or can contain an additional red-emitting luminophore selected from the group Y(V, P, Si)O4:Eu or can contain alkaline-earth magnesium disilicate.
Owner:TOYODA GOSEI CO LTD
High colour quality luminaire
InactiveUS20120038280A1Low costUniform chromaticity propertyLight source combinationsElectroluminescent light sourcesSemiconductor materialsEffect light
A colour tunable lighting module is described which includes at least three solid state lighting emitters (such as light emitting diodes) and at least two wavelength converting elements (such as phosphors). The three solid state lighting emitters are formed of the same semiconductor material system and the light generated by them has dominant wavelengths in the blue-green-orange range of the optical spectrum. The two wavelengths converters are used re-emit some of the light from two of the emitters in broader spectra having longer dominant wavelengths, while the third emitter is selected to emit light at a wavelength between the dominant wavelengths of the light from the two emitters and the two converters. A control system may be employed to monitor and control the module and the lighting module can be optimised for tunable high colour quality white light applications.
Owner:PHOTONSTAR LED
Light-based system for detecting analytes
Device, kit and method of using same to detect analytes such as nucleic acids are described. An excitation source, preferably a nitride-based LED, emits light capable of being absorbed by luminophores. Sensors are stably attached, preferably via covalent or ionic bonds, to a surface within the device, such as the surface of the excitation source that is exposed to the sample. When a complex is formed between the sensors and the analyte, the luminophores emit light or emit light of a different wavelength, thereby signaling the presence or quantity of the analyte.
Owner:SLT TECH
Optical co2 and combined o2/co2 sensors
InactiveUS20060257094A1Improve temperature stabilityAccelerate emissionsMaterial analysis by observing effect on chemical indicatorFluorescence/phosphorescenceLuminophorePH indicator
Improved carbon dioxide sensors are disclosed which are less sensitive to the moisture content of the environment and which are substantially insensitive to oxygen levels under normal working conditions. The CO2 sensor comprises a pH indicator and long-lived reference luminophore and a porous sol-gel matrix. Combined CO2 and O2sensors are also described. Further disclose are methods of printing sensor onto substrates.
Owner:INVENT CENT THE
Polychromatic solid-state light sources for the control of colour saturation of illuminated surfaces
InactiveUS20140167646A1Electrical apparatusElectroluminescent light sourcesLuminophoreLight-emitting diode
Polychromatic light sources of white light are composed of at least two different coloured emitters, such as groups of light-emitting diodes (LEDs). Disclosed are the spectral power distributions and relative partial radiant fluxes of the coloured emitters that allow controlling the colour saturating ability of the generated light, namely, the ability to render colours with increased saturation and the ability to render colours with decreased saturation. Also disclosed is a method for dynamical tailoring the colour saturating ability of the generated light.
Owner:VILNIUS UNIV
Characterization of luminescence in a scattering medium
A system (20) of the present invention includes light source instrumentation (30) to selectively illuminate a light scattering medium including a luminophore and detection instrumentation (50) to detect multiply scattered light output from the medium in response to illumination by the light source instrumentation (30). A processor (70) is operatively coupled to the detection instrumentation (50) to determine a first optical characterization of the medium from a first multiply scattered light output of a first illumination light wavelength and a second optical characterization of the medium from a second multiply scattered light output of a second illumination light wavelength different than the first illumination light wavelength. The processor (70) is operable to calculate lifetime of the luminophore from the first optical characterization, the second optical characterization, and a multiply scattered emission of the luminophore from the medium in response to excitation.
Owner:TEXAS A&M UNIVERSITY
High colour quality luminaire
InactiveUS8783901B2Low costWell defined chromaticity propertyLight source combinationsLighting support devicesSemiconductor materialsEffect light
Owner:PHOTONSTAR LED
Light-emitting nanoparticle compositions
InactiveUS20050123760A1Material nanotechnologySolid-state devicesLuminophoreFunctionalized nanoparticles
Light-emitting chromophores (lumophores) that emit different colored light may be covalently attached to a nanoparticle core such as a silsequioxane. The light emission profile of the resulting lumophore-functionalized nanoparticle is the sum of the light emission of all of the lumophores attached to the nanoparticle. In some embodiments, the lumophore-functionalized nanoparticle is white light-emitting.
Owner:CAMMACK J KEVIN +3
Chemiluminescence reagent
ActiveCN103293145AReduce or inhibit productionImprove signal-to-noise ratioChemiluminescene/bioluminescenceSignal-to-noise ratio (imaging)Chemistry
The invention discloses a chemiluminescence reagent, and relates to a chemiluminescence reagent which is mainly applied to a biotechnology, bioscience, medical diagnosis, food safety, and environment-friendly detection. The chemiluminescence reagent is prepared from the materials by mass percent: at least one 0.001-0.1% luminous reagent, at least one 0.001-0.2% oxidant, at least one 0.01-0.5% luminous enhancer, at least one 0.000001-0.05% background control agent, and a buffer solution of which the pH value is 8-11. The key is as follows: chemiluminescence is adjusted by utilizing the background control agent (particularly the antioxidant); the chemiluminescence reagent is valid on background control of enhanced chemiluminescence enzyme immunoassay detection, improvement of the signal to noise ratio and the like. The basis is how to control luminol free radical and concentration of related free radical in a horse radish peroxidase-luminol luminescence system.
Owner:HELIOSENSE BIOTECH INC +1
Sensor for luminescense-optical determination of an analyte
InactiveUS7067320B2High Luminous Quantum EfficiencyLong luminescence decay timeAnalysis using chemical indicatorsChemical analysis using titrationAnalyteLuminophore
The invention relates to an optochemical sensor functioning in accordance with the FRET-principle and exhibiting an acceptor (chromophore or luminophore) responsive to an analyte contained in a sample medium as well as a donor (luminophore), characterized in that acceptor and donor are located in separate chemical phases, whereby the phase containing the donor is essentially impermeable to the sample medium or to components of the sample medium affecting the luminescence characteristics of the luminophore. The invention further relates to a method for qualitative and / or quantitative determination of at least one analyte and / or component of a gaseous or liquid measuring medium according to the FRET-principle, characterized by the use of the sensor according to the invention.
Owner:ROCHE DIAGNOSTICS OPERATIONS INC
Composites of inorganic luminophores stabilized in polymer hosts
InactiveUS6844387B2Inexpensive displayGroup 5/15 element organic compoundsLight demodulationLuminophorePolymer science
A two and three dimensional display medium having a novel transparent polymer composite containing particles of crystals doped with Yb3+ and other rare earth ions. The polymer composite creates homogeneously dispersed compositions without cracking or delamination of the film and can be used for various optical applications.
Owner:RES FOUND OF THE UNIV OF
Method for determining a surface contact force
ActiveUS7127950B2Aerodynamic testingForce measurement by measuring optical property variationLuminophoreTangential displacement
Owner:INNOVATIVE SCI SOLUTIONS
Fluorescent filtered electrophosphorescence
ActiveUS7768194B2Guaranteed balance and stabilityIncrease the driving voltageDischarge tube luminescnet screensElectroluminescent light sourcesLuminophoreTriboluminescence
Owner:UNIV OF SOUTHERN CALIFORNIA +1
Optical coding device by plasmon effect and authentication method using the device
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Plasmon-enhanced display technologies
InactiveUS20050146724A1Advanced technologyIncrease brightnessLiquid crystal compositionsMaterial nanotechnologyLuminophoreSurface plasmon
This invention describes a method of use surface plasmon of nanoparticles to enhance CRT, LCD, OLED, Plasma and other display technologies. The plasmon-enhanced nanoparticles interacting with nearby luminophores, liquid crystals or other materials improve in display technologies brightness, contrast, and longevity of luminophores; make faster response time and better direction emission display. The plasmon-enhanced nanoparticles like quantum dots can be also used directly as a luminophores in quantum display technologies.
Owner:SPR ADVANCED TECH INC
Fluorescent filtered electrophosphorescence
ActiveUS7474048B2Guaranteed balance and stabilityIncrease the driving voltageDischarge tube luminescnet screensElectroluminescent light sourcesLuminophoreTriboluminescence
Owner:UNIV OF SOUTHERN CALIFORNIA +1
Optical coding device by plasmon effect and authentication method using the device
InactiveUS20080149850A1Decoding difficultImpossible to infringeOptical radiation measurementNon-fibrous pulp additionLuminophoreSurface plasmon
This optical coding device comprises a plurality of aggregates suitable for emitting infrared, visible or ultraviolet rays by luminescence, at least one of the said aggregates comprising at least one luminophore. This aggregate further comprises at least one particle consisting of a surface plasmon effect material, the said luminophore and the said particle being suitable for entering into interaction.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Compounds to co-localize luminophores with luminescent proteins
InactiveUS7268229B2Organic chemistryMaterial analysis by observing effect on chemical indicatorLuminophoreLuciferases
Owner:PROMEGA CORP
Preparation and application of unmarked electrochemiluminescent tumor marker immunosensor
The invention discloses a preparation method of an unmarked electrochemiluminescent tumor marker immunosensor and application of the immunosensor in detection of tumor markers, and belongs to the field of novel nano functional materials and biosensors. According to the preparation method of the unmarked electrochemiluminescent tumor marker immunosensor, a novel micro-nano material NH4CoPO4 is taken as a substrate so that the luminescence stability of a luminol-hydrogen peroxide luminescent system can be greatly enhanced, and meanwhile, rod-like gold@siver core-shell nanoparticles are taken as a biomimetic catalytic luminescent system, and therefore, an unmarked electrochemiluminescent immunosensor, which is low in cost, high in sensitivity, good in specificity, fast in detection and simple to prepare and is used for detecting tumor makers, can be prepared.
Owner:UNIV OF JINAN
White light LED and light converting luminophore
InactiveCN1585141AHigh color rendering indexHigh light conversion efficiencyGas discharge lamp usageLuminescent compositionsFluorescenceManganese
The diode is comprised of the luminous chip electrode, phosphor and sealing material. The phosphor is comprised of the silicon chloride acid Mg Zn Ca (CMZSC) and alkali earth silicate and pyrosilicate phosphor. This phosphor with the other phosphor of the visible light combines the UV white light and LD. The CMZSC green phosphor can transform the blue light transmitted by the semiconductor compound into yellow light. Thus the transmitting spectrum covered area is broadened and the optical transform effect is improved.
Owner:刘行仁 +1
Functional polymer with supported pressure-sensitive luminophore, and pressure-sensitive paint and pressure-sensitive element using same
InactiveUS20030175511A1Inhibitory responsePreventing steric hindranceForce measurementBiological testingHybrid typeEvaporation
An oxygen-quenching luminophore constituting part of a pressure-sensitive luminophore is directly bonded by a covalent bond to an organic polymer compound having trimethylsilyl groups, so the luminophore molecules are retained in the polymer and free aggregation is inhibited when the organic solvent is evaporated. It is therefore possible to prevent light response from being reduced by the aggregation of the luminophore molecules during evaporation of the organic solvent, which is a drawback of forming films from conventional mixed-type pressure-sensitive paints. A thin-film sensor with uniform characteristics can be formed by spraying or application from a pressure-sensitive paint obtained by mixing a functional polymer with a solvent. In addition, a coating solution that has high reproducibility and is suitable for spraying or application can be obtained merely by dissolving the functional polymer as a single component in a suitable solvent. It is possible to obtain a functional polymer, a pressure-sensitive paint, and a pressure-sensitive element in which a reduction in light response due to luminophore aggregation can be prevented, and a thin sensor film having uniform characteristics can be formed, even when the organic solvent has evaporated.
Owner:JAPAN AEROSPACE EXPLORATION AGENCY
Method of producing spatial fine structures
InactiveUS20080018891A1Improve spatial resolutionLow effortRadiation pyrometrySpectrum investigationFine structureLuminophore
A method of producing spatial fine structures comprises the steps of: selecting a luminophore from the group of luminophores displaying two different states, one of the two states being an active state in which luminescence light is obtainable from the luminophore, the other of the two states being an inactive state in which no luminescence light is obtainable from the luminophore, and the luminophore being reversibly, but essentially completely, transferable out the one state into the other state by means of an optical signal; adding the luminophore to a material; forming a spatial fine structure of the material; and fluorescence-microscopically examining whether the desired fine structure is present. The step of fluorescence-microscopically examining comprises the sub-steps of: outside measuring points of interest, transferring the luminophore into the other state with the optical signal, the luminophore being essentially completely transferred into the inactive state outside the measuring points, and measuring luminescence light only emitted by the luminophore in the active state, to even resolve lines of the fine structure at a distance of less than 100 nm.
Owner:MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN EV
Organic electric-exciting light emitting device and its making method
InactiveCN1438829AElectrical apparatusElectroluminescent light sourcesHole transport layerLight emitting device
In the illuminator, the following layers are prepared between the anode and cathode in sequence: hole transport layer, electron barrier layer, the first subject material layer, the second subject material layer, the hole barrier layer and electron transport layer. With the first object luminiferous material being intermixed in, the first subject material layer shoots the first color light (B) under bias voltage being added. The second object luminiferous material shooting the second color light (G) and the third object luminiferous material shooting the third color light (R) is intermixed in the second subject material layer. Moreover, the second and the third object luminiferous materials are phosphorescent materials, therefore besides the continuous all wave band true color light source can be obtained.
Owner:OPTO TECH
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