Patent application number | Description | Published |
20090212697 | LIGHT EMITTING DEVICE WITH TRANSLUCENT CERAMIC PLATE - 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. | 08-27-2009 |
20090293675 | METHOD AND APPARATUS OF PRODUCING NANOPARTICLES USING NEBULIZED DROPLET - Methods of generating nanoparticles are described that comprises feeding nebulized droplets into a radio frequency plasma torch to generate nanoparticles, wherein the majority of the nanoparticles generated have a diameter of less than about 50 nm. These methods are useful for synthesizing nanoparticles of metals, semiconductors, ceramics or any other material class where the precursors are either in liquid form or can be dissolved or suspended in a suitable liquid. Methods of feeding nebulized droplets and central gas into a radio frequency plasma torch and apparatus for generating nanoparticles are also described. | 12-03-2009 |
20100012478 | THERMAL TREATMENT FOR INORGANIC MATERIALS - A method of annealing inorganic particles using microwave is provided. The method comprises disposing a plurality of raw particles having poor room-temperature microwave coupling characteristics in a close proximity to a microwave-absorbing material, irradiating said microwave-absorbing material with microwave radiation to heat said microwave-absorbing material, and heating said plurality of raw particles for a period of time sufficient to obtain a plurality of annealed particles, wherein the plurality of annealed particles has a crystalline phase, and wherein said heating comprises transferring heat from said microwave-absorbing material to said plurality of raw particles. | 01-21-2010 |
20100200808 | NANOSCALE PHOSPHOR PARTICLES WITH HIGH QUANTUM EFFICIENCY AND METHOD FOR SYNTHESIZING THE SAME - Described herein are batches of nanoscale phosphor particles having an average particle size of less than about 200 nm and an average internal quantum efficiency of at least 40%. The batches of nanoscale phosphor particles can be substantially free of impurities. Also described herein are methods of manufacturing the nanoscale phosphor particles by passing phosphor particles through a reactive field to thereby dissociate them into elements and then synthesizing nanoscale phosphor particles by nucleating the elements and quenching the resulting particles. | 08-12-2010 |
20100301367 | LIGHT-EMITTING DEVICE COMPRISING A DOME-SHAPED CERAMIC PHOSPHOR - Some embodiments provide a light-emitting device comprising: a light-emitting diode; a substantially transparent encapsulating material having a refractive index in the range of about 1.3 to about 1.8; a layer of low refractive index material having a refractive index in the range of about 1 to about 1.2; and a translucent ceramic phosphor having a refractive index in the range of about 1.6 to about 2.7, and is substantially dome-shaped with substantially uniform thickness. Some embodiments provide a light-emitting device comprising: a substrate; a light-emitting diode mounted on a surface of the substrate; and a substantially hemispheric cover mounted on the surface of the substrate so as to enclose the light emitting diode; wherein the substantially hemispheric cover comprises an outer layer, a middle layer, and an inner layer arranged concentrically, with the inner layer being nearest the light-emitting diode. | 12-02-2010 |
20100301739 | LUMINESCENT CERAMIC AND LIGHT-EMITTING DEVICE USING THE SAME - Some embodiments provide luminescent ceramics which have a lower amount of dopant than conventional luminescent ceramics. In some embodiments, the luminescent ceramic comprises a host material comprising a rare earth element and at least one rare earth dopant, wherein the rare earth dopant may be about 0.01% to 0.5% of the rare earth atoms present in the material. Some embodiments provide luminescent ceramic comprising: a polycrystalline phosphor represented by the formula (A | 12-02-2010 |
20110006449 | PRODUCTION OF PHASE-PURE CERAMIC GARNET PARTICLES - Disclosed herein are processes for making a plurality of substantially phase-pure metal oxide particles, the particles comprising a garnet structure, the process comprising: subjecting a dispersion of precursors to a solvothermal treatment to form a garnet intermediate and applying a flow-based thermochemical process to said garnet intermediate. | 01-13-2011 |
20110210658 | LIGHT EMISSIVE CERAMIC LAMINATE AND METHOD OF MAKING SAME - A ceramic composite laminate includes a wavelength-converting layer and a non-emissive layer, wherein the ceramic composite laminate has a wavelength conversion efficiency (WCE) of at least 0.650. The ceramic composite laminate can also include a wavelength-converting ceramic layer comprising an emissive material and a scattering material, wherein the laminated composite has a total transmittance of between about 40% to about 85%. The wavelength-converting layer may be formed from plasma YAG:Ce powder. | 09-01-2011 |
20110227476 | LIGHT EMITTING DEVICE USING ORANGE-RED PHOSPHOR WITH CO-DOPANTS - Disclosed herein are lighting apparatuses having a light source, a first phosphor, and a second phosphor, wherein the lighting apparatuses exhibit increased R9 values. In some embodiments, the light source is configured to emit radiation having a wavelength of peak emission between about 495 nm and about 500 nm. The first phosphor may have a first wavelength of peak emission between about 495 nm and about 600 nm. The second phosphor may be represented by the formula RE | 09-22-2011 |
20110227477 | GARNET-BASED PHOSPHOR CERAMIC SHEETS FOR LIGHT EMITTING DEVICE - Some embodiments disclosed herein include a lighting apparatus having a composite. The composite may include a first emissive layer and a second emissive layer. The first emissive layer may include a first garnet phosphor having a common dopant. The second emissive layer may include a second garnet phosphor having the common dopant. In some embodiments, the first emissive layer and the second emissive layer are fixed together. Some embodiments disclosed herein include efficient and economic methods of making the composite. The method may include, in some embodiments, sintering an assembly that includes pre-cursor materials for the first emissive layer and the second emissive layer. | 09-22-2011 |
20110306922 | LIGHT-EMITTING DEVICES FOR PHOTOTHERAPY - Some embodiments provide a compound represented by Formula 1. Other embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising a compound of Formula 1. Other embodiments provide an organic light-emitting device optionally comprising a wavelength convertor. Methods related to the treatment of diseases using phototherapy area also described. | 12-15-2011 |
20110315926 | SILICON PRECURSORS FOR SYNTHESIZING MULTI-ELEMENTAL INORGANIC SILICON-CONTAINING MATERIALS AND METHODS OF SYNTHESIZING SAME - A method for making silicon materials includes providing a multi-elemental water-soluble precursor solution comprising at least one silicon precursor and applying a heat source to the silicon precursor to form a multi-elemental silicon material. A composition, light emitting element and light emitting device including the silicon materials made in accordance with the method are described. | 12-29-2011 |
20120007494 | PHOSPHOR COMPOSITION AND LIGHT EMITTING DEVICE USING THE SAME - Disclosed herein are phosphor compositions which can exhibit a broad emission spectrum and improved color rendering index (CRI) relative to conventional phosphor materials. The phosphor compositions may, in some embodiments, be represented by the Formula I: (RE | 01-12-2012 |
20120068213 | LIGHT EMISSIVE CERAMIC LAMINATE AND METHOD OF MAKING SAME - A laminated composite includes a wavelength-converting layer and a non-emissive blocking layer, wherein the emissive layer includes a garnet host material and an emissive guest material, and the non-emissive blocking layer includes a non-emissive blocking material. The metallic element constituting the non-emissive blocking material has an ionic radius which is less than about 80% of an ionic radius of an A cation element when the garnet or garnet-like host material is expressed as A | 03-22-2012 |
20120141771 | EMISSIVE CERAMIC MATERIALS HAVING A DOPANT CONCENTRATION GRADIENT AND METHODS OF MAKING AND USING THE SAME - Disclosed herein are emissive ceramic materials having a dopant concentration gradient along a thickness of a yttrium aluminum garnet (YAG) region. The dopant concentration gradient may include a maximum dopant concentration, a half-maximum dopant concentration, and a slope at or near the half-maximum dopant concentration. The emissive ceramics may, in some embodiments, exhibit high internal quantum efficiencies (IQE). The emissive ceramics may, in some embodiments, include porous regions. Also disclosed herein are methods of make the emissive ceramic by sintering an assembly having doped and non-doped layers. | 06-07-2012 |
20120194066 | LIGHT EMITTING DEVICE WITH TRANSLUCENT CERAMIC PLATE - 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. | 08-02-2012 |
20120235203 | METHOD FOR PRODUCING NANOPARTICLES - Some embodiments disclosed herein are related to methods of preparing a nanoparticle composition comprising: providing an aerosol comprising a plurality of droplets of a precursor solution comprising at least one nanoparticle precursor and an expansive component; passing the aerosol through a plasma; and collecting a nanoparticle composition product from the carrier gas which has exited the plasma. Some embodiments relate to nanoparticle compositions provided by this process. Some embodiments relate to light-emitting diodes or light emitting devices comprising these compositions. | 09-20-2012 |
20130180932 | Transparent Photocatalyst Coating - Photocatalyst compositions and elements exhibiting desired photocatalytic activity levels and transparency. | 07-18-2013 |
20130192976 | TITANIA PHOTOCATALYTIC COMPOUNDS AND METHODS OF MAKING THE SAME - Disclosed herein are titania photocatalysts, titania photocatalytic compositions, and methods of making the same. The photocatalysts may, for example, be represented by the formula of (Ti | 08-01-2013 |
20130237409 | HIGH SURFACE AREA PHOTOCATALYST MATERIAL AND METHOD OF MANUFACTURE - Photocatalytic materials are described herein which include thin nanostructures. For example, the catalytic material can include a nanostructure that has a thin structure of a photocatalytic composition, wherein the thin structure is defined by a first surface and a second surface on opposite sides of the thin structure of the photocatalytic composition. The photocatalytic composition may include an inorganic compound, such as a titanium and/or stannous oxide. The first surface and a second surface may be relatively large as compared to the thickness of the thin structure, or the thickness of the nanostructure. | 09-12-2013 |
20130313967 | GARNET-BASED PHOSPHOR CERAMIC SHEETS FOR LIGHT EMITTING DEVICE - Some embodiments disclosed herein include a lighting apparatus having a composite. The composite may include a first emissive layer and a second emissive layer. The first emissive layer may include a first garnet phosphor having a common dopant. The second emissive layer may include a second garnet phosphor having the common dopant. In some embodiments, the first emissive layer and the second emissive layer are fixed together. Some embodiments disclosed herein include efficient and economic methods of making the composite. The method may include, in some embodiments, sintering an assembly that includes pre-cursor materials for the first emissive layer and the second emissive layer. | 11-28-2013 |
20140158641 | DISINFECTING WATER DEVICE - Described herein are devices for providing drinking fluid from feed sources comprising: a first reservoir, a filter for mechanically removing particles and a second reservoir for receipt of the processed feed fluid. A continually disinfecting element is disposed in either or both reservoirs to remove additional materials from the fluid. Drinking fluid is provided in a portable device. Optional light sources are provided to interact with the disinfecting elements and/or provide an indication of the contained suitability of such disinfecting elements. A method for creating drinking fluid from a feed source is also disclosed. | 06-12-2014 |
20140256540 | HIGH SURFACE AREA PHOTOCATALYST MATERIAL AND METHOD OF MANUFACTURE - Photocatalytic materials are described herein which include thin nanostructures. For example, the catalytic material can include a nanostructure that has a thin structure of a photocatalytic composition, wherein the thin structure is defined by a first surface and a second surface on opposite sides of the thin structure of the photocatalytic composition. The photocatalytic composition may include an inorganic compound, such as a titanium and/or stannous oxide. The first surface and a second surface may be relatively large as compared to the thickness of the thin structure, or the thickness of the nanostructure. | 09-11-2014 |
20140332722 | EMISSIVE CERAMIC MATERIALS HAVING A DOPANT CONCENTRATION GRADIENT AND METHODS OF MAKING AND USING THE SAME - Disclosed herein are emissive ceramic materials having a dopant concentration gradient along a thickness of a yttrium aluminum garnet (YAG) region. The dopant concentration gradient may include a maximum dopant concentration, a half-maximum dopant concentration, and a slope at or near the half-maximum dopant concentration. The emissive ceramics may, in some embodiments, exhibit high internal quantum efficiencies (IQE). The emissive ceramics may, in some embodiments, include porous regions. Also disclosed herein are methods of make the emissive ceramic by sintering an assembly having doped and non-doped layers. | 11-13-2014 |