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7390436 |
Zirconium or hafnium-containing oxides
Oxo-acid salts, double oxides or complex oxides contain 0.001-10 atom % of Zr or Hf. They emit near-ultraviolet radiation when excited with vacuum-ultraviolet radiation.
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7378038 |
Process for producing phosphors
A mixed melt, which contains urea and/or a urea derivative and contains a metal compound, is prepared. The mixed melt is solidified, by heating, whereby the urea and/or urea derivative is...
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7357882 |
Light emitting device and illuminator using the same
An object of the present invention is to provide a light emitting device having a high emission intensity, and a light emitting device having a high emission intensity and a good color rendering...
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7332855 |
Phosphor blends for wavelength conversion and white light emitting device using the same
The present invention provides a phosphor blend for wavelength conversion and a white light emitting device using the phosphor blend. Further disclosed is a white light emitting phosphor blend...
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7329371 |
Red phosphor for LED based lighting
Disclosed are phosphor compositions having the formula (RE 1-y Ce y )Mg 2-x Li x Si 3-x P x O 12 , where RE is at least one of Sc, Lu, Gd, Y, and Tb, 0.0001<x<0.1 and 0.001<y<0.1. When...
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7314581 |
Rare earth phosphate and making method
A rare earth phosphate represented by the formula: RPO 4 wherein R is a rare earth element selected from Sc, Y, and lanthanoids of atomic numbers 57 to 71, wherein Mn substitutes for 0.01-15 atom...
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7311859 |
Method to produce nanocrystalline powders of oxide-based phosphors for lighting applications
Some embodiments of the present invention are directed toward nanocrystalline oxide-based phosphor materials, and methods for making same. Typically, such methods comprise a steric entrapment route...
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7309455 |
Phosphor composition for lamps
The invention relates to a phosphor composition for lamps with a lattice of monoclinic crystal structure (monazite) of type (1−g)[((1−c−a)*Ln, c*Ce, a*A)PO 4 ]×g*GeO 2 , in which Ln is at...
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7300605 |
Phosphor and device using the same
A phosphor having a magnetoplumbite-type crystal structure and comprising at least one element selected from B, Si, P, Ge, Ti, V, Ni, Ta, Nb, Mo, W, Yb, Tm and Bi.
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7298077 |
Device for generating UV radiation
A device for generating ultraviolet radiation by an excimer discharge is equipped with an at least partly UV-transparent discharge vessel whose discharge space is filled with a gas filling. The...
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7294956 |
Semiconductor light emitting element and light emitting device using this
The semiconductor light emitting device is composed of a combination of a near ultraviolet LED and a phosphor layer including a plurality of phosphors for absorbing near ultraviolet emitted by the...
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7267787 |
Phosphor systems for a white light emitting diode (LED)
Novel phosphor systems for a white LED are disclosed. The phosphor systems are excited by a non-visible to near-UV radiation source having an excitation wavelength ranging from about 250 to 420 nm....
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7267785 |
White light emitting phosphor blend for LED devices
There is provided a white light illumination system including a radiation source, a first luminescent material having a peak emission wavelength of about 570 to about 620 nm, and a second...
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7259509 |
Phosphor coating composition for a mercury low-pressure discharge lamp for illuminating plants
The invention relates to a fluorescent lamp for the illumination of plants, having a tubular discharge vessel, two electrodes which are fused in a gastight manner into the ends of the discharge...
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7255812 |
Method of making haloapatite phosphors
A method of making a haloapatite phosphor having a general formula represented by (Ca (1−x−y) Mn x Sb y ) 5 (PO 4 ) 3 (F (1−z−y) Cl z O y ), where 0<x<0.05, 0.004<y<0.01, and...
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7252787 |
Garnet phosphor materials having enhanced spectral characteristics
Phosphor compositions having the formula (Y 1-x-y-z Tb x Gd y Ce z ) 3 (M 1 M 2 ) t (Al 1-r-s Ga r In s ) A-2t O 12+D , where M 1 is Mg or Zn, M 2 is Si or Ge, 0<x+y<1, 0.01<z<0.1,...
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7247257 |
Light emitting device
To minimize the variability in the emitted light color and improve the unevenness of color tone, a light emitting device comprises a light emitting element and a fluorescent substance that is...
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7241399 |
Synthesis of nanoparticles
Methods for the preparation of inorganic nanoparticles capable of fluorescence, wherein the nanoparticles consist of a host material that comprises at least one dopant. The synthesis of the...
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7238302 |
Single-component, UV-emitting phosphor
The present invention is a single-component, UV-emitting phosphor having a composition represented by the general formula (Y 1−x−y−z La x Gd y Ce Z )PO 4 where x has a value in a range from...
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7226547 |
Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The...
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7223987 |
Process for producing phosphor and plasma display panel unit
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing,...
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7215077 |
Plasma display apparatus and fluorescent material for plasma display panel
Fluorescent material used for a plasma display panel contains particles having various diameters wherein X 1 /Y is equal to or smaller than 10% where X 1 indicates a number of particles having a...
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7214330 |
Method of manufacturing phosphor powder, phosphor powder, and phosphor composition
A method of manufacturing a highly crystallized phosphor powder, comprising: making a raw material solution containing metal elements and/or semimetal elements that will be constituents of the...
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7208103 |
Quantum-splitting fluoride-based phosphors, method of producing, and devices incorporating the same
A quantum-splitting phosphor has a formula of ADF 5 :Pr 3+ , wherein A is at least one alkaline-earth metal and D is at least one Group-IIIB metal. The phosphor is made in a solid-state method...
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7183706 |
Led-based illumination unit
The inventive white-light emitting luminescent conversion LED uses a chlorosilicate luminous substance which is doped with europium in addition to containing Ca and Mg and a garnet rare-earth...
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7175778 |
Self-aligning QCA based nanomaterials
The present application is directed to the preparation and use of a class of nanoparticles called Quantum Confined Atoms or QCA's. A QCA is a particle of material comprising a plurality of host...
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7161298 |
Plasma display unit
A plasma display device includes a blue phosphor composed of a compound represented by Me 3 MgSi 2 O 8 :Eu (where, Me is at least calcium (Ca), strontium (Sr), or barium (Ba)). Concentration of...
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7138757 |
High lumen output fluorescent lamp with high color rendition
A high lumen output compact fluorescent lamp is disclosed that has a luminous efficiency of 40 lumen/W or higher. The fluorescent lamp comprises an envelope enclosing a discharge space, means for...
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7128849 |
Phosphors containing boron and metals of Group IIIA and IIIB
A phosphor comprises: (a) at least a first metal selected from the group consisting of yttrium and elements of lanthanide series other than europium; (b) at least a second metal selected from the...
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7115536 |
Rare earth containing P2O5-WO3-Na2O glass for laser applications
A rare earth containing glass nominally based on the ternary P 2 O 5 —WO 3 —Na 2 O-Ln 2 O 3 compositional space, with WO 3 >30-65 mole %, Na 2 O 15-35 mole %, P 2 O 5 5-65 mole %, Ln 2 O 3...
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7077978 |
Phosphors containing oxides of alkaline-earth and group-IIIB metals and white-light sources incorporating same
A phosphor comprises a material having a formula of AMgD 10 O 17 :Eu 2+ ,Mn 2+ , wherein A is at least an alkaline-earth metal selected from the group consisting of Ba, Sr, Ca, and combinations...
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7060202 |
Process for preparing rare earth luminescent materials
The present invention relates to a process for preparing rare earth trichromatic phosphor, comprising the following steps: (1) providing precursors for at least one composition formula selected...
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7022263 |
Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same
Europium-activated phosphors comprise oxides of at least a rare-earth metal selected from the group consisting of gadolinium, yttrium, lanthanum, and combinations thereof and at least a Group-IIIB...
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7018564 |
Method for making phosphor ink and system using the same
A method for making phosphor ink is provided which uses ultrasonic vibrations to remove surface defect layers from phosphor particles and to quickly and uniformly disperse the phosphor particles...
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7008557 |
Production method of phosphor and phosphor
The present invention relates to a production method of a phosphor comprising the steps of: forming a phosphor precursor in a liquid phase; drying the phosphor precursor; and firing the dried...
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7002291 |
LED-based white-emitting illumination unit
The inventive white-light emitting luminescent conversion LED uses a chlorosilicate luminous substance which is doped with europium in addition to containing Ca and Mg and a garnet rare-earth...
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7001537 |
Phosphor and its production process
The present invention is to provide a phosphor of minimum particle size having an excellent crystallinity and a high brightness higher than conventional crude particles, which is usable for a...
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6994802 |
Cathodoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
Cathodoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The...
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6982523 |
Red light emitting phosphor, its production and light emitting device
As a red light emitting phosphor capable of efficiently emitting red light at a high luminance in response to exciting light having a wavelength of 350-420 nm, and practically used in a light...
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6982046 |
Light sources with nanometer-sized VUV radiation-absorbing phosphors
A light source comprises: (a) a source of plasma discharge that emits electromagnetic radiation, a portion of which has wavelengths shorter than about 200 nm; and (b) a phosphor composition that...
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6979415 |
Luminescent nanomaterials powders having predetermined morphology and method of making
A method of making a luminescent nanomaterial having a plurality of nanoparticles. The luminescent nanomaterial includes at least one lanthanide group metal phosphate and at least one lanthanide...
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6939481 |
White light emitting phosphor blends for LED devices
There is provided white light illumination system including a radiation source, a first luminescent material having a peak emission wavelength of about 575 to about 620 nm, a second luminescent...
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6919060 |
Process for producing particles of a metal compound
The object of the present invention is to provide a process for producing particles of a metal compound having a spherical particle shape and an average particle diameter larger than 0.3 μm...
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6911160 |
Phosphate glass for use in the manufacture of ultra-short length lasers and amplifiers
A high-gain phosphate glass composition, which can be used to produce ultra-short gain length lasers and optical amplifiers is described wherein the composition of the glass in addition to...
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6899827 |
Inorganic optical taggant and method of making
Sintered, translucent ceramic microbeads, preferably alumina, titania, zirconia, yttria, zirconium phosphate, or yttrium aluminum garnet (YAG) are doped with one or more optically active species....
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6899826 |
Process for producing fluorescent metal oxide material
A process for producing a metal oxide phosphor includes a step of firing a powder containing an organic metal chelate complex including a plurality of metals constituting the metal oxide at a...
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6893490 |
Ink for display panel and method for producing plasma display panel using the same
An ink for a display panel that at a time of application is a mixture of a powder material, a water-soluble resin included in a range of 1 wt % to 20 wt % inclusive of the ink, and a water-miscible...
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6865318 |
Athermal optical components
Athermal optical components comprise cubic crystalline materials including silver chloride and cesium bromide, or comprise composites of at least two layers of different compositions wherein the...
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6855271 |
Coated phosphor filler and a method of forming the coated phosphor filler
An improved coated phosphor filler for an optical device includes a plurality of individual phosphor filler particles, and a coating layer having a plastic substance coated on each of the phosphor...
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6844671 |
High luminosity phosphor blends for generating white light from near-UV/blue light-emitting devices
The present invention provides phosphor blends that are excitable by electromagnetic radiation having wavelengths in the near Uv-to-blue range (from about 315 nm to about 480 nm) to emit a visible...
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