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6146548 |
Noctilucent or fluorescent artificial stone
A noctilucent or fluorescent artificial stone comprising a mixture of a resin and 5-65 wt % with respect to the total weight of the artificial stone of a transparent inorganic aggregate, on which a...
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6143200 |
Rare earth oxysulfide phosphor and X-ray detector using the same
When each of a rare earth oxysulfide phosphor represented by the composition formula (I) of Ln 2 O 2 S:xRe, yM wherein Ln represents at least one rare earth element selected from Y, La and Gd; Re...
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6139774 |
Fluorescent substance
The present invention provides an infrared fluorescent substance comprising a component represented by general formula AQO 3 :X (A is at least one element selected from the group consisting of Ca,...
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6136226 |
Noctilucent or fluorescent artificial stone composition
Provided is a luminous or fluorescent artificial stone composition in which the resin content is 11% by weight or less, from 0.3 to 1.0 W 1 of a weight (W 1 ) of a fine powder component of an...
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6132643 |
Fluorescent photosensitive vitroceramics and process for the production thereof
This invention relates to fluorescent photosensitive vitroceramics and the process for the production thereof. The fluorescent photosensitive vitroceramics according to the present invention employ...
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6129860 |
Phosphor of green luminescence
The present invention relates to a novel phosphor of green luminescence and more particularly, to the phosphor of green luminescence containing Tb(terbium) as an activator and a...
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6123871 |
Photoluminescence polymers, their preparation and uses thereof
Photoluminescence polymers, processes for preparing these novel photoluminescence polymers and methods for their use are provided. The photoluminescence polymers having one or more...
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6123872 |
Oxide phosphorescent glass capable of exhibiting a long lasting after-glow and photostimulated luminescence
The present invention provides an oxide glass capable of exhibiting a long lasting afterglow and photostimulated phosphorescence, whereby energy can be accumulated by radiation excitation, for...
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6117362 |
Long-persistence blue phosphors
This invention relates to phosphors including long-persistence blue phosphors. Phosphors of the invention are represented by the general formula: MO . mAl 2 O 3 :Eu 2 +,R 3 + wherein m is a...
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6117363 |
Method for producing light-emitting material
There is provided a novel method for manufacturing a light-emitting material composed of II-VI group semiconductors having a nano structure crystal and which is optimally doped with an activator....
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6113807 |
Phosphor and method for producing same
A method for producing a phosphor made of luminous inorganic particles of a nanostructure which is capable of keeping a surface of the phosphor from being polluted by any by-product and controlling...
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6110398 |
Phosphor powder
A phosphor powder for producing a high resolution phosphor screen and a phosphor screen are provided. The phosphor screen comprises a substrate, an infrared-absorbing layer, and a phosphor layer...
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6099753 |
Phosphor, its manufacturing method and plasma display panel
An object of the present invention is to provide a phosphor capable of improving the light emitting efficiency of a plasma display panel and restraining the deterioration of luminance and a change...
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6100633 |
Plasma display panel with phosphor microspheres
The present invention provides a plasma display panel, comprising a rear substrate provided with ribs defining discharge cells, address electrodes and phosphor layers, and a front substrate...
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6096698 |
Glow in the dark toilet bowl disinfectant composition
A glow in the dark toilet bowl disinfectant composition for fluorescently illuminating the water in the toilet bowl. The glow in the dark toilet bowl disinfectant composition includes a water...
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6096243 |
Method for producing a divalent europium-activated phosphor
A phosphor host compound is produced from a host compound material. Then, the host compound and a trivalent europium compound are reacted in a reducing atmosphere to generate a desired divalent...
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6093347 |
Rare earth X-ray scintillator compositions
Decay time in scintillator compositions comprising yttrium or lutetium and gadolinium oxides and europium oxide is decreased by incorporating therein at least one of the oxides of ytterbium,...
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6090311 |
Alkali iodide doped zinc sulfide electroluminescent phoshor
An electroluminescent phosphor containing an alkali iodide dopant, such as lithium iodide or potassium iodide, and having CIE coordinates of x=0.173 to 0.187 and y=0.392 to <0.424. The phosphor...
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6090310 |
Green emitting TB.sup.3+ activated borate phosphors used in low pressure mercury vapour lamps and a process for synthesizing the same
The present invention relates to novel green emitting Tb 3 + activated borate phosphors having the formula A 6 M 1 -x Tb x M'(BO 3 ) 6 wherein A=Sr; M=Y, Gd; M'=Sc, Y, Gd, Al, Ga; and...
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6090309 |
Visible light-emitting phosphor composition having an enhanced luminescent efficiency over a broad range of voltages
A phosphor composition selected from a range of phosphor compositions is provided for discharging spent electrons from a display screen of a luminescent display. The selected phosphor composition...
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6085971 |
Luminescent meta-borate substances
The present invention relates to variously activated luminescent metaborates having luminescence properties improved in comparison with conventional luminescent substances. Moreover, the activated...
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6077458 |
Phosphor, and cathode-ray tube and display using the same
The current coefficient and saturation brightness of a phosphor is increased by coating the surfaces of phosphor particles (11, 21, 41) constituting a powdered phosphor with layers (12, 22, 42),...
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6069439 |
Phosphor material, method of manufacturing the same and display device
A method of manufacturing a phosphor material, which comprises the steps of, generating thermal plasma, supplying a conductive material into the thermal plasma so as to evaporate the conductive...
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6059936 |
Rapid annealing of powder phosphors
Powder phosphors are activated while their particle size is limited in growth to approximately 1 micron or less. The powder phosphors are rapidly annealed with one of a number of methods, including...
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6051202 |
Method for preparing far-infrared radiating material
A process for preparing far-infrared radiating material. More particularly, this invention relates to a process for preparing far-infrared radiating material which makes maximum use of thermal...
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6048469 |
Advanced phosphors
This invention relates to new phosphor materials and to combinatorial methods of synthesizing and detecting the same. In addition, methods of using phosphors to generate luminescence are also...
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6045721 |
Barium magnesium aluminate phosphor
A barium magnesium aluminate phosphor having improved maintenance and efficiency is provided. The novel phosphor is suitable for use in conventional fluorescent lamp applications and applications...
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6042747 |
Method of preparing high brightness, small particle red-emitting phosphor
Improved yttrium, gadolinium borate phosphor particles are produced by thermal decomposition of gels/solutions comprising yttrium, gadolinium and europium salts in the form of gels or solutions and...
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6042746 |
Specialized phosphors prepared by a multi-stage grinding and firing sequence
A multi-stage process for preparing a phosphor product includes the stages of selecting precursors of a dopant and a host lattice as the phosphor starting materials, grinding the starting materials...
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6042748 |
Regenerating method and system for fluorescent material
A method for regenerating a fluorescent material from a recovered phosphor slurry characterized by including a chemical washing step wherein a hypochlorite and a periodate are used; a carbon...
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6039894 |
Production of substantially monodisperse phosphor particles
The invention relates to a method for producing activated, substantially monodisperse, phosphorescent particles and particles formed thereby. The method suspends substantially monodisperse,...
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6036886 |
Microemulsion method for producing activated metal oxide nanocrystals
A process for the production of metal oxide nanocrystals activated with a rare earth element, which are useful as phosphors. The nanocrystal oxides are produced by a micellar microemulsion process....
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6030657 |
Labeling technique for countering product diversion and product counterfeiting
The present invention is directed to a method for labeling an object for its identification in order to counter product diversion and product counterfeiting. This method includes providing an...
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6013199 |
Phosphor materials
This invention relates generally to new luminescent materials. Specifically, this invention relates to the discovery of phosphor materials in the forms of A 2 BX 4 , ABX 4 -y :M and A 3 -z B 5 X...
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6013979 |
Phosphor composition with a coating of colloidal SiO.sub.2 particles and an oxygen compound of magnesium, calcium, barium, zinc, or aluminum
The invention relates to a display screen having a phosphor layer of a phosphor composition of a phosphor coated with an oxygen compound of one of the elements magnesium, calcium, barium, zinc and...
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6007741 |
Method of making luminescent metaborates
A method is provided whereby high brightness metaborate phosphors are made by milling the reactants in a saturated aqueous solution of magnesia and boric acid prior to firing. The method increases...
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6004480 |
Phosphor manufacturing process employing auto feedback to control product characteristics
A continuous automated process is provided for manufacturing a phosphor product having controlled particle size characteristics and enhanced luminescent performance characteristics for use in a...
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6004481 |
Small particle terbium activated yttrium gadolinium borate phosphors and method of making
Small particle yttrium, gadolinium, terbium and cerium borate phosphors are produced by thermal decomposition of gels or solutions or powders containing yttrium, gadolinium, terbium and cerium...
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6005024 |
Phosphorescent epoxy overlay
The present invention pertains to novel durable, tough, transparent, luminescent overlay compositions, useful for highlighting and/or illuminating and preserving surfaces and markings thereupon,...
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5998047 |
Aluminate phosphor with a polyphosphate coating
A plasma display device with a phosphor screen, comprising a phosphor composition of an UV-phosphor furnished with a coating which includes one or more catena-polyphosphates of metals of the group...
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5989455 |
Aluminate phosphor, process for preparing the same, and vacuum ultraviolet-excited light emitting device
A manganese-activated aluminate phosphor represented by the following compositional formula and a vacuum ultraviolet ray excitation type light-emitting element having this phosphor as a fluorescent...
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5989799 |
Radiographic UV/blue intensifying screen-film combination
A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized...
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5985174 |
Fluorescent material used in an active dynamic liquid crystal display device and method for manufacturing the same
According to the present invention, there are provided a green fluorescent material of the general formula: Sr 1 -3/2(x+y+z) Ga 2 S 4 :Eu x , Tb y , Sm z where, 0.01≤x≤0.2;...
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5985173 |
Phosphors having a semiconductor host surrounded by a shell
Phosphors having a doped core are surrounded by a shell material. Additionally, these nanocrystalline phosphors, or larger phosphors formed by conventional or other processes may be surrounded by a...
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5985175 |
Boron oxide coated phosphor and method of making same
A method for forming a continuous, conformal non-particulate coating of boron oxide on individual phosphor particles is provided. The method involves reacting a boron-containing precursor with an...
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5976412 |
Fluorescent material
A fluorescent material is described which remains uninfluenced in the presence of oxygen during fabrication, allows a highly efficient light emission due to the concentration of donors being...
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5968415 |
Water-soluble phosphor material for color picture tubes and a process for manufacturing the same
The present invention provides a water-soluble gallate phosphor material with excellent luminous characteristics and a process for manufacturing of color CRT using the same material as above. The...
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5958296 |
Phosphor complex having high brightness
An improved red, green or blue phosphor complex produced by adhering chromium compound on the red, green or blue phosphor using a polymer binder or an inorganic binder, or without a binder, has...
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5952036 |
Fluorescent layer formation process
A fluorescent layer formation process which comprises dispersing particles of a fluorescent substance and particles of a (meth)acrylic resin as a binder or particles of the fluorescent substance...
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5938974 |
Yttrium tantalate x-ray phosphors with reduced persistence
A composition and method are provided for reducing the persistence of yttrium tantalate x-ray phosphors having the monoclinic M' structure. Persistence is reduced by incorporating a molybdenum or...
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