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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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6103296 |
Method for improving the screen brightness of gadolinium oxysulfide x-ray phosphors
A method is provided for improving the x-ray screen brightness of gadolinium oxysulfide x-ray phosphors. The method applies annealing and acid washing steps in a specific order following...
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6093492 |
Phosphor composition with a hydroxycarboxylic-acid coating
A phosphor composition of a sulphide-containing phosphor with a coating comprising a hydroxycarboxylic acid can be stored as a dry substance in the desagglomerated state and can be readily...
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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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6074575 |
Thin film electro-luminescence device
A thin film electro-luminescence composition comprising an alkaline earth metal thiogallate represented by the following compositional formula: ##EQU1## wherein M 1 is Sr or Ba; RE is a lanthanoid...
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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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6043602 |
Alternating current thin film electroluminescent device having blue light emitting alkaline earth phosphor
A light emitting phosphor having improved luminance is incorporated into an ACTFEL device having front and rear electrode sets, a pair of insulators sandwiched between the front and rear electrode...
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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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6025675 |
Cathode-ray tube and blue phosphor
In a cathode-ray tube, a phosphor screen is formed by employing a blue phosphor obtained by mixing Cu with ZnS:Ag, Al in a normal solid phase reaction, then forming the phosphor solution on the...
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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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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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5958295 |
Terbium-activated rare earth oxysulfide phosphor with enhanced blue emission
A terbium-activated rare earth oxysulfide phosphor with an enhanced blue emission is disclosed. The phosphor includes a rare earth oxysulfide matrix of the nominal formula M 2 -x O 2 S:xTb, where...
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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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5955210 |
Electroluminescent device containing blue light emitting material
In an EL device in which a blue light emitting material obtained by doping Ce as a luminescent center into Ca X S Y host material is used for a luminescent layer, values of X and Y in the CaGa X ...
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5908698 |
Encapsulated electroluminescent phosphor and method for making same
Encapsulated electroluminescent phosphor particles and method for making same. The phosphor particles are encapsulated in a very thin oxide layer to protect them from aging due to moisture...
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5906771 |
Manufacturing process for high-purity phosphors having utility in field emission displays
A process is provided for manufacturing high-purity phosphors having utility in field emission displays. The high-purity phosphor is a host lattice infiltrated by a dopant that activates...
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5906721 |
Composition and method for preparing phosphor films exhibiting decreased coulombic aging
Phosphor screens are disclosed that exhibit decreased Coulombic aging and/or lower threshold voltages. The phosphor compositions and electrochemical methods for making those screens are also...
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5893999 |
Ultrafine inorganic phosphor, specifically binding material labeled with this phosphor, and detection method using this specific binding material
A specific binding material labeled with an ultrafine inorganic phosphor 1 to 100 nm in particle size is disclosed The composition of the ultrafine inorganic phosphor is one of Ln 2 O 3 :Re, Ln 2...
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5888424 |
Fluorescent fluoroplastics
Fluoroplastics become identifiable as to source by incorporating 1 to 450 ppm of inorganic phosphor into the fluoroplastic which does not degrade the fluoroplastic upon processing at a temperature...
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5879588 |
Terbium-activated gadolinium oxysulfide phosphor with reduced blue emission
A fluorine-free, terbium-activated gadolinium oxysulfide phosphor with an enhanced green:blue emission ratio is disclosed. The phosphor includes a gadolinium oxysulfide matrix of the nominal...
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5853945 |
High-contrast silver halide photographic material and photographic image forming system using the same
A silver halide photographic material for mammography comprising a support having on one side thereof at least two light-sensitive emulsion layers different in sensitivity, in which the uppermost...
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5844361 |
Field emission display having a stabilized phosphor
A field emission display (100, FIG. 1) having a stabilized phosphor (110, FIG. 1) includes a cathode plate (130, FIG. 1) having a plurality of field emitters (160, FIG. 1), an anode plate (120,...
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5814245 |
Fluorescent and cathodoluminescent phophors structurally related to sodalite
Blue, quantum-confined phosphors for field-emission displays made by reducing metal (M) sulfoaluminates at high temperature. This yields phases of the type M 4 (AlO 2 ) 6 S. Bulk sulfide...
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5798059 |
Color display screen comprising a contrast-enhancing pigment
A color display screen having a coating which comprises at least a greend an/or a red phosphor as well as at least a pigment having the following composition: Ga a In b Zn c Al d O n S m Se...
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5783106 |
Lithium doped terbium activated gadolinium oxysulfide phosphor
The brightness of small size terbium activated gadolinium oxysulfide (Gd 2 -x Tb x O 2 S) phosphor is increased by the incorporation of a lithium dopant. The lithium dopant is added to the...
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5772916 |
Phosphor screen, method of producing the same, and method for preparing a phosphor powder for producing a phosphor screen
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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5772918 |
Red fluorescent composition for color cathode-ray tube
An europium activated yttrium oxysulfide fluorescencer composition for color cathode-ray tube is disclosed, wherein a first red fluorescencer with predetermined particle size and a second red...
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5695685 |
Phosphor with modified surface composition and method for preparation
A surface modified phosphor powder exhibiting increased lumen maintenance. At the outer surface of each phosphor particle, the cations of the phosphor material have been replaced by other cations,...
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5662831 |
Luminescent phosphor and methods relating to production thereof
There is disclosed a luminescent phosphor having an average particle size of less than about 3 microns, as well as a bright luminescent phosphor having an average particle size of less than 5...
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5641583 |
Radiographic phosphor panel having both binder compatible oxosulfur stabilizer and oxosulfur pigment and method for preparing phosphor panel
A radiographic phosphor panel having both binder compatible oxosulfur reducing agent and oxosulfur reducing pigment, and a preparation method. The radiographic phosphor panel has a support and a...
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5629126 |
Phosphor film composition having sensitivity in the red for use in image capture
A composition for use in constructing a photosensitive film for recording an image. The composition includes first, second, and third particle types, each the particle type including a crystalline...
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5609793 |
Fluorescent substance, method for production thereof, radiation detector using the fluorescent substance, and X-ray CT apparatus using the radiation detector
A fluorescent substance is comprised of a rare earth oxysulfide represented by the chemical formula, R 2 (1-x) Pr 2x O 2 S, wherein R stands for at least one member selected from the group...
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5575940 |
Inverse limited coalescence process
Particles having a controlled particle size distribution and morphology are made from inorganic hydrophilic materials by dispersing inorganic hydrophilic material in a dispersant to form a...
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5571460 |
Liquid composition emitting far infrared rays and method for preparation thereof
A liquid (ionized) composition emitting far infrared rays and a method for preparation thereof which can be used for a variety of applications is disclosed. The composition is prepared according to...
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5562860 |
Phosphor having reduced afterglow
A phosphor for a radiation detector is based on a phosphor ceramic of a rare earth oxisulfide with the general sum formula (M 1 -x Ln x ) 2 O 2 S, wherein M is at least one element from the group...
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5560867 |
Phosphor with an additive for reducing afterglow
A new and improved phosphor composition for a radiation detector is provided which includes a rare earth oxisulfide phosphor ceramic containing an afterglow reducing amount of an afterglow...
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5558815 |
Single crystal of compound, laser rod, laser oscillator, scintillator, CT scanner, color display and process for preparing the same
A single crystal of a compound comprises a single crystal of a compound at least part of components is of the above mentioned material decomposed at a temperature around the melting point, having a...
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5558817 |
Green-luminescing zinc sulphide and cathode ray tube provided with this zinc sulphide
The invention relates to a luminescent zinc sulphide of cubic structure (sphalerite) which is so activated by aluminum and copper that a green-emitting luminescent material is created. In a simple...
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5549844 |
Radiographic phosphor panel, phosphor and phosphor modification method
A radiographic phosphor panel, phosphor, and phosphor modification method. The radiographic phosphor panel has a luminescent layer including a mass of phosphor particles. The phosphor particles...
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5518658 |
Phosphor having reduced afterglow and method for manufacturing same
A phosphor for a high energy radiation detector is formed by a rare earth oxisulfide having the general sum formula (M 1 -x Ln x ) 2 O 2 S, wherein M is at least one element of the group Y, La...
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5518659 |
Method for manufacturing a phosphor having high translucency
In an improved method for manufacturing a phosphor ceramic on the basis of a rare earth oxisulfide, a phosphor powder having a high specific surface of more than 10 m 2 per gram is employed and is...
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5500147 |
Scintillation solid and method of measuring radiation
A monolithic solid scintillation body with a monocrystalline or polycrystalline morphology having generally constant luminescence from about 25° C. to at least about 200° C. and average crystal...
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5498369 |
Method of manufacturing ZnS particles
The invention relates to a method of manufacturing ZnS particles by wet-chemical precipitation from aqueous zinc salt solutions, ZnS being precipitated onto nuclei introduced into the solution....
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5435938 |
Cathode-ray tube fluorescent material and its method of manufacture
Electrolytes are attached to fluorescent particle surfaces to prevent open spots in cathode-ray tube coatings dried at high temperatures. Electrolytes that are sulfates, nitrates, or chlorides of...
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5418062 |
Encapsulated electroluminescent phosphor particles
Encapsulated electroluminescent phosphor particles and method for making same. The phosphor particles are encapsulated in a very thin oxide layer to protect them from aging due to moisture...
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5403403 |
Method for processing fluorescent material
A method for processing fluorescent material which removes various impurities contained in fluorescent material recovered in developing a fluorescent coating on a fluorescent screen of a color...
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5394055 |
Color picture tube with the fluorescent film of the red emission component having a mixture of europium activated rare earth oxide phosphors
The object of the present invention is to provide a color picture tube, which has a fluorescent film of a red emission component exhibiting a red emission with a deep color tone and is excellent in...
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5391959 |
Fluorescent lamps and improved yytrium-containing phosphors useful therein
Yttrium-containing phosphors can be stabilized for use in an aqueous slurry containing a binder, which slurry can be used for coating fluorescent lamps by treating with ammonium dihydrogen...
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