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5932140 |
Phosphor having improved luminescense efficiency and a process for preparing the same
A phosphor for a low voltage display device having a host and a metal salt or metal oxide dispersed on the surface of the host with improved luminescence efficiency which can be prepared at a low...
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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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5904995 |
Rare earth activated alkaline earth metal fluorohalide stimulate phospor and radiation image conversion
A stimulable phosphor is disclosed, comprising a rare earth activated alkaline earth metal fluorohalide stimulable phosphor, wherein the rare earth of the phosphor is a rare earth metal selected...
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5897812 |
Doped amorphous and crystalline gallium oxides alkaline earth gallates and doped zinc germanate phosphors as electroluminescent materials
New oxide phosphors based on doped gallium oxides, alkaline earth gallates and germanates for electoluminescent display materials. Bright orange red electroluminescence has been obtained in...
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5895604 |
Rare earth activated alkaline earth metal fluorohalide stimulable phosphor of tetradecahedral type
Rare earth activated alkaline earth metal fluorohalide stimulable phosphors of tetradecahedral type are disclosed. The stimulable phosphors of tetradecahedral type are represented by the following...
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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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5894067 |
Composition for generating far infrared rays
A portable device for carrying with the human body includes a far infrared ray generating composition plate, a magnetic radiating unit, an electronic circuit unit, and a mercury battery disposed on...
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5885483 |
Long afterglow phosphor and a process for the preparing thereof
The invention relates to a long afterglow phosphor and a process for preparing the phosphor, characterized in that the phosphor comprises the sinter expressed by a general formula MO(n-x) a Al 2...
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5885484 |
High temperature thermometric phosphors
A high temperature phosphor consists essentially of a material having the general formula LuPO 4 :Dy (x),Eu y ) wherein: 0.1 wt %≤x≤20 wt % and 0.1 wt %≤y≤20 wt %. The high temperature...
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5882547 |
X-ray scintillators and devices incorporating them
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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5879586 |
Method for producing aluminate phosphor
An alkaline earth metal compound containing no fluorine atoms in its molecules, a rare earth compound containing no fluorine atoms in its molecules, and an aluminum compound containing no fluorine...
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5868963 |
Green Luminophor material and method of manufacture
The disclosure relates to a family of luminophors Ba z -Al 12 -x Mn x O 19 with 0.8≤z≤1.3, wherein x ranges from 0.2 to 0.7 and has a time of decay, to 10% of the light energy emitted, of...
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5866039 |
Luminescent device for displays and lighting
A luminescent composition which is a uniform admixture of a least one phosphor having a particle size of about ten micrometers or less and at least one sol gel compound in an amount sufficient to...
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5853614 |
Long decay luminescent material
Long decay luminescent materials having improved long decay time and improved high brightness is represented by the formula as Sr 0 .9995 .about. 0 .998 Eu 0 .0005 .about. 0 .002)Al 2 O 4 ...
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5851428 |
Phosphor and manufacturing method thereof
A raw material prepared by washing a phosphor powder containing a phosphor host material and an activator with an acid solution, followed by drying the washed powder, is heated within a thermal...
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5849218 |
Fluorescent pool coating
Relates to an outer or top coating for water retention structures that comprises a water insoluble fluorescent compound that is invisible to the human eye under normal lighting conditions but which...
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5849425 |
Method for producing a red-luminescence fluorescent material with high luminous efficiency
The red-luminescence fluorescent material obtained by addition of a composite flux of potassium salt or sodium salt, has an excellent color production region and luminance simultaneously, and has...
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5811822 |
Optically transparent, optically stimulable glass composites for radiation dosimetry
An optically transparent and optically stimulable glass composite includes glass matrix that has both luminescent centers and trapping centers. The trapping centers store trapped charges and, in...
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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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5798306 |
Rare earth doped oxyhalide laser glass
The oxyhalide rare earth doped laser glass of the present invention comprises the substitution of fluorine for oxygen in glasses having the general molar batch composition of 50% SiO 2 , 25% CaO,...
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5788883 |
Determination process for determining if quantum splitting phosphors are obtained and novel compositions
Quantum splitting phosphors with host lattices activated by praseodymium +3 where covalency of the Pr +3 -ligand bond is maintained so that the center of gravity of the Pr +3 4f5d band level is...
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5788882 |
Doped amorphous and crystalline alkaline earth gallates as electroluminescent materials
New phosphors based on doped alkaline earth gallates for electroluminescent (EL) display materials. Bright red EL has been obtained in amorphous and crystalline alkaline earth gallates doped with...
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5783107 |
Method for the manufacture of a luminophore
A method for the manufacture of a luminophore comprising the following steps: a) the weighing of the different constituent materials in powder form; b) mixing in an aqueous medium; c) the...
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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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5776368 |
Borate phosphor synthesis using boron nitride
An improved method for a single step firing synthesis of borate phosphors wherein at least about half the amount of a volatile, low melting point, boron source such as boric acid or boron oxide is...
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5772917 |
Luminescent zeolite
The invention relates to a luminescent zeolite of the Faujasite type containing Ce 3 + ions. Such a zeolite can for instance be used in the luminescent screen of a low pressure mercury discharge...
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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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5770111 |
Phosphor with afterglow characteristic
A phosphor exhibiting afterglow more intensely and persistently than (Sr, Eu, Dy)O.Al 2 O 3 phosphors. The phoshor has a chemical composition comprising mainly an Eu 2 + activated strontium...
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5762827 |
Yttrium tantalate x-ray phosphors with increased luminance and particle size
A monoclinic M' yttrium tantalate x-ray phosphor containing a dopant selected from silicon or germanium to increase phosphor particle size and/or brightness. The phosphor is made by adding a...
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5746942 |
Erbium-doped low phonon hosts as sources of fluorescent emission
A high-efficiency fluorescent emitter includes an excitation source and a w phonon host doped with erbium. The emitter can be used as a lasing medium or as a phosphor. Typical hosts include RcX 3 ...
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5739632 |
Luminescent phosphor screen containing catena-polyphosphate
The invention relates to a display screen comprising a phosphor composition of a sulphide and/or selenide-containing phosphor which is provided with a coating which comprises one or more...
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5734166 |
Low-energy neutron detector based upon lithium lanthanide borate scintillators
An apparatus for detecting neutrons includes a cerium activated scintillation crystal containing 10 B, with the scintillation crystal emitting light in response to α particles emitted from the ...
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5723224 |
Phosphorescent material
A phosphorescent material has an excellent life time characteristic when it is applied to display device such as a fluorescent display device and includes a body portion composed of alkali metal...
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5723070 |
Phosphor for color cathode ray tube and manufacturing method thereof
A phosphor for a color cathode ray tube (CRT) characterized in which the phosphor is coated with a charge regulator such as nigrosine or quaternary ammonium salt and manufacturing method thereof...
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5716546 |
Reduction of lag in yttrium tantalate x-ray phosphors
Phosphor lag was reduced to acceptable levels in high lag monoclinic M' yttrium tantalate x-ray phosphors through the addition of minor amounts europium to the phosphors. In particular, europium...
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5714835 |
Xenon excimer radiation source with fluorescent materials
A xenon excimer (Xe 2 ) radiation source for producing vacuum ultraviolet (VUV), broad-band, molecular radiation of wavelengths shorter than 200 nm includes fluorescent materials for excitation by...
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5707548 |
Materials and device incorporating phoshors
A storage phosphor material comprising a storage phosphor of the kind in which electrons excited by incident ionizing radiation may be trapped in stable trap sites and subsequently released by...
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5707549 |
Phosphor, manufacturing method therefor, and cathode-ray tube using the same
To provide a stable phosphor with a high brightness and little luminous degradation, a phosphor comprises yttrium, aluminum (a part or the whole of aluminum may be replaced with gallium), and...
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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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5686022 |
Phosphorescent phosphor
A phosphorescent phosphor comprising a matrix expressed by M 1 -x Al 2 O 4 -x (except X=0) in which M is at least one metal element selected from a group consisting of calcium, strontium and...
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5674430 |
Lithium borosilicate phosphors
A phosphor comprising a host consisting essentially of lithium borosilicate having the general formula Li x Mg y B 2 Si 6 O z F w , where x can be 2 or 6, y can be 6 or 4, z can be 19.75 or 20...
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5670086 |
Vitrified phosphor articles, intermediates, and preparation methods
Vitrified phosphor articles, intermediates, and methods for preparing the articles. In the methods, a combination of species are admixed. The combination of species are precursors for a...
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5667723 |
Luminophores comprising doped tantalates of yttrium/lutetium/gadolinium
Particulates of a luminophore comprising a doped tantalate of yttrium, lutetium or gadolinium are well suited for low-voltage applications, e.g., for the manufacture of field emission display screens.
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5665660 |
Glass composition for bonding a phosphor and a fluorescent lamp
The object of the present invention is to provide a glass composition which has a sufficient bonding strength for bonding a fluorescent film with a glass tube, does not hinder decomposition of the...
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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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5658495 |
Mn-dope Na-Li-taenolite
Inorganic intercalation phosphors were made by doping an inorganic intercalation compound having an atomic structure interspersed with vacant spaces with selected activator ions capable of...
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5656199 |
Terbium or europium activated highly charged fluoropholopite phosphor
Inorganic intercalation phosphors having either the general formula Na 2 (Mg 3 -x Tb x ) Al 2 Si 2 O 10 F 2 or Na 2 Mg 3 {(Al 2 -x Eu x )Si}O 10 F 2 , were made by doping an inorganic,...
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5651804 |
Copper activated thermoluminescence dosimeter and method
A novel copper activated thermoluminescence dosimeter comprising a glass composition having: about 94-97 weight percent SiO 2 ; about 0.4 to 2 weight percent Al 2 O 3 ; about 0.02 to 1 weight...
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