Eastman-kodak Company

Philip S Bryan

Patrick M Lambert

Gregory S Jarrold

Christine M Towers

Joseph F Bringley

Andrea M Hyde

Barbara J Fisher

Arthur H Herz

Ignazio S Ponticello

James Albert Reczek

Paul Matthew Hoderlein

Frank V Lovecchio

Kyle E Smith

David P Trauernicht

Wayne A Bowman

Steven A Van Slyke

Luther C Roberts

Richard Earl Partch

Steven A VanSlyke

Patrick W Lambert

(Barium hafnate:Ti,Ce,Pb) phosphors, phosphor screens and phosphor preparation method. The phosphor screen includes a support and a luminescent portion. The phosphor includes oxygen and a combination of species characterized by the relationship:

(Barium hafnate:Ti, Ce, Pb) phosphors phosphor screens and phosphor

A radiographic phosphor panel and radiographic phosphor composition. The radiographic phosphor panel includes a support and a luminescent layer. The luminescent layer overlies the support. The luminescent layer includes binder and coated particles. The binder is a film-forming polymer. The coated particles are embedded in the binder. The coated particles each have a core and a shell. The core is radiographic phosphor. The shell is exterior to and substantially encloses the core. The shell comprises vinyl-epoxy resin, having uncured epoxy groups in a concentration of from about 1.times.10.sup.-5 to about 60 percent by weight relative to the weight of the shell. The resin has a different composition than the binder.

Coated radiographic phosphors and radiographic phosphor panels

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 luminescent layer overlaying the support. The luminescent layer includes phosphor crystals, binder, oxosulfur reducing agent, and oxosulfur reducing pigment. The phosphor crystals include iodine. The oxosulfur reducing agent is dispersed within the luminescent layer on a substantially molecular basis. The oxosulfur reducing pigment is dispersed within the layer as a particulate. The oxosulfur reducing agent and the oxosulfur reducing pigment are each a reducing agent for iodine. The oxosulfur reducing agent and the oxosulfur reducing pigment have a combined concentration sufficient to substantially increase the photostimulated luminescence of the panel.

Radiographic phosphor panel having both binder compatible oxosulfur

A radiographic phosphor panel having oxosulfur functionalized polymer reducing agents. The phosphor panel has a support and a luminescent layer overlaying the support. The luminescent layer includes phosphor crystals, and binder. The oxosulfur functionalized polymer reducing agent is present in a concentration sufficient to substantially increase the photostimulated luminescence of the panel.

Radiographic phosphor panel having oxosulfur functionalized polymer

A radiographic phosphor panel having an organolead reducing agent. The phosphor panel has a support and a luminescent layer overlaying the support. The luminescent layer can include phosphor crystals, binder and organolead reducing agent. The organolead reducing agent has a concentration sufficient to substantially increase the photostimulated luminescence of the panel.

Radiographic phosphor panel having organolead reducing agents

A method, a storage phosphor prepared by the method, and a storage panel. In the method, a precursor mixture is fired, at a temperature between 700.degree. C. and the melting point of the phosphor, to produce an intermediate product. The precursor mixture comprises a combination of species characterized by the relationship:

Annealed alkaline earth metal fluorohalide storage phosphor, preparation

A radiographic phosphor panel having metal hydride stabilizer compound. The phosphor panel has a support and a luminescent layer overlaying the support. The luminescent layer includes phosphor crystals, and binder. The oxosulfur reducing agent can be added to the luminescent layer. The oxosulfur reducing agent has a concentration sufficient to substantially increase the photostimulated luminescence of the panel.

Radiographic phosphor panel having metal hydride stabilizing compound

A radiographic image storage phosphor, stabilized intermediate, and methods for preparing storage phosphor, and stabilized intermediate. The storage phosphor is the product of firing a combination of species characterized by the relationship:

Stabilized phosphor intermediates, storage phosphors, radiation image

A radiation image storage phosphor; a composition of matter including the storage phosphor and a stabilizer for iodine; and a radiation image storage panel including the inventive phosphor. The storage phosphor has a combination of species characterized by the relationship:

Alkaline earth metal fluorobromoiodide storage phosphor, and radiation

A radiographic phosphor panel having binder compatible oxosulfur stabilizer and a preparation method. The phosphor panel has a support and a luminescent layer overlaying the support. The luminescent layer includes phosphor crystals, binder and an oxosulfur reducing agent. The oxosulfur reducing agent is dispersed within the luminescent layer on a substantially molecular basis. The oxosulfur reducing agent is a reducing agent for iodine. The oxosulfur reducing agent has a concentration sufficient to substantially increase the photostimulated luminescence of the panel.

Radiographic phosphor panel having binder compatible oxosulfur

A phosphor composition which comprises oxygen and a combination of elements satisfying the relationship:

Hafnium stannate phosphor composition and X-ray intensifying screen

A phosphor composition is disclosed containing a titanium free hafnium zirconium germanate phosphor which emits electromagnetic radiation principally in the spectral region to which silver halide exhibits native sensitivity. To maximize the intensity of emission the ratio of host metals satisifies the relationship:

Phosphor composition and X-ray intensifying screen exhibiting peak

An internal junction organic electroluminescent device is disclosed comprised of, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic electron injecting and transporting zone is comprised of an electron injecting layer in contact with the cathode and, interposed between the electron injecting layer and the organic hole injecting and transporting zone, a blue emitting luminescent layer comprised of an aluminum chelate containing a phenolato ligand and two R.sup.S -8-quinolinolato ligands, where R.sup.S substitutents are chosen to block the attachment of more than two substituted 8-quinolinolato ligands to the aluminum atom. The presence of the phenolato ligand shifts device emission to the blue region of the spectrum and increases emission efficiency. Device emission is shifted to even shorter blue wavelengths and increased operating stability can be realized by the incorporation of a pentacarbocyclic aromatic fluorescent dye.

Blue emitting internal junction organic electroluminescent device (II)

A blue-emitting luminescent composition is disclosed comprised of an aluminum chelate containing a phenolato ligand and two R.sup.s -8-quinolinolato ligands, where R.sup.s substituents are chosen to block the attachment of more than two substituted 8-quinolinolato ligands to the aluminum atom. The presence of the phenolato ligand shifts emission to the blue region of the spectrum. Emission can be shifted to even shorter blue wavelengths by the incorporation of a pentacarbocyclic aromatic fluorescent dye.

Mixed ligand 8-quinolinolato aluminum chelate luminophors

A phosphor composition is disclosed containing a titanium activated hafnium zirconium germanate phosphor which emits electromagnetic radiation principally in the spectral region to which silver halide exhibits native sensitivity. To maximize the intensity of emission the ratio of host metals satisfies the relationship:

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Webster, NY, United States of America

Philip S Bryan