The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2011
Filed:
Dec. 12, 2007
Holly Ann Comanzo, Niskayuna, NY (US);
Alok Mani Srivastava, Niskayuna, NY (US);
William W. Beers, Chesterland, OH (US);
Sergio Paulo Martins Loureiro, Saratoga Springs, NY (US);
Anant Achyut Setlur, Niskayuna, NY (US);
Stanley John Stoklosa, Clifton Park, NY (US);
Claire S. Henderson, Schenectady, NY (US);
Holly Ann Comanzo, Niskayuna, NY (US);
Alok Mani Srivastava, Niskayuna, NY (US);
William W. Beers, Chesterland, OH (US);
Sergio Paulo Martins Loureiro, Saratoga Springs, NY (US);
Anant Achyut Setlur, Niskayuna, NY (US);
Stanley John Stoklosa, Clifton Park, NY (US);
Claire S. Henderson, Schenectady, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A long-lived phosphor composition is provided, along with methods for making and using the composition. More specifically, in one embodiment, the phosphor comprises a material having a formula of AAlO:Eu, RE, B, Zn, Co, Sc. In this formula, A may be Ba, Sr, Ca, or a combination of these metals, x is between about 0.75 and 1.3, y is between about 0.0005 and 0.1, z is between about 0.0005 and 0.1, m is between about 0.0005 and 0.30, n is between about 0.0005 and 0.10, o is between about 0 and 0.01 and p is between about 0 and 0.05. RE is Dy, Nd, or a combination thereof. In another embodiment, methods are provided for making persistent phosphors comprising the formulations above. Other embodiments provide applications for such a phosphor, comprising uses in toys, emergency equipment, clothing, and instrument panels, among others.
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