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    • 6. 发明授权
    • Long-persistence blue phosphors
    • 长持久蓝色荧光粉
    • US6117362A
    • 2000-09-12
    • US187944
    • 1998-11-06
    • William M. YenWeiyi JiaLizhu LuHuabiao Yuan
    • William M. YenWeiyi JiaLizhu LuHuabiao Yuan
    • C09K11/77C09K11/55C09K11/64
    • C09K11/7734C30B29/22
    • This invention relates to phosphors including long-persistence blue phosphors. Phosphors of the invention are represented by the general formula:MO . mAl.sub.2 O.sub.3 :Eu.sup.2+,R.sup.3+wherein m is a number ranging from about 1.6 to about 2.2, M is Sr or a combination of Sr with Ca and Ba or both, R.sup.3+ is a trivalent metal ion or trivalent Bi or a mixture of these trivalent ions, Eu.sup.2+ is present at a level up to about 5 mol % of M, and R.sup.3+ is present at a level up to about 5 mol % of M. Phosphors of this invention include powders, ceramics, single crystals and single crystal fibers. A method of manufacturing improved phosphors and a method of manufacturing single crystal phosphors are also provided.
    • 本发明涉及包括长持续性蓝光荧光体的荧光体。 本发明的荧光体由通式MO表示。 mAl 2 O 3:Eu 2+,R 3+,其中m为约1.6至约2.2的数,M为Sr或Sr与Ca和Ba或两者的组合,R3 +为三价金属离子或三价Bi或这些三价离子的混合物 ,Eu 2+以高达约5mol%的M存在,R3 +以高达M的约5mol%的量存在。本发明的荧光体包括粉末,陶瓷,单晶和单晶纤维。 还提供了制造改进的荧光体的方法和制造单晶荧光体的方法。