Combined phosphor

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专利汇可以提供Combined phosphor专利检索,专利查询,专利分析的服务。并且PURPOSE: To provide a combined phosphor emitting in the yellow, orange, etc. of high purity and having a preferrable afterglow property of 10W20msec in afterglow time, by incorporating borates of indium, yttrium and europium having a specific compsn. formula.
CONSTITUTION: A Eu-activated indium borate phosphor or Eu-activated indium yttrium borate phosphor having a compsn. formula as shown (wherein x, y are 0≤x≤0.60, 0.005≤y≤0.30, respectively) and one or more different phosphors free from cadmium are mixed to yield combined phosphor. The emission of said phosphor under excitation by electron beam has an effective 10% afterglow time of 10msec or above and a chromaticity within a region surrounded by three straight lines on the CIE chromaticity coordinate: x=0.6, y=x+0.05, and a straight line connecting point A (x=0.60, y=0.39) with point B (x=0.44, y=0.49) and by a spectrol locus on the CIE chromaticity diagram.
COPYRIGHT: (C)1984,JPO&Japio,下面是Combined phosphor专利的具体信息内容。

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