| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for stably producing a blue or red light-emitting translucent phosphor. SOLUTION: In the blue light-emitting phosphor composed of an europium (Eu)-doped calcium fluoride (CaF<SB>2</SB>) sintered compact, the molar ratio of europium is set to be within a range of 0.001-1%. In the red light-emitting phosphor composed of an europium (Eu)-dope calcium fluoride (CaF<SB>2</SB>) sintered compact, the molar ratio of europium is set to be within a range of 8-10%. Translucency is imparted to the phosphor by subjecting the phosphor to a hot isostatic press treatment at a temperature of 1,000-1,300°C and pressure of 500-3,000 kg/cm<SP>2</SP>. COPYRIGHT: (C)2009,JPO&INPIT
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