| 简介 |
PROBLEM TO BE SOLVED : To provide a fluorescent body capable of generating fluorescence at high light-emission intensity without containing an expensive and rare earth element, and to provide a fluorescent lamp using the fluorescent body, both at low cost.
SOLUTION : The fluorescent body is represented by formula : M1x(Snl-yTiy)2M2zM3cOr (wherein M1 is either Ca or Na, M2 is either Al or Si, M3 is a transition element of any of Zr, Hf, Nb, and Ta, x is a number satisfying 1.5≤x≤2.5, y is a number satisfying 0.01
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