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PHOSPHOR MATERIAL AND LAMP

2025-06-18 22:283870下载
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PROBLEM TO BE SOLVED : To provide an apatite type phosphor material using a new rare earth element as a light-emitting center and showing less deterioration in using it e.g. as a fluorescent lamp, and the lamp. SOLUTION : This phosphor material is expressed by L(28+x)/3(Si6O24-xNx)O2 : R [wherein, L is 1 or ≥2 elements selected from the group consisting of lanthanoids and Y; 0
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