| 简介 |
PROBLEM TO BE SOLVED : To provide a manganese-activated rare earth aluminate phosphor with a high luminous intensity and an excellent color purity, and to provide a fluorescent lamp with a high light flux and a wide color reproduction range.
SOLUTION : The manganese-activated rare earth aluminate phosphor represented by the following general formula has a high luminous intensity and a high color purity by the excitation with an ultraviolet ray, and the fluorescent lamp using the phosphor has a high light flux for a lamp with a wide color reproduction range. wherein the general formula is Ce(Mga, Znb, Mnc)zAl11O19 (in the formula, 0.10≤z≤0.90, 0
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