Due to the high lumens efficiency, good color reproduction characteristics of single matrix white phosphor, the research on it has great significance.
单一基质白光荧光粉因具有流明效率高、色彩还原性好等特点，所以对其研究的意义重大。
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Yellow phosphor still can't meet the requirement completely for white LED products at present, so it is imperative to raise the efficiency, reduce the granularity, and prepare the spherical phosphor.