作　　者： (徐淳）; (杨波波）; (邹军）; (张易超）; (李杨）; (石明明）;

机构地区： 上海应用技术大学,上海201418

出　　处： 《中国照明电器》 2017年第7期16-19,共4页

摘　　要： 以主波长为535 nm的(Lu,Y)AG:Ce绿粉和主波长为625 nm的(Ca,Sr)Al Si N3:Eu红粉为研究对象,研究其复合荧光粉的光谱耦合性质和封装LED器件光效、色坐标和色温性能。复合荧光粉以绿粉比红粉为1.1:0.1、1.2:0.1、1.3:0.1、1.4:0.1这四种比例复合而成,随绿红比增加,复合荧光粉发光色坐标在色坐标图上线性变化,根据光学耦合特点,快速得到了2 500 K、2 700 K、3 000 K色温的LED封装需要的绿粉和红粉的比例,结果显示采用该两种粉获得的3 000 K色温的LED器件光通量、光效、显色指数等性能均最佳。 Based on the （Lu,Y）AG：Ce green phosphors（λem=535 nm） and （Ca, Sr）AlSiN3：Eu red phosphors（λem=625 nm）, the spectra coupling of two phosphors were investigated and the luminous efficiency, color coordinates and correlated color temperature of the composite phosphors converted warm white LED were measured. The spectra and color of composite phosphors which the weight proportion of green and red phosphors were designed as 1.1：0.1, 1.2：0.1, 1.3：0.1, 1.4：0.1 respectively were studied. The results show that the color coordinates of composite phosphors varies linearly in color coordinate diagram. The weight proportion of green and red phosphors needed for warm white LED with 2 500 K, 2 700 K, 3 000 K for CCT were obtained quickly due to the spectrum properties of composite phosphors. The results show that the LEDs with 3 000 K for CCT which obtained by the two phosphors have the best properties in luminous flux, luminous efficiency and color rendering index.

关 键 词： 暖白光 复合荧光粉 光谱耦合 色温