Angular Color Uniformity Improvement for Phosphor-converted White Light-Emitting Diodes by Optimizing Remote Coating Phosphor Geometry

摘要：

　　Angular color uniformity (ACU) of a king of popular remote phosphor coating LED packaging with spherical phosphor shape with uniform thickness was invested by the Monte Carlo ray tracing method.The simulation results indicate the yellowish ring cant be avoided under uniform phosphor thickness in angular range of 0°-180°.The optimized phosphor geometry was proposed whose thickness gradually reduces from the center to the edge.The optimized phosphor geometry can improve ACU 45%,compared with the initial uniform thickness phosphor layer.

作者: Huai Zheng Xing Fu Run Hu Sheng Liu Xiaobing Luo

作者单位: School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074 MOEMS division, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Te School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074

会议类型: 国际会议

会议名称: 9th China International Forum on Solid State Lighting(第九届中国国际半导体照明论坛)

会议地点: 广州

会议语种:英文

页码: 176-179

在线出版日期: 2012-11-05（万方平台首次上网日期，不代表论文的发表时间）