Robustness of Point Light Source Approximation in Lens Design for Light-Emitting Diode Packages

摘要：

　　In this study,we examined the robustness of point light source approximation in lens design for light-emitting diode (LED) packages by Monte Carlo ray-tracing simulations.We modeled three representative freeform lenses first,and then simulated the lighting performance while changing the lensto- chip size ratio (LCR).It is found that with the decrease of LCR,the lighting performances of the three lenses are deteriorated and the illuminance uniformities are decreased.It is concluded that the robustness of point light source approximation in lens design is dependent on the lens and challenged for extended light source,especially for compact lens.

作者: Run Hu Zhili Zhao Sheng Liu Xiaobing Luo

作者单位: School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan,China School of Optoelelctronics Science and Engineering,Huazhong University of Science and Technology,Wuh School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan,Chi

会议类型: 国际会议

会议名称: 2012 International Conference on Electronic Packaging Technology & Hiigh Pachaging(2012电子封装和高密度封装国际会议(ICEPT-HDP2012))

会议地点: 桂林

会议语种:英文

页码: 1455-1458

在线出版日期: 2012-08-13（万方平台首次上网日期，不代表论文的发表时间）