Optical simulation analysis of high power LED package structure
The single LED package structure determines the light intensity distribution and the well-designed package structure will be conductive to light emitting and improve its external quantum efficiency. This paper based on the optical package structure of high power LED, in order to analyze the influence of the structure of LED package on optical performance and the feasibility of the packaging structure design, the simplified high power LED optical models were established in Tracepro software. The light distribution curve of LED was obtained and the difference between measured data and simulation result was compared. By changing the LED optical model parameters in the experiment, such as: the shape of reflector, lens design and the position of phosphors to get the light distribution curves under different parameters of package structure and then we analyze the effect of various packaging structures on optical performance to find the package structure optimization, so that it could be used in actual production getting a higher available luminous flux and the light extraction. Whats more, designing a package structure which can be achieving the specific light intensity distribution meets the requirements of the LED light source in different areas.
YinongLiu YipingWu Bing An
Huazhong University of Science & Technology, Wuhan 430074, China Wuhan National Laboratory for Optoe Huazhong University of Science & Technology, Wuhan 430074, China Wuhan National Laboratory for Optoe Huazhong University of Science & Technology, Wuhan 430074, China Wuhan National Laboratory for Optoe
国际会议
2011 International Symposium on Advanced Packaging Materials(2011年先进电子封装材料国际会议APM)
厦门
英文
99-103
2011-10-25（万方平台首次上网日期，不代表论文的发表时间）