Methods of extrapolation of the LED life time and their comparison based on some LED degradation curves

摘要：

　　The degradation of luminous flux of LEDs is dependent on the type of LED and its operation conditions.That is why a prediction of lifetime often differs from case to case.Mostly,the testing times are too short to reach 70 or 80 % of the beginning luminous flux.So extrapolation has to be used to predict the lifetime.In this study different methods and mathematical functions are compared.

会议类型: 国内会议

会议名称: 第十一届中国国际半导体照明论坛

会议地点: 宜昌

会议语种:英文

页码: 1-3

在线出版日期: 2014-05-15（万方平台首次上网日期，不代表论文的发表时间）