摘要
介绍了LED光输出寿命的预测模型,引入数理统计学的基本原理并采用一元线性回归公式,分析解读了LM-80报告与LED光通维持寿命预测图。揭示出LED光输出寿命的预测建立在至少6 000h检验的数理统计学的基础上,对于LED可靠性研究具有一定的现实意义。
The lifetime forecast model of power-LED is introduced at first, at the same time, LM-80 reports, lifetime forecast chart of lumen maintenance and L70 extrapolation are analyzed based on the principles of mathematical statistics and the equation of linear regression. The results show that using lumen maintenance data should be rested on the base of mathematical statistics, and the testing time should be more than 6,000h. And this will be helpful to power-LED reliability research.
出处
《中国照明电器》
2010年第8期1-5,共5页
China Light & Lighting
关键词
LED
光通量
光通维持寿命
线性回归分析
LED
luminous flux
lumen maintenance lifetime
linear regression analysis
