Investigation Of Color Shift Of Plastics Lenses In Led-Based Products

摘要：

　　Although color shift is one of the key issues to be considered for the failure of LEDs products,there is limited literature that correlated LED products’ lifetime performance to their color shift over time.This is mainly due to the lack of a suitable model to define the color shift over time.In this paper,a methodology for characterizing and predicting the color shift of the polycarbonate materials in LED products is developed.It had shown that the color shift follows the 1st order reaction.Furthermore,the rate coefficient k of the reaction was found to follow Arrhenius relationship with activation energy of 0.046eV.

作者: S. Koh M. Yazdan Mehr H. Ye J. Wei W.D. van Driel G.Q. Zhang

作者单位: Beijing Research Center,Delft University of Technology,Beijing,China;Delft University of Technology, Delft University of Technology,EEMCS Faculty,Delft,the Netherlands;Material innovation institute(M2i Delft University of Technology,EEMCS Faculty,Delft,the Netherlands;State Key Laboratory of Solid Sta Delft University of Technology,EEMCS Faculty,Delft,the Netherlands;Philips Lighting,Eindhoven,the Ne Beijing Research Center,Delft University of Technology,Beijing,China;Delft University of Technology,

会议类型: 国内会议

会议名称: 第十届中国国际半导体照明论坛

会议地点: 北京

会议语种:英文

页码: 170-173

在线出版日期: 2013-11-10（万方平台首次上网日期，不代表论文的发表时间）