基于LED劣化曲线的LED寿命外推方法及比较

2014 11th China International Forum on Solid State Lighting (SSLCHINA) Pub Date : 2014-11-01 DOI:10.1109/SSLCHINA.2014.7127242

Max Wagner, T. Khanh

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引用次数: 1

摘要

LED的光通量衰减取决于LED的类型和工作条件。这就是为什么对寿命的预测常常因情况而异。大多数情况下，测试时间太短，无法达到初始光通量的70%或80%。所以外推法必须用来预测寿命。在本研究中，比较了不同的方法和数学函数。

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

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.

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2014 11th China International Forum on Solid State Lighting (SSLCHINA)

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