Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2008.11a
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- Pages.1343-1348
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- 2008
Lifetime Estimation of High Power White LED for Lighting Use
고출력 조명용 White LED의 수명예측
- Published : 2008.11.05
Abstract
LEDs which have many merits are widely used in the field of light devices, and have rapidly replaced old light devices such as incandescent or fluorescent lamps. Long life, on the order of 50,000 to 100,000 hours, is one of the key features of light emitting diodes(LEDs) that has attracted the lighting community to this technology. High Power white LEDs have yet to demonstrate this capability. This paper planed accelerated life test that has two factor(temperature, current) and two levels. Finally, using ALTA programs, we estimated the common shape parameter of Weibull distribution, life-stress relationship, B10 life and accelerating factors.
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