LED灯具中光学器件的加速可靠性试验方法

2015 16th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems Pub Date : 2015-04-19 DOI:10.1109/EUROSIME.2015.7103127

M. Yazdan Mehr, W. V. van Driel, G. Zhang

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引用次数: 2

摘要

介绍了一种高加速应力测试(HAST)系统，用于研究双酚A聚碳酸酯(BPA-PC)和YAG制备的远端荧光粉板的光热稳定性和可靠性。远程荧光粉板与蓝光LED光源相结合，用于产生相关色温(CCT)为4000 K的白光。在本研究中，对3 mm厚度的远端荧光粉BPA-PC样品在80 ~ 120℃的温度范围内进行光热老化。蓝光照射在样品上，光强为13200w /m2。对YAG样品的热淬火进行了研究。结果表明，在热老化过程中，荧光粉的晶体结构是稳定的。

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Accelerated reliability test method for optics in LED luminaire applications

A high accelerated stress testing (HAST) system is introduced to study the photo-thermal stability and reliability of remote phosphor plates, made from Bisphenol-A polycarbonate (BPA-PC) and YAG. Remote phosphor plates, combined with a blue-light LED source, are used to produce white light with a correlated colour temperature (CCT) of 4000 K. In this study, the remote-phosphor BPA-PC samples of 3 mm thickness were photo-thermally aged at temperature range 80 to 120 °C. The blue light is radiated on the sample with light intensity of 13200 W/m2. Thermal quenching of the YAG samples is also studied. It is shown that crystallographic structure of phosphor is stable during thermal ageing.

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来源期刊

2015 16th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems

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