Searched for:
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document
Verdult, E. (author)
journal article 2013
document
Liu, M. (author), Rong, B. (author), Salemink, H.W.M. (author)
journal article 2007
document
Yazdan Mehr, M. (author), Van Driel, W.D. (author), Zhang, G.Q. (author)
A methodology, based on accelerated degradation testing, is developed to predict the lifetime of remote phosphor plates used in solid-state lighting (SSL) applications. Both thermal stress and light intensity are used to accelerate degradation reaction in remote phosphor plates. A reliability model, based on the Eyring relationship, is also...
journal article 2015
document
Van Dijk, T. (author)
For more than a century, light has come from glass shell. But it won’t for much longer, believes Prof. GQ (Kouchi) Zhang. “Light emitting diodes are going to liberate light.”
journal article 2013
document
Sun, B. (author), Fan, Xuejun (author), Ye, H. (author), Fan, Jiajie (author), Qian, Cheng (author), van Driel, W.D. (author), Zhang, G.Q. (author)
In this paper, an integrated LED lamp with an electrolytic capacitor-free driver is considered to study the coupling effects of both LED and driver's degradations on lamp's lifetime. An electrolytic capacitor-less buck-boost driver is used. The physics of failure (PoF) based electronic thermal simulation is carried out to simulate the lamp's...
journal article 2017
document
Yazdan Mehr, M. (author), van Driel, W.D. (author), Zhang, G.Q. (author)
A methodology, based on accelerated degradation testing, is developed to predict the lifetime of remote phosphor plates used in solid-state lighting (SSL) applications. Both thermal stress and light intensity are used to accelerate degradation reaction in remote phosphor plates. A reliability model, based on the Eyring relationship, is also...
journal article 2015
document
Yazdan Mehr, M. (author), van Driel, W.D. (author), De Buyl, Francois (author), Zhang, G.Q. (author)
Degradation mechanisms of silicone plates under harsh environment conditions are studied in this investigation. Environmental degradation of silicone free form, used as secondary optics in Light Emitting Diode LED lighting lamps and luminaires or any other applications requiring high quality optics being used, has negative implications for the...
journal article 2018
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