The studies of power efficiency with different phosphor parameters in white LEDs
碩士 === 國立中央大學 === 光電科學研究所 === 99 === In this thesis, we studied on the power efficiency with different phosphor concentrations and thicknesses in white LEDs. Based on our silicate phosphor model, we used a blue light laser to excite phosphor plates with different concentrations and thicknesses and a...
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ndltd-TW-099NCU056140522017-07-06T04:42:56Z http://ndltd.ncl.edu.tw/handle/04603491135103694114 The studies of power efficiency with different phosphor parameters in white LEDs 螢光粉參數對於白光LED封裝效率之研究 Yow-shiuan jeng 鄭又瑄 碩士 國立中央大學 光電科學研究所 99 In this thesis, we studied on the power efficiency with different phosphor concentrations and thicknesses in white LEDs. Based on our silicate phosphor model, we used a blue light laser to excite phosphor plates with different concentrations and thicknesses and analysis the forward power, sideward power and backward power of each phosphor plate in the first time. We also did the experiment to verify our simulation and then used the measurement results to analysis the power efficiency in white LEDs later. Secondly, we changed the light source from a blue light laser to a blue LED and researched the power efficiency with different phosphor concentrations and thicknesses under the remote phosphor configuration. Besides, we also changed the surface reflectance in the simulation in order to figure out the reciprocal effects among phosphor concentration, phosphor thickness and power efficiency in white LEDs. Ching-cherng Sun 孫慶成 2011 學位論文 ; thesis 86 zh-TW |
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碩士 === 國立中央大學 === 光電科學研究所 === 99 === In this thesis, we studied on the power efficiency with different phosphor concentrations and thicknesses in white LEDs. Based on our silicate phosphor model, we used a blue light laser to excite phosphor plates with different concentrations and thicknesses and analysis the forward power, sideward power and backward power of each phosphor plate in the first time. We also did the experiment to verify our simulation and then used the measurement results to analysis the power efficiency in white LEDs later. Secondly, we changed the light source from a blue light laser to a blue LED and researched the power efficiency with different phosphor concentrations and thicknesses under the remote phosphor configuration. Besides, we also changed the surface reflectance in the simulation in order to figure out the reciprocal effects among phosphor concentration, phosphor thickness and power efficiency in white LEDs.
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Ching-cherng Sun |
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Ching-cherng Sun Yow-shiuan jeng 鄭又瑄 |
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Yow-shiuan jeng 鄭又瑄 |
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Yow-shiuan jeng 鄭又瑄 The studies of power efficiency with different phosphor parameters in white LEDs |
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Yow-shiuan jeng |
title |
The studies of power efficiency with different phosphor parameters in white LEDs |
title_short |
The studies of power efficiency with different phosphor parameters in white LEDs |
title_full |
The studies of power efficiency with different phosphor parameters in white LEDs |
title_fullStr |
The studies of power efficiency with different phosphor parameters in white LEDs |
title_full_unstemmed |
The studies of power efficiency with different phosphor parameters in white LEDs |
title_sort |
studies of power efficiency with different phosphor parameters in white leds |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/04603491135103694114 |
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