臺灣博碩士論文加值系統

發光二極體(Light Emitting Diode,LED)燈具取代傳統燈源是世界的潮流，在水下照明領域亦是。傳統水下燈源是以輻射狀的發光角度傳遞，因為輻射狀光源在水下的散射，各方向光強度一致，導致散射被涵蓋在衰減係數中一併討論，並無出光角度之問題。而LED光源具有高指向性的特性，使得光在水中的光場會因為散射而改變，造成在分析水下照明時，不能引用傳統燈具既定的理論去探討。因此本文利用平均餘弦方法分析LED光束在水下的散射模式，修正傳統輻射狀光源的分析方法，並且簡化複雜的隨機散射計算，來表現各方向之光照強度，接著將LED光源模組量化，結合水中LED光束傳遞模式，分析不同的燈源排列、光照強度及配光曲線等參數，LED光源模組在水中光照強度的分布。以此LED光束在水中傳遞之分析方法，所獲得的最佳設計參數可作為後續設計高亮度LED水下燈之基礎。最後由實驗結果顯示，使用水下LED光源模組在各方向上的光照強度和模擬的誤差量約在10%以內，由此證明使用平均餘弦分析水下LED燈具是具可行性。

The LED lamps replaced the traditional light source is a global trend. It is also in the underwater. Traditional light source’s emitting angle is like radial, so the light intensity in the every direction is same. It lead to scattering coefficient and emitting angle became not important in the calculation. However, the LED light source has the characteristical of high directivity that will change the light field by scattering. Because of the characteristical, we can not analyse and apply the LED in the underwater illumination by using the way of analysing the traditional light source. This research analytically calculate the light scattering models in underwater by average cosine and revise the traditional analysis about light transmitted in underwater and simplify the complex random scattering to express the light intensity in every direction. Then quantify the LED light source and combined the transmitting model. By using this way, we can select the best light intensity curves and power and array. Finally, experimental results show the deviation of the simulation is no more than 10%.

致謝 I
摘要 II
Abstract III
目錄 IV
圖目錄 VII
表目錄 X
第一章 緒論 1
1-1 研究背景與目的 1
1-2 研究架構 4
第二章 文獻回顧 6
2-1 水下光學理論 6
2-2 LED應用設計 9
第三章 理論簡介與模擬分析 11
3-1 水下光學基本原理 11
3-1-1 固有光學性質介紹 12
3-1-2 其他光學性質介紹 15
3-2 平均餘弦分析水下光傳遞 17
3-2-1 水下光傳遞散射行為 18
3-2-2 水下光傳遞散射機率分析 22
3-2-3 水下光傳遞總衰減係數 25
3-3 LED光源參數分析 26
3-3-1 LED配光曲線 26
3-3-2 LED陣列光強度之計算 29
3-3-3 LED陣列照度計算 30
3-4 LED燈源於水下之模擬 32
3-4-1 單顆LED模擬分析 33
3-4-2 陣列LED模擬分析 39
3-4-3 陣列LED近遠場分析 46
3-4-4 LED水下燈具設計 48
第四章 實驗結果 49
4-1 實驗設備建置 51
4-2 HID水下燈量測 52
4-3 LED水下燈量測 55
第五章 結論與未來展望 59
5-1 結論 59
5-2 未來展望 60
參考文獻 61
作者簡介 65

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