使用散射材料與金屬反射面鏡增強光源輝度

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姓名

林孝哲(Shiau-Je Lin) 查詢紙本館藏

畢業系所

照明與顯示科技研究所

論文名稱

使用散射材料與金屬反射面鏡增強光源輝度
(Using scattering material and mirror with metal coating to enhance the brightness of light source)

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摘要(中)

本研究希望使用反射腔體、散射材料、與雷射光源製作出具有小發光面積、小輸出立體角與高輸出光功率特性的光源。提出數學模型能夠模擬光子在反射腔體內的傳遞過程。在實驗上本研究使用連續輸出波藍光雷射與漸變式折射率透鏡製作出小Beam spot的準直光雷射，使用小Beam spot的連續輸出波藍光雷射入射Ce:YAG單晶與二氧化鈦矽膠混合物製作出小發光面積的白光光源。使用拋物面鏡、平面鏡與透鏡的組合製作出兩種反射腔體架構，架構一為拋物面鏡與平面鏡的組合，架構二在架構一的基礎上再加上透鏡與平面鏡。分別在在單波長光源與白光光源的兩種情況下，量測所得到的輻射率增益值。在單波長光源的情況下，使用光功率計量測可以得到架構一與架構二可以分別得到138%與304%的光源輻射率增益值；使用相機與ImageJ軟體進行分析，在單波長光源的情況下，架構一與架構二可以分別得到132%與266%的光源輻射率增益值；在白光光源的情況下，架構一與架構二可以分別得到119%與249%的光源輻射率增益值。

摘要(英)

In this thesis, two reflectivity cavities with ability of reduce output solid angle and photon recycle were made by parabolid mirror, lens and flat mirror. Setup1 was made by paraboloid mirror and flat mirror. Setup2 was made by parabolid mirror, aspherical lens and flat mirror. Using single wavelength light source and measuring output radiance by photonmeter, the radiance of light source could be enhanced 138%(Setup 1) and 304%(Setup 2). Shooting a picture of single wavelength and white light light source and using ImageJ to analyze the photo, the radiance of single wavelength light source could be enhanced 132%(Setup 1) and 266% (Setup 2). The radiance of white light source could be enhanced 119%(Setup 1) and 249%(Setup 2).
Attempt of producing a high radiance light source and a reflectivity cavity with high radiance enhancement. The imperfection of reflectivity cavity caused lower radiance and radiance enhancement. To increase the radiance of light source and the radiance enhancement of reflectivity cavity will be the future work. Improving the reflectance of reflectivity cavity to make a reflectivity cavity with high radiance enhancement. Inserting more laser diodes into reflectivity cavity to make a high radiance light source.

關鍵字(中)

★ 輝度
★ 雷射照明

關鍵字(英)

★ Radiance
★ Laser lighting

論文目次

中文摘要 i
Abstract iii
致謝 iv
圖目錄 vii
表目錄 xii
第一章序論 1
1-1前言 1
1-2動機 6
1-3論文架構 7
1-4論文符號解釋 7
第二章理論 11
2-1輻射率與輝度定理 (Brightness theorem) 11
2-2漸變式折射率透鏡（Graded-Index Lens, GRIN lens） 14
2-3 散射材料及螢光粉 17
2-3-1 散射材料 17
2-3-2釔鋁石榴石(Y3Al5O12)參雜鈰(Ce:YAG) 18
2-4數學模型建立 24
第三章數學模型討論 36
3-1 固定反射腔體架構，改使用不同散射光場角度分佈的光源 37
3-2 固定使用散射光場角度分佈的光源，改變反射腔體架構 50
第四章實驗架構 52
4-1 實驗架構 52
4-1-1雷射光源架設 53
4-1-2反射腔體 54
4-1-3散射材料與螢光片 60
4-2 實驗流程 62
第五章實驗結果 66
5-1自製散射材料的散射光場角度分佈函數 66
5-2 反射腔體表現 73
5-3 白光絕對光譜 80
第六章結論與未來展望 84
6.1結論 84
6.2未來展望 85
參考文獻 86

參考文獻

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指導教授

鍾德元(Te-yuan Chung)

審核日期

2019-1-30

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