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

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/79567

Title:	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
Authors:	林孝哲;Lin, Shiau-Je
Contributors:	照明與顯示科技研究所
Keywords:	輝度;雷射照明;Radiance;Laser lighting
Date:	2019-01-30
Issue Date:	2019-04-02 15:03:06 (UTC+8)
Publisher:	國立中央大學
Abstract:	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。;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.
Appears in Collections:	[Institute of Lighting and Display Science ] Electronic Thesis & Dissertation

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