博碩士論文 972212001 完整後設資料紀錄

DC 欄位	值	語言
DC.contributor	光電科學與工程學系	zh_TW
DC.creator	楊双豪	zh_TW
DC.creator	Shuang-hao Yang	en_US
dc.date.accessioned	2010-7-29T07:39:07Z
dc.date.available	2010-7-29T07:39:07Z
dc.date.issued	2010
dc.identifier.uri	http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=972212001
dc.contributor.department	光電科學與工程學系	zh_TW
DC.description	國立中央大學	zh_TW
DC.description	National Central University	en_US
dc.description.abstract	本研究中，我們利用具有表面微結構之薄膜型氮化鎵LED搭配外腔式光源機構，設計出高指向性之光源機構模型。首先，針對氮化鎵LED的幾何結構以及光學特性進行量測，並經由此實驗數據建立出相似度高達99.8%的LED光學模型。接著利用此模型設計一外腔式光源機構，使LED的光線發散角得以從±90°縮小至±30°以內，並計算出光耦合效率、能量提升比例以及散角分佈。最後，我們將此光源機構的實驗數據與模擬結果一一進行比較與探討，進而得到一高精準度之外腔式光源機構模型，而此模型也有利於之後進一步優化的設計。	zh_TW
dc.description.abstract	In this thesis, we incorporate an external cavity with the surface texture for ThinGaN LEDs to obtain a high-directional light source. First of all, we measure the geometric structure on the top surface of ThinGaN LEDs and the characteristic of optical parameters. According to the information, we build up a precise optical model of ThinGaN LED to design an external cavity with special light cone of 30°, which is different from 90° of general LEDs. The output coupling efficiency, enhancement ratio, and spatial distribution are analyzed. Finally, we compare the experiment results with the simulation, and the characteristic of the new light source is discussed.	en_US
DC.subject	光展量	zh_TW
DC.subject	耦合效率	zh_TW
DC.subject	光子回收	zh_TW
DC.subject	薄膜型氮化鎵LED	zh_TW
DC.subject	表面結構	zh_TW
DC.subject	Étendue	en_US
DC.subject	Coupling Efficiency	en_US
DC.subject	Photon Recycle	en_US
DC.subject	ThinGaN LED	en_US
DC.subject	Surface Texture	en_US
DC.title	高指向性LED外腔式光源機構之研究	zh_TW
dc.language.iso	zh-TW	zh-TW
DC.title	Study of High-Directional LED with External Cavity	en_US
DC.type	博碩士論文	zh_TW
DC.type	thesis	en_US
DC.publisher	National Central University	en_US