散射粒子在螢光轉換白光LED中對光色特性之影響

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姓名

蕭愷緯(Kai-Wei Shiau) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

散射粒子在螢光轉換白光LED中對光色特性之影響
(Research of Photometric Characteristics of YAG pcW-LED with Scattering Particles)

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摘要(中)

本論文研究散射粒子TiO2摻入YAG螢光粉當中對光色特性之影響。以實驗室團隊既有之螢光粉粒子數與光通量關係函數為基礎，擬合螢光粉摻入散射粒子後光通量的變化關係，並找出關係函數中參數的變化趨勢，最終估算在實驗架構中能使光通量最大化時散射粒子的摻入濃度，以及固定色溫下摻入各濃度散射粒子的光通量表現。分析中利用擬合結果探討摻入散射粒子對光通量提升，螢光粉轉換效能及螢光粉減量之影響。

摘要(英)

In this thesis, we discuss the effect of TiO2 scattering particles on photometric characteristics of pcW-LED. Based on the discovered relation between the output power of pc-WLED and the phosphor particle numbers, we can estimate the maximal output power with any specific CCT of pcW-LED and their corresponding concentration of scattering particles needed. In addition, the Y/B conversion efficacy of phosphor and the reduction of the phosphor are also explored in depth.

關鍵字(中)

★ 散射粒子
★ 光通量
★ 螢光粉減量
★ 空間色溫均勻度

關鍵字(英)

論文目次

摘要 Ⅰ
Abstract Ⅱ
致謝 Ⅲ
目錄 Ⅴ
圖目錄 Ⅶ
表目錄 ?
第一章緒論 1
1.1 前言 1
1.2 LED發展 2
1.3 研究動機與目的 4
1.4 論文大綱 5
第二章基本原理 6
2.1 螢光粉發光原理 6
2.2 米氏散射 10
2.3 光視效能 12
第三章螢光粉摻入散射粒子之光色特性 14
3.1 散射分析與模擬 15
3.2 光色特性測量與擬合 26
3.2.1 光通量量測與函數擬合 28
3.2.2 頻譜分析 34
3.2.3 散射粒子對相關色溫及空間色偏影響 40
3.2.4 螢光粉參散射粒子之光通量預測 44
第四章螢光粉參雜散射粒子之效率分析 51
4.1 定YAG粒子數之轉換效率、色溫及光通量變化分析 51
4.2 定相關色溫之螢光粉減量及相對光通量比例分析 56
第五章結論 60
參考文獻 63
中英文名詞對照表 69

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指導教授

楊宗勳、孫慶成(Tsung-Hsun Yang Ching-Cherng Sun)

審核日期

2017-8-24

推文