白光LED發光光譜之最佳化研究

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姓名

周慧岳(Hui-Yueh Chou) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

白光LED發光光譜之最佳化研究
(Study of Optimization on Emission Spectra of White LED Light Sources)

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至系統瀏覽論文 (2027-11-2以後開放)

摘要(中)

本論文致力於針對YAG-LED擬合出的精確白光光譜模型，透過參數的最佳化，進而定義出新的數學模型來建立新的標準光源。透過CRI、TM30之?? (Color Fidelity Index)及?g (Color Gamut Score)指標為依據，優化出YAG-LED各個色溫下最佳白光光譜。透過實驗室所收集到的數據的統計結果，訂定出各個參數的範圍區間，在2,500K到25,000K的範圍內，在每一各別特定色溫下，先利用全域的最佳化演算法，快速搜尋接近系統的最佳化參數，再利用局部最佳化演算法進一步精確到最佳化的結果。同時本文也藉由不同的物理與參數範圍限制，以期使最佳化的結果能夠由實際產品之性能調整，得到理想性的效能呈現。

摘要(英)

In this thesis, YAG-LED spectrums with optimal chromatic parameters has been obtained for various correlated color temperature by using three indices were CRI, TM30-????, and TM30-???? respectively. We found that the YAG-LED can be represented by eight parameters, by optimizing these parameters in using Genetic Algorithm and Levenberg-Marquardt Algorithm, the best YAG-LED spectrum for various CCT is obtained by the global and local optimization algorithms.

關鍵字(中)

★ 白光
★ 光譜優化
★ 演色性優化
★ 白光最佳化
★ 演色性最佳化

關鍵字(英)

★ TM30-15
★ CRI
★ YAG-LED

論文目次

目錄
中文摘要 i
Abstract ii
致謝 iii
圖目錄 vii
表目錄 xii
特殊符號目錄 xiii
第一章緒論 1
1-1 研究背景 1
1-2 A光源 4
1-3 B、C、E光源 4
1-4 D光源 5
1-5 F光源 8
1-6 研究目的與動機 8
第二章基礎理論 10
2-1 色彩學發展 10
2-1-1 CIE 1931 XYZ 色彩空間 11
2-1-2 CIE 1960&1976 UCS色彩空間 13
2-1-3 黑體輻射與相關色溫 14
2-1-4 演色性(Color Rendering Index) 16
2-1-5 TM30-15 18
2-2 LED 結構 23
2-2-1 螢光粉與藍光LED頻譜 25
2-3 混色公式 28
第三章光譜特性分析 30
3-1 藍光光譜 32
3-2 螢光粉輻射光譜 35
第四章最佳演色性白光譜 40
4-1 全域優化 41
4-2 優化參數特性以及限制 43
4-3 不同基因演化世代下優化結果比較 46
4-4 藍光左右半高寬固定與否優化結果比較 51
4-5 局部優化 55
4-6 各參數CRI數學模組建立 60
第五章最佳TM30白光光譜 68
5-1 R_f優化結果 68
5-2 R_g優化結果 72
5-3 〖R_g〗^2+〖R_f〗^2優化結果 76
5-4 TM30優化結果與各標準白光光源比較 81
5-4-1 優化結果與A光源比較 82
5-4-2 優化結果與D50與D65光源比較 84
5-5 優化結果之數學模組 89
第六章結論 98
參考文獻 100
中英文名詞對照表 106

參考文獻

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指導教授

楊宗勳(Tsung-Hsun Yang)

審核日期

2022-11-3

推文