博碩士論文 93226043 詳細資訊




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姓名 林維屏(Wei-Ping Lin)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 LED光源新式應用之研究
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摘要(中) 近年來,由於材料及製造技術的進步,使得發光二極體(LED)的亮度及發光顏色逐漸增加並應用於照明上,由於LED的光譜分佈比較狹窄,可以利用多顆不同半波寬的LED來組合出想要的光源。本文使用少數顆LED加上一片固定穿透率的光學濾光片,發展出可調式自然光光源,在此光源可以模擬出符合CIE所制定的標準日光,可調整的色溫範圍為4,000K到10,000K,並且在常見色溫5,000K, 6,500, 以及7,500K擁有很好的演色性(CRI≧97)。
  對於使用LED組合出光譜可調式光源的應用,本研究將其利用在新發明之可變色溫可變色度儀上。利用光譜可調式光源在光譜可變化的特性,加上一組光功率計,即可用來測量各種光源照明下物體的色度值,其量測誤差方均根值約在千分之三以內,色度值精確度可達光譜式色度儀。
摘要(英) Recently, advance in materials and manufacture has resulted in the commercial availability of light emitting diode (LED) with high luminance and wide spans of the dominant wavelengths within the entire visible spectrum. Because of the narrow spectral distribution, LEDs are being further evaluated as one of the possible standard light source. In this work, an innovative tunable daylight simulator is developed, which mainly consists of only few LEDs plus one special designed color filter with fixed transmission spectrum. This tunable daylight simulator dose simulate daylight of correlated color temperature (CCT) ranged widely from 4,000K to 10,000K with very good color rendition (CRI≧97) in spite of only the cases of CCT 5,000K, 6,500K, and 7,500K are taken into consideration during the design stage.
The application of spectral tunable light source for using LEDs, this research utilizes it on the innovative colorimeter of tunable CCT. This colorimeter consists of different dominant wavelength LEDs and a power meter can measure chromaticity value of object that various kinds of light source illuminated. The root mean square value of error is less than 0.003. The accuracy of chromaticity value can reach spectral colorimeter.
關鍵字(中) ★ 光譜可調式光源
★ 混光優化
★ 發光二極體
關鍵字(英)
論文目次 第一章 序論............................................................................................1
1.1 研究背景...................................................................................1
1.2 研究動機...................................................................................3
1.3 論文內容安排...........................................................................5
第二章 色彩科學概論............................................................................6
2.1 可見光.......................................................................................6
2.2 CIE 色彩空間............................................................................9
2.3 混色原理.................................................................................13
2.4 均勻色彩空間.........................................................................15
2.5 色溫和相關色溫.....................................................................17
2.6 CIE 標準光..............................................................................19
第三章 可調式自然日光光源之設計..................................................21
3.1 模擬設計.................................................................................23
3.2 模擬結果.................................................................................25
3.3 討論與分析.............................................................................28
第四章 可變色溫色度儀......................................................................31
4.1 模擬設計.................................................................................34
4.2 模擬結果.................................................................................36
4.3 討論與分析.............................................................................38
第五章 結論..........................................................................................43
參考文獻...................................................................................................45
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指導教授 楊宗勳(Tsung-Hsun Yang) 審核日期 2006-7-21
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