將LED光源與積分柱結合之攜帶式DLP投影機光路設計

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姓名

何柏彥(Po-Yen Ho) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

將LED光源與積分柱結合之攜帶式DLP投影機光路設計

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摘要(中)

我們提出以LED 為光源，且將LED 與積分柱(Rod)結合的攜帶式
DLP 投影機，尺寸大小為78.9 mm×71.5 mm×20 mm。LED 直接封裝
在積分柱入口端，使得積分柱不僅為均勻化光線的元件，亦是光源。
再搭配兩片聚光透鏡成為攜帶式DLP 投影機的照明系統。此架構不
僅將照明系統長度縮減到只剩17.21 mm，也縮減光源的發光角度。
而積分柱的外型是呈現喇叭狀，會如此設計的目的在於一方面是希望
能夠有效的縮減光線出光角度，另一方面是盼能遵循光展量守恆，避
免光能量在系統各元件上造成耗損，盡可能將耗損能降至最低。目標
是攜帶式DLP投影機能夠成為高效能高均勻度的投影機。目標預估，
均勻度(ANSI)約70%，光效率約37.23%。模擬結果，均勻度(ANSI)
約68%，光效率大約15.3%。

摘要(英)

We present an LED for light source, and the mobile DLP projector combine the LED with rod and that size of 78.9 mm×71.5 mm×20 mm.The LED is directly packaged in the rod entrance side, the rod is not only the homogenizer, but also a light source. And addition to two condensers lens becomes light system of the mobile DLP projector. This architecture not only allowed for a reduction in the
length of light system in 17.21 mm,but also reduced the angle of rays emitted from the LED with the rod.The rod
is trumpet-shape in the form, the purpose of the design
has hopedof reduced the angle of rays emitted from the
LED, and follow conservation of throughput. To avoid
energy was wasted from components, and reduce as low as possible. We goal becomes high performance and high uniformity mobile DLP projector. Our target had made projection of ANSI of 70% and efficiency of 37.23%. The simulation resulted of ANSI of 68% and efficiency of 15.3%.

關鍵字(中)

★ 投影機
★ 積分柱
★ 全反射稜鏡

關鍵字(英)

★ Projector
★ Rod
★ TIR

論文目次

論文摘要...............................................i
Abstact...................................................ii
誌謝辭...............................................iii
目錄....................................................iv
圖目錄.................................................vii
表目錄.................................................xi
符號說明............................................. xiii
第一章緒論.............................................1
1-1 前言.............................................1
1-2 研究動機.........................................4
1-3 論文架構.........................................5
第二章基本原理與系統架構...............................7
2-1 基本原理與系統架構簡介...........................7
2-2 系統架構主要元件.................................8
2-2-1 照明系統光學元件..............................8
2-2-2 光閥系統光學元件.............................11
2-2-3 成像系統光學元件.............................18
第三章攜帶式投影機系統之非成像系統光學設計............21
3-1 導論............................................21
3-2 光展量(throughput)的定義與計算..................21
3-2-1 光展量(throughput)的定義.....................21
3-2-2 光展量(throughput)的計算.....................24
3-3 非成像系統設計說明.............................27
3-3-1 照明系統初階設計說明.........................28
3-2-2 LED 光源....................................29
3-3-3 RTIR Prism...................................33
第四章攜帶式投影機系統之成像系統光學設計..............37
4-1 導論............................................37
4-2 鏡頭設計規格....................................37
4-3 設計流程........................................39
4-4 設計結果........................................43
4-4-1 目標值與設計值之比較.........................43
4-4-2 鏡頭配置圖...................................43
4-4-3 成像性能評價.................................44
4-5 定心係數........................................49
4-6 公差介紹........................................51
4-6-1 中心公差( Centered Tolerance ) ................51
4-6-2 偏心公差( Decentered Tolerance ) ..............54
4-7 公差分析........................................57
4-7-1 公差範圍.....................................57
4-7-2 公差分析.....................................58
第五章攜帶式投影機系統之模擬及分析....................64
5-1 導論............................................64
5-2 初階設計系統光效率估算..........................64
5-3 LightTools 模擬結果分析..........................64
5-3-1 光均勻度分析.................................64
5-3-2 光效率分析...................................72
5-4 系統光效率估算..................................74
第六章結論及未來展望..................................76
6-1 結論............................................76
6-2 未來展望........................................78
參考資料.................................................79

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指導教授

孫文信(Wen-Shing Sun)

審核日期

2013-1-28

推文