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標題: 新型微投影機之LED光學引擎設計與模擬
Optical Design and Simulation for New Type LED Light Engine of Pico-Projector
作者: 楊慧玲
Yang, Heui-Ling
關鍵字: Non-imaging optics;非成像光學;Reflective LCD;Pico-Projector;LED light engine;反射式液晶;微型投影機;LED光學引擎
出版社: 精密工程學系所
引用: [1] W. S. Sun, K. D. Liu, J. W. Pan and C. L. Tien and M. S. Hsieh, “Laser expander design of highly efficient Blu-ray disc pick-up head,” Optics Express, 17, 2235-2246 (2009). [2] Edward H. Stupp, Matthew S. Brennesholtz, Projection Display, John Wiley & Sons Ltd, Baffin’s Lane, Chichester, West Sussex PO19 1UD, England, 1999 [3] 陳時偉,”數位光源處理投影系統之光學設計與光機模擬”,元智大學電機工程研究所碩士論文,民國91年。 [4] 方偉凱,”無光罩微影系統之解析度研究”,國立台灣科技大學機械工程系,民國99年。 [5] 顧鴻壽,光電平面面板顯示器基本概論,高立,2002。 [6] John Boyed, “Epson’s HTPS LCDs making home theater reality”, Seiko Epson Inc., 2004. [7] Ernst Lueder, “Liquid Crystal Display”, John Wiely & Sons, 2001. [8] E.H.Stupp and M.S.Brennesholtz, “Projection Display ”, John Wiley & Sons, New York, 1999. [9] Chris Chinnock, “Micro Display Overview”, SID, 2000. [10] S.T Wu, D.K Yang, “Reflective Liquid Crystal Display”, John Wiely & Sons, 2001. [11] 胡克龍,郭瓊文,”光微機電技術在平面影像之發展”,電子與材料雜誌,第十六期。 [12] Warren J. Smith, “Modern Optical Engineering”, McGraw-Hill, 3rd, 2000. [13], “Retardation Plates”, Polarization Component, p.12.23. [14],維基百科,三色刺激值。 [15] 郭銘豐,”導光板微結構之最佳化光學設計與模擬”,國立中興大學精密工程學系所碩士論文,民國96年。 [16] 施至柔,”背光模組光學模擬技術”,國立交通大學光電工程研究所碩士論文,民國87年。 [17] 張詩意,”高功率白光LED之混光實驗、模擬設計及模擬優化”,國立台灣科技大學電子工程系,民國95年。
傳統微型投影機之LED光學引擎需使用準直透鏡(Collimator lens)與接續透鏡(Relay lens)等元件,結構較複雜且成本也較高,本文以LCoS技術說明微型投影如何兼顧成本與效能,克服其光利用率、均勻性、鏡面數與尺寸等挑戰,而此類型的微型投影機之光學引擎包含利用陣列式的高功率LED、偏振分光鏡(Beam Splitter,PBS)、一顯像單元(Imager)以及一投影鏡頭組。藉著利用新型之背投式拋物面鏡結構並結合光學模擬,在體積較小(小於4 c.c.)、成本較低及結構簡化之優勢條件下成功達到光利用率15%以上及均勻性大於85%之目標。

Traditional pico-projectors's LED light engine needs collimator lens and relay lens etc, which has some drawbacks such as complicate structure and higher cost.
In this work, a new scheme that utilizes high power LEDS array and novel back emitting parabolic mirror module is proposed. The simulation results show that this configuration can has several merits as the following: smaller volume (less than 4 c.c.), lower cost, and simpler structure. It can successfully reach the needed goals that the light flux efficiency is higher than 15% and the uniformity is better than 85%.
其他識別: U0005-2207201115011400
Appears in Collections:精密工程研究所

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