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研究生:蔡威弘
研究生(外文):Tsay, Wei-Hung
論文名稱:電控變焦液晶透鏡之特性探討
論文名稱(外文):A Study of Electrically Tunable-Focusing Liquid Crystal Lenses
指導教授:林怡欣林怡欣引用關係
指導教授(外文):Lin, Yi-Hsin
學位類別:碩士
校院名稱:國立交通大學
系所名稱:理學院碩士在職專班應用科技學程
學門:自然科學學門
學類:其他自然科學學類
論文種類:學術論文
論文出版年:2010
畢業學年度:98
語文別:中文
論文頁數:60
中文關鍵詞:液晶透鏡電控變焦溫度效應
外文關鍵詞:Liquid Crystal LensElectrically Tunable-FocusingTemperature Effect
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我們探討電控變焦液晶透鏡的電光特性,其電控變焦的原理為利用一個從邊緣到中央漸弱的不均勻電場,使液晶旋轉排列成梯度分佈,產生空間中拋物線的折射率分佈,不同的電壓造成不同的拋物線曲度,達到透鏡變焦的效果。本論文首先介紹液晶材料的物理參數,接下來透過液晶透鏡的文獻,瞭解液晶透鏡的基本分類與圓孔電極液晶透鏡的歷史演進,並選擇最基礎的圓孔電極結構之液晶透鏡進行電控焦距、反應時間與溫度效應的探討,尤其是溫度效應在文獻上討論甚少。由實驗結果得知在25℃至60℃之間,可以利用溫度來改善反應時間,且不影響變焦範圍。
We study the electro-optic properties of electrically tunable-focusing liquid crystal (LC) lenses. A spatially inhomogeneous electric field which decreases gradually from the edge to the center makes the gradient-rotation distribution of LC molecules to produce parabolic distribution of refractive indices. The principle of electrically tunable-focusing is that the curvature of the distribution of refractive indices can be changed by applied voltages. In this thesis, we introduce the physical parameters of LC materials and survey literatures of LC lenses. Then, we select a LC lens with hole-patterned electrode to study the focal length, response time, and temperature effect of the LC lens. From the experimental results, we can improve the response time by increasing temperature and the focusing properties remain similiar between the temperature of 20℃ and 60℃.
第1章 簡介 1
1.1 液晶簡介[1] 1
1.1.1 液晶種類與分子結構[2-3] 1
1.1.2 液晶之物性 3
1.2 液晶透鏡簡介 6
1.2.1 液晶透鏡的種類 7
1.2.2 圓孔電極之液晶透鏡的歷史演進 12
1.3 研究動機 16
第2章 理論與模擬 18
2.1 液晶分子在電場下的轉動 18
2.2 焦距計算 22
2.3 反應時間 26
2.4 溫度效應[32, 38-39] 28
2.5 液晶透鏡模擬與分析 31
2.5.1 2DimMOS模擬 31
2.5.2 計算與分析 33
第3章 實驗架設與量測 36
3.1 樣品準備 36
3.2 實驗架設與量測 37
第4章 實驗結果與分析討論 40
4.1 折射率分佈 40
4.2 電控焦距 43
4.2.1 不同孔徑之液晶透鏡比較 43
4.2.2 不同液晶層厚度之液晶透鏡比較 45
4.3 反應時間 46
4.3.1 實驗結果 46
4.3.2 分析與討論 47
4.4 溫度效應 50
4.4.1 溫度對最短焦距的影響 50
4.4.2 溫度對反應時間的影響 51
4.4.3 結果與討論 52
第5章 結論與未來展望 54
參考文獻 57

[1] 賴耿陽,液晶製法與應用,台南,民國九十年六月。
[2] 紀國鐘,鄭晃忠,液晶顯示器技術手冊,二版,新竹,民國九十二年十一月。
[3] 松本正一,角田正良,液晶之基礎與應用,國立編譯館出版,1996。
[4] Eugene Hecht, Optics, 4th Edition, Addison Wesley, San Francisco, 2002.
[5] Ericb W. Marcband, Gradient Index Optics, New York.
[6] Susumu Sato, “Liquid-Crystal Lens-Cells with Variable Focal Length”, Jpn. J. Appl. Phys. 18, 1679 (1979).
[7] M. Hain, R. Gloeckner, S. Bhattacharya, D. Dias, S. Stankovic, T. Tschudi, “Fast Switching Liquid Crystal Lenses for a Dual Focus Digital Versatile Disc Pickup”, Optics Communications 188, 291 (2001).
[8] Suk-Ho Chung, Seong-Wook Choi, Young-Joo Kim, Han-Jin Ahn, and Hong-Koo Baik, “Liquid Crystal Lens for Compensation of Spherical Aberration in Multilayer Optical Data Storage”, Jpn. J. Appl. Phys. 45, 1152 (2006).
[9] A. F. Naumov and M. Yu. Loktev, “Liquid-Crystal Adaptive Lenses with Modal Control”, Optics Letters 23, 992 (1998).
[10] A. F. Naumov and G. D. Love, “Control Optimization of Spherical Modal Liquid Crystal Lenses”, Optics Express 4, 344 (1999).
[11] Mao Ye and Susumu Sato, “Optical Properties of Liquid Crystal Lens of Any Size”, Jpn. J. Appl. Phys. 41, L571 (2002).
[12] Mao Ye and Susumu Sato, “Liquid Crystal Lens with Focus Movable along and off Axis”, Optics Communications, 225, 277 (2003).
[13] Mao Ye and Susumu Sato, “Liquid Crystal Lens with Insulator Layers for Focusing Light Waves of Arbitrary Polarizations”, Jpn. J. Appl. Phys. 42, 6439 (2003).
[14] Mao Ye, Bin Wang and Susumu Sato, “Liquid-Crystal Lens with a Focal Length that is Variable in a Wide Range”, Applied Optics, 43, 6407 (2004).
[15] Hongwen Ren, Yun-Hsing Fan, Sebastian Gauza, and Shin-Tson Wu, “Tunable-Focus Flat Liquid Crystal Spherical Lens”, Applied Physics Letters, 84, 4789 (2004).
[16] Bin Wang, Mao Ye, Michinori Honma, Toshiaki Nose, and Susumu Sato, “Liquid Crystal Lens with Spherical Electrode”, Jpn. J. Appl. Phys. 41, L1232 (2002).
[17] Y. J. Liu, X. W. Sun, and Q. Wang, “A Focus-Switchable Lens Made of Polymer-Liquid Crystal Composite”, Journal of Crystal Growth 288, 192 (2006).
[18] Hongwen Ren, Yun-Hsing Fan, and Shih-Tson Wu, “Liquid-Crystal Microlens Arrays Using Patterned Polymer Networks”, Optics Letters 29, 1608 (2004).
[19] Hongwen Ren, Yun-Hsing Fan, and Yi-Hsin Lin, Shin-Tson Wu, “Tunable-Focus Microlens Arrays Using Nanosized Polymer-Dispersed Liquid Crystal Droplets”, Optics Communications 247, 101 (2005).
[20] Hongwen Ren and Shin-Tson wu, “Tunable Electronic Lens Using a Gradient Polymer Network Liquid Crystal”, Applied Physics Letters, 82, 22 (2003).
[21] Mao Ye, Bin Wang, and Susumu Sato, ”Polarization-Independent Liquid Crystal Lens with Four Liquid Crystal Layers”, IEEE Photonics Technology Letters 18, 505 (2006).
[22] M. Ye, M. Noguchi, B. Wang and S. Sato, “Zoom Lens System without Moving Elements Realised Using Liquid Crystal Lenses”, Electronics Letters, 45, 12 (2009).
[23] Joachim Knittel, Hartmut Richter, Mathias Hain, Somakanthan Somalingam, Theo Tschudi, “A Temperature Controlled Liquid Crystal Lens for Spherical Aberration Compensation”, Microsyst Technol 13, 161 (2007).
[24] Mao Ye, Bin Wang, Takeshi Takahashi and Susumu Sato, “Properties of Variable-Focus Liquid Crystal Lens and Its Application in Focusing System”, Optical Review 14, 173 (2007).
[25] Mao Ye, Bin Wang, Marenori Kawamura and Susumu Sato, “Image Formation Using Liquid Crystal Lens”, Jpn. J. Appl. Phys. 46, 6776 (2007).
[26] Marenori Kawamura, Mao Ye and Susumu Sato, “Optical Trapping and Manipulation System Using Liquid-Crystal Lens with Focusing and Deflection Properties”, Jpn. J. Appl. Phys. 44, 6098 (2005).
[27] Philip J. W. Hands, Svetlana A. Tatarkova, Andrew K. Kirby and Gordon D. Love, “Modal Liquid Crystal Devices in Optical Tweezing: 3D Control and Oscillating Potential Wells”, Optics Express 14, 4525 (2006).
[28] Marenori Kawamura, Hiroyuki Umeda and Susumu Sato, “Optical Trap for Manipulating Plural Particles by Using a Liquid Crystal Device”, Mol. Cryst. Liq. Cryst. 510, 191 (2009).
[29] Shiro Suyama, Munekazu Date and Hideaki Takada, “Three-Dimensional Display System with Dual-Frequency Liquid-Crystal Varifocal Lens”, Jpn. J. Appl. Phys. 39, 480 (2000).
[30] Maarten Sluijter, Angie Herzog, Dick K. G. De Boer, Marcel P. C. M. Krijn and H. Paul Urbach, ”Ray-Tracing Simulations of Liquid-Crystal Gradient-Index Lenses for Three-Dimensional Displays”, J. Opt. Soc. Am. B 26, 2035 (2009).
[31] 戴亞翔,TFT-LCD面板的驅動與設計,初版,五南圖書,台北,2006年4。
[32] Iam-Choon Khoo and Shin-Tson, Optics and Nonlinear Optics of Liquid Crystals, World Scientific, Singapore, 1993.
[33] Pochi Ye and Claire Gu, Optics of Liquid Crystal Displays, Wiley Interscience, Canada, 1999.
[34] Stephen T. Kowel, Dennis S. Cleverly, and Philipp G. Kornreich, “Focusing by Electrical Modulation of Refraction in a Liquid Crystal Cell”, Applied Optics, 23, 278 (1984).
[35] Joseph W. Goodman, Introduction to Fourier Optics, 2nd Edition, McGraw-Hill, Singapore, 1996.
[36] Hongwen Ren, David W. Fox, Benjamin Wu, and Shin-Tson Wu, “Liquid Crystal Lens with Large Focal Length Tunability and Low Operating Voltage,” Optics Express, 15, 11328 (2007).
[37] Mao Ye and Susumu Sato, “New Method of Voltage Application for Improving Response Time of a Liquid Crystal Lens”, Mol. Cryst. Liq. Cryst. 433, 229 (2005).
[38] Deng-Ke Yang and Shin-Tson Wu, Fundamentals of Liquid Crystal Devices, John Wiley & Sons, Ltd, England, 2006.
[39] Shin-Tson Wu, Deng-Ke Yang, Reflective Liquid Crystal Displays, John Wiley & Sons, Ltd, England, 2001.
[40] Naftaly Menn, Practical Optics, Elsevier Academic Press, USA, 2004.

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