| 研究生: |
黃靜宜 Huang, Ching-Yi |
|---|---|
| 論文名稱: |
圖形化電極製作具有線性偏振無關特性之液晶透鏡研究 Study of patterned electrodes to realize liquid crystal lenses with linearly polarized independent characteristics |
| 指導教授: | 許家榮 |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 光電科學與工程研究所 Institute of Electro-Optical Science and Engineering |
| 論文出版年: | 2010 |
| 畢業學年度: | 98 |
| 語文別: | 中文 |
| 論文頁數: | 93 |
| 中文關鍵詞: | 圖形化電極 、線性偏振 、液晶透鏡 |
| 外文關鍵詞: | patterned electrodes, linearly polarized, liquid crystal lenses |
| 相關次數: | 點閱:96 下載:2 |
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本論文主要目的為用圖形化電極製作具有與線性偏振無關特性之液晶透鏡研究。圖形化電極液晶透鏡乃是利用圖形化電極在液晶層中產生非均勻對稱性電場,使得液晶分子方向分佈形成適當之折射係數梯度條件,當入射光進入液晶透鏡後,由於不同位置的光程差而達到匯聚或發散光的能力。本實驗使用三種圖形化電極製作液晶透鏡,分別為圓孔型液晶透鏡、點電極液晶透鏡和blu-ray液晶透鏡,此三種透鏡將使用不同液晶種類和配向處理,觀察透鏡在不同電壓下的光學特性,如干涉條紋圖與焦距量測。
由上述三種透鏡的實驗結果證明,可以利用液晶配合配向處理達到圖形化電極製作具有與線性偏振無關特性之液晶透鏡。
In this thesis, we mainly study using patterned electrodes to realize liquid crystal lenses with linearly polarized independent characteristics. The patterned electrodes provide a symmetric non-uniform electrical field, which drives the director orientation of spatial liquid crystals in order that suitable distribution of gradient refractive indices can be achieved in the cells. When an incident light beam passes through the cell, light beam can be converged or divergent according to the conditions of optical path difference generated by refractive index distribution. In this experiment, we use three patterned electrodes to manufacture liquid crystal lenses, including circular hole-pattern liquid crystal lens, point-pattern liquid crystal lens and blu-ray-pattern liquid crystal lens. Observe optical performances of these lenses with distinct liquid crystal and alignment in different voltages, such as interference stripes figure and focal length measurement.
Experimental results demonstrate that patterned electrodes to realize liquid crystal lenses with linearly polarized independent characteristics can be achieved by using distinct liquid crystal and alignment.
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