本論文主要探討利用共平面圓環形電極於圓孔型電極液晶透鏡之性能改善研究，包括操作電壓、電壓頻率，以及共平面圓環形電極對透鏡性能影響之機制。
圓孔型電極液晶透鏡乃是利用圓孔型電極在液晶層中產生非均勻對性電場，使得液晶分子方向形成適當的折射率係數梯度分佈，當入射光進入液晶透鏡後，波前受到折射率係數梯度分佈的調制而達到匯聚或發散光束的能力。
利用簡單的製程在圓孔型電極區域加入一個共平面同心圓環電極達到不同於單一圓孔型電極的電場分佈，透過電阻電容等效電路模型比對兩者差異所對液晶層液晶分子方向分佈的影響與其對應之透鏡能力。
實驗發現以孔徑1 mm的圓孔型電極搭配外半徑180 μm (線寬20 μm)的圓環電極所製作之液晶透鏡，明顯地改善圓孔型電極液晶透鏡能力，包括最短焦距的操作電壓、成像的品質、調制轉換函數(Modulation Transfer Function ，MTF) 的曲線。

A proposed type of hole-patterned electrode liquid crystal lenses (HPELCLs) with an additional coplanar inner ring electrode (CIRE) was investigated. As a result, the CIRE- HPELCLs show better electro-optical performance than that in the HPELCLs when operating with 100 Hz electric frequencies In order to investigate how the CIRE do effects on lens performance, the electric circuit model was used to analyze in the LC lenses. In addition, the CIRE-HPELCL arrays was also investigated. According the electric circuit model to change the thickness of NOA65 dielectic film, it is also consistent as well as the comparisons in single LC lens types.

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