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研究生： 曹維倫
Wei-Lun Cao
論文名稱： 以串聯型-扭曲向列型液晶為基礎 製作偏振相機系統
Inexpensive Tandem-2ϕ-TNLC based polarization camera system
指導教授： 鍾德元
Te-Yuan Chung
口試委員:
學位類別： 碩士
Master
系所名稱： 理學院 - 光電科學與工程學系
Department of Optics and Photonics
論文出版年： 2021
畢業學年度： 109
語文別： 中文
論文頁數： 97
中文關鍵詞： 偏振 、扭曲向列型液晶 、偏振旋轉器 、偏振相機
外文關鍵詞： Polarization, Twisted nematic liquid crystal, Polarization rotator, Polarization camera
相關次數： 點閱：13  下載：0 
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    • 本研究藉由模擬及檢測分析來製作出液晶偏振旋轉器(Tandem-2ϕ-TNLC)，此液晶偏振旋轉器理想上能使入射光的偏振角度旋轉到期待的偏振角度上並且偏振態維持不變。
    接著以兩組偏振旋轉器(Tandem-90˚-TNLC及Tandem-45˚-TNLC)外加一片線性偏振片製作出偏振相機所需之電控偏振光學系統，以手機之聲源訊號驅動並切換液晶偏振旋轉器的四種偏振操作狀態，並以手機上的相機透過此電控偏振光學系統，依序紀錄四張偏振照片，進而以四張偏振照片計算得到偏振影像之偏振角度與偏振度資訊。

    In this study, a liquid crystal polarization rotator (Tandem-2ϕ-TNLC) was produced by simulation and detection analysis, this liquid crystal polarization rotator can rotate the polarization angle of the incident light to the desired polarization angle and maintain the polarization state unchanged.
    Then two sets of polarization rotators (Tandem-90˚-TNLC and Tandem-45˚-TNLC) plus a linear polarizer are used to make the electronically controlled polarization optical system required by the polarization camera, which is drive and switch the four polarization operating states of the liquid crystal polarization rotator with the sound source signal of the mobile phone, and use the camera on the mobile phone to record the four polarization photos in sequence through the electronically controlled polarization optical system, Furthermore, four polarization photos are used to calculate the polarization angle and polarization degree information of the polarization image.

    中文摘要 ................. V Abstract ................. VI 致謝 ...................... VII 目錄 ..................... VIII 圖目錄 ..................... X 表目錄 .................. XV 第一章 緒論 ............. 1 1-1 前言 ........... 1 1-2 研究動機 ....... 9 第二章 理論背景 ...... 10 2-1 斯托克斯參數(Stokes parameter) ................... 10 2-2 偏振旋轉器 ..................................... 13 2-2-1 扭曲向列型液晶原理 ........................ 14 2-2-2 串聯型-扭曲向列型液晶原理(Tandem-2ϕ-TNLC) ............ 17 第三章 模擬分析 .................. 20 3-1 TNLC的漏光分析 ................... 20 3-2 理想Tandem-2ϕ-TNLC的漏光分析 ..................... 24 3-3 Tandem-2ϕ-TNLC製作與組裝誤差分析 ........................ 29 3-3-1 Tandem-2ϕ-TNLC的配向角度誤差造成之漏光分析 .............. 29 3-3-2 Tandem-2ϕ-TNLC的組裝角度誤差造成之漏光分析 .............. 32 3-3-3 Tandem-2ϕ-TNLC的Cell gap誤差造成之漏光分析 ........... 34 3-3-4 Tandem-2ϕ-TNLC製作與組裝誤差分析小結 .............. 37 第四章 Tandem-2ϕ–TNLC的製程與檢....................... 38 4-1 TNLC的製程及材料介紹 .......................... 38 4-1-1 材料介紹 ............................... 38 4-1-2 製作流程 ............................ 40 4-2 Tandem-2ϕ–TNLC的檢測 ........................ 46 4-2-1 Tandem-2ϕ–TNLC的漏光檢測 .................. 46 4-2-2 漏光隨電壓變化的量測 ..................... 48 4-2-3 Tandem-2ϕ-TNLC的視角檢測 ................... 50 4-2-4 Tandem-2ϕ-TNLC的檢測分析小結 ............. 53 第五章 Tandem-2ϕ-TNLC為基礎的偏振相機 ................ 54 5-1 Tandem-2ϕ-TNLC規格及介面設計 ............... 56 5-1-1 Tandem-2ϕ-TNLC規格 .............. 56 5-1-2 Tandem-2ϕ-TNLC介面設計 ............ 56 5-2音頻訊號放大次系統 ................ 58 5-2-1 音頻電壓放大電路設計 ................... 58 5-2-2 藍牙音頻接收模組訊號放大電路系統 ................. 60 5-3偏振相機程式(Polarization Camera App) ............. 63 5-3-1 相機程式 .......................... 64 5-3-2 聲道音頻輸出程式 ........................... 64 5-3-3 偏振影像運算 ............................. 65 第六章 偏振相機系統組裝與偏振影像之系統測試 .................. 66 6-1 殼架(Housing)設計與組裝 ..................... 66 6-2 偏振相機系統的測試 ........................ 69 6-2-1 偏振影像 ......................... 69 6-2-2 偏振影像可用範圍的測試與判定 ................. 73 第七章 結論 ......................... 78 參考資料 ............................ 79 附錄 ............................ 80

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