【正文】 等系統(tǒng)中基本的構(gòu)造單元甚至是重要的器件。 關(guān)鍵詞 :液晶空間光調(diào)制器 ；位相光柵；空間光場(chǎng)模式 II Abstract The spatial light modulator is a ponent of the optical field distribution of light modulation, which is widely used in optical information processing. The liquid crystal spatial light modulator is more easily to produce, cost lower and be higher efficiency and can achieve realtime modulation of the light wave pare with other spatial light modulator. Based on the many advantages of liquid crystal spatial light modulator, we design a liquid crystal spatial light modulator to study the space optical field model. A liquid crystal display fitting for SLM is chosen. Based on the former researches, the driver circuit is modified, the values in registers are set and the module of video signal processing is added in terms of the driving structure and the optical properties of the LCD. The voltage on the molecule of the liquid crystal display is limited in the period which can achieve phaseonly modulating. The structure of power supply is modified to make the signal processing more stable. The size of printed circuit board is smaller. It is operated more conveniently by modulating of microputer unit and serial interface control. The liquid crystal spatial light modulator has been designed pletely. Firstly, we use the liquid crystal spatial light modulator to produce a phase grating for the optical diffraction experiment according to the phase modulation characteristics. We also take measure the space location of diffraction spots. Then we use the liquid crystal spatial light modulator to make Fresnel Walpole strip which can simulate the focusing effect of the lens. Keywords: Liquid Crystal Spatial Light Modulator。 首先設(shè)計(jì)制作液晶空間光調(diào)制器，在確定選用的液晶屏之后，在前人的基礎(chǔ)上根據(jù)液晶屏的電光調(diào)制特性及驅(qū)動(dòng)結(jié)構(gòu)，改進(jìn)驅(qū)動(dòng)電路并對(duì)寄存器進(jìn)行調(diào)整，將加載在液晶分子兩側(cè)的電壓設(shè)定在能夠?qū)崿F(xiàn)純相位調(diào)制的區(qū)域，同時(shí)對(duì)電源結(jié)構(gòu)進(jìn)行了修改，使液晶空間光調(diào)制器處理信號(hào)更加穩(wěn)定。液晶空間光調(diào)制器相對(duì)于其他的空間光調(diào)制器而言，制作簡(jiǎn)單，成本較低，且能高效率 地實(shí)現(xiàn)對(duì)光波進(jìn)行實(shí)時(shí)調(diào)制。 指導(dǎo)教師 李 鳴 。 武漢輕工大學(xué) 畢 業(yè) 設(shè) 計(jì)（論文） 畢業(yè) 題目： 基于液晶空間相位調(diào)制的空間光場(chǎng)模式研究 姓 名 陳 慧 迎 . 學(xué) 號(hào) 101204401 . 院 系 電氣與電子工程學(xué)院 。 專(zhuān) 業(yè) 電子信息科學(xué)與技術(shù) 。 20xx 年 6 月 3 號(hào) 目 錄 摘 要 ....................................................................................................................................... I Abstract ..................................................................................................................................II 第一章 緒論 ...................................................................................................................... 1 概述 ......................................................................................................................... 1 液晶空間光調(diào)制器的 發(fā)展概況 .............................................................................. 1 近年來(lái)液晶空間光調(diào)制器的應(yīng)用 ......................................................................... 2 本文研究的目的和工作 ......................................................................................... 4 第二章 液晶空間相位調(diào)制器的結(jié)構(gòu)原理和分類(lèi) .......................................................... 5 液晶材料及光學(xué)特性 ............................................................................................ 5 液晶的種類(lèi)及其物理特性 ........................................................................... 5 液晶的連續(xù)體理論 ................................................................................................. 6 液晶的電光效應(yīng) ..................................................................................................... 6 空間光調(diào)制器的原理 .............................................................................................. 9 空間光調(diào)制器的分類(lèi) ............................................................................................ 10 電尋址液晶空間光調(diào)制器 .................................................................................... 11 本章小結(jié) ................................................................................................................ 12 第三章 液晶空間光調(diào)制器驅(qū)動(dòng)電路設(shè)計(jì) .................................................................... 13 液晶屏顯示模塊介紹 ........................................................................................... 13 驅(qū)動(dòng)電路設(shè)計(jì) ....................................................................................................... 14 驅(qū)動(dòng)電路的作用 ....................................................................................... 14 驅(qū)動(dòng)電路的設(shè)計(jì) ....................................................................................... 14 模擬視頻信號(hào)處理 ..................................................................................... 14 數(shù)字同步信號(hào)處理 ................................................................................... 16 數(shù)字同步信號(hào)處理 ................................................................................... 17 軟件設(shè)計(jì) .............................................................................................................. 18 整體電路的設(shè)計(jì) ................................................................................................. 19 本章小結(jié) .............................................................................................................. 20 第四章 利用液晶空間光調(diào)制器研究液晶空間光場(chǎng)模式 ............................................ 21 液晶空間光調(diào)制器模擬位相光柵 ....................................................................... 21 相位測(cè)量基本光路 ................................................................................... 21 最大相位調(diào)制量的測(cè)量分析 ................................................................... 21 制作 位相光柵 .......................................................................................... 23 位相光柵實(shí)驗(yàn)參數(shù)的測(cè)量 ..............................