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Study on Phase-shifting and Display Technique of Digital Hologram

Author: XiongJianXin
Tutor: LiZhiYang
School: Central China Normal University
Course: Circuits and Systems
Keywords: Digital holography Liquid crystal spatial light modulator Real-time 3D stereoscopic display
CLC: O438.1
Type: Master's thesis
Year: 2009
Downloads: 185
Quote: 1
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Abstract


In recent years , with computer technology , CCD and CMOS image sensor technology and the development of spatial light modulator , digital holographic technology has been developing rapidly . The need for conventional holography holographic plate is exposed and developed , the process cumbersome , digital holography , particularly those based on the spatial light modulator can achieve conventional holographic displays holographic plate is difficult to achieve real-time three-dimensional display , become the focus of attention . In this thesis, digital holographic recording , processing, especially those based on LCD technology, real-time three-dimensional display technology for a detailed experimental study . Paper uses a 532nm laser light and the reference plane , the use of CMOS sensor built a set of digital holographic recording experimental system to achieve real-time digital coaxial holographic recording and processing . Paper while the CPLD as the core control chip, designed and developed a liquid crystal spatial light modulator hardware driver circuit , and Quartus Ⅱ as the software platform , using Verilog HDL hardware description language for the corresponding software development. Further thesis liquid crystal spatial light modulator to build a set of digital three-dimensional holographic display system, to achieve a small real-time three-dimensional display object . Our experimental study further shows that using CMOS image sensor technology and liquid crystal spatial light modulator in digital holography convenience , timeliness and other aspects are far superior to conventional holographic plate -based holographic technology, with digital holography development , it is bound to be more widely used .

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CLC: > Mathematical sciences and chemical > Physics > Optics > Information Optics > Holographic optical
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