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Experimental research on DMD spatial light modulator and its multi-spectrum imaging

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Titel Experimental research on DMD spatial light modulator and its multi-spectrum imaging
Serientitel The 8th International Symposium on Display Holography (ISDH 2009)
Teil 41
Anzahl der Teile 57
Autor Li, Yaotang
Lizenz CC-Namensnennung - keine Bearbeitung 2.0 UK: England & Wales:
Sie dürfen das Werk in unveränderter Form zu jedem legalen Zweck nutzen, vervielfältigen, verbreiten und öffentlich zugänglich machen, sofern Sie den Namen des Autors/Rechteinhabers in der von ihm festgelegten Weise nennen.
DOI 10.5446/21847
Herausgeber River Valley TV
Erscheinungsjahr 2012
Sprache Englisch
Produktionsort Shenzhen, China

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Fachgebiet Informatik
Abstract The fabric of digital micromirror device (DMD) and its operation are presented. Based on analyzing the electronic circuits and control signals of several types of commercial DLP projectors, the circuits of the projector that relate to warm-up, inter-locked protection, UHP lamp control and testing and color wheel control and detecting are successfully separated. After having simulated these control signals by a digital logic circuit experimentally and applied them to the main control board of the projector, the DMD chip operates normally. The modulating and multi spectrum imaging properties of the modified DMD spatial light modulator are dealt with in details. A compact 4f Fourier transfer system is designed and assembled for multi spectrum coherent image read-out. As a practical use, an experimental setup for holographic stereograms is established using the modified DMD spatial modulator. The created synthetic holographic stereograms have high contrast and low noise. The fabric of digital micromirror device (DMD) and its operation are presented. Based on analyzing the electronic circuits and control signals of several types of commercial DLP projectors, the circuits of the projector that relate to warm-up, inter-locked protection, UHP lamp control and testing and color wheel control and detecting are successfully separated. After having simulated these control signals by a digital logic circuit experimentally and applied them to the main control board of the projector, the DMD chip operates normally. The modulating and multi spectrum imaging properties of the modified DMD spatial light modulator are dealt with in details.

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