| Experiments of a grating light modulator for projection display applications. | |
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MedLine Citation:
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PMID: 19305465 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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A micromechanical optical modulator called a grating light modulator (GLM) with electrostatic actuation, fabricated by the conventional process, is described. The GLM is operated by the interaction of a stationary reflector and a movable sliding grating. The GLM is a micromechanical phase grating. The phase difference is determined by the slide of the movable part (upper grating), allowing different diffraction patterns of reflected light. In addition, 100% modulation in the first/zero order can act as an optical switch and produce bright or dark pixels in a projection display system. Built using microelectromechanical system technology, and designed to be manufactured using mainstream integrated circuit fabrication technology, a 256-pixel GLM array is fabricated. We also describe projection display applications of a GLM as a high efficiency spatial light modulator. The optimized display system with a GLM is theoretically discussed in detail. The single-color and three-color experimental results indicate that the GLM technology has characteristics that make it suitable for projection display applications. |
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Authors:
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Zhang Jie; Zhu Yong; Sun Jiyong; Wang Ning; Wei Wei |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Applied optics Volume: 48 ISSN: 1539-4522 ISO Abbreviation: Appl Opt Publication Date: 2009 Mar |
Date Detail:
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Created Date: 2009-03-23 Completed Date: 2009-05-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0247660 Medline TA: Appl Opt Country: United States |
Other Details:
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Languages: eng Pagination: 1675-82 Citation Subset: - |
Affiliation:
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The Key Laboratory for Optoelectronic Technology and Systems, Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, 400030, China. zhangjie@cqu.edu.cn |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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