Coding gray-tone mask for refractive mic
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Jun Yao; Jingqin Su; Jinglei Du; Yixiao Zhang; Fuhua Gao; Feng Gao; Yongkang Guo
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Article
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2000
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Elsevier Science
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English
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A new method has been developed to design gray-tone masks for microlens fabrication. Unlike previous methods which modulate the light intensity by changing the cell size or cell pitch only, the method relays on adjusting both the shape and position of a cell which gives an extra freedom to control t