Variable-Focus Liquid-Crystal Fresnel Lens
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概要
- 論文の詳細を見る
Liquid-crystal lens-cells shaped like a piano-convex Fresnel lens with homogeneous alignment are prepared. Their focal length can be varied from the value f_c for an extraordinary ray to nearly f_o for an ordinary ray by applying an electric field across the cell. The response and recovery times within several seconds are attained in the liquid-crystal lenses. More transparent (&〜80%) variable-focus liquid-crystal lenses are achieved in the double-layered structure of two identical liquid-crystal Fresnel lenses with a mutually orthogonal optic axis.
- 社団法人応用物理学会の論文
- 1985-08-20
著者
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SUGIYAMA Akira
Department of Molecular Biology and Medicine, Research Center for Advanced Science and Technology, U
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Sato Ryuji
Department Of Chemistry Nagaoka University Of Technology
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Sato Susumu
Department Of Electrical And Electronic Engineering Akita University
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Sato Rumiko
Department Of Electronic Engineering Mining College Akita University
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Sugiyama A
Mie Prefectural Inst. Public Health Tsu
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Sugiyama Akira
Department Of Electronic Engineering Mining College Akita University
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Sugiyama Akira
Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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