フレネル型液晶レンズにおけるリタデーション実測評価

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タイトル別名
  • Measurement of Optical Retardation for Fresnel Liquid Crystal Lens
  • フレネル　ガタ　エキショウ　レンズ　ニ　オケル　リタデーション　ジッソク　ヒョウカ

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説明

We have achieved direct measurement of distributions of optical retardation which is an origin of lens power in tunable liquid crystal (LC) lens.Th is paper introduces the trend of tunable eyeglasses with LCl ens application first, and express the progress of our Fresnel LC lens development and their technical issues with the background of our present studies. Next, principles and structures of Fresnel LC lens, their design approach and the examples of trial samples are introduced. Then, as a result of present researches, principles of a measurement of optical retardation, original evaluation systems built with existing polarized microscope, inspection and discussion of directly measured distributions of optical retardation in Fresnel LC lens are reported. Finally, their lens power characteristics and images of present manufacturing samples with these measurement technologies, and the future prospects of large aperture of tunable LC lens are described.

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