Optical element for extracting circularly polarized light

作者: Keiji Kajima , 啓二 鹿島 , Masaki Umetani , 雅規 梅谷 , 幸広 豊田

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摘要: PROBLEM TO BE SOLVED: To enable extraction of circularly polarized light a prescribed rotational direction from both reflection and transmission light. SOLUTION: An optical element for extracting 10 is constituted transmissive substrate 12 layered body 14 which on it. The by layering plurality liquid crystal layers 15A, 15B, 15C... are respectively made cholesteric such that the spiral pitch molecules in each to be mutually different. thickness layer smaller than obtain maximum reflectance, part component either dextrorotatory or levorotatory reflected at reflectance rest other transmitted.

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