Reflective optical components based on chiral liquid crystal for head-up displays

IF 0.7 Q3 CRYSTALLOGRAPHY Liquid Crystals Today Pub Date : 2021-07-03 DOI:10.1080/1358314X.2021.2036431
Migle Stebryte
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引用次数: 2

Abstract

ABSTRACT The emerging near-eye displays for see-through augmented reality (AR) and virtual reality (VR) have inspired new applications of optical gratings, for example, as waveguide-coupling components. For such applications, reflective diffraction gratings and reflective lenses based on self-organised chiral liquid crystal (CLC) are strong contenders because of their high diffraction efficiency and unique polarisation selectivity. However, in order to design optical systems that use such components, the optical properties of CLC diffraction gratings need to be thoroughly investigated and understood. In order to better understand the structure and diffraction properties of such components we simulated the behaviour of two cholesteric liquid crystal configurations (planar and slanted) and compared them with experimental results. This paper covers advancements in CLC diffraction grating research, comparison between different theories for the director configuration in the bulk and further investigation of the optical properties of the devices. The evolution of reflective CLC lenses is discussed and lenses with a small f – number are described. In this review paper we show that progress made in the field of CLC-based flat optics has a high potential for AR/VR display systems.
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基于手性液晶的平视显示器反射光学元件
摘要:新兴的用于透视增强现实(AR)和虚拟现实(VR)的近眼显示器激发了光栅的新应用,例如作为波导耦合元件。对于此类应用,基于自组织手性液晶(CLC)的反射衍射光栅和反射透镜由于其高衍射效率和独特的偏振选择性而成为有力的竞争者。然而,为了设计使用这种组件的光学系统,需要彻底研究和理解CLC衍射光栅的光学特性。为了更好地理解这些组件的结构和衍射特性,我们模拟了两种胆甾醇型液晶配置(平面和倾斜)的行为,并将其与实验结果进行了比较。本文介绍了CLC衍射光栅的研究进展,体中指向矢配置的不同理论之间的比较,以及对器件光学性能的进一步研究。讨论了反射CLC透镜的演变,并描述了具有小f数的透镜。在这篇综述文章中,我们表明基于CLC的平面光学领域的进展对AR/VR显示系统具有很高的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Liquid Crystals Today
Liquid Crystals Today CRYSTALLOGRAPHY-
CiteScore
2.80
自引率
0.00%
发文量
19
期刊最新文献
In memoriam of professor Lev Mikhailovich Blinov, 1939 – 2023 High fidelity mini-LED backlit liquid crystal displays Report on the British Liquid Crystal Society (BLCS) annual meeting, 19th-21st April 2023 In memory of Mortimer M. Labes Research news
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