Polarisation independent liquid crystal lenses and contact lenses using embossed reactive mesogens
Polarisation independent liquid crystal lenses and contact lenses using embossed reactive mesogens
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DOI：
10.1002/jsid.874
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发表时间：
2020-01
影响因子：
2.3
通讯作者：
J. C. Jones;M. Wahle;J. Bailey;Tom Moorhouse;B. Snow;Joe Sargent
中科院分区：
文献类型：
--
作者：
J. C. Jones;M. Wahle;J. Bailey;Tom Moorhouse;B. Snow;Joe Sargent
液晶透镜由于其可调谐性与低电功率、成本和重量相结合而在光学系统中具有前景。这种系统的一个很好的例子是用于矫正与年龄相关的老花眼的可切换隐形眼镜。使用弯月形透镜配置中的双折射液晶可以进行足够大的相位调制。然而，双折射材料固有地依赖于偏振，通常需要正交偏振被单独聚焦。提出了一种基于反应性介晶制备偏振无关透镜的新方法。给出了2级和3级衍射菲涅耳透镜的结果，并讨论了该技术用于折射透镜（如隐形眼镜）的前景。
Liquid crystal lenses have promise in optical systems owing to their tunability combined with low electrical power, cost, and weight. A good example of such a system is switchable contact lenses for the correction of age‐related presbyopia. Sufficiently large phase modulation can be done using nematic liquid crystals in a meniscus lens configuration. However, the birefringent materials are inherently polarisation dependent, usually requiring orthogonal polarisations to be focussed separately. A novel method is presented for producing polarisation independent lenses based on reactive mesogens. Results are presented for a 2‐level and 3‐level diffractive Fresnel lenses, and the promise of the technique for use in refractive lenses such as contact lenses is discussed.