Bailey, J, Kaur, S, Morgan, PB et al. (3 more authors) (2017) Design Considerations for Liquid Crystal Contact lenses. Journal of Physics D - Applied Physics, 50 (48). 485401. ISSN 0022-3727
Abstract
Switchable liquid crystal contact lenses with electrically controllable focal powers have previously been investigated as an alternative to bifocal contact lenses and spectacles for the correction of presbyopia. The simplest lens design uses a meniscus shaped cavity within the lens to contain the liquid crystal. The design of such a lens is considered in detail, including the nematic alignment and electrodes materials. The organic transparent conductor PEDOT:PSS was used as both electrode and planar alignment. Four different configurations are considered, using both planar and homeotropic orientations with either homogenous or axial alignment. Controllable switching of the focal power was demonstrated for each mode and focal power changes of up to ΔP=3.3 ± 0.2 D achieved. Such lens designs offer significant potential for a novel form of correction for this common visual problem.
Metadata
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Copyright, Publisher and Additional Information: | © 2017 IOP Publishing Ltd. This is an author produced version of a paper published in Journal of Physics D: Applied Physics. Uploaded in accordance with the publisher's self-archiving policy. | ||||||
Keywords: | Liquid crystals; nematics; electro-optic effects; switchable contact lenses | ||||||
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Institution: | The University of Leeds | ||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Soft Matter Physics (Leeds) | ||||||
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Depositing User: | Symplectic Publications | ||||||
Date Deposited: | 13 Oct 2017 08:25 | ||||||
Last Modified: | 13 Oct 2018 00:38 | ||||||
Status: | Published | ||||||
Publisher: | IOP | ||||||
Identification Number: | https://doi.org/10.1088/1361-6463/aa9358 |