Liquid crystal lenses with tunable focal length

YH Lin, YJ Wang, V Reshetnyak - Liquid Crystals Reviews, 2017 - Taylor & Francis
Lenses with tunable focal length play important roles in nature by helping species avoid
predators and capture prey. Many practical devices mimic lens concept for imaging, sensing …

Recent advances in adaptive liquid crystal lenses

JF Algorri, DC Zografopoulos, V Urruchi… - Crystals, 2019 - mdpi.com
An adaptive-focus lens is a device that is capable of tuning its focal length by means of an
external stimulus. Numerous techniques for the demonstration of such devices have been …

A high birefringence liquid crystal for lenses with large aperture

N Bennis, T Jankowski, O Strzezysz, A Pakuła… - Scientific reports, 2022 - nature.com
This work presents the application of an experimental nematic liquid crystal (LC) mixture
(1929) in a large aperture lens. The LC material is composed of terphenyl and biphenyl …

Extended depth-of-focus 3D micro integral imaging display using a bifocal liquid crystal lens

X Shen, YJ Wang, HS Chen, X Xiao, YH Lin, B Javidi - Optics letters, 2015 - opg.optica.org
We present a three dimensional (3D) micro integral imaging display system with extended
depth of focus by using a polarized bifocal liquid crystal lens. This lens and other optical …

Focusar: Auto-focus augmented reality eyeglasses for both real world and virtual imagery

P Chakravarthula, D Dunn, K Akşit… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
We describe a system which corrects dynamically for the focus of the real world surrounding
the near-eye display of the user and simultaneously the internal display for augmented …

Liquid crystal technology for vergence-accommodation conflicts in augmented reality and virtual reality systems: a review

YJ Wang, YH Lin - Liquid Crystals Reviews, 2021 - Taylor & Francis
With the help of augmented reality (AR) and virtual reality (VR) systems, users can receive
information and connect with each other via near-eye displays (NEDs). However, several …

Electrically adjustable location of a projected image in augmented reality via a liquid-crystal lens

HS Chen, YJ Wang, PJ Chen, YH Lin - Optics express, 2015 - opg.optica.org
An augmented reality (AR) system involving the electrically tunable location of a projected
image is implemented using a liquid-crystal (LC) lens. The projected image is either real or …

Tunable liquid crystal multifocal microlens array

JF Algorri, N Bennis, V Urruchi, P Morawiak… - Scientific Reports, 2017 - nature.com
A novel liquid crystal microlens array with tunable multifocal capability, high optical power
and fill-factor is proposed and experimentally demonstrated. A specific hole pattern design …

Swept source optical coherence tomography and tunable lens technology for comprehensive imaging and biometry of the whole eye

I Grulkowski, S Manzanera, L Cwiklinski, F Sobczuk… - Optica, 2018 - opg.optica.org
Standard optical systems in ophthalmology are strictly dedicated either to retinal or to
anterior segment imaging due to the refractive properties of the eye. We demonstrate a …

Liquid crystal lens with concentric electrodes and inter-electrode resistors

L Li, D Bryant, PJ Bos - Liquid Crystals Reviews, 2014 - Taylor & Francis
In this review, we provide an overview of recent efforts in designing high-quality tunable
liquid crystal (LC) lenses with concentric electrodes. The design concepts are introduced …