Advanced liquid crystal devices for augmented reality and virtual reality displays: principles and applications

K Yin, EL Hsiang, J Zou, Y Li, Z Yang, Q Yang… - Light: Science & …, 2022 - nature.com
Liquid crystal displays (LCDs) and photonic devices play a pivotal role to augmented reality
(AR) and virtual reality (VR). The recently emerging high-dynamic-range (HDR) mini-LED …

Flat optics with designer metasurfaces

N Yu, F Capasso - Nature materials, 2014 - nature.com
Conventional optical components such as lenses, waveplates and holograms rely on light
propagation over distances much larger than the wavelength to shape wavefronts. In this …

Presbyopia: effectiveness of correction strategies

JS Wolffsohn, LN Davies - Progress in retinal and eye research, 2019 - Elsevier
Presbyopia is a global problem affecting over a billion people worldwide. The prevalence of
unmanaged presbyopia is as high as 50% of those over 50 years of age in developing world …

Resolving the vergence-accommodation conflict in head-mounted displays

G Kramida - IEEE transactions on visualization and computer …, 2015 - ieeexplore.ieee.org
The vergence-accommodation conflict (VAC) remains a major problem in head-mounted
displays for virtual and augmented reality (VR and AR). In this review, I discuss why this …

Electrically actuated varifocal lens based on liquid-crystal-embedded dielectric metasurfaces

M Bosch, MR Shcherbakov, K Won, HS Lee, Y Kim… - Nano Letters, 2021 - ACS Publications
Compact varifocal lenses are essential to various imaging and vision technologies.
However, existing varifocal elements typically rely on mechanically actuated systems with …

A varifocal graphene metalens for broadband zoom imaging covering the entire visible region

S Wei, G Cao, H Lin, X Yuan, M Somekh, B Jia - ACS nano, 2021 - ACS Publications
The ever-increasing demand for miniaturized optical systems has placed stringent
requirements on the core element: lenses. Developing ultrathin flat lenses with a varifocal …

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 …

Bioinspired tunable lens with muscle‐like electroactive elastomers

F Carpi, G Frediani, S Turco… - Advanced functional …, 2011 - Wiley Online Library
Optical lenses with tunable focus are needed in several fields of application, such as
consumer electronics, medical diagnostics and optical communications. To address this …

Liquid-crystal materials find a new order in biomedical applications

SJ Woltman, GD Jay, GP Crawford - Nature materials, 2007 - nature.com
With the maturation of the information display field, liquid-crystal materials research is
undergoing a modern-day renaissance. Devices and configurations based on liquid-crystal …

Waveguide optics focus elements

SJ Robbins, IA Nguyen, DD Bohn - US Patent 10,502,876, 2019 - Google Patents
In embodiments of waveguide optics focus elements, an imaging structure includes a
waveguide for viewing of an environment that is viewable with the imaging structure. The …