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 …

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 …

As a typical representative of dopants, organic functional dyes have demonstrated their
significant roles in novel smart liquid crystal (LC) devices, and dye‐doped LCs have also …

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 …

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 …

Despite the recent advances in augmented reality (AR), which has shown the potential to
significantly impact on our daily lives by offering a new way to manipulate and interact with …

There is an increasing need to control light phase with tailored precision via simple means
in both fundamental science and industry. One of the best candidates to achieve this goal …

Using a single substrate, we demonstrate a simple two-dimensional (2-D) phase grating cell
with an octothorp electrode. Owing to the large spatial phase difference in any direction, the …

In this study we present an investigation of electrically tunable progressive lenses utilizing
liquid crystals (LC). We introduce a polarized progressive LC lens capable of dynamically …

Phase-only devices based on liquid crystals are becoming popular solutions for a high
number of applications in many diverse areas. The use of an electrooptic material such as …