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 …

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 …

In this paper, we propose a holographic capture and projection system of real objects based
on tunable zoom lenses. Different from the traditional holographic system, a liquid lens …

High performance imaging in parallel cameras is a worldwide challenge in computational
optics studies. However, the existing solutions are suffering from a fundamental …

Projectors require a zoom function. This function is generally realized using a zoom lens
module composed of many lenses and mechanical parts; however, using a zoom lens …

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 …

Conventionally, a digital micromirror device (DMD) can only perform binary amplitude
modulation of a light field. Simultaneous amplitude and phase modulation with a DMD is …

Electrically tunable liquid crystal microlenses have attracted strong research attention due to
their advantages of tunable focusing, voltage actuation, low power consumption, simple …

Conventional endoscopic systems consisting of several solid lenses suffer from a fixed and
limited depth-of-field (DOF). For practical applications, conventional endoscopes …

An optical zoom imaging system that can vary the magnification factor without displacing the
object and the image plane has been widely used. Nonetheless, conventional optical zoom …