In this Review, we survey recent developments in the emerging field of high-speed variable-
z-focus optical elements, which are driving important innovations in advanced imaging and …

Optofluidics seamlessly combines optics and microfluidics together to construct novel
devices for microsystems, providing flexible reconfigurability and high compatibility. By …

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

The construction of a miniature camera module that can explore inside limited spaces is of
great interest for the design of millimeter-scale devices, such as endoscopes. This article …

This paper proposes a novel dynamic focusing module driven by galvanometers to position
the laser focus with high speed and high precision. Thanks to the extremely high …

We propose and demonstrate a compact tunable lens with high transmittance using a
dielectric elastomer sandwiched by transparent conductive liquid. The transparent …

Smartphones account for a large and growing portion of global electronic waste, and the life
extension of electronic systems—particularly by refurbishment—is a viable solution for …

A two-dimensional varifocal scanning imaging system has been employed broadly in
various fields, such as biomedicine, holographic projection, and optical communication. As a …

Consumers pay most attention to the camera function of smartphones. Thus, manufacturers
focus on improving the capabilities of camera modules to deliver clearer and sharper …

A remarkable feature of Alvarez lenses is that a wide focal length tuning range can be
achieved using lateral displacement rather than commonly used axial translation, thus …