An oscillation assisted digital light processing (DLP) based 3D printing approach is developed to enable ultrafast fabrication of microlens arrays with optically smooth surface (1 nm surface roughness ...

Microlenses have many applications, such as coupling light into fiber optics, enhancing light source uniformity in microdisplays, and focusing light onto imaging sensors in mobile phone cameras.

With increasing demand for miniaturization of optoelectronics, microlens array has attracted significant attention and become an important micro-optics device widely used in compact imaging, sensing, ...