Novel concave-based micro optical components

This research demonstrates three novel concave-based micro optical components. A double-concave (DCV) lens is realized by a simple polymer dispensing and sucking process. The DCV component consists of a high-aspect-ratio lens frame structure and dispensed UV-curable polymer lens. Moreover, this study further employs the process for DCV to implement the concave-mirror and the doublet. The measurements show a typical DCV (made of NOA63 polymer) has negative focal lengths of −1.42mm (for 632.8nm red-laser) and −1.17mm (for 473nm blue-laser), and a typical concave mirror has a focal-length of 3.28mm. The NOA63/PDMS doublet is also demonstrated.