Dielectric liquid microlens with well-shaped electrode.
A dielectric liquid microlens with a well-shaped electrode is demonstrated. The bottom well-shaped electrode and the top planar electrode induce an inhomogeneous electric field when a voltage is applied, which causes the focal length to change. Adaptive microlenses and microlens arrays with well-shaped electrode are fabricated and their performance is evaluated. The bi-convex structure introduces a larger optical power. Compared with common planar-electrodes liquid lenses, this well-shaped electrode not only inhibits drifting of the liquid but also reduces the operating voltage.
Xu
Su
S
College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.
Lin
Yeong-Jyh
YJ
Wu
Shin-Tson
ST