Xu Su, Lin Yeong-Jyh, Wu Shin-Tson
College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.
Opt Express. 2009 Jun 22;17(13):10499-505. doi: 10.1364/oe.17.010499.
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.
展示了一种具有阱形电极的介电液体微透镜。当施加电压时，底部的阱形电极和顶部的平面电极会感应出不均匀电场，这会导致焦距发生变化。制作了具有阱形电极的自适应微透镜和微透镜阵列，并对其性能进行了评估。双凸结构引入了更大的光焦度。与普通平面电极液体透镜相比，这种阱形电极不仅抑制了液体的漂移，还降低了工作电压。
