The meniscus between two immiscible liquids can be used as an optical lens. A change in curvature of this meniscus by electrowetting leads to a change in focal distance. We demonstrate that two liquids in a tube form a self-centered tunable lens of high optical quality. Several properties were studied, such as optical performance, electrical characteristics and dynamic behavior. We designed and constructed a miniature camera module based on this tunable lens and show that it is very well suited for use in portable applications.
|Title of host publication||Current developments in lens design and optical engineering V : 4-5 August 2004, Denver, Colorado, USA|
|Editors||P.Z. Mouroulis, W.J. Smith, R.B. Johnson|
|Place of Publication||Bellingham|
|Publication status||Published - 2004|
|Name||Proceedings of SPIE|