Variable-focus liquid lens for miniature cameras

被引:948
作者
Kuiper, S [1 ]
Hendriks, BHW [1 ]
机构
[1] Philips Res Eindhoven, NL-5656 AA Eindhoven, Netherlands
关键词
D O I
10.1063/1.1779954
中图分类号
O59 [应用物理学];
学科分类号
摘要
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. It is demonstrated that two liquids in a tube form a self-centered lens with a high optical quality. The motion of the lens during a focusing action was studied by observation through the transparent tube wall. Finally, a miniature achromatic camera module was designed and constructed based on this adjustable lens, showing that it is excellently suited for use in portable applications. (C) 2004 American Institute of Physics.
引用
收藏
页码:1128 / 1130
页数:3
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