Focal-length-tunable elastomer-based liquid-filled plano-convex mini lens

Optics Letters
Chaolong FangDawei Zhang

Abstract

A liquid plano-convex lens with focal length tuning is proposed, which is formed by sinking an oil droplet onto the bottom of an elastomer. A simple and low-cost fabrication method is presented. The lens aperture and initial focal length can be controlled during the fabrication. Furthermore, focal length tuning is demonstrated. The lens made of a 40 mg oil droplet can achieve the tuning range from 12 to 17 mm. The effective aperture of the lens is about 2.8 mm. In the demonstration of an imaging system, the lens assists in focusing and a clear image can be observed.

References

Apr 7, 2006·Proceedings of the National Academy of Sciences of the United States of America·Guoqiang LiNasser Peyghambarian
Sep 17, 2008·Optics Express·Hongwen RenShin-Tson Wu
Mar 4, 2011·Optics Express·Wei ZhangAndreas Seifert
May 20, 2011·Optics Letters·Seung Tae ChoiWoonbae Kim
Jul 3, 2013·Optics Letters·Hyunhwan Choi, Yonghyub Won
Mar 26, 2014·Optics Express·Jiyoon KimSin-Doo Lee
Apr 3, 2014·Optics Letters·Kang WeiYi Zhao
Oct 17, 2014·Optics Express·Rui BaoMao Ye
May 1, 2015·Optics Letters·Lei LiQiong-Hua Wang
Oct 16, 2015·Optics Letters·Rongrong SunLei Li
Jan 1, 2010·Progress in Optics·Guoqiang Li

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