Liquid lens driven by elastomer actuator

Boya Jin; Ji-Hyeon Lee; Zuowei Zhou; Gi-Bbeum Lee; Hongwen Ren; Changwoon Nah

doi:10.1117/12.2187743

3 September 2015 Liquid lens driven by elastomer actuator

Boya Jin, Ji-Hyeon Lee, Zuowei Zhou, Gi-Bbeum Lee, Hongwen Ren, Changwoon Nah

Proceedings Volume 9580, Zoom Lenses V; 95800O (2015) https://doi.org/10.1117/12.2187743
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

By filling a liquid droplet in the hole of a dielectric elastomer (DE) film directly, we prepared two small liquid lenses. The aperture of one lens is macro size and the other is micro size. The liquid droplet in each hole of the DE film exhibits a lens character due to its biconvex shape. In relaxed state, the focal length of each liquid droplet is the longest. When a sufficiently high DC voltage is applied, the diameter of each DE hole is decreased by the generated Maxwell stress, causing the curvature of its droplet to increase. As a result, the focal length of each lens is reduced. Here the DE film functions as an actuator. In contrast to previous approaches, our miniature liquid lenses possess the advantages of simple fabrication, fast response time (~ 540 ms), and high optical performance (~ 114 lp/mm). Moreover, the micro-sized liquid lens presents good mechanical stability.

Citation Download Citation

Boya Jin, Ji-Hyeon Lee, Zuowei Zhou, Gi-Bbeum Lee, Hongwen Ren, and Changwoon Nah "Liquid lens driven by elastomer actuator", Proc. SPIE 9580, Zoom Lenses V, 95800O (3 September 2015); https://doi.org/10.1117/12.2187743

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