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Proceedings Paper

Liquid lens driven by elastomer actuator
Author(s): Boya Jin; Ji-Hyeon Lee; Zuowei Zhou; Gi-Bbeum Lee; Hongwen Ren; Changwoon Nah
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Paper 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.

Paper Details

Date Published: 3 September 2015
PDF: 9 pages
Proc. SPIE 9580, Zoom Lenses V, 95800O (3 September 2015); doi: 10.1117/12.2187743
Show Author Affiliations
Boya Jin, Chonbuk National Univ. (Korea, Republic of)
Ji-Hyeon Lee, Chonbuk National Univ. (Korea, Republic of)
Zuowei Zhou, Chonbuk National Univ. (Korea, Republic of)
Gi-Bbeum Lee, Chonbuk National Univ. (Korea, Republic of)
Hongwen Ren, Chonbuk National Univ. (Korea, Republic of)
Changwoon Nah, Chonbuk National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9580:
Zoom Lenses V
Ellis Betensky; Takanori Yamanashi, Editor(s)

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