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Journal Article
An Electro-active Polymer based Lens Module for Dynamically Varying Focal System
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- Authors
- Sungryul Yun, Suntak Park, Saekwang Nam, Bongje Park, Seung Koo Park, Seongcheol Mun, Jeong Mook Lim, Ki-Uk Kyung
- Issue Date
- 2016-10
- Citation
- Applied Physics Letters, v.109, no.14, pp.1-5
- ISSN
- 0003-6951
- Publisher
- American Institute of Physics (AIP)
- Language
- English
- Type
- Journal Article
- Abstract
- We demonstrate a polymer-based active-lens module allowing a dynamic focus controllable optical system with a wide tunable range. The active-lens module is composed of parallelized two active-lenses with a convex and a concave shaped hemispherical lens structure, respectively. Under operation with dynamic input voltage signals, each active-lens produces translational movement bi-directionally responding to a hybrid driving force that is a combination of an electro-active response of a thin dielectric elastomer membrane and an electro-static attraction force. Since the proposed active lens module widely modulates a gap-distance between lens-elements, an optical system based on the active-lens module provides widely-variable focusing for selective imaging of objects in arbitrary position.
- KSP Keywords
- Active response, Attraction force, Dielectric elastomer(DE), Driving forces, Dynamic focus, Dynamic input, Elastomer membrane, Electro-static, Hybrid driving, Input voltage, Lens module