Journal
APPLIED PHYSICS LETTERS
Volume 109, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4964426
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Funding
- Pioneer Program of Korea National Research Foundation [2013M3C1A3059557]
- SW Contents Future Innovation Program of ETRI
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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. Published by AIP Publishing.
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