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We fabricated an ecofriendly, electroactive, reconfigurable and varifocal PVC–ATBC (ePVC) gel lens. The curvature of the hemispherical plano-convex ePVC gel lens changes with the input voltage. Its focal length increased from 5 to 15 mm upon increasing from 0 to 500 V.
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Bae et al. (2015) studied this question.
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