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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Electroactive liquid lens driven by an annular membrane

Kang Wei, Nicholas Wade Domicone, and Yi Zhao  »View Author Affiliations


Optics Letters, Vol. 39, Issue 5, pp. 1318-1321 (2014)
http://dx.doi.org/10.1364/OL.39.001318


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Abstract

Unlike traditional focalization that recruits multiple moving lens elements to adjust focus, liquid lenses deliver adaptive focusing by simply tuning the surface profile of liquid or the elastomer that encloses liquid. Its simple and compact configuration, low cost, and actuation efficiency promise wide industrial, medical, and consumer applications. Dielectric elastomers (DEs), one type of commercially available soft active material, have been a good fit for creating adaptive optics. In this Letter, we present an adaptive, membrane-sealed liquid lens hydrostatically coupled to a concentric annular DE actuator. Electric actuation deforms the annular DE, which induces fluid transmission between the lens part and the actuation part for lens actuation. The maximum measured focal range was from 25.4 to 105.2 mm within 1.0 kV, which significantly outperforms the existing DE-actuated liquid lenses and eliminates the need for prestraining. The lens also enables varied focal ranges by simply adjusting its initial surface sagitta, providing flexibility for practical imaging applications.

© 2014 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(230.4685) Optical devices : Optical microelectromechanical devices
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: December 13, 2013
Revised Manuscript: January 24, 2014
Manuscript Accepted: January 27, 2014
Published: February 27, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Kang Wei, Nicholas Wade Domicone, and Yi Zhao, "Electroactive liquid lens driven by an annular membrane," Opt. Lett. 39, 1318-1321 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-39-5-1318

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