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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 15 — May. 20, 2012
  • pp: 2987–2996

Electromechanically driven variable-focus lens based on transparent dielectric elastomer

Sang-ik Son, David Pugal, Taeseon Hwang, Hyouk Ryeol Choi, Ja Choon Koo, Youngkwan Lee, Kwang Kim, and Jae-Do Nam  »View Author Affiliations


Applied Optics, Vol. 51, Issue 15, pp. 2987-2996 (2012)
http://dx.doi.org/10.1364/AO.51.002987


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Abstract

Dielectric elastomers with low elastic stiffness and high dielectric constant are smart materials that produce large strains (up to 300%) and belong to the group of electroactive polymers. Dielectric elastomer actuators are made from films of dielectric elastomers coated on both sides with compliant electrode material. Poly(3,4-ethylenedioxythiophene) (PEDOT), which is known as a transparent conducting polymer, has been widely used as an interfacial layer or polymer electrode in polymer electronic devices. In this study, we propose the transparent dielectric elastomer as a material of actuator driving variable-focus lens system using PEDOT as a transparent electrode. The variable-focus lens module has light transmittance up to 70% and maximum displacement up to 450. When voltage is applied to the fabricated lens module, optical focal length is changed. We anticipate our research to be a starting point for new model of variable-focus lens system. This system could find applications in portable devices, such as digital cameras, camcorder, and cell phones.

© 2012 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(080.3630) Geometric optics : Lenses
(160.2100) Materials : Electro-optical materials
(160.4670) Materials : Optical materials
(160.5470) Materials : Polymers

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: December 8, 2011
Revised Manuscript: March 3, 2012
Manuscript Accepted: March 7, 2012
Published: May 18, 2012

Citation
Sang-ik Son, David Pugal, Taeseon Hwang, Hyouk Ryeol Choi, Ja Choon Koo, Youngkwan Lee, Kwang Kim, and Jae-Do Nam, "Electromechanically driven variable-focus lens based on transparent dielectric elastomer," Appl. Opt. 51, 2987-2996 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-15-2987

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