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Related Experiment Video

Updated: May 31, 2026

Fabrication Process of Silicone-based Dielectric Elastomer Actuators
10:32

Fabrication Process of Silicone-based Dielectric Elastomer Actuators

Published on: February 1, 2016

Tunable solid-body elastomer lenses with electromagnetic actuation.

Peter Liebetraut1, Sebastian Petsch, Wolfgang Mönch

  • 1Laboratory for Micro-optics, Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Köhler-Allee 102, 79110 Freiburg, Germany. peter.liebetraut@imtek.uni‐freiburg.de

Applied Optics
|July 12, 2011
PubMed
Summary
This summary is machine-generated.

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We developed tunable solid-body elastomer lenses with adjustable focal lengths using magnetic or mechanical force. These novel lenses show a linear relationship between strain and focal length tuning, offering precise optical control.

Area of Science:

  • Optics and Photonics
  • Materials Science
  • Mechanical Engineering

Background:

  • Adjustable focus lenses are crucial for advanced optical systems.
  • Elastomeric materials offer unique possibilities for tunable optics.

Purpose of the Study:

  • To introduce novel biconvex solid-body elastomer lenses with magnetically or mechanically tunable focal lengths.
  • To investigate the relationship between induced strain and focal length change in these lenses.

Main Methods:

  • Fabrication of biconvex polydimethylsiloxane lenses.
  • Application of radial elastic strain via magnetic or mechanical actuation.
  • Measurement of focal length changes.
  • Comparison with finite element simulations.

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Last Updated: May 31, 2026

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Published on: February 1, 2016

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators
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Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

Published on: May 20, 2018

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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Main Results:

  • Demonstrated tunable focal length in elastomer lenses.
  • Observed a linear correlation between induced strain and focal length tuning (approx. 10% or 3 mm).
  • Investigated the effect of initial lens curvature and actuation design.
  • Validated experimental findings with finite element simulations.

Conclusions:

  • Solid-body elastomer lenses offer a viable platform for tunable optics.
  • The linear strain-focal length relationship enables predictable optical control.
  • Magnetic and mechanical actuation are effective methods for tuning lens focal length.