0000000000946757

AUTHOR

Falko Preller

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Iris-Like Tunable Aperture Employing Liquid-Crystal Elastomers

2014

A liquid-crystal elastomer (LCE) iris inspired by the human eye is demonstrated. With integrated polyimide-based platinum heaters, the LCE material is thermally actuated. The radial contraction direction, similar to a mammalian iris, is imprinted to the LCE by a custom-designed magnetic field. Actuation of the device is reproducible over multiple cycles and controllable at intermediate contraction states.

Materials scienceAperturePlatinum CompoundsLiquid crystal elastomerEyeElastomerBenzoatesOpticsBiomimetic MaterialsmedicineHumansGeneral Materials Sciencebusiness.industryMechanical Engineeringfemale genital diseases and pregnancy complicationsLiquid CrystalsMagnetic fieldMagnetic Fieldsmedicine.anatomical_structureAcrylatesElastomersMechanics of MaterialsHuman eyeIRIS (biosensor)businessMagnetic orientationPolyimideAdvanced Materials
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