Iris-Like Tunable Aperture Employing Liquid-Crystal Elastomers

被引：215
作者：
Schuhladen, Stefan [1 ]
Preller, Falko [1 ]
Rix, Richard [2 ]
Petsch, Sebastian [1 ]
Zentel, Rudolf [2 ]
Zappe, Hans [1 ]
机构：
[1] Univ Freiburg, Dept Microsyst Engn, Gisela & Erwin Sick Chair Microopt, D-79110 Freiburg, Germany
[2] Johannes Gutenberg Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany
来源：
ADVANCED MATERIALS | 2014年 / 26卷 / 42期
关键词：
liquid-crystal elastomers; magnetic orientation; tunable apertures; radial actuation; irises; POLYMER NETWORKS; ACTUATORS;
D O I：
10.1002/adma.201402878
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：7247 / 7251
页数：5
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