標題: Electrically actuated liquid iris
作者: Xu, Miao
Ren, Hongwen
Lin, Yi-Hsin
光電工程學系
Department of Photonics
公開日期: 1-Mar-2015
摘要: We report an adaptive iris using dielectric liquids and a radial-interdigitated electrode. A black liquid is confined by a circular gasket with a donut shape. The surrounding of the black liquid is filled with an immiscible liquid. In the relaxing state, the black liquid obtains the largest clear aperture. By applying a voltage, the surface of the black liquid is stretched by the generated dielectric force, resulting in a reduction of its aperture. For the demonstrated iris, the diameter of the aperture can be changed from similar to 4.7 mm to similar to 1.2 mm when the voltage is applied from 0 to 70 V-rms. The aperture ratio is similar to 94%. Owing to the radial-interdigitated electrode, the aperture size of the iris can be effectively switched with a reasonably fast response time. The optical switch is polarization-insensitive. The potential applications of our iris are light shutters, optical attenuators, biomimicry, and wearable devices. (C) 2015 Optical Society of America
URI: http://dx.doi.org/10.1364/OL.40.000831
http://hdl.handle.net/11536/124560
ISSN: 0146-9592
DOI: 10.1364/OL.40.000831
期刊: OPTICS LETTERS
Volume: 40
起始頁: 831
結束頁: 834
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