材料科学
透射率
光学
电介质
不透明度
光圈(计算机存储器)
振膜(声学)
IRIS(生物传感器)
电极
光电子学
液体电介质
可见光谱
电气工程
化学
物理
计算机安全
物理化学
生物识别
计算机科学
声学
扬声器
工程类
作者
Chi-Chun Tsai,J. Andrew Yeh
出处
期刊:Optics Letters
[The Optical Society]
日期:2010-07-15
卷期号:35 (14): 2484-2484
被引量:77
摘要
We demonstrate a liquid iris diaphragm using dielectric force, enabling its aperture to vary from 4mm at the resting state to 1.5mm at 160Vrms. The liquid iris is a packaged optical component comprised of transparent oil, opaque ink, and a set of driving electrodes on a glass substrate. The iris aperture shrinks with the dielectric force, which is exerted on the interface between the two nonconductive liquids. The transmittance was measured to exceed 85% with no antireflection coatings over the spectrum of visible light. The maximum electric power consumed is measured to be 5.7mW.
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