激光与光电子学进展, 2012, 49 (4): 041201, 网络出版: 2012-01-05  

50 Hz交流电控制的可变焦液体透镜

Variable-Focus Liquid Lens Controlled by 50 Hz AC Electric Field
作者单位
南京邮电大学光电工程学院 微流控光学技术研究中心, 江苏 南京 210003
摘要
研究了采用“金属导电基底/Parylene 介电层/Teflon疏水层”透镜内芯材料的介电上电润湿(EWOD)特性。实验获得了导电液滴分别在直流电(DC)和50 Hz交流电(AC)控制下的接触角随电压变化的曲线。实验结果表明,为达到DC电源控制下的液滴的EWOD相同效果,使用低频的AC电压应考虑其瞬时最大值而不是有效值(均方根值)。目前已经制作出基于50 Hz交流电控制的可变焦液体透镜并进行加电压变焦实验。给出了该液体透镜的焦距与电压之间的变化曲线,实验结果与上述分析一致。
Abstract
The property of electrowetting on dielectric (EWOD) on the core-surface of variable-focus liquid lens with specific “conductive metal/insulation film/hydrophobic” material is one of the important research topics in optofluidics. Contact angle versus applied voltage (DC and AC) curve of conductive liquid droplets is obtained by experiment. Experimental results show that, to achieve the same effect as that obtained with DC power, what should be considered is the instantaneous maximum rather than the effective value (root-mean-square) when using low-frequency AC voltage. The variable-focus experiment of the variable-focus lens under the applied 50 Hz AC voltage is performed. A curve between the focal length of the variable-focus lens and the applied voltage is given. The experiment result agrees very well with the above analysis.

陈陶, 梁忠诚, 徐荣青. 50 Hz交流电控制的可变焦液体透镜[J]. 激光与光电子学进展, 2012, 49(4): 041201. Chen Tao, Liang Zhongcheng, Xu Rongqing. Variable-Focus Liquid Lens Controlled by 50 Hz AC Electric Field[J]. Laser & Optoelectronics Progress, 2012, 49(4): 041201.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!