激光与光电子学进展, 2019, 56 (13): 132201, 网络出版: 2019-07-11   

基于调频法的介电液体透镜研究 下载: 766次

Dielectrophoresis Liquid Lens Based on Frequency Modulation
作者单位
重庆理工大学药学与生物工程学院, 重庆, 400054
摘要
因液体透镜在成像、生物识别、光电和芯片实验室等方面具有广泛的应用前景,研制出一种基于调频法的介电效应液体透镜,通过调节输入电源信号频率实现对透镜焦距的控制,获得了频率、电压、接触角、焦距和透镜孔径间的变化关系。所研制的介电透镜施加的电压频率范围为0~20 kHz,其焦距可在6~8 cm间变化,透镜孔径变化范围为2~3.25 mm,透镜响应时间约为375 ms。本透镜具有结构简单、驱动快速、调节精确、能耗小、分辨率良好、动态范围大等优点。
Abstract
In recent years, the liquid lenses are widely used in imaging, biometrics, optoelectronics, and lab-on-a-chip. A liquid lens is successfully developed herein based on the frequency-modulated dielectrophoresis effect. The focal length of the lens is varied by adjusting the output frequency of the input power. The relationships among the frequency, voltage, contact angle, focal length, and lens aperture are obtained. When the applied voltage frequency of the dielectrophoresis lens is varied within 0-20 kHz, the focal length, lens aperture, and lens response time are 6-8 cm, 2-3.25 mm, and about 375 ms, respectively. The as-prepared lens has the advantages of a simple structure, fast driving, precise adjustment, low energy consumption, high resolution, and large dynamic range.

吕红艳, 崔建国. 基于调频法的介电液体透镜研究[J]. 激光与光电子学进展, 2019, 56(13): 132201. Hongyan Lü, Jianguo Cui. Dielectrophoresis Liquid Lens Based on Frequency Modulation[J]. Laser & Optoelectronics Progress, 2019, 56(13): 132201.

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