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0~20kHz,其焦距可在6~8cm间变化,透镜孔径变化范围为2~3.25mm,透镜响应时间约为375ms。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。
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 m m , 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.
作者
吕红艳
崔建国
Lü Hongyan;Cui Jianguo(College of Pharmacy and Bioengineering,Chongqing University of Technology,Chongqing 400054,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第13期201-206,共6页
Laser & Optoelectronics Progress
基金
国家科技支撑计划项目(2015BAI01B14)
重庆市高等教育教学改革研究一般项目(173114)
重庆理工大学研究生教育优质课程项目资助(yyk2017106)
重庆市技术创新与应用示范(社会民生类)一般项目(cstc2018jscx-msyb0290)
关键词
光学设计
液体透镜
介电效应
调频法
焦距
optical design
liquid lens
dielectrophoresis
frequency modulation method
focal length
