Research on surface free energy of electrowetting liquid zoom lens

Cunhua Zhao; Gaoqi Lu; Daling Wei; Xinhua Hong; Dongqing Cui; Changliu Gao

doi:10.1117/12.900142

18 August 2011 Research on surface free energy of electrowetting liquid zoom lens

Cunhua Zhao, Gaoqi Lu, Daling Wei, Xinhua Hong, Dongqing Cui, Changliu Gao

Proceedings Volume 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications; 81941G (2011) https://doi.org/10.1117/12.900142
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Zoom imaging systems have the tendencies of miniaturization or complication so the traditional glass / plastic lenses can't meet the needs. Therefore, a new method, liquid lens is put forward which realizes zoom by changing the shape of liquid surface. liquid zoom lenses have many merits such as smaller volume, lighter weight, controlled zoom, faster response, higher transmission, lower energy consumption and so on. Liquid zoom lenses have wide applications in mobile phones, digital cameras and other small imaging system. The electrowetting phenomenon was reviewed firstly and then the influence of the exerted voltage to the contact angle was analysed in electrowetting effect. At last, the surface free energy of cone-type double liquid zoom lens was researched via the energy minimization principle. The research of surface free energy offers important theoretic dependence for designing liquid zoom lens.

Citation Download Citation

Cunhua Zhao, Gaoqi Lu, Daling Wei, Xinhua Hong, Dongqing Cui, and Changliu Gao "Research on surface free energy of electrowetting liquid zoom lens", Proc. SPIE 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, 81941G (18 August 2011); https://doi.org/10.1117/12.900142

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