[논문]Multifunctional liquid lens for variable focus and aperture

Lee, Jeongmin; Park, Yuna; Chung, Sang Kug

doi:10.1016/j.sna.2019.01.014

Multifunctional liquid lens for variable focus and aperture

Sensors and actuators. A, Physical, v.287, 2019년, pp.177 - 184

Lee, Jeongmin (Corresponding author.) , Park, Yuna , Chung, Sang Kug

Abstract ▼ AI-Helper

Abstract In this paper, we present a novel multifunctional liquid lens (MLL) for high-performance miniature cameras. The proposed MLL firstly offers concurrent variable-focus and variable-aperture functions in a single lens system solely using electrowetting-on-dielectric (EWOD) actuation. To perform both optical functions, the MLL employs two immiscible liquids and controls liquid–liquid interfaces directly through the application of voltage. The performances of both optical functions are experimentally verified by using a prototype of the MLL. Finally, as proof of concept, the simultaneous operation of the variable-focus and variable-aperture functions are demonstrated. The MLL has not only a wide range of tunability but also a simple design structure to be easily miniaturized for camera modules embedded in smart mobile devices and biomedical imaging systems. Highlights This paper presents a multifunctional liquid lens (MLL) for miniature camera modules. The MLL provides concurrent variable-focus and variable-aperture functions. Both optical functions are performed in a single module based solely on EWOD actuation. The MLL not only offers a simple design structure but also covers a wide range of tunability. Graphical abstract [DISPLAY OMISSION]

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Multifunctional liquid lens for variable focus and aperture

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Multifunctional liquid lens for variable focus and aperture

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