The invention discloses an
electrowetting zoom lens based on
ion liquid, comprising a cylindrical shell, a
metal electrode, a transparent
electrode, an insulating membrane, a hydrophobic membrane, a glass top cover, a glass bottom cover, conducting liquid and filling liquid, wherein the conducting liquid can be one or two or combination of a plurality of
ion liquids. Beside having the advantages of general
zoom liquid lenses, the
electrowetting zoom lens based on
ion liquid further has the advantages of lower
voltage required for implementing focusing, capability of regulating
focal length change range through changing the type of the ion liquid, capability of adapting to drastic change of external temperature, and extreme conditions, such as low temperature, high temperature and the like, capability of being applied to near-
infrared imaging and the like.