The variable-focus liquid microlens based on electrowetting on dielectric (EWOD), which has the outstanding advantages of simple structures, low power dissipation, easily tunable of focal length, etc., is most attractive.

• 在提出的各种新型的可变焦微透镜技术中，基于介质上电润湿的微流体透镜由于其结构简单、功耗低、调节焦距方便等众多突出的优点而被人们所重视。