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A novel configuration of variable-focus liquid lens based on electrowetting-on-dielectric technique is presented, which consists of a glass slide growing a conductive indium tin oxide (ITO) film and a hydrophobic dielectric film, a hollow conical metal ring suspended right above, a gap between the slide and the ring, and the lens liquid (water). By changing the voltage applied to grounded metal ring...
In this paper, a new type of liquid lens based on electrowetting on dielectric (EWOD) is demonstrated. It consists of a transparent liquid droplet as lens on a hydrophobic dielectric film, a patterned indium tin oxide (ITO) film as a set of transparent electrodes underneath and a glass substrate. By changing the applied voltage on the set of electrodes, the shape and location of the droplet can be...
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