| 摘要 |
An electrowetting based optical element comprising: a substrate (2) and a deformable membrane (1) mechanically coupled to said substrate, said substrate and membrane defining a fluid chamber, an insulating liquid (5) and an electrically conductive liquid (4) immiscible with said insulating liquid, one of the liquids filling said fluid chamber andthe other liquid being arranged so as to form one or a plurality of liquid bridges between the substrate and the membrane to ensure said coupling, the shape of the at least one liquid bridge being controlled by electrowetting under the application of at least one voltage, resulting in a local deformation of the membrane.
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