Patent ID: 8649102
Filing Date: 2014-02-11
Classification: G02B,Y10T

Abstract:
1. An optical electrowetting device comprising: a body comprising at least a first external surface and a first internal surface with a conical shape; a liquid-liquid interface between a first and a second immiscible liquids, the first liquid being a conducting liquid and the second liquid being an insulating liquid, wherein said liquid-liquid interface is able to move on said first internal surface by electrowetting effect; a first electrode in contact with the first liquid; a second electrode insulated from the first liquid by an insulating layer, said second electrode comprising a plurality of electrical conductive tracks to be connected to a voltage source and extending from said first external surface of the body to said first internal surface; a first layer covering the first internal surface of said body and being covered by said insulating layer, wherein the shape of the liquid-liquid interface is controllable by application of at least a first voltage between said first electrode and said plurality of electrical conductive tracks, and wherein said first layer is made of a resistive material having a surface resistivity from 75 kΩ to 500 kΩ.