| 摘要 |
An electrowetting lens is provided to form a cubic image regardless of the position of an observer by controlling the optical axis according to the position of the observer. In an electrowetting lens(30) having a substrate(31), a dielectric barrier(34) is set up on the substrate and formed in the shape of a cylinder or a polygonal cylinder having surfaces(34a,34b,34a',34b') facing each other. A hydrophobic coating layer is formed on the inner wall of the dielectric barrier. Polar and non-polar solutions(38,39) are filled in the dielectric barrier. First and second lower electrodes(32,33) contact with the polar solution through the lower part of the dielectric barrier. The first and second lower electrodes face each other. A split electrode is disposed in the surface of the dielectric barrier. The split electrode comprises first and second split electrodes(36,37) arranged in the surfaces of the dielectric barrier facing each other. The first and second split electrodes are split into plural electrode cells(361-36n,371-37n) according to the height direction of the dielectric barrier.
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