| 摘要 |
A compact and substantially achromatic optical lens system ( 100, 200 ) comprising an electrowetting lens ( 104, 204 ) is provided. The optical lens system is using an electrowetting lens in which at least one of the entrance window surface ( 117, 217 ) or exit window surfaces ( 219 ), being in contact with one of the fluids ( 112, 212, 113, 213 ), has a curvature. When the sign of the curvature of that surface has the same sign as the curvature of the meniscus when no voltage is applied, a low building height is achieved. The optical element ( 104, 204 ) not only acts as a focussing or zooming device, but that it also acts as an aberration reduction element for the other elements in the optical lens system ( 100, 200 ). |
