| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens suitable for a compact camera. SOLUTION: The zoom lens 60 includes, from the object side to the image side, a front lens group 72, controllable lens groups 62 and 66, and a rear lens group 74. The controllable lens groups 62 and 66 comprise a voltage-controlled electrowetting device, which contains a first fluid A and a second fluid B having different refractive indices, and includes at least two first fluid-second fluid interfaces. The curvatures, and thus the lens power, of these interfaces can be changed independently by supplying voltages to electrodes of the device, so that no mechanical movement of lens elements is needed. COPYRIGHT: (C)2010,JPO&INPIT |
