| 摘要 |
PURPOSE:To attain size reduction and to improve a response speed by storing constituent components including a lens driving mechanism constituted so as to move and control a focus lens directly in the directions of the optical axis in a lens main body. CONSTITUTION:This device is equipped with a linear motor which is stored in the lens main body 30 and has a linear motor having plural successive solenoids 34 and 35 and a magnet 36 so that one is inserted movably to and away from the other in the optical axis directions (A-B directions), the focus lens 33 which is supported by the former between the solenoids 34 and 35 and magnet 36, and the lens driving mechanism having a driving means for moving and controlling the focus lens 33 in the A-B directions by driving and controlling the linear motor. Then this lens driving mechanism is controlled according to the input image information of an image pickup element 38 provided to the lens main body 30. Consequently, the constituent components such as a speed reducing mechanism are reduced to reduce the size and weight, and the operation is speeded up to improve the response speed. |
