| 摘要 |
PURPOSE:To attain size reduction and to improve a response speed by storing a constituent component 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 put in the lens main body 30 and has a solenoid 34 and a magnet so that one is inserted movably to and away from the other in the directions (A-B) of the optical axis, the focus lens 33 which is supported by the solenoid 34 and magnet 35, and the lens driving mechanism which has a driving means for moving and controlling the focus lens 33 in the direction AB by driving and controlling the linear motor. This lens driving mechanism is controlled according to input image information of an image pickup element 37 provided to the lens main body 30. Consequently, constituent components of a speed reduction mechanism, etc., are reduced to reduce the size and weight, and the operation is speeded up to improve the response speed. |
