| 摘要 |
A structure for a voice coil motor providing controllable lens tilt capability. The voice coil motor structure comprises a lens mount for fixedly mounting a lens (12), a focusing coil (6), a deflecting coil (5, 7) and magnets (8-11), wherein the focusing coil (6) and the deflecting coil (5, 7) are respectively and fixedly sleeved on the outer side of the lens mount (12). The magnets (8-11) are distributed around the focusing coil (6) and the deflecting coil (5, 7) to allow the focusing coil (6) to interact with the magnets (8-11), so that the deflecting coil (5, 7) drives the lens mount (12) to move front and back to realize lens focusing. The deflecting coil (5, 7) is interacted with the magnets (8-11) to allow the deflecting coil (5, 7) to drive the lens mount (12) to tilt and realize lens shift. By virtue of the structure, the focusing and controllable tilting angle of the lens can be realized at the same time. The three-coil structure enables the camera to keep small volume and easy to be produced at large scale; impedance of coils is easy to be matched with a motor drive circuit; the structure can be widely applied to the current smart cell phones to provide a shooting function same to the medium-end or high-end digital camera. |
