| 摘要 |
A lens driver moving a lens perpendicularly to optical axis, the lens driver including: fixed member; movable member holding the lens; spacer interposed therebetween with the members being movable to each other perpendicularly to optical axis; biasing unit biasing the movable member toward the fixed member; detector for detecting position of the movable member relative to the fixed member in plane perpendicular to optical axis; driver driving the movable member relative to the fixed member perpendicularly to optical axis; controller controlling the driver based on position of the movable member; and range definer defining: movable position having large movable range between the members in the perpendicular plane; and fixed position having small movable range between the members in the perpendicular plane based on rotation position about optical axis where sliding friction is generated between the spacer and one of the members, or between the driving unit and the movable member. |
