Drive source of a camera lens
AssigneeMicro-Mototech Corp.
InventorCheng-Fang Hsiao
Life of this patent
Estimating the term…
Abstract
A drive source of camera lens designed with built-in drive motor inside the camera lens mount delivers benefits of eliminating runout occurring during the telescopic movement of the telescopic lens, and simplifying the parts assembly process. The drive source of camera lens comprises of coil stator installed directly to the inside of the camera lens mount, the spindle of the magnetic ring rotor screws onto the rotation-proof telescopic lens, so as to rotate the spindle of the magnetic ring rotor to drive the telescopic lens with external thread. The present invention allows the camera lens to acquire built-in drive source, eliminates the runout occurs during the drive of telescopic lens, and simplifies the assembly process.
Claims4
A drive source of camera lens comprises camera lens mount and multiple telescopic lens, whereas the drive source is comprised of a stepper motor made with coil stator with multiple pole teeth and the magnetic ring rotor. The camera lens mount is built with coil stator inside, and the magnetic ring rotor is affixed to the designated space of the coil stator. The external thread of the telescopic lens is screwed with the internal thread inside the spindle of the magnetic ring rotor, and the limit traveler outside of the telescopic lens couples with the guide block of the camera lens mount to form a rotation-proof device, so as to rotate magnetic ring rotor as a result to the reaction to coil stator. The internal thread inside the spindle drives the telescopic lens with external thread to form a camera lens module with built-in drive source.
Dependencies are inferred from the claim text.