LENS DRIVING MODULE

摘要

A lens driving module includes a holder, a cover, a carrier, at least one first magnet, a first coil, at least two second magnets, at least one first sensor and at least one second sensor. The holder includes an opening hole. The cover is made of metal material and coupled to the holder. The carrier is movably disposed in the cover and for coupling to a lens. The first magnet is movably disposed in the cover. The first coil is wound around an outer side of the carrier. The second magnets are disposed on one end of the carrier. The first sensor is for detecting a magnetic field of the second magnets. The second sensor is for detecting a magnetic field of the first magnet.

主权项

1. A lens driving module, comprising:
a holder, comprising an opening hole; a cover made of metal material and coupled to the holder; a carrier movably disposed in the cover, and for coupling to a lens, wherein a moving direction of the carrier comprises a first direction which is parallel to an optical axis of the lens; at least one first magnet movably disposed in the cover, wherein a moving direction of the first magnet comprises a second direction which is orthogonal to the optical axis of the lens; a first coil wound around an outer side of the carrier, and adjacent to the first magnet; at least two second magnets disposed on one end of the carrier which is toward the holder; at least one first sensor which is a Hall sensor, and for detecting a magnetic field of any one of the second magnets, wherein the magnetic field is varied according to a relative displacement between the first sensor and the second magnet which is detected; and at least one second sensor for detecting a magnetic field of the first magnet, wherein the magnetic field is varied according to a relative displacement between the second sensor and the first magnet which is detected.