Largan Precision Co., Ltd.

Largan Digital Co., Ltd.

Chun-Yi Lu

Te-Sheng Tseng

Wen-Hung Hsu

Ming-Ta Chou

A lens driving apparatus includes a holder, a cover, a carrier, a first magnet, a coil, a spring, two second magnets and a hall 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 connected to an inner side of the cover. The coil is wound around an outer side of the carrier, and adjacent to the first magnet. The spring is coupled to the carrier. The second magnets are disposed on one end of the carrier which is toward the holder. The hall sensor is 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 hall sensor and the second magnet which is detected.

Lens driving apparatus

A lens assembly driving module includes a holder, a metal yoke, a lens unit, a magnet set, a coil, at least one elastic element and at least one damper agent. The metal yoke is coupled with the holder and includes a through hole and at least one extending structure. The extending structure is disposed around the through hole and extends along a direction from the through hole to the holder. The lens unit is movably disposed in the metal yoke. The lens unit includes an optical axis and at least one notch structure. The notch structure is disposed in an outer peripheral area of the lens unit and is corresponding to the extending structure. The damper agent is disposed between the extending structure of the metal yoke and the notch structure of the lens unit. The damper agent is applied to damp a movement of the lens unit.

Lens assembly driving module, photographing system and cell phone device

A lens assembly driving apparatus includes a holder, a metal yoke, a carrier, a lens assembly, a magnet set, a coil and at least one elastic element. The metal yoke is coupled with the holder. The carrier is movably disposed in the metal yoke. The carrier includes an object-side portion and at least three inner surfaces. The object-side portion has an object-side central hole. The lens assembly has an optical axis. The optical axis is corresponding to the object-side central hole. The lens assembly is coupled in the carrier. A movement of the lens assembly relative to the holder is according to a movement of the carrier. The magnet set includes only two magnets. The coil surrounds and is fixed at an exterior of the carrier. The elastic element is coupled with the carrier and the holder.

Lens assembly driving apparatus, photographing module and electronic device

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.

Lens driving module having first sensor and second magnet in alignment

Lens driving module having hall sensor and magnet in alignment along a direction parallel to optical axis

Lens driving module having hall sensor aligned with second magnet for determining displacement parallel to optical axis

A lens actuating module includes a holder, a cover, a lens and a lens actuator. The holder includes an opening hole and at least three first connecting portions. The cover is coupled to the holder and includes a through hole correspondent to the opening hole. The lens with an optical axis is correspondent to the through hole. The lens actuator is movably disposed in the cover and includes at least one elastic member and at least three suspension wires. The elastic member includes at least three second connecting portions. A longitudinal direction of each of the suspension wires is parallel to the optical axis. Two ends of each of the suspension wires are fixedly connected with one of the first connecting portions and one of the second connecting portions, respectively. More than 95% of each of the suspension wires along the longitudinal direction has a rectangular cross-section.

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Taichung, Taiwan

Chun-Yi Lu