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公开(公告)号：US20240369806A1
公开(公告)日：2024-11-07
申请号：US18774463
申请日：2024-07-16
Applicant: LARGAN DIGITAL CO.,LTD.
Inventor： Hao Jan CHEN , Yu Chen LAI , Ming-Ta CHOU , Te-Sheng TSENG
Abstract: A lens driving module is configured to provide an imaging lens system with auto-focus functionality. The imaging lens system is disposed between a preloading element and a driving base of the lens driving module. The preloading element includes an injection molded part and a ferromagnetic part partially embedded in the injection molded part. A rollable element is disposed in each of mounting structures of the injection molded part and in contact with a displaceable lens carrier of the imaging lens system. The ferromagnetic part and a magnet disposed on the displaceable lens carrier together generate a magnetic attraction force, such that the displaceable lens carrier exerts a preloading force on the rollable element. The driving base includes a driving coil and an electrical wiring pattern. The driving coil corresponds to the magnet for generating a driving force to drive the displaceable lens carrier to move along the optical axis.
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公开(公告)号：US20220159187A1
公开(公告)日：2022-05-19
申请号：US17177640
申请日：2021-02-17
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Yu Chen LAI , Ming-Ta CHOU , Liang Chieh WENG , Ming-Shun CHANG
Abstract: An actuator is configured to drive an imaging lens system. The actuator includes a frame portion configured to accommodate the imaging lens system, a supporting portion disposed on the frame portion, a driving portion configured to drive the imaging lens system to move, an optical mark structure disposed on part of the frame portion, the supporting portion or the driving portion and a liquid disposed on the optical mark structure. The supporting portion is configured to support the imaging lens system and give the imaging lens system a degree of freedom of movement with respect to the frame portion. The optical mark structure includes a plurality of optical mark units arranged side by side. The liquid is in physical contact with the imaging lens system, the frame portion, the supporting portion or the driving portion that is adjacent to the optical mark structure.
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公开(公告)号：US20220244486A1
公开(公告)日：2022-08-04
申请号：US17239228
申请日：2021-04-23
Applicant: LARGAN DIGITAL CO.,LTD.
Inventor： Hao Jan CHEN , Yu Chen LAI , Ming-Ta CHOU , Te-Sheng TSENG
Abstract: A lens driving module is configured to provide an imaging lens system with auto-focus functionality. The imaging lens system is disposed between a preloading element and a driving base of the lens driving module. The preloading element includes an injection molded part and a ferromagnetic part partially embedded in the injection molded part. A rollable element is disposed in each of mounting structures of the injection molded part and in contact with a displaceable lens carrier of the imaging lens system. The ferromagnetic part and a magnet disposed on the displaceable lens carrier together generate a magnetic attraction force, such that the displaceable lens carrier exerts a preloading force on the rollable element. The driving base includes a driving coil and an electrical wiring pattern. The driving coil corresponds to the magnet for generating a driving force to drive the displaceable lens carrier to move along the optical axis.
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公开(公告)号：US20230003963A1
公开(公告)日：2023-01-05
申请号：US17458050
申请日：2021-08-26
Applicant: LARGAN DIGITAL CO.,LTD.
Inventor： Yu Chen LAI , Ming-Ta CHOU , Te-Sheng TSENG
IPC: G02B7/02 , G02B7/08 , H04N5/225 , H02K41/035 , G03B5/02
Abstract: An optical element driving unit includes a stationary body, a carrier, a supporting mechanism and an electromagnetic driving assembly. The supporting mechanism is connected to the carrier and the stationary body and provides the carrier with a degree of freedom of movement relative to the stationary body. The carrier can be driven to move by the electromagnetic driving assembly. The electromagnetic driving assembly includes a driving coil, a driving magnet and a ferromagnetic element. The driving coil is disposed on the carrier. The driving magnet is disposed on the stationary body. The ferromagnetic element is one-piece formed and embedded in the carrier, and the ferromagnetic element includes a magnetic field guiding part and an electrical connection part. The magnetic field guiding part faces the driving coil and/or the driving magnet. The electrical connection part is exposed on a surface of the carrier and electrically connected to the driving coil.
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