公开(公告)号：US20210223506A1

公开(公告)日：2021-07-22

申请号：US17226196

申请日：2021-04-09

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Te-Sheng TSENG ,  Wen-Hung HSU ,  Ming-Ta CHOU

IPC: G02B7/09 ,  G02B27/64 ,  G02B7/02

Abstract: A lens assembly actuating module includes a holder, a metal yoke, a lens actuator and a Hall sensor. The holder includes a central opening, at least three metal connectors insert-molded with the holder, at least two metal terminals insert-molded with the holder, and a plurality of plated metal layers disposed on a surface of the holder. The metal yoke is coupled with the holder. The lens actuator is for carrying a lens unit including an optical axis. The lens actuator is movably disposed in the metal yoke. The lens actuator includes at least one elastic element and at least three metal hanging wires. The Hall sensor is disposed on one of the plated metal layers of the holder. The Hall sensor is for detecting a movement of the lens unit along a direction perpendicular to the optical axis.

公开(公告)号：US10976639B2

公开(公告)日：2021-04-13

申请号：US16663502

申请日：2019-10-25

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Te-Sheng Tseng ,  Ming-Ta Chou ,  Wen-Hung Hsu

IPC: G03B3/10 ,  H04N5/225 ,  G03B11/04 ,  G02B7/04

Abstract: A lens assembly driving module includes a base, a cover, a lens carrier and a damping agent. The cover is coupled to the base. The lens carrier is integrally formed with a plastic barrel into a coaxial unitary element which has an internal space for receiving at least one optical lens element and includes at least two protrusion portions located on one end of the coaxial unitary element close to the base. The damping agent is filled between the base and each of the protrusion portions. The protrusion portions are a part of the coaxial unitary element, and a distance in a direction perpendicular to an optical axis between the part of the coaxial unitary element and the internal space is a maximum distance among distances in the direction perpendicular to the optical axis between other parts of the coaxial unitary element and the internal space.

公开(公告)号：US20210088747A1

公开(公告)日：2021-03-25

申请号：US17009140

申请日：2020-09-01

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Te-Sheng TSENG ,  Wen-Hung HSU ,  Ming-Ta CHOU ,  Hao-Jan CHOU

IPC: G02B7/09 ,  G02B13/00 ,  G03B13/36 ,  H04N5/225 ,  G02B7/02

Abstract: A lens assembly module includes a base, a cover, a lens unit, an elastic element, at least two conductive elements, at least one AF coil element and at least two first magnetic elements. The cover is coupled to the base. The lens unit is movably disposed in the cover. The elastic element is coupled to the lens unit. The conductive elements are coupled to the lens unit. The AF coil element is disposed on the lens unit, and two ends of the AF coil element are electrically connected to the conductive elements, respectively. The first magnetic elements are disposed in the cover. A part of each of the extending structures is overlapped along a direction parallel to an optical axis and electrically connected to each conductive element. The AF coil element and the conductive elements are electrically connected by a welding method.

公开(公告)号：US20180372987A1

公开(公告)日：2018-12-27

申请号：US15789202

申请日：2017-10-20

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Te-Sheng TSENG ,  Wen-Hung HSU ,  Yung-Chun KANG

IPC: G02B7/09 ,  G03B13/36 ,  H02K41/035

CPC classification number: G02B7/09 ,  G03B3/10 ,  G03B5/00 ,  G03B13/36 ,  G03B2205/0007 ,  G03B2205/0069 ,  G03B2217/005 ,  H02K41/0356

Abstract: A lens driving apparatus is for driving a lens assembly and includes a base, a metal cover, a carrier, a first coil, at least one first magnet, at least one second magnet, a frame and a spring set. At least one lower leaf spring of the spring set includes a frame connecting section, a carrier connecting section and a resilient section. The carrier connecting section and the second magnet are arranged along the first direction. The carrier connecting section includes an opening portion and a shielding portion, and the opening portion and the shielding portion both corresponding to the second magnet along the first direction are respectively for a part of the second magnet to be exposed through the opening portion and another part of the second magnet to be shielded by the shielding portion.

公开(公告)号：US20250123460A1

公开(公告)日：2025-04-17

申请号：US18989829

申请日：2024-12-20

Applicant: LARGAN DIGITAL CO.,LTD.

Inventor： Yu Chen LAI ,  Ming-Ta CHOU ,  Te-Sheng TSENG

IPC: G02B7/02 ,  G02B7/08 ,  G03B5/02 ,  H02K41/035 ,  H04N23/51

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.

公开(公告)号：US20250093616A1

公开(公告)日：2025-03-20

申请号：US18961060

申请日：2024-11-26

Applicant: LARGAN DIGITAL CO.,LTD.

Inventor： Heng Yi SU ,  Ming-Ta CHOU ,  Wen-Hung HSU ,  Te-Sheng TSENG

IPC: G02B7/10 ,  G01D5/14 ,  G02B13/00 ,  H05K1/02

Abstract: An imaging lens module includes an imaging lens unit, an optical folding component and a sensing magnet group. The imaging lens unit has an optical axis. The optical folding component is configured to fold an incident optical path into the imaging lens unit to coincide with the optical axis. The sensing magnet group includes two sensing magnets that are sequentially disposed on the imaging lens unit along a direction in parallel with the optical axis. The sensing magnets are located at the same side with respect to a reference plane that passes through the optical axis and has a normal direction perpendicular to the optical axis. When the sensing magnets are observed from the direction in parallel with the optical axis, images of the sensing magnets are at least partially overlapped. Two adjacent magnetic poles of the sensing magnets are like poles between which there is a repulsive force.

公开(公告)号：US12189206B2

公开(公告)日：2025-01-07

申请号：US18132920

申请日：2023-04-10

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Heng Yi Su ,  Ming-Ta Chou ,  Te-Sheng Tseng

IPC: G02B27/64 ,  G02B7/08 ,  G03B5/00 ,  H04N23/68

Abstract: An imaging camera driving module includes a lens unit, a driving mechanism, a sensing mechanism and an image surface. At least a part of the driving mechanism is coupled to the lens unit to drive the lens unit to move in a direction parallel to the optical axis. The sensing mechanism includes sensing magnets fixed to the lens unit and sensing elements not facing the driving mechanism. The sensing elements are disposed on an image side of the imaging lens assembly of the lens unit and corresponding to the sensing magnets. The sensing elements are configured to detect a relative position of the sensing magnets. The image surface is disposed on the image side of the imaging lens assembly, and the optical axis passes through the image surface. The sensing mechanism is configured to detect a tilt of the optical axis with respect to the central axis.

公开(公告)号：US20250004242A1

公开(公告)日：2025-01-02

申请号：US18884417

申请日：2024-09-13

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Hao-Jan CHEN ,  Heng-Yi SU ,  Ming-Ta CHOU ,  Chen-Yi HUANG ,  Ming-Shun CHANG

IPC: G02B7/08 ,  G02B7/09 ,  G02B13/00 ,  G03B5/02 ,  G03B17/02

Abstract: An imaging lens driving module includes a lens carrier, a molded receiving base, a rolling element, a molded frame element and a driving mechanism. The lens carrier defines an optical axis. The molded receiving base is configured to receive the lens carrier. The rolling element is disposed between the lens carrier and the molded receiving base, and the lens carrier is allowed to be displaceable along the optical axis and relatively to the molded receiving base. The molded frame element is coupled with the molded receiving base for defining an inner space to receive the lens carrier. The driving mechanism drives the lens carrier displaceable along the optical axis, and includes a driving magnet and a driving coil, wherein the driving magnet is disposed on the lens carrier, the driving coil is corresponding to and faces towards the driving magnet.

公开(公告)号：US12066691B2

公开(公告)日：2024-08-20

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

IPC: G02B7/09 ,  G03B13/36

CPC classification number: G02B7/09 ,  G03B13/36

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.

公开(公告)号：US11899273B2

公开(公告)日：2024-02-13

申请号：US17970304

申请日：2022-10-20

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Chun-Hua Tsai ,  Ming-Ta Chou ,  Ming-Shun Chang

IPC: G02B7/09 ,  G02B7/04 ,  G02B30/00

CPC classification number: G02B7/09 ,  G02B7/04 ,  G02B30/00

Abstract: An imaging lens module with auto focus function includes an imaging lens assembly, an electromagnetic driving component assembly and a lens carrier. The imaging lens assembly has an optical axis. The electromagnetic driving component assembly drives the imaging lens assembly to move in a direction parallel to the optical axis by a Lorentz force. The imaging lens assembly is mounted to the lens carrier such that the imaging lens assembly can be wholly driven by the Lorentz force. The lens carrier includes an object-side part, a mounting structure and a plurality of plate portions. The object-side part includes a tip-end minimal aperture configured for light to travel through; and a tapered surface which surrounds an area tapered off from image side to object side. The mounting structure and the plate portions are configured for at least a part of the electromagnetic driving component assembly to be mounted thereto.