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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：US20210349292A1
公开(公告)日：2021-11-11
申请号：US17383529
申请日：2021-07-23
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Ming-Ta CHOU , Chun-Hua TSAI
Abstract: A plastic barrel includes an inner portion and an outer portion. The inner portion defines an interior space. The inner portion includes, in order from an object side to an image side, an object-side opening, a plurality of inner annular surfaces and an image-side opening. The interior space is configured for accommodating an imaging lens assembly, and the imaging lens assembly includes a plurality of plastic lens elements. The outer portion surrounds the inner portion. The outer portion includes a mounting structure. The mounting structure is disposed on a surface of the outer portion. The mounting structure is injection molded for mounting a planar conductive element and a wiring element. The mounting structure includes at least three gate traces, and the three gate traces are located on a surface of the mounting structure.
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公开(公告)号：US20210136267A1
公开(公告)日：2021-05-06
申请号：US17146512
申请日：2021-01-12
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Te-Sheng TSENG , Wen-Hung HSU , Ming-Ta CHOU
Abstract: A photographing module includes a metal cover, a base, a lens portion and a leaf spring. The lens portion is displaceably disposed in an inner space. The leaf spring is assembled with the lens portion and includes an inner fixing portion, an outer fixing portion and an elastic portion. The inner fixing portion is assembled with the lens portion. The outer fixing portion contacts and is fixedly disposed with the metal cover. The elastic portion connects the inner fixing portion and the outer fixing portion. The leaf spring further includes a plurality of contact portions and a plurality of auxiliary elastic portions. Each of the auxiliary elastic portions connects the outer fixing portion and one of the contact portions. For the leaf spring, only the contact portions thereof contact side plates of the metal cover.
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公开(公告)号：US20210080686A1
公开(公告)日：2021-03-18
申请号：US17090981
申请日：2020-11-06
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Chun-Yi LU , Te-Sheng TSENG , Ming-Ta CHOU
IPC: G02B7/09 , H02K41/035 , G03B13/36 , G03B3/10
Abstract: 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.
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公开(公告)号：US10942422B2
公开(公告)日：2021-03-09
申请号：US16459781
申请日：2019-07-02
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Te-Sheng Tseng , Ming-Ta Chou , Wen-Hung Hsu
Abstract: A camera module includes a plastic carrier, an imaging lens assembly, a reflective element and a plurality of auto-focusing elements. The plastic carrier includes an inner portion and an outer portion, wherein an inner space is defined by the inner portion, and the outer portion includes at least one mounting structure. The imaging lens assembly is disposed in the inner space of the plastic carrier. The reflective element is for folding an image light by a reflective surface of the reflective element into the imaging lens assembly. The auto-focusing elements include at least two magnets and at least one wiring element, wherein the auto-focusing elements are for moving the plastic carrier along a second optical axis of the imaging lens assembly, and the magnets or the wiring element can be disposed on the mounting structure of the outer portion.
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Patent Agency Ranking
公开(公告)号：US20200089083A1
公开(公告)日：2020-03-19
申请号：US16441141
申请日：2019-06-14
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Te-Sheng TSENG , Ming-Ta CHOU , Wen-Hung HSU
Abstract: A camera module includes a metal yoke, a holding base, a plastic barrel, a plurality of plastic lens elements, a leaf spring pair and a coil element. The holding base is connected to the metal yoke and defines an inner space. The holding base has a through hole which is corresponding to an opening of the metal yoke. The plastic barrel is movably disposed in the inner space. The plastic lens elements are disposed in the plastic barrel. The leaf spring pair includes two leaf springs which are located on a same plane and connected to the plastic barrel. The coil element surrounds an outer surface of the plastic barrel and electrically connected to the leaf spring pair, wherein two ends of the coil element is connected to the leaf springs by a thermal pressing method.
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公开(公告)号：US20200018925A1
公开(公告)日：2020-01-16
申请号：US16426073
申请日：2019-05-30
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Ming-Ta CHOU , Chun-Hua TSAI
Abstract: A plastic barrel includes an inner portion and an outer portion. The inner portion defines an interior space. The inner portion includes, in order from an object side to an image side, an object-side opening, a plurality of inner annular surfaces and an image-side opening. The interior space is configured for accommodating an imaging lens assembly, and the imaging lens assembly includes a plurality of plastic lens elements. The outer portion surrounds the inner portion. The outer portion includes a mounting structure. The mounting structure is disposed on a surface of the outer portion. The mounting structure is injection molded for mounting a planar conductive element and a wiring element. The mounting structure includes at least three gate traces, and the three gate traces are located on a surface of the mounting structure.
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公开(公告)号：US20190162929A1
公开(公告)日：2019-05-30
申请号：US16104314
申请日：2018-08-17
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Te-Sheng TSENG , Wen-Hung HSU , Ming-Ta CHOU
IPC: G02B7/09 , H02K41/035 , G03B13/36 , G02B13/00 , H02K11/215
Abstract: A lens driving apparatus is for driving a lens assembly and includes a holder, a metal cover, a carrier, at least one detection magnet, at least one position detection unit, a coil and at least two driving magnets. The position detection unit is disposed on the holder, wherein the position detection unit is for detecting a displacement along a direction parallel to a central axis of the detection magnet. The holder further includes a plurality of terminal portions and a plurality of conductive portions. The terminal portions are extended outward from the holder along the direction parallel to the central axis. The conductive portions are exposed on a surface of the holder, wherein four of the conductive portions are arranged as a grid array of two rows and two columns, and the four of the conductive portions are disposed correspondingly to the position detection unit.
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公开(公告)号：US20180224625A1
公开(公告)日：2018-08-09
申请号：US15585403
申请日：2017-05-03
Applicant: LARGAN DIGITAL CO., LTD.
Inventor： Te-Sheng TSENG , Wen-Hung HSU , Yung-Chun KANG
CPC classification number: G02B7/09 , G02B7/021 , G02B27/017 , G03B13/34 , G03B2205/0069 , H04M1/0264 , H04N5/2253 , H04N5/2258
Abstract: A dual lens driving apparatus includes a holder, a metal yoke, a carrier, a coil, a first magnet, a first elastic element and a second elastic element. The metal yoke is corresponding to the holder and includes a front end which includes a plate surface and a plurality of step portions, and a level difference is between each of the step portions and the plate surface. The carrier is movably disposed in the metal yoke. The coil is disposed around the carrier. The first magnet is disposed in the metal yoke. The first elastic element is assembled on a side of the carrier facing the front end of the metal yoke. The second elastic element is assembled on another side of the carrier facing the holder.
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公开(公告)号：US12210206B2
公开(公告)日：2025-01-28
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 , 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.
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