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    Image system lens assembly, image capturing unit and electronic device
    31.
    发明授权
    Image system lens assembly, image capturing unit and electronic device 有权

    公开(公告)号：US12210143B2

    公开(公告)日：2025-01-28

    申请号：US17986790

    申请日：2022-11-14

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Hsiang-Chi Tang ,  Tzu-Chieh Kuo

    IPC: G02B15/14 ,  G03B30/00

    Abstract: An image system lens assembly includes three lens groups including five lens elements. The three lens groups are, in order from an object side to an image side: first, second and third lens groups. The five lens elements are, in order from the object side to the image side: first, second, third, fourth and fifth lens elements. A zooming process is performed by changing axial distances between the three lens groups. The image system lens assembly has a long focal length end and a short focal length end. At least one surface of at least one lens element has an inflection point in an optically effective area thereof when the image system lens assembly is at the long focal length end and the short focal length end. The second lens group is moved relative to the first lens group along an optical axis in the zooming process.

    Optical imaging lens assembly, image capturing unit and electronic device
    32.
    发明授权
    Optical imaging lens assembly, image capturing unit and electronic device 有权

    公开(公告)号：US11988945B2

    公开(公告)日：2024-05-21

    申请号：US17827580

    申请日：2022-05-27

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Po-Lun Hsu ,  Tzu-Chieh Kuo

    IPC: G02B13/00 ,  G02B15/15 ,  G03B5/02 ,  G03B17/17

    CPC classification number: G03B17/17 ,  G02B13/0025 ,  G02B15/15 ,  G03B5/02 ,  G03B2205/0046

    Abstract: An optical imaging lens assembly having a zooming function includes, in order from an object side to an image side along an optical path: a reflection group and a lens group. The reflection group includes a prism having an object-side surface being convex. The prism includes a reflection surface configured to reflect an imaging light passing through the object-side surface of the prism and send the imaging light to an image-side surface of the prism. The lens group includes at least three lens elements arranged along the optical path, and each of the at least three lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The lens group includes a movable group, and the movable group moves along a direction parallel to an optical axis in a zooming process.

    Photographing optical lens assembly, imaging apparatus and electronic device
    35.
    发明授权
    Photographing optical lens assembly, imaging apparatus and electronic device 有权

    公开(公告)号：US11927729B2

    公开(公告)日：2024-03-12

    申请号：US17465995

    申请日：2021-09-03

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh Kuo

    IPC: G02B3/02 ,  G02B9/64 ,  G02B13/00 ,  G02B13/18

    CPC classification number: G02B13/0045 ,  G02B9/64 ,  G02B13/18

    Abstract: A photographing optical lens assembly includes eight lens elements, the eight lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side. At least one surface of the object-side surface and the image-side surface of at least one lens element of the photographing optical lens assembly is aspheric and includes at least one inflection point.

    Image capturing lens system, image capturing unit and electronic device
    36.
    发明授权
    Image capturing lens system, image capturing unit and electronic device 有权

    公开(公告)号：US11630289B2

    公开(公告)日：2023-04-18

    申请号：US17066414

    申请日：2020-10-08

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Hsiang-Chi Tang ,  Tzu-Chieh Kuo

    IPC: G02B15/14 ,  G02B13/02 ,  G02B27/00 ,  G02B15/20 ,  G02B13/00

    Abstract: An image capturing lens system includes three lens groups including five lens elements. The three lens groups are, in order from an object side to an image side: first, second and third lens groups. The five lens elements are, in order from the object side to the image side: first, second, third, fourth and fifth lens elements. The first lens element has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. At least one lens element has an inflection point. A focal length of the image capturing lens system is varied by changing axial distances between the three lens groups in a zooming process. The image capturing lens system has a long-focal-length end and a short-focal-length end. The second lens group is moved relative to the first lens group along an optical axis in the zooming process.

    Optical photographing lens assembly, image capturing unit and electronic device
    37.
    发明授权
    Optical photographing lens assembly, image capturing unit and electronic device 有权

    公开(公告)号：US11525981B2

    公开(公告)日：2022-12-13

    申请号：US17118435

    申请日：2020-12-10

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Cheng-Chen Lin ,  Yu-Tai Tseng ,  Tzu-Chieh Kuo

    IPC: G02B9/64 ,  G02B13/00 ,  G02B27/00 ,  G02B13/18

    Abstract: An optical photographing lens assembly includes seven lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements of the optical photographing lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof. The object-side surface of the first lens element is aspheric and has at least one critical point in an off-axis region thereof.

    Optical imaging lens assembly, image capturing unit and electronic device
    38.
    发明授权
    Optical imaging lens assembly, image capturing unit and electronic device 有权

    公开(公告)号：US11366294B2

    公开(公告)日：2022-06-21

    申请号：US16557692

    申请日：2019-08-30

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Po-Lun Hsu ,  Tzu-Chieh Kuo

    IPC: G02B13/00 ,  G02B7/04 ,  G02B3/14 ,  G02B9/34 ,  G02B27/64

    Abstract: An optical imaging lens assembly includes a focus tunable component and an imaging lens system. The imaging lens system includes, in order from an object side to an image side, a first lens group and a second lens group. The first lens group includes, in order from the object side to the image side, an object-side first lens element and an object-side second lens element. The second lens group includes, in order from the image side to the object side, an image-side first lens element and an image-side second lens element. At least one lens surface of at least one lens element in the imaging lens system is aspheric and has at least one inflection point. The imaging lens system has a total of at least four lens elements.

    Electronic device
    39.
    发明授权
    Electronic device 有权

    公开(公告)号：US11194126B2

    公开(公告)日：2021-12-07

    申请号：US16161283

    申请日：2018-10-16

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh Kuo

    IPC: G02B3/02 ,  G02B13/18 ,  G02B13/00 ,  G02B9/60

    Abstract: An electronic device includes at least one optical lens system. The optical lens system includes five lens elements, and the five lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. At least one of outside surfaces and inside surfaces of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element is aspheric and includes at least one inflection point.

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