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    PHOTOGRAPHING OPTICAL LENS SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    1.
    发明申请
    PHOTOGRAPHING OPTICAL LENS SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20250060567A1

    公开(公告)日：2025-02-20

    申请号：US18933540

    申请日：2024-10-31

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh KUO ,  Wei-Yu CHEN

    IPC: G02B13/00 ,  G02B3/04 ,  G02B9/64 ,  G02B13/18 ,  G02B27/00

    Abstract: A photographing optical lens system 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 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 convex in a paraxial region thereof. The seventh lens element has negative refractive power. The object-side surface of the seventh lens element is concave in a paraxial region thereof. At least one of all lens surfaces of the seven lens elements is aspheric and has at least one inflection point.

    IMAGE CAPTURING OPTICAL SYSTEM
    4.
    发明公开
    IMAGE CAPTURING OPTICAL SYSTEM 审中-公开

    公开(公告)号：US20230384564A1

    公开(公告)日：2023-11-30

    申请号：US18233639

    申请日：2023-08-14

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh KUO

    IPC: G02B13/00 ,  G02B9/64 ,  G02B13/02 ,  G02B27/00

    CPC classification number: G02B13/0045 ,  G02B9/64 ,  G02B13/02 ,  G02B27/0025

    Abstract: An image capturing optical system includes ten lens elements which are, in order from an object side to an image side along an optical path: a first lens element having positive refractive power, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element, a ninth lens element and a tenth lens element having negative refractive power. Each of the ten lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The image-side surface of the second lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the image capturing optical system has at least one critical point in an off-axis region thereof.

    OPTICAL PHOTOGRAPHING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    6.
    发明申请
    OPTICAL PHOTOGRAPHING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20230130683A1

    公开(公告)日：2023-04-27

    申请号：US17979701

    申请日：2022-11-02

    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
    8.
    发明申请
    OPTICAL IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20220326482A1

    公开(公告)日：2022-10-13

    申请号：US17244606

    申请日：2021-04-29

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh KUO

    IPC: G02B9/64 ,  G02B13/18 ,  G02B3/04 ,  G02B1/04

    Abstract: An optical imaging lens assembly includes eight lens elements which are, in order from an object side to an image side along an optical path: 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. The first lens element has an object-side surface being concave in a paraxial region thereof and having at least one inflection point in an off-axis region thereof. The seventh lens element has negative refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof and having at least one inflection point in an off-axis region thereof. At least one lens surface of at least one of the second to seventh lens elements is aspheric.

    IMAGE CAPTURING LENS SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    9.
    发明申请
    IMAGE CAPTURING LENS SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20220075163A1

    公开(公告)日：2022-03-10

    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 ,  G02B15/20 ,  G02B27/00 ,  G02B13/02

    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 IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    10.
    发明申请
    OPTICAL IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200174226A1

    公开(公告)日：2020-06-04

    申请号：US16255533

    申请日：2019-01-23

    Applicant: LARGAN PRECISION CO.,LTD.

    Inventor： Yu Jui LIN ,  Tzu-Chieh KUO

    IPC: G02B13/00 ,  G02B13/04 ,  G02B9/12

    Abstract: An optical imaging lens assembly includes three lens elements which are, in order from an object side to an image side: a first lens element, a second lens element and a third lens element. Each of the three lens elements 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 inflection point. The object-side surface of the first lens element has at least one critical point in an off-axis region thereof. The optical imaging lens assembly has a total of three lens elements.

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