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    Electronic device
    61.
    发明授权
    Electronic device 有权

    公开(公告)号：US10768394B2

    公开(公告)日：2020-09-08

    申请号：US16035946

    申请日：2018-07-16

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Hung-Shuo Chen ,  Tzu-Chieh Kuo

    IPC: G02B13/08 ,  G02B3/02 ,  G02B13/00 ,  H04N13/207 ,  H04N13/254 ,  G02B9/34 ,  G02B27/00 ,  G02B13/16 ,  G02B27/01

    Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements. The four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being concave in a paraxial region thereof and an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being convex in a paraxial region thereof.

    Optical imaging system, image capturing unit and electronic device
    63.
    发明授权
    Optical imaging system, image capturing unit and electronic device 有权

    公开(公告)号：US12228703B2

    公开(公告)日：2025-02-18

    申请号：US17561067

    申请日：2021-12-23

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu-Chun Ke ,  Hong Rong Kuo ,  Tzu-Chieh Kuo

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

    Abstract: An optical imaging system includes seven 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 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 seventh lens element has negative refractive power, and the object-side surface of the seventh 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 optical imaging system has at least one inflection point in an off-axis region thereof.

    Optical photographing system and image capturing unit
    64.
    发明授权
    Optical photographing system and image capturing unit 有权

    公开(公告)号：US12210139B2

    公开(公告)日：2025-01-28

    申请号：US17511395

    申请日：2021-10-26

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Kuan Chun Wang ,  Tzu-Chieh Kuo

    IPC: G02B13/00 ,  G02B9/64 ,  H04N5/225 ,  H04N23/55

    Abstract: An optical photographing system 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. Each of the eight 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 third lens element is concave in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has positive refractive power. The seventh lens element has negative refractive power, and the image-side surface of the seventh lens element is concave in a paraxial region thereof.

    Photographing optical system
    67.
    发明授权
    Photographing optical system 有权

    公开(公告)号：US11971609B2

    公开(公告)日：2024-04-30

    申请号：US17695735

    申请日：2022-03-15

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Chun-Yen Chen ,  Kuan-Ting Yeh ,  Tzu-Chieh Kuo

    IPC: G02B9/64 ,  G02B13/00 ,  G02B27/00 ,  G02B15/14

    CPC classification number: G02B9/64 ,  G02B13/0045 ,  G02B27/0025 ,  G02B15/1461

    Abstract: A photographing optical system includes eight 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, a seventh lens element and an eighth lens element. The eight lens elements each have an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The fifth lens element has positive refractive power. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof. At least one lens surface of at least one lens element of the photographing optical system has at least one critical point in an off-axis region thereof.

    Electronic device
    70.
    发明授权
    Electronic device 有权

    公开(公告)号：US11762173B2

    公开(公告)日：2023-09-19

    申请号：US17511868

    申请日：2021-10-27

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh Kuo

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

    CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/18

    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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