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    OPTICAL IMAGING SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    1.
    发明公开
    OPTICAL IMAGING SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20230168470A1

    公开(公告)日：2023-06-01

    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 ,  G02B13/02 ,  G02B9/64

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

    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.

    IMAGE LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    2.
    发明申请
    IMAGE LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20220035131A1

    公开(公告)日：2022-02-03

    申请号：US17020590

    申请日：2020-09-14

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu-Chun KE ,  Jin Sen WANG ,  Ssu-Hsin LIU ,  Wei-Yu CHEN

    IPC: G02B13/00 ,  G02B9/60 ,  G02B27/00 ,  G02B13/02

    Abstract: An image lens assembly includes five 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 and a fifth lens element. The first lens element has positive refractive power. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and having at least one concave critical point in an off-axis region thereof. The fifth lens element has an image-side surface being concave in a paraxial region thereof and having at least one convex critical point in an off-axis region thereof.

    OPTICAL IMAGING SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    3.
    发明申请
    OPTICAL IMAGING SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20220404584A1

    公开(公告)日：2022-12-22

    申请号：US17382049

    申请日：2021-07-21

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yi-Hsiang CHUANG ,  Kuan Chun WANG ,  Chun-Yen CHEN ,  Kuan-Ting YEH ,  Yu-Chun KE ,  Tzu-Chieh KUO

    IPC: G02B13/00 ,  G02B9/62 ,  G02B27/00 ,  G02B13/02

    Abstract: An optical imaging system includes six 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 and a sixth lens element. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has negative refractive power, and the object-side surface of the first lens element is concave in a paraxial region thereof. The image-side surface of the second lens element is concave in a paraxial region thereof. The fourth lens element has negative refractive power. The image-side surface of the sixth lens element is concave in a paraxial region thereof and has at least one critical point in an off-axis region thereof.

    OPTICAL IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    5.
    发明申请
    OPTICAL IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20250123465A1

    公开(公告)日：2025-04-17

    申请号：US18515954

    申请日：2023-11-21

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Wei-Xiang FU ,  Yu-Chun KE ,  Cheng-Yu TSAI

    IPC: G02B13/00 ,  G02B9/64

    Abstract: An optical imaging lens assembly includes nine 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, an eighth lens element and a ninth lens element. The first lens element has negative refractive power. The second lens element with negative refractive power has an object-side surface being convex and an image-side surface being concave in a paraxial region thereof. The fourth lens element has an image-side surface being convex in a paraxial region thereof. The fifth lens element has positive refractive power. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof.

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

    公开(公告)号：US20210255429A1

    公开(公告)日：2021-08-19

    申请号：US17115731

    申请日：2020-12-08

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu Jui LIN ,  Yu-Chun KE ,  Jin Sen WANG ,  Wei-Yu CHEN ,  Chun-Yen CHEN

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

    Abstract: An imaging optical lens assembly 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. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof.

    IMAGING OPTICAL LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    7.
    发明申请
    IMAGING OPTICAL LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20210255428A1

    公开(公告)日：2021-08-19

    申请号：US16897737

    申请日：2020-06-10

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu Jui LIN ,  Yu-Chun KE ,  Jin Sen WANG ,  Wei-Yu CHEN

    IPC: G02B13/00 ,  G02B9/64

    Abstract: An imaging optical lens assembly 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. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof.

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

    公开(公告)号：US20250138284A1

    公开(公告)日：2025-05-01

    申请号：US18517677

    申请日：2023-11-22

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu-Chun KE ,  Shiu Sheng LI ,  Hong Rong KUO ,  Yu-Han SHIH

    IPC: G02B13/00 ,  G02B9/62

    Abstract: An image capturing lens assembly includes six lens units which are, in order from an object side to an image side along an optical path: first through sixth lens units. Each lens unit of the first through third lens units and the fifth through sixth lens units is a single lens element. The fourth lens unit is a single lens element or is composed of two lens elements, and the fourth lens unit at least includes a front lens element. The total number of lens elements of the image capturing lens assembly is six to seven. The first lens unit has an image-side surface being concave in a paraxial region thereof. The third lens unit has an object-side surface being convex in a paraxial region thereof. The front lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof.

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