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    OPTICAL PHOTOGRAPHING SYSTEM, IMAGE CAPTURING APPARATUS AND ELECTRONIC DEVICE
    12.
    发明申请
    OPTICAL PHOTOGRAPHING SYSTEM, IMAGE CAPTURING APPARATUS AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200241253A1

    公开(公告)日：2020-07-30

    申请号：US16846632

    申请日：2020-04-13

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Chun-Che HSUEH ,  Yu-Tai TSENG ,  Hsin-Hsuan HUANG

    IPC: G02B13/00 ,  G02B27/00 ,  G02B13/04 ,  G02B9/62

    Abstract: An optical photographing system includes, 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 and a sixth lens element. The first lens element has an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has two surfaces being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the surfaces of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex shape in an off-axial region thereof.

    IMAGING OPTICAL SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    13.
    发明申请
    IMAGING OPTICAL SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200096734A1

    公开(公告)日：2020-03-26

    申请号：US16188866

    申请日：2018-11-13

    Applicant: LARGAN PRECISION CO.,LTD.

    Inventor： Chun-Che HSUEH ,  Hung-Shuo CHEN ,  Yu-Tai TSENG ,  Tzu-Chieh KUO

    IPC: G02B13/00 ,  G02B9/62

    Abstract: An imaging optical system includes six 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 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. At least one lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.

    IMAGE SYSTEM LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    14.
    发明申请
    IMAGE SYSTEM LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20190384040A1

    公开(公告)日：2019-12-19

    申请号：US16555619

    申请日：2019-08-29

    Applicant: LARGAN PRECISION CO.,LTD.

    Inventor： Yu-Tai TSENG ,  Tzu-Chieh KUO

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

    Abstract: An image system 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. At least one surface among object-side surfaces and image-side surfaces of the fifth lens element, the sixth lens element and the seventh lens element has at least one critical point in an off-axis region thereof.

    IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    15.
    发明申请
    IMAGING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20190004285A1

    公开(公告)日：2019-01-03

    申请号：US15816897

    申请日：2017-11-17

    Applicant: LARGAN Precision Co., Ltd.

    Inventor： Hsiang-Chi TANG ,  Cheng-Chen LIN ,  Chun-Yen CHEN ,  Yu-Tai TSENG ,  Wei-Yu CHEN

    IPC: G02B13/00 ,  G02B9/64

    CPC classification number: G02B13/0045 ,  G02B9/64

    Abstract: An imaging lens assembly includes, 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. The first lens element with positive 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. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric. At least one of an image-side surface of the fourth lens element and an image-side surface of the fifth lens element has at least one inflection point.

    PHOTOGRAPHING OPTICAL LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    18.
    发明公开
    PHOTOGRAPHING OPTICAL LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20230333347A1

    公开(公告)日：2023-10-19

    申请号：US17855652

    申请日：2022-06-30

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu-Tai TSENG ,  Meng-Kuan CHO ,  I-Hsuan CHEN

    IPC: G02B9/60

    CPC classification number: G02B9/60

    Abstract: A photographing optical 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. Each of the five 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. The third lens element has negative refractive power. The fourth lens element has positive refractive power. The object-side surface of the fifth lens element is convex in a paraxial region thereof, the image-side surface of the fifth lens element is concave in a paraxial region thereof, and the image-side surface of the fifth lens element has at least one inflection point.

    OPTICAL LENS ASSEMBLY COMPRISING SEVEN LENSES OF -++--+- OR +++--+- REFRACTIVE POWERS, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    19.
    发明公开
    OPTICAL LENS ASSEMBLY COMPRISING SEVEN LENSES OF -++--+- OR +++--+- REFRACTIVE POWERS, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20230314774A1

    公开(公告)日：2023-10-05

    申请号：US18206572

    申请日：2023-06-06

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Yu-Tai TSENG ,  Chun-Che HSUEH ,  Hung-Shuo CHEN ,  Wei-Yu CHEN

    IPC: G02B13/00 ,  G02B9/64

    CPC classification number: G02B13/0045 ,  G02B9/64

    Abstract: An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.

    PHOTOGRAPHING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    20.
    发明申请
    PHOTOGRAPHING LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20210356699A1

    公开(公告)日：2021-11-18

    申请号：US17388597

    申请日：2021-07-29

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Cheng-Chen LIN ,  Yu-Tai TSENG ,  Wei-Yu CHEN

    IPC: G02B9/64 ,  G02B13/00

    Abstract: A photographing lens assembly 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 first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the eighth lens element has at least one critical point in an off-axis region thereof.

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