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    Photographing optical lens assembly, imaging apparatus and electronic device
    41.
    发明授权
    Photographing optical lens assembly, imaging apparatus and electronic device 有权

    公开(公告)号：US11137577B2

    公开(公告)日：2021-10-05

    申请号：US16388974

    申请日：2019-04-19

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Tzu-Chieh Kuo

    IPC: G02B13/18 ,  G02B3/02 ,  G02B13/00 ,  G02B9/62 ,  G03B17/17

    Abstract: A photographing optical lens assembly 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 towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The fifth lens element has positive refractive power, the object-side surface of the fifth lens element is convex in a paraxial region thereof, and the image-side surface of the fifth lens element is convex in a paraxial region thereof.

    Optical imaging lens assembly comprising five lenses of +−−+−, +−0+−, +−++−, +−+−−, or +−−−− refractive powers, image capturing unit and electronic device
    42.
    发明授权
    Optical imaging lens assembly comprising five lenses of +−−+−, +−0+−, +−++−, +−+−−, or +−−−− refractive powers, image capturing unit and electronic device 有权

    公开(公告)号：US11092785B2

    公开(公告)日：2021-08-17

    申请号：US16503812

    申请日：2019-07-05

    Applicant: LARGAN PRECISION CO.,LTD.

    Inventor： Yu-Chun Ke ,  Tzu-Chieh Kuo

    IPC: G02B13/00 ,  G02B9/60

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

    Photographing optical system, image capturing unit and electronic device
    43.
    发明授权
    Photographing optical system, image capturing unit and electronic device 有权

    公开(公告)号：US10852514B2

    公开(公告)日：2020-12-01

    申请号：US16183217

    申请日：2018-11-07

    Applicant: LARGAN PRECISION CO., LTD.

    Inventor： Kuo-Jui Wang ,  Yu-Tai Tseng ,  Tzu-Chieh Kuo

    IPC: G02B13/00 ,  G02B9/60

    Abstract: A photographing optical system includes five 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 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 second lens element has negative refractive power. The fifth lens element has negative refractive power. At least one of the five lens elements has at least one aspheric surface having at least one inflection point.

    Imaging optical lens assembly, image capturing unit and electronic device
    44.
    发明授权
    Imaging optical lens assembly, image capturing unit and electronic device 有权

    公开(公告)号：US10698178B2

    公开(公告)日：2020-06-30

    申请号：US16132179

    申请日：2018-09-14

    Applicant: LARGAN PRECISION CO.,LTD.

    Inventor： Tzu-Chieh Kuo

    IPC: G02B9/62 ,  G02B13/00 ,  G02B13/02 ,  G02B13/18 ,  G02B27/00

    Abstract: An imaging optical lens assembly 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 of the six lens elements has at least one aspheric surface having at least one inflection point.

    Optical imaging system, image capturing unit and electronic device
    47.
    发明授权
    Optical imaging system, image capturing unit and electronic device 有权

    公开(公告)号：US12019306B2

    公开(公告)日：2024-06-25

    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: G02B9/62 ,  G02B13/00

    CPC classification number: G02B9/62 ,  G02B13/0045

    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.

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