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    IMAGING OPTICAL LENS SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE
    41.
    发明公开
    IMAGING OPTICAL LENS SYSTEM, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20230393372A1

    公开(公告)日：2023-12-07

    申请号：US17895864

    申请日：2022-08-25

    申请人： LARGAN PRECISION CO., LTD.

    发明人： Yu Jui LIN ,  Tzu-Chieh KUO

    IPC分类号： G02B9/64

    CPC分类号： G02B9/64

    摘要： An imaging optical lens system includes 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, in order from an object side to an image side along an optical path. The first lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has positive refractive power. At least one lens surface of at least one lens element of the imaging optical lens system has at least one critical point in an off-axis region thereof.

    Imaging optical system, image capturing device and mobile terminal
    42.
    发明授权
    Imaging optical system, image capturing device and mobile terminal 有权

    公开(公告)号：US11835693B2

    公开(公告)日：2023-12-05

    申请号：US17810693

    申请日：2022-07-05

    申请人： LARGAN PRECISION CO., LTD.

    发明人： Dung-Yi Hsieh ,  Chun-Che Hsueh ,  Wei-Yu Chen

    IPC分类号： G02B9/60 ,  G02B13/00 ,  G02B27/00

    CPC分类号： G02B13/0045 ,  G02B9/60 ,  G02B13/0015 ,  G02B27/0025

    摘要： An imaging optical 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 and a fifth lens element. The first lens element with refractive power has an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region and having a convex shape in an off-axial region thereof.

    OPTICAL SYSTEM AND HEAD-MOUNTED DEVICE
    43.
    发明公开
    OPTICAL SYSTEM AND HEAD-MOUNTED DEVICE 审中-公开

    公开(公告)号：US20230384594A1

    公开(公告)日：2023-11-30

    申请号：US17856865

    申请日：2022-07-01

    申请人： LARGAN PRECISION CO., LTD.

    发明人： Yu Jie HONG ,  Fuh-Shyang YANG

    IPC分类号： G02B27/01 ,  G02F1/1335 ,  G02B13/00

    CPC分类号： G02B27/0172 ,  G02F1/133536 ,  G02B13/0035

    摘要： An optical system includes an aperture stop, an image surface, a reflective polarizer, a partial reflector, first and second quarter-wave plates and first, second and third lens elements. The aperture stop and the image surface are respectively at a front side and a rear side of the optical system. The reflective polarizer is between the aperture stop and the image surface. The partial reflector is between the reflective polarizer and the image surface. The first quarter-wave plate is between the reflective polarizer and the partial reflector. The second quarter-wave plate is between the partial reflector and the image surface. The first lens element is between the aperture stop and the image surface. The second lens element is between the first lens element and the image surface. The third lens element has negative refractive power and is between the second lens element and the image surface.

    IMAGING LENS SYSTEM, IMAGE CAPTURING DEVICE AND ELECTRONIC DEVICE
    44.
    发明公开
    IMAGING LENS SYSTEM, IMAGE CAPTURING DEVICE AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20230375805A1

    公开(公告)日：2023-11-23

    申请号：US18229749

    申请日：2023-08-03

    申请人： LARGAN PRECISION CO., LTD.

    发明人： LIN-YAO LIAO ,  HSIN-HSUAN HUANG

    IPC分类号： G02B9/60 ,  G02B13/00

    CPC分类号： G02B9/60 ,  G02B13/0045

    摘要： This disclosure provides an imaging lens system including, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof; a second lens element with negative refractive power; a third lens element with refractive power, wherein an object-side surface and an image-side surface thereof are aspheric; a fourth lens element with refractive power, wherein an object-side surface and an image-side surface thereof are aspheric; and a fifth lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, which are both aspheric. The imaging lens system is further provided with an aperture stop, and there is no lens element with refractive power disposed between the aperture stop and the first lens element.

    Imaging optical lens assembly, image capturing unit and electronic device
    46.
    发明授权
    Imaging optical lens assembly, image capturing unit and electronic device 有权

    公开(公告)号：US11815661B2

    公开(公告)日：2023-11-14

    申请号：US16915949

    申请日：2020-06-29

    申请人： LARGAN PRECISION CO., LTD.

    发明人： Cheng-Chen Lin ,  Hsin-Hsuan Huang

    IPC分类号： G02B13/00 ,  G02B9/64

    CPC分类号： G02B13/0045 ,  G02B9/64

    摘要： An imaging optical lens assembly includes nine 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, an eighth lens element and a ninth lens element. Each of the nine 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 second lens element has negative refractive power. The image-side surface of the ninth lens element is concave in a paraxial region thereof and has at least one inflection point.

    OPTICAL IMAGE CAPTURING LENSES
    47.
    发明公开
    OPTICAL IMAGE CAPTURING LENSES 审中-公开

    公开(公告)号：US20230359001A1

    公开(公告)日：2023-11-09

    申请号：US18356288

    申请日：2023-07-21

    申请人： LARGAN PRECISION CO., LTD.

    发明人： Hsin-Hsuan HUANG

    IPC分类号： G02B13/00 ,  G02B9/62 ,  G02B1/04

    CPC分类号： G02B13/0045 ,  G02B9/62 ,  G02B1/041

    摘要： An optical image capturing lenses includes, in order from an object side to an image side, a front lens group, a stop, and a rear lens group. The front lens group includes, in order from the object side to the image side, at least a first lens element and a second lens element. The first lens element has a convex object-side surface and a concave image-side surface. The rear lens group includes, in order from the object side to the image side, at least a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The sixth lens element is made of plastic material. The object-side surface and the image-side surface of the sixth lens are aspheric. The sixth lens element has at least one inflection point formed on at least one of the object-side surface and the image-side surface thereof.