SUBMINIATURE OPTICAL SYSTEM AND PORTABLE DEVICE INCLUDING THE SAME

    公开(公告)号:US20240004166A1

    公开(公告)日:2024-01-04

    申请号:US18468085

    申请日:2023-09-15

    IPC分类号: G02B13/00 G02B9/60

    摘要: There are provided a subminiature optical system having a miniature size and capable of obtaining a narrow view angle using only five sheets of lenses, and a portable device having the same. The subminiature optical system includes a first lens convex toward the object side and having positive refractive power. a second lens concave toward an image side and having negative refractive power, a third lens convex toward the object side and having positive refractive power, a fourth lens concave toward the image plane and having negative refractive power, and a fifth lens convex toward the image plane and having negative or positive refractive power, sequentially from an object side.

    Imaging lens composed of five optical elements

    公开(公告)号:US11829004B2

    公开(公告)日:2023-11-28

    申请号:US17392714

    申请日:2021-08-03

    发明人: Hisao Fukaya

    摘要: An imaging lens comprises five optical elements, in order from an object side to an image side, comprising, a first lens as a first optical element having positive refractive power, a second lens as a second optical element having negative refractive power and a convex surface facing the object side near an optical axis, a third lens as a third optical element having the refractive power, and a fourth lens as a fourth optical element having refractive power and the convex surface facing the object surface near the optical axis, wherein and an aberration correction optical element as a fifth optical element are arranged between said third lens and said fourth lens, said aberration correction optical element has both flat surfaces near the optical axis and aspheric surfaces.

    Camera optical lens
    38.
    发明授权

    公开(公告)号:US11796769B2

    公开(公告)日:2023-10-24

    申请号:US17134208

    申请日:2020-12-25

    发明人: Rongbao Shi

    摘要: A camera optical lens includes first to fifth lenses that are sequentially arranged from an object side to an image side. Each of the first lens, the third lens, and the fourth lens has a positive refractive power, and each of the second lens and the fifth lens has a negative refractive power. The camera optical lens satisfies: 0.50≤f1/f≤0.80; −1.20≤f2/f≤−0.70; 1.50≤d8/d9≤3.00; −1.50≤R3/R4≤−0.60; and 1.20≤R7/R8≤2.00, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and d8 denotes an on-axis distance from an image-side surface of the fourth lens to an object-side surface of the fifth lens. The camera optical lens can achieve high optical performance while satisfying design requirements for being ultra-thin and having a wide-angle and a large aperture.

    Optical imaging system
    39.
    发明授权

    公开(公告)号:US11789235B2

    公开(公告)日:2023-10-17

    申请号:US17541700

    申请日:2021-12-03

    发明人: Phil Ho Jung

    IPC分类号: G02B9/62 G02B9/60 G02B13/00

    CPC分类号: G02B9/62 G02B9/60 G02B13/0045

    摘要: An optical imaging system includes lenses sequentially disposed from an object side toward an imaging plane and including a refractive power in paraxial regions or edges of the paraxial regions. An object-side surface of a fifth lens of the lenses is planar in a paraxial region and the fifth lens includes a refractive power at an edge of the paraxial region.