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    ZOOM LENS AND IMAGE PICKUP APPARATUS
    2.
    发明申请
    ZOOM LENS AND IMAGE PICKUP APPARATUS 有权

    公开(公告)号：US20220269057A1

    公开(公告)日：2022-08-25

    申请号：US17574088

    申请日：2022-01-12

    申请人： CANON KABUSHIKI KAISHA

    发明人： Masao Hori ,  Kazuya Shimomura

    IPC分类号： G02B15/163 ,  G02B13/02 ,  G02B13/00

    摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, and a subsequent unit including a plurality of lens units, The first lens unit is configured not to move for zooming. A distance between each pair of adjacent lens units changes in zooming. The subsequent unit includes, in order from the image side to the object side, a lens having a positive refractive power and configured not to move for zooming, a moving positive lens unit consisting of one or two lenses, having a positive refractive power, and configured to move in zooming, and a diaphragm configured to move in zooming. The diaphragm is closer to the object side at the wide-angle end than at the telephoto end. A predetermined condition is satisfied.

    VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR PRODUCING VARIABLE MAGNIFICATION OPTICAL SYSTEM
    5.
    发明申请
    VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR PRODUCING VARIABLE MAGNIFICATION OPTICAL SYSTEM 有权

    公开(公告)号：US20210033834A1

    公开(公告)日：2021-02-04

    申请号：US16496446

    申请日：2017-04-05

    申请人： Nikon Corporation

    发明人： Kosuke MACHIDA

    IPC分类号： G02B15/14 ,  G02B15/163 ,  G02B13/18 ,  G02B15/177

    摘要： A variable magnification optical system comprising, in order from an object side, a first lens group having negative refractive power, a first intermediate lens group having positive refractive power, a second intermediate lens group having negative refractive power and a rear lens group; upon varying a magnification from a wide angle end state to a telephoto end state, a distance between the first lens group and the first intermediate lens group being varied, a distance between the first intermediate lens group and the second intermediate lens group being varied, and a distance between the second intermediate lens group and the rear lens group being varied; the rear lens group comprising at least one focusing lens group which is moved upon carrying out focusing from an infinitely distant object to a closely distant object; and predetermined conditional expressions being satisfied, thereby the focusing lens group(s) being reduced in weight.

    Zoom lens and image pickup apparatus using the same
    7.
    发明授权
    Zoom lens and image pickup apparatus using the same 有权

    公开(公告)号：US10606045B2

    公开(公告)日：2020-03-31

    申请号：US15945661

    申请日：2018-04-04

    申请人： OLYMPUS CORPORATION

    发明人： Kazuteru Kawamura ,  Akiko Naito ,  Keitaro Yokoyama ,  Toshio Takahashi

    IPC分类号： G02B15/163 ,  H04N5/262 ,  H04N5/225 ,  G02B27/00 ,  G02B13/18 ,  G02B5/00 ,  G02B15/177 ,  G02B9/60 ,  G02B13/04 ,  G02B13/00 ,  G02B9/00 ,  G02B15/20 ,  G02B15/16 ,  G02B15/14 ,  G02B9/34 ,  G02B7/10

    摘要： A zoom lens comprises four lens unit, and at the time of zooming, each of a distance between a first positive lens unit and a first negative lens unit and a distance between a second negative lens unit and a second positive lens unit changes, and a distance between the first positive lens unit and the second negative lens unit widens more at the telephoto end than at the wide angle end, and the first positive lens unit includes an object-side sub-lens unit and an image-side sub-lens unit, and an aperture stop is disposed between the object-side sub-lens unit and the image-side sub-lens unit, and the first negative lens unit includes a negative lens and a positive lens, and a refracting surface nearest to an image in the first negative lens unit is concave toward the image side, and a refracting surface nearest to an object in the second positive lens unit is concave toward the object side, and a refracting surface nearest to the image in the second positive lens unit is convex toward the image side, and the zoom lens satisfies predetermined conditional expressions.

    Camera module
    8.
    发明授权
    Camera module 有权

    公开(公告)号：US10594911B2

    公开(公告)日：2020-03-17

    申请号：US16411469

    申请日：2019-05-14

    申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.

    发明人： Ah Hyeon Im ,  Ta Kyoung Lee ,  Bong Won Jeong

    IPC分类号： H04N5/225 ,  G02B15/14 ,  H04N5/232 ,  G02B7/10 ,  G02B13/00 ,  G02B15/163

    摘要： A camera module includes: a housing; a reflecting module; and a lens module disposed behind the reflecting module, wherein the moving holder is disposed to be movable in one axial direction, approximately perpendicular to the optical axial direction and the one axial direction with respect to the housing, the lens module includes a carrier supported by the housing to be linearly movable in approximately the optical axial direction, the lens module includes two or more lens barrels of which some are fixed, and the others are supported by the housing to be linearly movable in approximately the optical axial direction, and lenses are distributed and provided into the at least two lens barrels.

    Projection optical device and projector
    9.
    发明授权
    Projection optical device and projector 有权

    公开(公告)号：US10571784B2

    公开(公告)日：2020-02-25

    申请号：US15557165

    申请日：2016-03-02

    申请人： SEIKO EPSON CORPORATION

    发明人： Takuya Hatano ,  Naoto Takehana

    IPC分类号： G03B21/14 ,  G02B15/163 ,  G02B15/20 ,  G02B27/14 ,  G02B7/02 ,  G02B7/10 ,  G03B21/28 ,  G03B21/20 ,  G03B21/00 ,  H04N9/31 ,  G02B15/17

    摘要： A projection optical device includes a fourth lens group movable along an optical axis, a fifth lens group provided in a position maintained within the projection optical device, a fourth lens frame holding the fourth lens group and having cam pins, a guide tube having a rectilinear groove, the cam pins inserted into the rectilinear groove, and a cam tube rotated with respect to the guide tube to guide the cam pins with the rectilinear groove and the cam groove, and moving the fourth lens frame along the optical axis, wherein the cam pins are formed on an upstream side in an optical path of the fourth lens group in a direction along the optical axis, and the fifth lens group is provided on the upstream side in the optical path of the fourth lens group.

    Zoom lens system, imaging apparatus and camera
    10.
    发明授权
    Zoom lens system, imaging apparatus and camera 有权

    公开(公告)号：US10353184B2

    公开(公告)日：2019-07-16

    申请号：US15682547

    申请日：2017-08-22

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： Yasuto Suzuki ,  Genki Nakazawa

    IPC分类号： G02B15/163 ,  G02B15/17

    摘要： A zoom lens system is an optical system that includes, in order from an object side to an image side, a first lens group having one first lens element with positive optical power, a second lens group having one second lens element with negative optical power, a third lens group with negative optical power, and a subsequent lens group including at least two lens groups. When zooming, distances between the lens groups change, and condition: 1.65