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    Imaging optical system and image projection apparatus
    11.
    发明授权
    Imaging optical system and image projection apparatus 有权

    公开(公告)号：US10955646B2

    公开(公告)日：2021-03-23

    申请号：US16806038

    申请日：2020-03-02

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Takuya Imaoka

    IPC: G03B21/14 ,  G02B15/14 ,  G02B13/18 ,  G02B13/16 ,  G02B15/20 ,  G02B27/00

    Abstract: An imaging optical system includes a plurality of lens groups each moving such that spaces between each one of the plurality of lens groups change during a zooming. The imaging optical system conjugates a conjugate point on a magnification side and an intermediate imaging position, and conjugates a conjugate point on a reduction side and the intermediate imaging position. The imaging optical system includes a first lens group located at a furthest place on the magnification side and a rear group in this order from the magnification side toward the reduction side. The first lens group includes a field curvature correction lens group moving along an optical axis when an amount of a field curvature is changed, and a focusing lens group. The imaging optical system satisfies condition (4) below: |{(1−βcw2)×βcrw2}/{(1−βfw2)×βfrw2}|

    Zoom lens system, interchangeable lens apparatus and camera system
    14.
    发明授权
    Zoom lens system, interchangeable lens apparatus and camera system 有权
    变焦镜头系统，可互换镜头设备和相机系统

    公开(公告)号：US09398201B2

    公开(公告)日：2016-07-19

    申请号：US14687075

    申请日：2015-04-15

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Takuya Imaoka

    IPC: G02B15/14 ,  G02B27/64 ,  H04N5/225 ,  G02B15/173

    CPC classification number: H04N5/2254 ,  G02B15/14 ,  G02B15/173 ,  G02B27/646

    Abstract: A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having positive optical power; a second lens unit having negative optical power; a third lens unit having positive optical power; a fourth lens unit having negative optical power, a fifth lens unit having negative optical power; and a sixth lens unit having positive optical power, wherein the condition: 3.5

    Abstract translation: 变焦透镜系统，从物体侧到像侧依次包括：具有正光焦度的第一透镜单元; 具有负光焦度的第二透镜单元; 具有正光焦度的第三透镜单元; 具有负光焦度的第四透镜单元，具有负光焦度的第五透镜单元; 以及具有正光焦度的第六透镜单元，其中满足条件：3.5 <| f6 / f2 | <15.5（f2：第二透镜单元的焦距，f6：第六透镜单元的焦距）。

    OPTICAL TACTILE SENSOR AND SENSOR SYSTEM
    15.
    发明申请
    OPTICAL TACTILE SENSOR AND SENSOR SYSTEM 有权

    公开(公告)号：US20250060262A1

    公开(公告)日：2025-02-20

    申请号：US18940093

    申请日：2024-11-07

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Hiroaki OKAYAMA ,  Yusuke Nakaguchi ,  Tetsuya Suzuki ,  Ryo Okumura ,  Hideo Onishi ,  Takuya Imaoka

    IPC: G01L1/24 ,  G06T7/20

    Abstract: An optical tactile sensor includes: an elastic member including a contact surface to be brought into contact with an object; a holding member including a window portion and contacting and holding the elastic member, the window portion being transparent; a light source; and a camera that photographs a shape of the contact surface through the window portion, wherein the elastic member includes: a first portion including the contact surface; and a second portion formed integrally with the first portion and disposed between the first portion and the window portion, the second portion being transparent, and the second portion has a hardness higher than a hardness of the first portion.

    Projection lens system and image projection device
    16.
    发明授权
    Projection lens system and image projection device 有权

    公开(公告)号：US11513325B2

    公开(公告)日：2022-11-29

    申请号：US16905745

    申请日：2020-06-18

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Takuya Imaoka ,  Hideo Onishi ,  Kenji Ikeo ,  Katsu Yamada

    IPC: G02B13/00 ,  G02B13/16 ,  G02B15/14 ,  G02B13/22 ,  G02B15/15

    Abstract: A projection lens system that projects an image of a reduction side into a magnification side includes a diaphragm, a plurality of positive lenses, and a plurality of negative lenses. The plurality of positive lenses include a first positive lens closer to the magnification side than the diaphragm is and closest to the diaphragm, a second positive lens second closest to the diaphragm after the first positive lens on the magnification side, a third positive lens closer to the reduction side than the diaphragm is and closest to the diaphragm. The plurality of negative lenses include a first negative lens closer to the magnification side than the diaphragm is and closest to the diaphragm, and a second negative lens closer to the reduction side than the diaphragm is and closest to the diaphragm. The lenses have transmittances larger than threshold values, respectively.

    Lens system, and image projection apparatus and imaging apparatus that include the same
    17.
    发明授权
    Lens system, and image projection apparatus and imaging apparatus that include the same 有权

    公开(公告)号：US10816780B2

    公开(公告)日：2020-10-27

    申请号：US15912595

    申请日：2018-03-06

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Takuya Imaoka

    IPC: G02B13/16 ,  G02B27/00 ,  G02B27/18 ,  G02B15/20 ,  G02B27/09 ,  G03B21/14

    Abstract: The lens system forms an image conjugately between each of a magnification conjugate point and a reduction conjugate point; and an intermediate image-forming position. The lens system includes a magnification optical system with positive power, the magnification optical system having a plurality of lens elements and positioned closer to the magnification side than the intermediate image-forming position; and a relay optical system with positive power, the relay optical system having a plurality of lens elements and positioned closer to the reduction side than the intermediate image-forming position. The lens system satisfies following conditions (1) and (2). 0.08≤fp/fr≤0.8  (1) {Ymax−ft·tan(ωmax)}/{ft·tan(ωmax)}≤−0.3  (2) where fr is composite focal length of the relay optical system, fp is composite focal length of the magnification optical system, Ymax is a radius of an effective image diameter, ωmax is a maximum half view angle, and ft is the focal length of the lens system.

    PROJECTION LENS SYSTEM AND IMAGE PROJECTION DEVICE
    18.
    发明申请
    PROJECTION LENS SYSTEM AND IMAGE PROJECTION DEVICE 审中-公开

    公开(公告)号：US20200319434A1

    公开(公告)日：2020-10-08

    申请号：US16905745

    申请日：2020-06-18

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Takuya Imaoka ,  Hideo Onishi ,  Kenji Ikeo ,  Katsu Yamada

    IPC: G02B13/16 ,  G02B15/15 ,  G02B15/14 ,  G02B13/22

    Abstract: A projection lens system that projects an image of a reduction side into a magnification side includes a diaphragm, a plurality of positive lenses, and a plurality of negative lenses. The plurality of positive lenses include a first positive lens closer to the magnification side than the diaphragm is and closest to the diaphragm, a second positive lens second closest to the diaphragm after the first positive lens on the magnification side, a third positive lens closer to the reduction side than the diaphragm is and closest to the diaphragm. The plurality of negative lenses include a first negative lens closer to the magnification side than the diaphragm is and closest to the diaphragm, and a second negative lens closer to the reduction side than the diaphragm is and closest to the diaphragm. The lenses have transmittances larger than the respective lower limit values.

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