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公开(公告)号：US20210157091A1
公开(公告)日：2021-05-27
申请号：US17165768
申请日：2021-02-02
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshinori Yamazaki , Masahisa Tamura , Takehiko Sato , Katsuhiro Inoue , Daisuke Nakashita , Mitsuhiro Izumi , Seishiro Takano
Abstract: Interchangeable lenses 100A, B, C, and D include a focusing lens unit FLU that is to be moved in an optical axis direction to focus, a focus operation ring 103 that moves the focusing lens unit FLU in the optical axis direction, and a custom operation ring 104 that realizes one of a function among a first function and a second function different from the focusing, and a surface of the focus operation ring 103 has a first structure and a surface of the custom operation ring 104 has a second structure different from the first structure.
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公开(公告)号：US20130148954A1
公开(公告)日：2013-06-13
申请号：US13706471
申请日：2012-12-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshiyuki Uehara , Kousuke Kiyamura , Mitsuhiro Izumi
IPC: G03B17/14
CPC classification number: G03B17/14 , G02B7/022 , G03B2206/00
Abstract: The interchangeable lens includes a lens holding member holding a lens, a first supporting bar engaging with the lens holding member to guide movement of the lens holding member in an optical axis direction, a second supporting bar engaging with the lens holding member to prevent rotation of the lens holding member, the second supporting bar having a shorter length than that of the first supporting bar. The interchangeable lens further includes a mount contact provided as an electric contact in a mount portion detachably attachable to a camera body. When viewed from the optical axis direction, the first supporting bar is disposed in an area not overlapping the mount contact, and the second supporting bar is disposed in an area overlapping the mount contact, and when viewed from a direction orthogonal to the optical axis direction, part of the first supporting bar overlaps the mount contact.
Abstract translation: 可互换透镜包括保持透镜的透镜保持构件，与透镜保持构件接合以引导透镜保持构件沿光轴方向的移动的第一支撑杆，与透镜保持构件接合的第二支撑杆，以防止 透镜保持构件，第二支撑杆具有比第一支撑杆的短的长度。 可互换透镜还包括在可拆卸地附接到照相机主体的安装部分中设置为电触头的安装触头。 当从光轴方向观察时，第一支撑杆设置在不与安装触点重叠的区域中，并且第二支撑杆设置在与安装触点重叠的区域中，并且当从与光轴方向正交的方向观察时 第一支撑杆的一部分与安装触点重叠。
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公开(公告)号：US20210255415A1
公开(公告)日：2021-08-19
申请号：US17166871
申请日：2021-02-03
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshihiro Ogawa , Mitsuhiro Izumi
Abstract: An apparatus includes a lens, a cam barrel configured to rotate around an optical axis, an actuator disposed on an inner peripheral side of the cam barrel, a movement unit disposed on the inner peripheral side of the cam barrel and configured to move the lens in an optical-axis direction, and an adjustment unit disposed on the inner peripheral side of the cam barrel and configured to adjust a position of the lens. The movement unit, the adjustment unit, and the actuator are arranged at different phases from one another in a circumferential direction of the cam barrel. Widths of the movement unit, the adjustment unit, and the actuator in the optical-axis direction overlap one another.
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4.发明申请公开(公告)号：US20170242216A1
公开(公告)日：2017-08-24
申请号：US15433521
申请日：2017-02-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Mitsuhiro Izumi
IPC: G02B7/09
Abstract: A lens driving apparatus that enables to improve responsiveness. The lens driving apparatus drives a lens in an optical axis direction. A holding member holds the lens and is movable in the optical axis direction. A first detection unit detects a position of the holding member in the optical axis direction as a current position. A second detection unit detects information about deformation of the holding member. A control unit controls movement of the holding member based on the current position and the information about deformation.
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5.发明授权公开(公告)号：US10244173B2
公开(公告)日：2019-03-26
申请号：US15433559
申请日：2017-02-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryo Abe , Mitsuhiro Izumi
Abstract: A driving device that is capable of suppressing enlargement of diameter when a movable amount of a moving part increases. The driving device drives a moving part that is movably supported by a fixing part in a predetermined direction. A drive unit has first and second actuators each of which includes a coil arranged in one of the fixing part and moving part and a magnet arranged in the other part so as to face the coil, and gives a thrust to drive the moving part. A control unit controls the drive unit by controlling electric currents supplied to the coils of the first and second actuators in response to results obtained by multiplying first and second coefficients that vary in response to the position of the moving part to first and second control values obtained from first and second functions based on the position of the moving part, respectively.
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Patent Agency Ranking
公开(公告)号：US09798160B2
公开(公告)日：2017-10-24
申请号：US15175896
申请日：2016-06-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Mitsuhiro Izumi
CPC classification number: G02B27/646 , G02B7/023 , G02B27/64 , H04N5/232 , H04N5/23248
Abstract: An image stabilization apparatus which reduces variations in performance with surface accuracy of a rolling surface for rolling members. A movable unit holds an optical element and is rotatable about a first rotational axis perpendicular to an optical axis of the optical element and a second rotational axis perpendicular to the optical axis and the first formational axis through rolling of the rolling members. With the second rotational axis coinciding with a center of the rolling surface, a first ratio of the first moving range of the rolling members to the first rotational range of the movable unit is smaller than a second ratio of the second moving range of the rolling members to the second rotational range of the movable unit.
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7.发明申请IMAGE STABILIZATION APPARATUS THAT REDUCES BLURRING OF SUBJECT IMAGE AND OPTICAL DEVICE 有权影像稳定装置，减少影像和光学装置的影响公开(公告)号：US20160357027A1
公开(公告)日：2016-12-08
申请号：US15175896
申请日：2016-06-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Mitsuhiro Izumi
CPC classification number: G02B27/646 , G02B7/023 , G02B27/64 , H04N5/232 , H04N5/23248
Abstract: An image stabilization apparatus which reduces variations in performance with surface accuracy of a rolling surface for rolling members. A movable unit holds an optical element and is rotatable about a first rotational axis perpendicular to an optical axis of the optical element and a second rotational axis perpendicular to the optical axis and the first formational axis through rolling of the rolling members. With the second rotational axis coinciding with a center of the rolling surface, a first ratio of the first moving range of the rolling members to the first rotational range of the movable unit is smaller than a second ratio of the second moving range of the rolling members to the second rotational range of the movable unit.
Abstract translation: 一种图像稳定装置，其降低滚动构件的滚动面的表面精度的性能变化。 可移动单元保持光学元件，并且能够绕垂直于光学元件的光轴的第一旋转轴线和通过滚动部件的滚动而垂直于光轴和第一形成轴线的第二旋转轴线旋转。 在第二旋转轴与滚动面的中心一致的情况下，滚动体的第一移动范围与可动单元的第一旋转范围的第一比例小于滚动体的第二移动范围的第二比例 到可移动单元的第二旋转范围。
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公开(公告)号：US08834044B2
公开(公告)日：2014-09-16
申请号：US13706471
申请日：2012-12-06
Applicant: Canon Kabushiki Kaisha
Inventor： Toshiyuki Uehara , Kousuke Kiyamura , Mitsuhiro Izumi
CPC classification number: G03B17/14 , G02B7/022 , G03B2206/00
Abstract: The interchangeable lens includes a lens holding member holding a lens, a first supporting bar engaging with the lens holding member to guide movement of the lens holding member in an optical axis direction, a second supporting bar engaging with the lens holding member to prevent rotation of the lens holding member, the second supporting bar having a shorter length than that of the first supporting bar. The interchangeable lens further includes a mount contact provided as an electric contact in a mount portion detachably attachable to a camera body. When viewed from the optical axis direction, the first supporting bar is disposed in an area not overlapping the mount contact, and the second supporting bar is disposed in an area overlapping the mount contact, and when viewed from a direction orthogonal to the optical axis direction, part of the first supporting bar overlaps the mount contact.
Abstract translation: 可互换透镜包括保持透镜的透镜保持构件，与透镜保持构件接合以引导透镜保持构件沿光轴方向的移动的第一支撑杆，与透镜保持构件接合的第二支撑杆，以防止 透镜保持构件，第二支撑杆具有比第一支撑杆的短的长度。 可互换透镜还包括在可拆卸地附接到照相机主体的安装部分中设置为电触头的安装触头。 当从光轴方向观察时，第一支撑杆设置在不与安装触点重叠的区域中，并且第二支撑杆设置在与安装触点重叠的区域中，并且当从与光轴方向正交的方向观察时 第一支撑杆的一部分与安装触点重叠。
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公开(公告)号：US12085776B2
公开(公告)日：2024-09-10
申请号：US17166871
申请日：2021-02-03
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshihiro Ogawa , Mitsuhiro Izumi
Abstract: An apparatus includes a lens, a cam barrel configured to rotate around an optical axis, an actuator disposed on an inner peripheral side of the cam barrel, a movement unit disposed on the inner peripheral side of the cam barrel and configured to move the lens in an optical-axis direction, and an adjustment unit disposed on the inner peripheral side of the cam barrel and configured to adjust a position of the lens. The movement unit, the adjustment unit, and the actuator are arranged at different phases from one another in a circumferential direction of the cam barrel. Widths of the movement unit, the adjustment unit, and the actuator in the optical-axis direction overlap one another.
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公开(公告)号：US20210356846A1
公开(公告)日：2021-11-18
申请号：US17316145
申请日：2021-05-10
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kohei Uemura , Mitsuhiro Izumi
Abstract: A lens barrel and an image pickup apparatus that can be downsized and have a high degree of freedom in design is provided. The lens barrel includes a fixed barrel, a guide barrel fixed to the fixed barrel, a cam barrel rotatably supported by the guide barrel, a driver that is supported by the fixed barrel and drives the cam barrel, and a deceleration mechanism that is disposed so as to connect the driver and the cam barrel and decelerates rotation from the driver to transmit the rotation to the cam barrel. The driver is disposed inside the cam barrel. At least part of the deceleration mechanism is disposed so as to overlap the cam barrel when viewed from a direction of an optical axis of an image pickup optical system.
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