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1. 发明授权

US10539785B2 Optical system and image pickup apparatus including the same 有权
公开(公告)号：US10539785B2
公开(公告)日：2020-01-21
申请号：US15342682
申请日：2016-11-03
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B27/00
摘要： An optical system includes an aperture stop, and an optical member that is removably insertable in an optical path defined by an object side and an image side of the optical system, the optical member is disposed on the image side of the aperture stop. In a first focus range between infinity and a first finite distance, the optical member is removed from the optical path. In a second focus range between a second finite distance shorter than the first finite distance and a third finite distance shorter than the second finite distance, the optical member is inserted in the optical path. The thickness of the optical member on the optical axis and the focal length of the optical member are suitably determined.

2. 发明授权

US10288855B2 Attachment optical system, image capturing optical system, and image capturing apparatus 有权
公开(公告)号：US10288855B2
公开(公告)日：2019-05-14
申请号：US15634311
申请日：2017-06-27
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B13/00 , G02B13/20 , G02B27/00 , G03B17/14 , G02B7/02 , H04N5/225 , G02B15/20 , G03B17/56
摘要： An attachment optical system detachably attached to an image capturing optical system, includes a first lens provided with a first aspherical surface including a plurality of concave portions and convex portions that are formed in a rotation direction with respect to an optical system, and a second lens provided with a second aspherical surface including a plurality of concave portions and convex portions that are formed in a rotation direction with respect to the optical axis, and a distance between the first aspherical surface and the second aspherical surface in an optical axis direction changes by relatively rotating the first lens and the second lens around the optical axis.

3. 发明授权

US09939634B2 Zoom lens and image pickup apparatus having the same 有权
公开(公告)号：US09939634B2
公开(公告)日：2018-04-10
申请号：US15316964
申请日：2015-06-04
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B15/14 , G02B27/00
CPC分类号： G02B27/0025 , G02B15/14 , G02B15/173 , G02B27/646
摘要： To obtain a zoom lens easily performing image blur correction and maintaining optical performance while performing image blur correction while restricting an increase in size of the lens. A zoom lens including, in order from an object side: a positive first unit; a negative second unit; a positive third unit; and a rear group that has one or more units. Spacings between adjacent units change during zooming. First and second correction systems rotatable about first and second centers on or in the vicinity of an optical axis during blur correction are respectively constituted by at least a part of the second unit and at least a part of an optical system disposed on image side of the second unit. The first and second centers are on image side of a surface vertex of the respective first and second correction systems closest to the object side.

4. 发明申请

US20170131527A1 OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20170131527A1
公开(公告)日：2017-05-11
申请号：US15342682
申请日：2016-11-03
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B15/10 , G02B27/00 , G02B15/22
摘要： An optical system includes an aperture stop, and an optical member that is removably insertable in an optical path defined by an object side and an image side of the optical system, the optical member is disposed on the image side of the aperture stop. In a first focus range between infinity and a first finite distance, the optical member is removed from the optical path. In a second focus range between a second finite distance shorter than the first finite distance and a third finite distance shorter than the second finite distance, the optical member is inserted in the optical path. The thickness of the optical member on the optical axis and the focal length of the optical member are suitably determined.

5. 发明授权

US11249290B2 Zoom lens and image pickup apparatus including the same 有权
公开(公告)号：US11249290B2
公开(公告)日：2022-02-15
申请号：US16825924
申请日：2020-03-20
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B15/14 , G02B27/00 , G02B15/177 , G02B15/20 , G02B13/00 , H04N5/225 , G02B9/34 , H04N5/232 , G02B27/64
摘要： Provided is a zoom lens including, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit having a negative refractive power. In the zoom lens, an interval between each pair of adjacent lens units is changed during zooming, and the first lens unit is configured not to move for zooming. Further, a total length DT of the zoom lens at a telephoto end, a focal length fT of the zoom lens at the telephoto end, a distance BW of a back focus at a wide-angle end, a total length DW of the zoom lens at the wide-angle end, and a focal length f3 of the third lens unit are each appropriately set.

6. 发明授权

US09921409B2 Image pickup apparatus 有权
公开(公告)号：US09921409B2
公开(公告)日：2018-03-20
申请号：US15090788
申请日：2016-04-05
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B27/00 , H04N5/225 , G03B17/08 , G03B17/14 , G02B7/14 , G03B5/00
CPC分类号： G02B27/0068 , G02B7/14 , G03B5/00 , G03B17/08 , G03B17/14 , H04N5/2252
摘要： Provided is an image pickup apparatus, including: an image pickup optical system including a protection lens, which is arranged closest to a light incident side and has a convex-shaped surface on light incident side; and a housing houses the image pickup optical system, in which the image pickup optical system includes an aperture stop, and an optical systems A and B, which are arranged on an image side of aperture stop to be selectively placed in an optical path of image pickup optical system, the optical systems A and B having mutually different optical characteristics, and in which the housing separates a medium outside of housing and an inside of housing, and in which the image pickup apparatus further includes a switching unit selectively places one of optical systems A and B in optical path of image pickup optical system depending on a medium outside housing.

7. 发明申请

US20180003929A1 ATTACHMENT OPTICAL SYSTEM, IMAGE CAPTURING OPTICAL SYSTEM, AND IMAGE CAPTURING APPARATUS 审中-公开
公开(公告)号：US20180003929A1
公开(公告)日：2018-01-04
申请号：US15634311
申请日：2017-06-27
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B13/20 , G03B17/14 , H04N5/225 , G02B7/02 , G02B15/20
CPC分类号： G02B13/20 , G02B7/023 , G02B15/20 , G02B27/0068 , G03B17/14 , G03B17/565 , H04N5/2253 , H04N5/2254
摘要： An attachment optical system detachably attached to an image capturing optical system, includes a first lens provided with a first aspherical surface including a plurality of concave portions and convex portions that are formed in a rotation direction with respect to an optical system, and a second lens provided with a second aspherical surface including a plurality of concave portions and convex portions that are formed in a rotation direction with respect to the optical axis, and a distance between the first aspherical surface and the second aspherical surface in an optical axis direction changes by relatively rotating the first lens and the second lens around the optical axis.

8. 发明申请

US20150185493A1 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 审中-公开
标题翻译：变焦镜头和图像拾取装置包括它们
公开(公告)号：US20150185493A1
公开(公告)日：2015-07-02
申请号：US14564525
申请日：2014-12-09
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B27/64 , G02B15/16
CPC分类号： G02B27/646 , G02B15/173
摘要： A zoom lens includes, in order from an object side: a positive first lens unit; a negative second lens unit; a positive third lens unit; and a rear lens unit including at least one lens unit. In the zoom lens, an interval between adjacent lens units is changed during zooming, at least a part of the second lens unit is a correction lens unit rotatable during image blur correction with one point located on an optical axis or near the optical axis as a center of rotation located closer to the image side than an intersection between the optical axis and a lens surface of the correction lens unit closest to the object side, and a distance in a direction of the optical axis from the intersection to the center of rotation and a thickness of the correction lens unit on the optical axis are appropriately set.
摘要翻译：变焦透镜从物体侧依次包括：正的第一透镜单元; 负第二透镜单元; 正的第三透镜单元; 以及包括至少一个透镜单元的后透镜单元。在变焦镜头中，在变焦期间相邻透镜单元之间的间隔发生变化，第二透镜单元的至少一部分是在图像模糊校正期间可旋转的校正透镜单元，其中位于光轴或光轴附近的一个点为位于比邻近物体侧的校正透镜单元的光轴和透镜面的交点更靠近像侧的旋转中心以及光轴方向从交点到旋转中心的距离，以及光轴上的校正透镜单元的厚度被适当地设定。

9. 发明申请

US20190222728A1 IMAGING OPTICAL SYSTEM, IMAGE PROJECTION APPARATUS, AND CAMERA SYSTEM 审中-公开
公开(公告)号：US20190222728A1
公开(公告)日：2019-07-18
申请号：US16247940
申请日：2019-01-15
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： H04N5/225 , G02B27/00 , G02B5/08
摘要： An imaging optical system includes, in order from an enlargement conjugate side to a reduction conjugate side, a first mirror as a convex mirror, a first lens unit, a second mirror as a concave mirror, a third mirror as a concave mirror, and a second lens unit. The imaging optical system is configured to form a first intermediate real image and a second intermediate real image located at a position different from that of the first intermediate real image between the first mirror and a reduction side conjugate plane.

10. 发明申请

US20170115482A1 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME 有权
公开(公告)号：US20170115482A1
公开(公告)日：2017-04-27
申请号：US15316964
申请日：2015-06-04
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Aoki
IPC分类号： G02B27/00 , G02B15/14
CPC分类号： G02B27/0025 , G02B15/14 , G02B15/173 , G02B27/646
摘要： To obtain a zoom lens easily performing image blur correction and maintaining optical performance while performing image blur correction while restricting an increase in size of the lens. A zoom lens including, in order from an object side: a positive first unit; a negative second unit; a positive third unit; and a rear group that has one or more units. Spacings between adjacent units change during zooming. First and second correction systems rotatable about first and second centers on or in the vicinity of an optical axis during blur correction are respectively constituted by at least a part of the second unit and at least a part of an optical system disposed on image side of the second unit. The first and second centers are on image side of a surface vertex of the respective first and second correction systems closest to the object side.

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