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1. 发明授权

US12013520B2 Zoom lens and image pickup apparatus 有权
公开(公告)号：US12013520B2
公开(公告)日：2024-06-18
申请号：US17355730
申请日：2021-06-23
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoya Yamada , Masaru Sakamoto , Yu Inomoto , Naotoshi Ogawa
IPC分类号： G02B15/14 , G02B15/20 , G02B27/00
CPC分类号： G02B15/1461 , G02B15/1441 , G02B15/145119 , G02B15/145125 , G02B15/145129 , G02B15/20 , G02B27/0025
摘要： A zoom lens includes, from an object side a first lens unit (a positive refractive power) configured not to move for zooming, two or more intermediate lens units configured to move in zooming, and a rear lens unit (a positive refractive power), wherein an interval between each pair of adjacent lens units changes in zooming, the first lens unit includes, from the object side, a first lens subunit (a negative refractive power) configured not to move for focusing, a second lens subunit (a positive refractive power) configured to move for focusing, and a third lens subunit (a positive refractive power), the zoom lens satisfies specific inequalities concerning a focal length of the first lens unit, a length on an optical axis from a last surface to a rear principal point of the first lens unit, and a focal length of the zoom lens at a telephoto end.

2. 发明申请

US20170108678A1 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20170108678A1
公开(公告)日：2017-04-20
申请号：US15297617
申请日：2016-10-19
申请人： CANON KABUSHIKI KAISHA
发明人： Nobuyuki Miyazawa , Tomoyuki Nakamura , Naotoshi Ogawa , Kazuya Shimomura
IPC分类号： G02B15/173 , G02B15/177 , G02B15/20
CPC分类号： G02B15/173 , G02B5/005 , G02B7/04 , G02B9/60 , G02B9/62 , G02B15/14 , G02B15/161 , G02B15/17 , G02B15/177 , G02B15/20 , G02B15/24 , G02B27/646
摘要： A zoom lens, includes, in order from object side: a front unit including a unit including a first unit arranged closest to the object side and not moving for zooming; an Nf unit including three or more lenses and having a negative refractive power; an stop; a first rear unit moving during zooming; a second rear unit moving during zooming; and a third rear unit not moving for zooming, in which: the front unit includes four or more lenses and includes one or more units having a positive refractive power; and a difference between positions of the first rear unit at a wide angle end and a telephoto end, a difference between positions of the second rear unit at the wide angle end and the telephoto end, a focal length of the second rear unit, and a focal length of the zoom at the wide angle end are appropriately set.

3. 发明授权

US11187876B2 Zoom lens and image pickup apparatus 有权
公开(公告)号：US11187876B2
公开(公告)日：2021-11-30
申请号：US16938061
申请日：2020-07-24
申请人： CANON KABUSHIKI KAISHA
发明人： Naotoshi Ogawa
IPC分类号： G02B15/14
摘要： Provided is a zoom lens including in order from an object side: a positive first lens unit not moving for a change in magnification; a negative second lens unit moving for a change in magnification; and two or three rear lens units having a positive refractive power as a whole, at least one of the rear lens units being configured to move for a change in magnification. The first lens unit includes a negative first lens sub-unit not moving for focusing, a positive second lens sub-unit moving for focusing, a third lens sub-unit not moving for focusing, and a positive fourth lens sub-unit moving for focusing. An amount of movement of the second lens sub-unit during focusing from infinity to a minimum object distance, and an amount of movement of the fourth lens sub-unit during focusing from infinity to the minimum object distance satisfy a specific conditional expression.

4. 发明申请

US20170031139A1 IMAGE PICKUP APPARATUS, REAR ATTACHMENT LENS, AND IMAGE PICKUP SYSTEM INCLUDING THE SAME 有权
标题翻译：图像拾取装置，后置附件镜头和包括其中的图像拾取系统
公开(公告)号：US20170031139A1
公开(公告)日：2017-02-02
申请号：US15218209
申请日：2016-07-25
申请人： CANON KABUSHIKI KAISHA
发明人： Kazuya Shimomura , Naotoshi Ogawa
IPC分类号： G02B15/08 , G02B13/02 , G02B5/20
CPC分类号： G02B15/08 , G02B5/205 , G02B7/006 , G02B13/02
摘要： An image pickup apparatus includes: a mount to which an interchangeable lens is mountable; an image sensor; an optical system having a refractive power and imaging an object point located on an image side of a most-object-side surface of the optical system onto the image sensor; and an optical filter arranged between the optical system and the image sensor, and a distance on an optical axis from a flange surface of the mount to the object point located on the image side of the most-object-side surface, a distance on the optical axis from the flange surface of the mount to the image pickup element, and a lateral magnification of the optical system when the interchangeable lens is mounted to the image pickup apparatus and the object point located on the image side of the most-object-side surface, is imaged onto the image pickup element, are appropriately set.
摘要翻译：图像拾取装置包括：可安装可互换透镜的安装件; 图像传感器; 光学系统，其具有屈光力并将位于所述光学系统的最物体侧表面的像侧上的物点成像到所述图像传感器上; 以及布置在所述光学系统和所述图像传感器之间的光学滤光器以及从所述安装件的凸缘表面到位于最物体侧表面的像侧上的物体点的光轴上的距离，光轴从安装件的凸缘表面到图像拾取元件，以及当可更换镜头安装到图像拾取装置时的光学系统的横向放大率和位于最物体侧图像侧的物体点表面，被成像到图像拾取元件上，被适当地设定。

5. 发明授权

US11347034B2 Zoom lens and image pickup apparatus 有权
公开(公告)号：US11347034B2
公开(公告)日：2022-05-31
申请号：US16278893
申请日：2019-02-19
申请人： CANON KABUSHIKI KAISHA
发明人： Masao Hori , Kazuya Shimomura , Naotoshi Ogawa
IPC分类号： G02B15/16 , G02B13/02
摘要： A zoom lens includes, from the object side, a positive first lens unit not moving for zooming, a negative second lens unit moving for zooming, and a positive third lens unit moving for zooming. The second lens unit includes a negative lens closest to the object side, the third lens unit consists of a 3-1 sub-lens unit and a 3-2 sub-lens unit from the object side. Conditional expressions −18.0

6. 发明授权

US11187878B2 Zoom lens and image pickup apparatus 有权
公开(公告)号：US11187878B2
公开(公告)日：2021-11-30
申请号：US16987675
申请日：2020-08-07
申请人： CANON KABUSHIKI KAISHA
发明人： Naotoshi Ogawa
IPC分类号： G02B15/14
摘要： Provided is a zoom lens including, in order from an object side to an image side: a front lens unit having a positive refractive power and configured not to move for zooming; one or two intermediate lens units having a negative refractive power as a whole and configured to move for zooming; a first rear lens unit having a negative refractive power and configured to move for zooming; a second rear lens unit having a positive refractive power and configured to move for zooming; and a third rear lens unit having a positive refractive power and configured not to move for zooming. In the zoom lens, all intervals between adjacent lens units are changed for zooming, and focal lengths of the front lens unit, the one or two intermediate lens units, the first rear lens unit, and the zoom lens at a telephoto end are appropriately set.

7. 发明授权

US10955647B2 Zoom lens and image pickup apparatus 有权
公开(公告)号：US10955647B2
公开(公告)日：2021-03-23
申请号：US16287432
申请日：2019-02-27
申请人： CANON KABUSHIKI KAISHA
发明人： Naotoshi Ogawa , Masao Hori , Kazuya Shimomura
IPC分类号： G02B15/173 , G02B13/00 , G02B13/02
摘要： A zoom lens includes, in order from the object side, a positive first lens unit not moving for zooming, a negative second lens unit moving for zooming, positive third and fourth lens units moving for zooming, and a positive fifth lens unit not moving for zooming. Intervals between adjacent ones of the first to fifth lens units change for zooming. The third lens unit consists of positive, positive, and negative lenses in order from the object side. Appropriate settings are made to the zoom lens's focal lengths at the wide angle and telephoto ends, the lateral magnifications of the second lens unit at the wide angle and telephoto ends, the focal lengths of the third lens unit and the negative lens in the third lens unit, and the average Abbe number of the positive lenses and the Abbe number of the negative lens in the third lens unit.

8. 发明申请

US20210048654A1 ZOOM LENS AND IMAGE PICKUP APPARATUS 有权
公开(公告)号：US20210048654A1
公开(公告)日：2021-02-18
申请号：US16987675
申请日：2020-08-07
申请人： CANON KABUSHIKI KAISHA
发明人： Naotoshi Ogawa
IPC分类号： G02B15/14
摘要： Provided is a zoom lens including, in order from an object side to an image side: a front lens unit having a positive refractive power and configured not to move for zooming; one or two intermediate lens units having a negative refractive power as a whole and configured to move for zooming; a first rear lens unit having a negative refractive power and configured to move for zooming; a second rear lens unit having a positive refractive power and configured to move for zooming; and a third rear lens unit having a positive refractive power and configured not to move for zooming. In the zoom lens, all intervals between adjacent lens units are changed for zooming, and focal lengths of the front lens unit, the one or two intermediate lens units, the first rear lens unit, and the zoom lens at a telephoto end are appropriately set.

9. 发明申请

US20210405336A1 ZOOM LENS AND IMAGE PICKUP APPARATUS 有权
公开(公告)号：US20210405336A1
公开(公告)日：2021-12-30
申请号：US17355730
申请日：2021-06-23
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoya Yamada , Masaru Sakamoto , Yu Inomoto , Naotoshi Ogawa
IPC分类号： G02B15/20 , G02B27/00
摘要： A zoom lens includes, from an object side a first lens unit (a positive refractive power) configured not to move for zooming, two or more intermediate lens units configured to move in zooming, and a rear lens unit (a positive refractive power), wherein an interval between each pair of adjacent lens units changes in zooming, the first lens unit includes, from the object side, a first lens subunit (a negative refractive power) configured not to move for focusing, a second lens subunit (a positive refractive power) configured to move for focusing, and a third lens subunit (a positive refractive power), the zoom lens satisfies specific inequalities concerning a focal length of the first lens unit, a length on an optical axis from a last surface to a rear principal point of the first lens unit, and a focal length of the zoom lens at a telephoto end.

10. 发明授权

US11143850B2 Zoom lens and image pickup apparatus 有权
公开(公告)号：US11143850B2
公开(公告)日：2021-10-12
申请号：US16674352
申请日：2019-11-05
申请人： CANON KABUSHIKI KAISHA
发明人： Masao Hori , Naotoshi Ogawa
IPC分类号： G02B15/14 , G02B7/28 , G03B5/02 , G03B3/10 , H04N5/232
摘要： Provided is a zoom lens including, in order from object side: a positive first unit configured not to be moved for zooming; one or two negative second units configured to be moved for zooming; a stop configured to reduce an outer part of an off-axis light; two or three third units configured to be moved for zooming; and a fourth unit, in which focal lengths of the first unit and the second units, a distance on an optical axis from the stop to a vertex of a surface closest to the object side in the third units under a zoom state in which F-drop starts, and a distance on the optical axis from a vertex of a surface closest to the image side in the second units to the vertex of the surface closest to the object side in the third units under the zoom state are appropriately set.

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