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1. 发明申请

US20190079269A1 ZOOM LENS AND IMAGE PICKUP APPARATUS 审中-公开
公开(公告)号：US20190079269A1
公开(公告)日：2019-03-14
申请号：US16125152
申请日：2018-09-07
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B9/64 , G02B13/06 , G02B13/02 , H04N5/232 , G02B7/04
CPC分类号： G02B9/64 , G02B7/04 , G02B13/02 , G02B13/06 , G02B15/17 , H04N5/23248
摘要： Provided is a zoom lens including a plurality of lens units, in which an interval between each pair of adjacent lens units is changed during zooming. The plurality of lens units consist of, 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 negative refractive power; and a rear lens group including at least one lens unit. An interval between the second lens unit and the third lens unit becomes larger at a telephoto end than at a wide angle end. The third lens unit is moved during focusing. Focal lengths of the second lens unit and the third lens unit, a focal length of the zoom lens at the wide angle end, and a back focus at the wide angle end are appropriately set.

2. 发明授权

US10222594B2 Zoom lens and image pickup apparatus including the same 有权
公开(公告)号：US10222594B2
公开(公告)日：2019-03-05
申请号：US15657501
申请日：2017-07-24
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/14 , G02B15/20 , G02B15/167 , G02B27/00 , G02B15/173 , G02B5/08 , G02B27/42
摘要： A zoom lens includes, in order from an object side to an image side, a positive first lens unit, a negative second lens unit, a middle lens group including at least one lens unit, a negative N minus second lens unit, a negative N minus first lens unit, and a positive Nth lens unit, where N is an integer of six or more, in which distances between the adjacent lens units change during zooming, the first lens unit moves toward the object side during zooming from a wide-angle end to a telephoto end, the N minus second lens unit moves during focusing, and a total lens length at the wide-angle end, a backfocus at the wide-angle end, and a lateral magnification of a combined system of the N minus first lens unit and the Nth lens unit at the wide-angle end are set appropriately.

3. 发明申请

US20160209631A1 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 有权
标题翻译：变焦镜头和图像拾取装置包括它们
公开(公告)号：US20160209631A1
公开(公告)日：2016-07-21
申请号：US14993155
申请日：2016-01-12
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/173 , G02B27/00
CPC分类号： G02B15/173 , G02B27/0025
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 rear lens group including at least one lens unit, in which an interval between each pair of adjacent lens units is changed during zooming, and materials of lenses included in a lens unit arranged closest to the image side are appropriately set.
摘要翻译：本发明提供一种变焦透镜，其包括从物体侧到像侧的顺序：具有正折射光焦度的第一透镜单元; 具有负屈光力的第二透镜单元; 具有正屈光力的第三透镜单元; 以及包括至少一个透镜单元的后透镜组，其中每对相邻透镜单元之间的间隔在变焦期间改变，并且适当地设置最靠近图像侧布置在透镜单元中的透镜的材料。

4. 发明申请

US20220269054A1 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME 有权
公开(公告)号：US20220269054A1
公开(公告)日：2022-08-25
申请号：US17740421
申请日：2022-05-10
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/14 , H04N5/232 , G02B13/00
摘要： A zoom lens consisting of, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear lens unit having one or more lens units and having a positive refractive power as a whole. Intervals between adjacent lens units change during zooming. The first lens unit has at least three meniscus lenses each having a negative refractive power and a convex shape toward the object side. At least one of the at least three meniscus lenses includes an aspherical surface having a positive aspherical amount. A predetermined condition is satisfied.

5. 发明授权

US11372219B2 Zoom lens and image pickup apparatus having the same 有权
公开(公告)号：US11372219B2
公开(公告)日：2022-06-28
申请号：US16985890
申请日：2020-08-05
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/14 , H04N5/232 , G02B13/00
摘要： A zoom lens consisting of, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear lens unit having one or more lens units and having a positive refractive power as a whole. Intervals between adjacent lens units change during zooming. The first lens unit has at least three meniscus lenses each having a negative refractive power and a convex shape toward the object side. At least one of the at least three meniscus lenses includes an aspherical surface having a positive aspherical amount. A predetermined condition is satisfied.

6. 发明授权

US09116335B2 Zoom lens and image pickup apparatus including the same 有权
标题翻译：缩放透镜和包括其的图像拾取装置
公开(公告)号：US09116335B2
公开(公告)日：2015-08-25
申请号：US14275685
申请日：2014-05-12
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/16 , G02B13/00
CPC分类号： G02B15/16 , G02B13/009 , G02B15/173
摘要： A zoom lens includes, in order from an object side to an image side thereof, 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 rear lens group including one or more lens units. A distance between adjacent ones of the lens units changes during zooming. The second lens unit and the third lens unit each include a resin lens element. A focal length f2p of the resin lens element included in the second lens unit, a focal length f3p of the resin lens element included in the third lens unit, and a focal length ft of the zoom lens at a telephoto end are set to satisfy predetermined mathematical conditions.
摘要翻译：变焦透镜从物体侧到其像侧依次包括具有正折光力的第一透镜单元，具有负屈光力的第二透镜单元，具有正折光力的第三透镜单元，以及后折射透镜单元透镜组包括一个或多个透镜单元。在变焦期间相邻镜头单元之间的距离发生变化。第二透镜单元和第三透镜单元各自包括树脂透镜元件。包括在第二透镜单元中的树脂透镜元件的焦距f2p，包括在第三透镜单元中的树脂透镜元件的焦距f3p和在望远端处的变焦透镜的焦距ft被设置为满足预定的数学条件。

7. 发明申请

US20140340544A1 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 有权
标题翻译：变焦镜头和图像拾取装置包括它们
公开(公告)号：US20140340544A1
公开(公告)日：2014-11-20
申请号：US14275685
申请日：2014-05-12
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/16 , G02B13/00
CPC分类号： G02B15/16 , G02B13/009 , G02B15/173
摘要： A zoom lens includes, in order from an object side to an image side thereof, 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 rear lens group including one or more lens units. A distance between adjacent ones of the lens units changes during zooming. The second lens unit and the third lens unit each include a resin lens element. A focal length f2p of the resin lens element included in the second lens unit, a focal length f3p of the resin lens element included in the third lens unit, and a focal length ft of the zoom lens at a telephoto end are set to satisfy predetermined mathematical conditions.
摘要翻译：变焦透镜从物体侧到其像侧依次包括具有正折光力的第一透镜单元，具有负屈光力的第二透镜单元，具有正折光力的第三透镜单元，以及后折射透镜单元透镜组包括一个或多个透镜单元。在变焦期间相邻镜头单元之间的距离发生变化。第二透镜单元和第三透镜单元各自包括树脂透镜元件。包括在第二透镜单元中的树脂透镜元件的焦距f2p，包括在第三透镜单元中的树脂透镜元件的焦距f3p和在望远端处的变焦透镜的焦距ft被设置为满足预定的数学条件。

8. 发明授权

US11644654B2 Zoom lens and image pickup apparatus having the same 有权
公开(公告)号：US11644654B2
公开(公告)日：2023-05-09
申请号：US17740421
申请日：2022-05-10
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B15/14 , G02B13/00 , H04N23/698
CPC分类号： G02B15/144115 , G02B13/009 , H04N23/698
摘要： A zoom lens consisting of, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear lens unit having one or more lens units and having a positive refractive power as a whole. Intervals between adjacent lens units change during zooming. The first lens unit has at least three meniscus lenses each having a negative refractive power and a convex shape toward the object side. At least one of the at least three meniscus lenses includes an aspherical surface having a positive aspherical amount. A predetermined condition is satisfied.

9. 发明申请

US20220365320A1 OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS 有权
公开(公告)号：US20220365320A1
公开(公告)日：2022-11-17
申请号：US17729087
申请日：2022-04-26
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura
IPC分类号： G02B13/00 , G03B5/02 , G02B3/00 , G02B9/64
摘要： An optical system includes a movable unit movable in a direction eccentric to an optical axis. The movable unit includes a resin layer and a lens cemented together and satisfies a predetermined condition.

10. 发明授权

US11435563B2 Zoom lens, imaging apparatus and imaging system having the same 有权
公开(公告)号：US11435563B2
公开(公告)日：2022-09-06
申请号：US16778365
申请日：2020-01-31
申请人： CANON KABUSHIKI KAISHA
发明人： Kohei Kimura , Takahiro Hatada
IPC分类号： G02B15/14 , G02B13/18 , G03B5/04 , G02B27/64 , G02B15/20
摘要： A zoom lens comprising, 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 positive refractive power an interval between adjacent lens units changing and the first to fourth lens units moving during zooming. An image blur is corrected by moving a sub-unit having a negative refractive power as a whole in the third lens unit orthogonally to an optical axis. A predetermined conditions are satisfied.

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