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1. 发明授权

US10353185B2 Conversion lens, and imaging optical system and optical apparatus including conversion lens 有权
公开(公告)号：US10353185B2
公开(公告)日：2019-07-16
申请号：US15707102
申请日：2017-09-18
申请人： CANON KABUSHIKI KAISHA
发明人： Shunji Iwamoto , Shinichiro Saito , Satoshi Maetaki , Takahiro Hatada , Suguru Inoue
IPC分类号： G02B15/163 , G02B9/62 , C03C3/097 , G02B27/00
摘要： A conversion lens having a negative refractive power includes a positive lens GP. The positive lens GP satisfies all the following conditional expressions: 30≤νd≤40, 1.225≤[nd−(14.387/νd)]≤1.276, and 0.4300≤[θgF−(2.9795/νd)]≤0.5010, where νd is an Abbe number of the positive lens GP, θgF is a partial dispersion ratio of the positive lens GP for g-line and F-line, and nd is a refractive index of the positive lens GP for d-line.

2. 发明授权

US10247926B2 Optical system and optical apparatus including the same 有权
公开(公告)号：US10247926B2
公开(公告)日：2019-04-02
申请号：US15706986
申请日：2017-09-18
申请人： CANON KABUSHIKI KAISHA
发明人： Shunji Iwamoto , Shinichiro Saito , Satoshi Maetaki , Takahiro Hatada , Suguru Inoue
IPC分类号： G02B13/18 , G02B15/15 , G02B15/177 , H04N5/225
摘要： An optical system includes an optical element. When the optical element is disposed on a magnification side with respect to an intersection point between an optical axis and a chief paraxial ray, the optical element is a positive lens. When the optical element is disposed on a reduction side with respect to the intersection point, the optical element is a negative lens. The optical element satisfies all of the following conditional expressions: 30≤νd≤40 1.225≤[nd−(14.387/νd)]≤1.276 0.4300≤[θgF−(2.9795/νd)]≤0.5010 where νd is Abbe number of the optical element, θgF is a partial dispersion ratio of the optical element for g-line and F-line, and nd is a refractive index of the optical element for d-line.

3. 发明申请

US20180095256A1 OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20180095256A1
公开(公告)日：2018-04-05
申请号：US15707221
申请日：2017-09-18
申请人： CANON KABUSHIKI KAISHA
发明人： Shunji Iwamoto , Shinichiro Saito , Satoshi Maetaki , Takahiro Hatada , Suguru Inoue
IPC分类号： G02B15/163 , G02B9/64 , C03C3/064
CPC分类号： G02B15/163 , C03C3/064 , G02B9/64 , G02B13/18 , G02B15/177
摘要： An optical system includes a negative lens satisfying the following conditional expressions: 30≦νd≦40, 1.225≦[nd−(14.387/νd)]≦1.276, and 0.4300≦[θgF−(2.9795/νd)]≦0.5010, where νd is an Abbe number of the negative lens, θgF is a partial dispersion ratio of the negative lens at a g-line and an F-line, and nd is a refractive index of the negative lens at a d-line.

4. 发明申请

US20180095242A1 OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20180095242A1
公开(公告)日：2018-04-05
申请号：US15707203
申请日：2017-09-18
申请人： CANON KABUSHIKI KAISHA
发明人： Shunji Iwamoto , Shinichiro Saito , Satoshi Maetaki , Takahiro Hatada , Suguru Inoue
IPC分类号： G02B9/64 , G02B9/12 , G02B9/34 , G02B13/00 , G02B15/163 , G02B7/36
CPC分类号： G02B9/64 , G02B7/36 , G02B9/12 , G02B9/34 , G02B13/004 , G02B15/163 , G02B15/173 , G02B27/0062
摘要： An optical system used in an imaging apparatus includes an optical element. In a case where the optical element is disposed on a magnification side with respect to an intersection point of an optical axis and a chief paraxial ray, the optical element is a negative lens, and in a case where the optical element is disposed on a reduction side with respect to the intersection point, the optical element is a positive lens. The optical element is configured to satisfy all of the following conditional expressions: 30≦νd≦40 1.225≦[nd−(14.387/νd)]≦1.276 0.4300≦[θgF−(2.9795/νd)]≦0.5010, where νd represents an Abbe number of the optical element, θgF is a partial dispersion ratio of the optical element for g-line and F-line, and nd is a refractive index of the optical element for d-line.

5. 发明授权

US09645370B2 Zoom lens and image pickup apparatus having the same 有权
公开(公告)号：US09645370B2
公开(公告)日：2017-05-09
申请号：US15165215
申请日：2016-05-26
申请人： CANON KABUSHIKI KAISHA
发明人： Satoshi Maetaki
IPC分类号： G02B15/22
CPC分类号： G02B15/22 , G02B15/14
摘要： A zoom lens has a first positive lens unit having a positive refractive power, a second positive lens unit arranged adjacent to the first positive lens unit on its image side, a third positive lens unit arranged adjacent to the second positive lens unit on its image side, and a front lens group arranged on the object side of the first positive lens unit. Appropriate conditions concerning the refractive power of the front lens group, the focal length of the second positive lens unit, and the focal length of the zoom lens at the wide angle end are given.

6. 发明授权

US11800226B2 Control apparatus, image pickup apparatus, lens apparatus, control method, and storage medium, that provide an image-stabilization driving amount for a predetermined image point position 有权
公开(公告)号：US11800226B2
公开(公告)日：2023-10-24
申请号：US17680963
申请日：2022-02-25
申请人： CANON KABUSHIKI KAISHA
发明人： Yuki Shinzato , Tomoki Tokita , Tomohiro Ino , Satoshi Maetaki
IPC分类号： H04N23/68 , G02B27/64 , H04N23/55
CPC分类号： H04N23/687 , G02B27/646 , H04N23/55 , H04N23/683
摘要： A control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first acquiring task configured to acquire information on an image shift sensitivity to a tilt of an imaging optical system corresponding to an image point position of the imaging optical system, which information includes an influence of a distortion of the imaging optical system, and a second acquiring task configured to acquire an image-stabilization driving amount that is used for an image stabilization by an image stabilizer configured to provide the image stabilization. The second acquiring task acquires the image-stabilization driving amount corresponding to a predetermined image point position using the information on the image shift sensitivity corresponding to the predetermined image point position.

7. 发明申请

US20220321786A1 CONTROL APPARATUS, IMAGE PICKUP APPARATUS, LENS APPARATUS, CAMERA SYSTEM, CONTROL METHOD, AND MEMORY MEDIUM 有权
公开(公告)号：US20220321786A1
公开(公告)日：2022-10-06
申请号：US17701816
申请日：2022-03-23
申请人： CANON KABUSHIKI KAISHA
发明人： Yuki Shinzato , Tomoki Tokita , Tomohiro Ino , Satoshi Maetaki
IPC分类号： H04N5/232 , H04N5/225 , G02B27/64
摘要： A control apparatus comprising at least one processor or circuit configured to execute a plurality of tasks includes a first acquisition task configured to acquire information on image shift sensitivity relative to decentering of an image stabilizing optical system, the information being associated with an image point position of an image pickup optical system, the image pickup optical system including the image stabilizing optical system configured to perform image stabilization, and a second acquisition task configured to acquire a first image stabilizing driving amount of the image stabilizing optical system during the image stabilization. The second acquisition task is configured to acquire the first image stabilizing driving amount associated with a predetermined image point position by using the information on the image shift sensitivity associated with the predetermined image point position.

8. 发明申请

US20220286615A1 CONTROL APPARATUS, IMAGE PICKUP APPARATUS, LENS APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM 有权
公开(公告)号：US20220286615A1
公开(公告)日：2022-09-08
申请号：US17680963
申请日：2022-02-25
申请人： CANON KABUSHIKI KAISHA
发明人： Yuki Shinzato , Tomoki Tokita , Tomohiro Ino , Satoshi Maetaki
IPC分类号： H04N5/232 , G02B27/64 , H04N5/225
摘要： A control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first acquiring task configured to acquire information on an image shift sensitivity to a tilt of an imaging optical system corresponding to an image point position of the imaging optical system, which information includes an influence of a distortion of the imaging optical system, and a second acquiring task configured to acquire an image-stabilization driving amount that is used for an image stabilization by an image stabilizer configured to provide the image stabilization. The second acquiring task acquires the image-stabilization driving amount corresponding to a predetermined image point position using the information on the image shift sensitivity corresponding to the predetermined image point position.

9. 发明申请

US20180045930A1 REAR CONVERTER OPTICAL SYSTEM AND IMAGING APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20180045930A1
公开(公告)日：2018-02-15
申请号：US15671699
申请日：2017-08-08
申请人： CANON KABUSHIKI KAISHA
发明人： Satoshi Maetaki
IPC分类号： G02B15/20 , G02B15/177 , G02B15/173
CPC分类号： G02B15/20 , G02B15/08 , G02B15/17 , G02B15/173 , G02B15/177
摘要： Provided is a rear converter optical system which is detachably mounted on an image side of a main lens system to increase a focal length of the main lens system, in which an effective diameter Φim of an imaging area of the main lens system, an effective diameter Φcr of a lens surface closest to the image side of the rear converter optical system, a lateral magnification βc of the rear converter optical system in the case where the rear converter optical system is mounted on the main lens system, a backfocus skc in the case where the rear converter optical system is mounted on the main lens system are appropriately set.

10. 发明申请

US20140029109A1 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME 有权
标题翻译：变焦镜头和图像拾取器具
公开(公告)号：US20140029109A1
公开(公告)日：2014-01-30
申请号：US13950634
申请日：2013-07-25
申请人： CANON KABUSHIKI KAISHA
发明人： Satoshi Maetaki
IPC分类号： G02B15/14
CPC分类号： G02B15/14 , G02B15/177
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a focus lens unit having a negative refractive power, configured to move in focusing, and a final lens unit having a positive refractive power, disposed closest to the image side. The focus lens unit and the final lens unit are disposed so as to be adjacent to each other, each lens unit moves so that a distance between adjacent lens units changes in zooming, and a focal length of the final lens unit fimg, a focal length of the focus lens unit ff, and a focal length of an entire system at a wide-angle end fw are appropriately set.
摘要翻译：变焦透镜从物体侧到像侧依次包括具有负折光力的第一透镜单元，具有正折光力的第二透镜单元，具有负屈光力的聚焦透镜单元，聚焦和最靠近图像侧设置的具有正折光力的最终透镜单元。焦点透镜单元和最终透镜单元被设置成彼此相邻，每个透镜单元移动，使得相邻透镜单元之间的距离变焦，并且最终透镜单元的焦距fimg，焦距，并且适当地设定广角端fw处的整个系统的焦距。

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