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1. 发明申请

US20190271830A1 IMAGE PICKUP OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20190271830A1
公开(公告)日：2019-09-05
申请号：US16290242
申请日：2019-03-01
申请人： CANON KABUSHIKI KAISHA
发明人： Kentaro Mori
IPC分类号： G02B13/00 , G02B9/12 , G02B27/00 , G02B15/177
摘要： Provided is an optical system including, in order from object side to image side, a positive first lens unit (LU), a positive second LU and a third LU, in which intervals between adjacent LUs are changed during focusing. The second LU moves toward object side during focusing from infinity to the closest distance. In order from object side to image side, second LU includes at least one positive lens, a negative lens Ln having a meniscus shape that is concave toward image side, an aperture stop, and a cemented lens consisting of a plurality of lenses and an optical element Gp cemented to one another and having a concave lens surface on object side, then third LU includes a positive lens and a negative lens. A refractive index of a material of Ln with respect to d-line and a partial dispersion characteristic of a material of Gp are appropriately set.

2. 发明授权

US11892708B2 Stereoscopic optical system and image pickup apparatus 有权
公开(公告)号：US11892708B2
公开(公告)日：2024-02-06
申请号：US17560655
申请日：2021-12-23
申请人： CANON KABUSHIKI KAISHA
发明人： Takayoshi Yokoyama , Kentaro Mori
IPC分类号： G02B9/12 , H04N13/207 , G02B13/18 , G02B5/00
CPC分类号： G02B9/12 , H04N13/207 , G02B5/005 , G02B13/18
摘要： A stereoscopic optical system includes two parallel optical systems that each include, in order from an object side to an image side, a front unit having a negative refractive power, an intermediate unit having two reflective surfaces, and a rear unit. A distance between optical axes of rear units is smaller than that between optical axes of front units in the two optical systems due to bending of an optical path by the two reflective surfaces. At least one of the intermediate unit and the rear unit has a positive refractive power. The front unit includes, in order from the object side to the image side, a first subunit consisting of one or more negative lenses disposed on the object side of a positive lens closest to an object in the front unit, and a second subunit having a positive power. A predetermined condition is satisfied.

3. 发明申请

US20220221688A1 STEREOSCOPIC OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS 有权
公开(公告)号：US20220221688A1
公开(公告)日：2022-07-14
申请号：US17560655
申请日：2021-12-23
申请人： CANON KABUSHIKI KAISHA
发明人： Takayoshi Yokoyama , Kentaro Mori
IPC分类号： G02B9/12 , H04N13/207
摘要： A stereoscopic optical system includes two parallel optical systems that each include, in order from an object side to an image side, a front unit having a negative refractive power, an intermediate unit having two reflective surfaces, and a rear unit. A distance between optical axes of rear units is smaller than that between optical axes of front units in the two optical systems due to bending of an optical path by the two reflective surfaces. At least one of the intermediate unit and the rear unit has a positive refractive power. The front unit includes, in order from the object side to the image side, a first subunit consisting of one or more negative lenses disposed on the object side of a positive lens closest to an object in the front unit, and a second subunit having a positive power. A predetermined condition is satisfied.

4. 发明授权

US10866390B2 Optical system and imaging apparatus having the same 有权
公开(公告)号：US10866390B2
公开(公告)日：2020-12-15
申请号：US16277834
申请日：2019-02-15
申请人： CANON KABUSHIKI KAISHA
发明人： Kentaro Mori
IPC分类号： G02B13/18 , G02B9/64 , G02B9/10 , G02B9/04 , G02B5/00 , G02B13/00
CPC分类号： G02B9/64 , G02B13/18 , G02B5/005 , G02B9/04 , G02B9/10 , G02B13/006 , G02B13/0045
摘要： An optical system includes a first lens unit having positive refractive power, and a second lens unit. The first lens unit includes, in order from an object side to an image side, a positive lens, a positive lens, a positive lens, a negative meniscus lens having a concave surface on the image side, a diaphragm SP, and at least one lens. The second lens unit includes a positive lens and a negative lens. At the time of focusing from infinity to close range, the first lens unit moves to the object side to change a distance on the optical axis between the first lens unit and the second lens unit. The optical system satisfies predetermined conditional expressions.

5. 发明申请

US20160349482A1 IMAGE PICKUP OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 有权
标题翻译：图像拾取光学系统和图像拾取装置，包括它们
公开(公告)号：US20160349482A1
公开(公告)日：2016-12-01
申请号：US15160273
申请日：2016-05-20
申请人： CANON KABUSHIKI KAISHA
发明人： Takayoshi Yokoyama , Kentaro Mori
IPC分类号： G02B13/00 , G02B27/00
CPC分类号： G02B13/0035 , G02B27/0025
摘要： An image pickup optical system includes: 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; and a third lens unit having a negative refractive power. The first lens unit includes one negative lens or two negative lenses, the second lens unit includes a positive lens closest to the object side, and includes a plurality of lenses, the third lens unit includes, from the object side to the image side, a negative lens and a positive lens. A focal length f1 of the first lens unit, a focal length f3 of the third lens unit, a focal length fGr of the positive lens included in the third lens unit, an entire lens length L, and a focal length f of the image pickup optical system are set appropriately.
摘要翻译：一种摄像光学系统包括：从物体侧到像侧，具有负折光力的第一透镜单元; 具有正屈光力的第二透镜单元; 以及具有负屈光力的第三透镜单元。第一透镜单元包括一个负透镜或两个负透镜，第二透镜单元包括最靠近物侧的正透镜，并且包括多个透镜，第三透镜单元包括从物侧到像侧负透镜和正透镜。第一透镜单元的焦距f1，第三透镜单元的焦距f3，第三透镜单元中包括的正透镜的焦距fGr，透镜的整体长度L和图像拾取器的焦距f 光学系统设置适当。

6. 发明授权

US11092780B2 Image pickup optical system and image pickup apparatus including the same 有权
公开(公告)号：US11092780B2
公开(公告)日：2021-08-17
申请号：US16290242
申请日：2019-03-01
申请人： CANON KABUSHIKI KAISHA
发明人： Kentaro Mori
IPC分类号： G02B13/00 , G02B15/177 , G02B27/00 , G02B9/12
摘要： Provided is an optical system including, in order from object side to image side, a positive first lens unit (LU), a positive second LU and a third LU, in which intervals between adjacent LUs are changed during focusing. The second LU moves toward object side during focusing from infinity to the closest distance. In order from object side to image side, second LU includes at least one positive lens, a negative lens Ln having a meniscus shape that is concave toward image side, an aperture stop, and a cemented lens consisting of a plurality of lenses and an optical element Gp cemented to one another and having a concave lens surface on object side, then third LU includes a positive lens and a negative lens. A refractive index of a material of Ln with respect to d-line and a partial dispersion characteristic of a material of Gp are appropriately set.

7. 发明授权

US10527825B2 Image pickup optical system and image pickup apparatus having the same 有权
公开(公告)号：US10527825B2
公开(公告)日：2020-01-07
申请号：US15817929
申请日：2017-11-20
申请人： CANON KABUSHIKI KAISHA
发明人： Kentaro Mori
IPC分类号： G02B13/02 , G02B27/42 , G02B9/64 , G02B13/18 , G02B7/04 , G02B7/02
摘要： An image pickup optical system of the present invention includes, in order from the object side to the image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, an aperture stop, and a third lens unit, and the second lens unit moves during focusing. The first lens unit consists of, in order from the object side to the image side, a first lens sub-unit having a positive refractive power, a second lens sub-unit having a negative refractive power, and a third lens sub-unit having a positive refractive power, and the focal length of the second lens sub-unit and the focal length of the image pickup optical system are appropriately set.

8. 发明申请

US20190265439A1 OPTICAL SYSTEM AND IMAGING APPARATUS HAVING THE SAME 审中-公开
公开(公告)号：US20190265439A1
公开(公告)日：2019-08-29
申请号：US16277834
申请日：2019-02-15
申请人： CANON KABUSHIKI KAISHA
发明人： Kentaro Mori
IPC分类号： G02B9/64 , G02B13/18
摘要： An optical system includes a first lens unit having positive refractive power, and a second lens unit. The first lens unit includes, in order from an object side to an image side, a positive lens, a positive lens, a positive lens, a negative meniscus lens having a concave surface on the image side, a diaphragm SP, and at least one lens. The second lens unit includes a positive lens and a negative lens. At the time of focusing from infinity to close range, the first lens unit moves to the object side to change a distance on the optical axis between the first lens unit and the second lens unit. The optical system satisfies predetermined conditional expressions.

9. 发明申请

US20180143409A1 IMAGE PICKUP OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS HAVING THE SAME 审中-公开
公开(公告)号：US20180143409A1
公开(公告)日：2018-05-24
申请号：US15817929
申请日：2017-11-20
申请人： CANON KABUSHIKI KAISHA
发明人： Kentaro Mori
IPC分类号： G02B13/02 , G02B13/18 , G02B27/42
CPC分类号： G02B13/02 , G02B7/021 , G02B7/04 , G02B9/64 , G02B13/18 , G02B27/4211
摘要： An image pickup optical system of the present invention includes, in order from the object side to the image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, an aperture stop, and a third lens unit, and the second lens unit moves during focusing. The first lens unit consists of, in order from the object side to the image side, a first lens sub-unit having a positive refractive power, a second lens sub-unit having a negative refractive power, and a third lens sub-unit having a positive refractive power, and the focal length of the second lens sub-unit and the focal length of the image pickup optical system are appropriately set.

10. 发明授权

US09977220B2 Image pickup optical system and image pickup apparatus including the same 有权
公开(公告)号：US09977220B2
公开(公告)日：2018-05-22
申请号：US15160273
申请日：2016-05-20
申请人： CANON KABUSHIKI KAISHA
发明人： Takayoshi Yokoyama , Kentaro Mori
IPC分类号： G02B13/00 , G02B27/00
CPC分类号： G02B13/0035 , G02B27/0025
摘要： An image pickup optical system includes: 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; and a third lens unit having a negative refractive power. The first lens unit includes one negative lens or two negative lenses, the second lens unit includes a positive lens closest to the object side, and includes a plurality of lenses, the third lens unit includes, from the object side to the image side, a negative lens and a positive lens. A focal length f1 of the first lens unit, a focal length f3 of the third lens unit, a focal length fGr of the positive lens included in the third lens unit, an entire lens length L, and a focal length f of the image pickup optical system are set appropriately.

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