JP7154896B2 - ズームレンズ、撮像装置及びエクステンダレンズ群 - Google Patents

ズームレンズ、撮像装置及びエクステンダレンズ群 Download PDF

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Publication number
JP7154896B2
JP7154896B2 JP2018166840A JP2018166840A JP7154896B2 JP 7154896 B2 JP7154896 B2 JP 7154896B2 JP 2018166840 A JP2018166840 A JP 2018166840A JP 2018166840 A JP2018166840 A JP 2018166840A JP 7154896 B2 JP7154896 B2 JP 7154896B2
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Japan
Prior art keywords
lens
lens group
extender
group
positive
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JP2018166840A
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English (en)
Japanese (ja)
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JP2020042062A5 (https=
JP2020042062A (ja
Inventor
剛一 佐久間
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2018166840A priority Critical patent/JP7154896B2/ja
Priority to US16/551,993 priority patent/US11156810B2/en
Publication of JP2020042062A publication Critical patent/JP2020042062A/ja
Publication of JP2020042062A5 publication Critical patent/JP2020042062A5/ja
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Publication of JP7154896B2 publication Critical patent/JP7154896B2/ja
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/10—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G02B15/08—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part by changing the rear part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
    • G02B15/1441—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive
    • G02B15/144113—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive arranged +-++
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP2018166840A 2018-09-06 2018-09-06 ズームレンズ、撮像装置及びエクステンダレンズ群 Active JP7154896B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018166840A JP7154896B2 (ja) 2018-09-06 2018-09-06 ズームレンズ、撮像装置及びエクステンダレンズ群
US16/551,993 US11156810B2 (en) 2018-09-06 2019-08-27 Zoom lens, image pickup apparatus, and extender lens unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018166840A JP7154896B2 (ja) 2018-09-06 2018-09-06 ズームレンズ、撮像装置及びエクステンダレンズ群

Publications (3)

Publication Number Publication Date
JP2020042062A JP2020042062A (ja) 2020-03-19
JP2020042062A5 JP2020042062A5 (https=) 2021-10-14
JP7154896B2 true JP7154896B2 (ja) 2022-10-18

Family

ID=69719590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018166840A Active JP7154896B2 (ja) 2018-09-06 2018-09-06 ズームレンズ、撮像装置及びエクステンダレンズ群

Country Status (2)

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US (1) US11156810B2 (https=)
JP (1) JP7154896B2 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7379017B2 (ja) * 2019-08-20 2023-11-14 キヤノン株式会社 エクステンダレンズ群、ズームレンズ、および撮像装置
JP7152445B2 (ja) * 2019-09-30 2022-10-12 富士フイルム株式会社 エクステンダーレンズ、光学系、および撮像装置
US11675173B2 (en) 2019-09-30 2023-06-13 Fujifilm Corporation Extender lens, optical system, and imaging apparatus
JP7551382B2 (ja) * 2020-07-30 2024-09-17 キヤノン株式会社 観察装置及びそれを有する撮像装置
CN119644555B (zh) * 2025-02-12 2025-05-16 苏州高视半导体技术有限公司 一种低畸变筒镜及显微系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012123032A (ja) 2010-12-06 2012-06-28 Canon Inc テレコンバータレンズおよびそれを有する撮像装置
JP2016099396A (ja) 2014-11-18 2016-05-30 キヤノン株式会社 ズームレンズ及び撮像装置
JP2016109952A (ja) 2014-12-09 2016-06-20 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP2016218439A (ja) 2015-05-14 2016-12-22 キヤノン株式会社 アタッチメント光学系及びそれを有する撮像システム
WO2017159325A1 (ja) 2016-03-16 2017-09-21 富士フイルム株式会社 エクステンダーレンズおよび撮像装置
JP2018060093A (ja) 2016-10-06 2018-04-12 キヤノン株式会社 コンバータレンズまたはそれを有する撮像装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4829595B2 (ja) * 2005-11-15 2011-12-07 キヤノン株式会社 ズームレンズおよび撮影システム
CN103782217B (zh) 2011-08-30 2016-05-18 富士胶片株式会社 可变放大倍率光学系统和成像设备
JP6808441B2 (ja) 2016-10-24 2021-01-06 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012123032A (ja) 2010-12-06 2012-06-28 Canon Inc テレコンバータレンズおよびそれを有する撮像装置
JP2016099396A (ja) 2014-11-18 2016-05-30 キヤノン株式会社 ズームレンズ及び撮像装置
JP2016109952A (ja) 2014-12-09 2016-06-20 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP2016218439A (ja) 2015-05-14 2016-12-22 キヤノン株式会社 アタッチメント光学系及びそれを有する撮像システム
WO2017159325A1 (ja) 2016-03-16 2017-09-21 富士フイルム株式会社 エクステンダーレンズおよび撮像装置
JP2018060093A (ja) 2016-10-06 2018-04-12 キヤノン株式会社 コンバータレンズまたはそれを有する撮像装置

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Publication number Publication date
US11156810B2 (en) 2021-10-26
JP2020042062A (ja) 2020-03-19
US20200081232A1 (en) 2020-03-12

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