JP6004828B2 - ズームレンズ及びそれを有する撮像装置 - Google Patents

ズームレンズ及びそれを有する撮像装置 Download PDF

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Publication number
JP6004828B2
JP6004828B2 JP2012180896A JP2012180896A JP6004828B2 JP 6004828 B2 JP6004828 B2 JP 6004828B2 JP 2012180896 A JP2012180896 A JP 2012180896A JP 2012180896 A JP2012180896 A JP 2012180896A JP 6004828 B2 JP6004828 B2 JP 6004828B2
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JP
Japan
Prior art keywords
lens
lens group
zoom
zooming
focal length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2012180896A
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English (en)
Japanese (ja)
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JP2014038236A (ja
JP2014038236A5 (cg-RX-API-DMAC7.html
Inventor
陽介 江口
陽介 江口
雅雄 堀
雅雄 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2012180896A priority Critical patent/JP6004828B2/ja
Priority to US13/958,664 priority patent/US8928798B2/en
Publication of JP2014038236A publication Critical patent/JP2014038236A/ja
Publication of JP2014038236A5 publication Critical patent/JP2014038236A5/ja
Application granted granted Critical
Publication of JP6004828B2 publication Critical patent/JP6004828B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145121—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 five 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
    • 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
    • G02B15/163—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 having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
    • G02B15/167—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 having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
    • G02B15/173—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 having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP2012180896A 2012-08-17 2012-08-17 ズームレンズ及びそれを有する撮像装置 Expired - Fee Related JP6004828B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012180896A JP6004828B2 (ja) 2012-08-17 2012-08-17 ズームレンズ及びそれを有する撮像装置
US13/958,664 US8928798B2 (en) 2012-08-17 2013-08-05 Zoom lens and image pickup apparatus including the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012180896A JP6004828B2 (ja) 2012-08-17 2012-08-17 ズームレンズ及びそれを有する撮像装置

Publications (3)

Publication Number Publication Date
JP2014038236A JP2014038236A (ja) 2014-02-27
JP2014038236A5 JP2014038236A5 (cg-RX-API-DMAC7.html) 2015-09-17
JP6004828B2 true JP6004828B2 (ja) 2016-10-12

Family

ID=50099804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012180896A Expired - Fee Related JP6004828B2 (ja) 2012-08-17 2012-08-17 ズームレンズ及びそれを有する撮像装置

Country Status (2)

Country Link
US (1) US8928798B2 (cg-RX-API-DMAC7.html)
JP (1) JP6004828B2 (cg-RX-API-DMAC7.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6344964B2 (ja) * 2014-05-01 2018-06-20 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
JP2017187629A (ja) * 2016-04-06 2017-10-12 オリンパス株式会社 変倍光学系及びそれを備えた撮像装置
JP7207854B2 (ja) 2018-02-28 2023-01-18 キヤノン株式会社 ズームレンズ及び撮像装置
JP2020085934A (ja) * 2018-11-15 2020-06-04 キヤノン株式会社 ズームレンズ及び撮像装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2988164B2 (ja) * 1992-11-06 1999-12-06 キヤノン株式会社 リヤーフォーカス式のズームレンズ
JP3827251B2 (ja) 1996-07-16 2006-09-27 フジノン株式会社 ズームレンズ
JPH1039216A (ja) 1996-07-24 1998-02-13 Nikon Corp ズームレンズ
JP5633111B2 (ja) 2009-02-20 2014-12-03 株式会社ニコン 変倍光学系、及び、この変倍光学系を備えた光学機器

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Publication number Publication date
JP2014038236A (ja) 2014-02-27
US8928798B2 (en) 2015-01-06
US20140049680A1 (en) 2014-02-20

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