JPH0570805B2 - - Google Patents

Info

Publication number
JPH0570805B2
JPH0570805B2 JP60078056A JP7805685A JPH0570805B2 JP H0570805 B2 JPH0570805 B2 JP H0570805B2 JP 60078056 A JP60078056 A JP 60078056A JP 7805685 A JP7805685 A JP 7805685A JP H0570805 B2 JPH0570805 B2 JP H0570805B2
Authority
JP
Japan
Prior art keywords
group
lens group
lens
focusing
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 - Lifetime
Application number
JP60078056A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61236516A (ja
Inventor
Keiji Moryama
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.)
Nikon Corp
Original Assignee
Nippon Kogaku KK
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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Priority to JP60078056A priority Critical patent/JPS61236516A/ja
Publication of JPS61236516A publication Critical patent/JPS61236516A/ja
Publication of JPH0570805B2 publication Critical patent/JPH0570805B2/ja
Granted legal-status Critical Current

Links

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
    • G02B15/16—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 +-+
    • 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 +-++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP60078056A 1985-04-12 1985-04-12 ズ−ムレンズ系 Granted JPS61236516A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60078056A JPS61236516A (ja) 1985-04-12 1985-04-12 ズ−ムレンズ系

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60078056A JPS61236516A (ja) 1985-04-12 1985-04-12 ズ−ムレンズ系

Publications (2)

Publication Number Publication Date
JPS61236516A JPS61236516A (ja) 1986-10-21
JPH0570805B2 true JPH0570805B2 (enrdf_load_stackoverflow) 1993-10-05

Family

ID=13651193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60078056A Granted JPS61236516A (ja) 1985-04-12 1985-04-12 ズ−ムレンズ系

Country Status (1)

Country Link
JP (1) JPS61236516A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5025232B2 (ja) * 2006-11-20 2012-09-12 オリンパスイメージング株式会社 変倍光学系を用いた撮像装置
JP5206174B2 (ja) * 2008-07-08 2013-06-12 株式会社リコー ズームレンズおよびカメラおよび携帯情報端末装置
US8867143B2 (en) 2011-11-16 2014-10-21 Canon Kabushiki Kaisha Zoom lens and image pickup apparatus including the same
JP6477707B2 (ja) * 2014-07-30 2019-03-06 株式会社ニコン 変倍光学系、光学装置
JP6567136B2 (ja) * 2017-07-10 2019-08-28 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
US10663703B2 (en) 2017-07-10 2020-05-26 Canon Kabushiki Kaisha Zoom lens and image pickup apparatus
JP7149795B2 (ja) * 2018-09-28 2022-10-07 株式会社タムロン ズームレンズ及び撮像装置

Also Published As

Publication number Publication date
JPS61236516A (ja) 1986-10-21

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