JPH0567930B2 - - Google Patents

Info

Publication number
JPH0567930B2
JPH0567930B2 JP58021930A JP2193083A JPH0567930B2 JP H0567930 B2 JPH0567930 B2 JP H0567930B2 JP 58021930 A JP58021930 A JP 58021930A JP 2193083 A JP2193083 A JP 2193083A JP H0567930 B2 JPH0567930 B2 JP H0567930B2
Authority
JP
Japan
Prior art keywords
lens group
focusing
focal length
focusing lens
change
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
JP58021930A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59147314A (ja
Inventor
Sho Tokumaru
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.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP58021930A priority Critical patent/JPS59147314A/ja
Publication of JPS59147314A publication Critical patent/JPS59147314A/ja
Publication of JPH0567930B2 publication Critical patent/JPH0567930B2/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
    • G02B15/143—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 three groups only
    • G02B15/1431—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 three groups only the first group being positive
    • G02B15/143105—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 three groups only the first group being positive arranged +-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP58021930A 1983-02-12 1983-02-12 ズ−ムレンズ系 Granted JPS59147314A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58021930A JPS59147314A (ja) 1983-02-12 1983-02-12 ズ−ムレンズ系

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58021930A JPS59147314A (ja) 1983-02-12 1983-02-12 ズ−ムレンズ系

Publications (2)

Publication Number Publication Date
JPS59147314A JPS59147314A (ja) 1984-08-23
JPH0567930B2 true JPH0567930B2 (enExample) 1993-09-27

Family

ID=12068770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58021930A Granted JPS59147314A (ja) 1983-02-12 1983-02-12 ズ−ムレンズ系

Country Status (1)

Country Link
JP (1) JPS59147314A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4525039B2 (ja) * 2003-09-30 2010-08-18 株式会社ニコン ズームレンズ
JP6146021B2 (ja) * 2013-01-28 2017-06-14 株式会社ニコン 変倍光学系、光学装置、及び、変倍光学系の製造方法
JP6108075B2 (ja) * 2013-01-28 2017-04-05 株式会社ニコン 変倍光学系、光学装置、及び、変倍光学系の製造方法
JP6146020B2 (ja) * 2013-01-28 2017-06-14 株式会社ニコン 変倍光学系、光学装置、及び、変倍光学系の製造方法
WO2014115565A1 (ja) 2013-01-28 2014-07-31 株式会社ニコン 変倍光学系、光学装置、及び、変倍光学系の製造方法
JP6609412B2 (ja) * 2015-02-17 2019-11-20 株式会社タムロン 光学系及び撮像装置
EP3543759A4 (en) * 2016-11-21 2020-11-04 Nikon Corporation VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL DEVICE, IMAGING DEVICE, AND PROCESS FOR THE PRODUCTION OF THE VARIABLE MAGNIFICATION OPTICAL SYSTEM

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178326A (en) * 1974-12-28 1976-07-07 Nippon Kogaku Kk Boenrenzu

Also Published As

Publication number Publication date
JPS59147314A (ja) 1984-08-23

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