JPH0414764B2 - - Google Patents

Info

Publication number
JPH0414764B2
JPH0414764B2 JP58140002A JP14000283A JPH0414764B2 JP H0414764 B2 JPH0414764 B2 JP H0414764B2 JP 58140002 A JP58140002 A JP 58140002A JP 14000283 A JP14000283 A JP 14000283A JP H0414764 B2 JPH0414764 B2 JP H0414764B2
Authority
JP
Japan
Prior art keywords
lens group
lens
refractive power
zoom
wide
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
Application number
JP58140002A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6031110A (ja
Inventor
Keiji Ikemori
Tsunefumi Tanaka
Masatake Kato
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 JP58140002A priority Critical patent/JPS6031110A/ja
Publication of JPS6031110A publication Critical patent/JPS6031110A/ja
Priority to US06/903,901 priority patent/US4687302A/en
Publication of JPH0414764B2 publication Critical patent/JPH0414764B2/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
    • G02B15/177—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 negative front lens or group of lenses
    • 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
    • G02B15/1445—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 negative
    • G02B15/144515—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 negative arranged -+++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP58140002A 1983-06-01 1983-07-29 ズ−ムレンズ Granted JPS6031110A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58140002A JPS6031110A (ja) 1983-07-29 1983-07-29 ズ−ムレンズ
US06/903,901 US4687302A (en) 1983-06-01 1986-09-04 Zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58140002A JPS6031110A (ja) 1983-07-29 1983-07-29 ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS6031110A JPS6031110A (ja) 1985-02-16
JPH0414764B2 true JPH0414764B2 (US07534539-20090519-C00280.png) 1992-03-13

Family

ID=15258644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58140002A Granted JPS6031110A (ja) 1983-06-01 1983-07-29 ズ−ムレンズ

Country Status (1)

Country Link
JP (1) JPS6031110A (US07534539-20090519-C00280.png)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3590807B2 (ja) * 1995-03-08 2004-11-17 株式会社ニコン ズームレンズ
US6191896B1 (en) 1997-09-04 2001-02-20 Canon Kabushiki Kaisha Zoom lens and optical apparatus having the same
DE60123204T2 (de) * 2000-12-27 2007-01-25 Canon K.K. Zoom-Objektiv
US6888683B2 (en) 2001-05-17 2005-05-03 Canon Kabushiki Kaisha Zoom lens and camera
JP2004077803A (ja) 2002-08-19 2004-03-11 Canon Inc ズームレンズ及びそれを用いた光学機器
JP2005062227A (ja) 2003-08-11 2005-03-10 Canon Inc ズームレンズ及びそれを有する撮像装置
JP4537114B2 (ja) 2004-05-07 2010-09-01 キヤノン株式会社 ズームレンズ
JP4708734B2 (ja) 2004-05-28 2011-06-22 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
JP4585794B2 (ja) 2004-05-31 2010-11-24 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
JP6946774B2 (ja) * 2017-06-21 2021-10-06 株式会社ニコン 変倍光学系および光学装置

Also Published As

Publication number Publication date
JPS6031110A (ja) 1985-02-16

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