DE69109023D1 - Objektiv mit variabler Vergrösserung. - Google Patents

Objektiv mit variabler Vergrösserung.

Info

Publication number
DE69109023D1
DE69109023D1 DE69109023T DE69109023T DE69109023D1 DE 69109023 D1 DE69109023 D1 DE 69109023D1 DE 69109023 T DE69109023 T DE 69109023T DE 69109023 T DE69109023 T DE 69109023T DE 69109023 D1 DE69109023 D1 DE 69109023D1
Authority
DE
Germany
Prior art keywords
variable magnification
magnification lens
lens
variable
magnification
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
DE69109023T
Other languages
English (en)
Other versions
DE69109023T2 (de
Inventor
Makoto Sekita
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
Application granted granted Critical
Publication of DE69109023D1 publication Critical patent/DE69109023D1/de
Publication of DE69109023T2 publication Critical patent/DE69109023T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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 +-+
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
DE69109023T 1990-08-27 1991-08-26 Objektiv mit variabler Vergrösserung. Expired - Fee Related DE69109023T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2226024A JPH04106512A (ja) 1990-08-27 1990-08-27 リヤーフォーカス式の変倍レンズ

Publications (2)

Publication Number Publication Date
DE69109023D1 true DE69109023D1 (de) 1995-05-24
DE69109023T2 DE69109023T2 (de) 1995-09-14

Family

ID=16838592

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69109023T Expired - Fee Related DE69109023T2 (de) 1990-08-27 1991-08-26 Objektiv mit variabler Vergrösserung.

Country Status (4)

Country Link
US (1) US5103343A (de)
EP (1) EP0473099B1 (de)
JP (1) JPH04106512A (de)
DE (1) DE69109023T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3008580B2 (ja) * 1991-07-12 2000-02-14 キヤノン株式会社 ズームレンズ
JPH05203875A (ja) * 1992-01-29 1993-08-13 Minolta Camera Co Ltd 変倍レンズ
US6173387B1 (en) 1994-05-11 2001-01-09 Intel Corporation Interleaved exchange in a network mesh
JP3478643B2 (ja) * 1995-07-31 2003-12-15 キヤノン株式会社 撮影レンズ及びそれを用いた撮像カメラ
JP3767155B2 (ja) 1997-09-02 2006-04-19 コニカミノルタホールディングス株式会社 ズームレンズ
US6633437B1 (en) 1999-07-28 2003-10-14 Canon Kabushiki Kaisha Zoom lens and photographing apparatus having it
US6545819B1 (en) * 1999-08-31 2003-04-08 Canon Kabushiki Kaisha Zoom lens and optical apparatus having the same
US6529330B1 (en) 1999-09-01 2003-03-04 Canon Kabushiki Kaisha Observation optical system and optical device having the same
US6498687B1 (en) 1999-10-06 2002-12-24 Canon Kabushiki Kaisha Zoom lens and optical apparatus having the same
JP4687194B2 (ja) * 2005-03-30 2011-05-25 株式会社ニコン ズームレンズ
TWI317820B (en) 2006-11-15 2009-12-01 Asia Optical Co Inc Zoom lens
US8149519B2 (en) 2010-07-26 2012-04-03 Panavision International, L.P. High-speed zoom lens
US8982477B2 (en) * 2011-05-25 2015-03-17 Nikon Corporation Zoom lens, optical apparatus and method for manufacturing zoom lens
JP6099966B2 (ja) 2012-12-21 2017-03-22 キヤノン株式会社 撮影光学系及びそれを有する撮像装置
CN106133578B (zh) 2014-03-27 2019-09-10 株式会社尼康 变倍光学系统以及摄像装置
JP6354256B2 (ja) * 2014-03-27 2018-07-11 株式会社ニコン 変倍光学系及び撮像装置
CN112415730A (zh) * 2020-12-07 2021-02-26 浙江舜宇光学有限公司 变焦镜头组

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159118A (ja) * 1983-03-01 1984-09-08 Canon Inc リアフオ−カス型レンズ
JPS6187121A (ja) * 1984-06-18 1986-05-02 Nippon Kogaku Kk <Nikon> 超近接撮影可能なズ−ムレンズ
US4690513A (en) * 1984-07-31 1987-09-01 Canon Kabushiki Kaisha Wide angle high range zoom lens
US4854684A (en) * 1986-06-27 1989-08-08 Canon Kabushiki Kaisha Compact zoom lens
US4840469A (en) * 1986-11-06 1989-06-20 Nikon Corporation Telephoto zoom lens
US4984876A (en) * 1987-09-16 1991-01-15 Minolta Camera Kabushiki Kaisha Zoom lens system
JP2551026B2 (ja) * 1987-09-21 1996-11-06 ミノルタ株式会社 ズームレンズ
JPS6474520A (en) * 1987-09-16 1989-03-20 Minolta Camera Kk Zoom lens
JP2748370B2 (ja) * 1987-09-16 1998-05-06 ミノルタ株式会社 ズームレンズ
JPS6479716A (en) * 1987-09-21 1989-03-24 Minolta Camera Kk Zoom lens
JPH01193809A (ja) * 1988-01-29 1989-08-03 Canon Inc ズームレンズ
JP2558138B2 (ja) * 1988-02-08 1996-11-27 オリンパス光学工業株式会社 変倍レンズ
JP2597510B2 (ja) * 1989-03-15 1997-04-09 オリンパス光学工業株式会社 可変焦点距離レンズ
US4991942A (en) * 1989-05-02 1991-02-12 Canon Kabushiki Kaisha Zoom lens
JPH0315014A (ja) * 1989-05-19 1991-01-23 Konica Corp 可変焦点距離レンズ
JPH0483214A (ja) * 1990-07-26 1992-03-17 Minolta Camera Co Ltd 変倍レンズ
JPH03293309A (ja) * 1990-04-11 1991-12-25 Minolta Camera Co Ltd 変倍レンズ
JPH0425813A (ja) * 1990-05-21 1992-01-29 Minolta Camera Co Ltd 変倍レンズ
JPH0495911A (ja) * 1990-08-07 1992-03-27 Minolta Camera Co Ltd 広角高変倍レンズ

Also Published As

Publication number Publication date
DE69109023T2 (de) 1995-09-14
US5103343A (en) 1992-04-07
JPH04106512A (ja) 1992-04-08
EP0473099B1 (de) 1995-04-19
EP0473099A1 (de) 1992-03-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee