KR100485378B1 - 리어포커스식 줌렌즈 및 이것을 사용한 광학기기 - Google Patents

리어포커스식 줌렌즈 및 이것을 사용한 광학기기 Download PDF

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Publication number
KR100485378B1
KR100485378B1 KR10-2000-0042996A KR20000042996A KR100485378B1 KR 100485378 B1 KR100485378 B1 KR 100485378B1 KR 20000042996 A KR20000042996 A KR 20000042996A KR 100485378 B1 KR100485378 B1 KR 100485378B1
Authority
KR
South Korea
Prior art keywords
lens
lens group
rear focus
focus zoom
zoom lens
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
KR10-2000-0042996A
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English (en)
Korean (ko)
Other versions
KR20010021131A (ko
Inventor
호리우찌아키히사
Original Assignee
캐논 가부시끼가이샤
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Filing date
Publication date
Application filed by 캐논 가부시끼가이샤 filed Critical 캐논 가부시끼가이샤
Publication of KR20010021131A publication Critical patent/KR20010021131A/ko
Application granted granted Critical
Publication of KR100485378B1 publication Critical patent/KR100485378B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G02B15/144—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
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
KR10-2000-0042996A 1999-07-26 2000-07-26 리어포커스식 줌렌즈 및 이것을 사용한 광학기기 Expired - Fee Related KR100485378B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1999-210214 1999-07-26
JP21021499A JP4379957B2 (ja) 1999-07-26 1999-07-26 リアフォーカス式ズームレンズ及びそれを用いた光学機器

Publications (2)

Publication Number Publication Date
KR20010021131A KR20010021131A (ko) 2001-03-15
KR100485378B1 true KR100485378B1 (ko) 2005-04-27

Family

ID=16585687

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2000-0042996A Expired - Fee Related KR100485378B1 (ko) 1999-07-26 2000-07-26 리어포커스식 줌렌즈 및 이것을 사용한 광학기기

Country Status (3)

Country Link
US (1) US6392817B1 (enExample)
JP (1) JP4379957B2 (enExample)
KR (1) KR100485378B1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3826061B2 (ja) * 2002-03-29 2006-09-27 キヤノン株式会社 ズームレンズ及びそれを有する光学機器
JP4612795B2 (ja) * 2004-01-30 2011-01-12 キヤノン株式会社 ズームレンズ及びそれを用いた撮像装置
KR100702960B1 (ko) * 2005-09-02 2007-04-03 삼성테크윈 주식회사 줌렌즈 광학계
JP6257165B2 (ja) * 2013-03-29 2018-01-10 キヤノン株式会社 レンズ装置及びそれを有する撮像装置
US20180129026A1 (en) * 2014-12-26 2018-05-10 Nikon Corporation Variable power optical system, optical apparatus, and variable power optical system manufacturing method
WO2016104786A1 (ja) * 2014-12-26 2016-06-30 株式会社ニコン 変倍光学系、光学装置、変倍光学系の製造方法

Family Cites Families (50)

* Cited by examiner, † Cited by third party
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US4299454A (en) 1978-09-11 1981-11-10 Vivitar Corporation Wide angle to long focus zoom lens
US5011272A (en) 1984-12-21 1991-04-30 Canon Kabushiki Kaisha Compact zoom lens
US4907866A (en) 1985-04-05 1990-03-13 Canon Kabushiki Kaisha Objective of variable focal length
JPH0668573B2 (ja) 1985-06-10 1994-08-31 キヤノン株式会社 可変焦点距離レンズ
JPH071333B2 (ja) 1985-06-26 1995-01-11 キヤノン株式会社 可変焦点距離レンズ
JPS6224213A (ja) 1985-07-25 1987-02-02 Canon Inc ズ−ムレンズ
JPS6250808A (ja) 1985-08-30 1987-03-05 Canon Inc 屈折率分布型レンズ系
JPH0660971B2 (ja) 1986-02-03 1994-08-10 オリンパス光学工業株式会社 ズ−ムレンズ
JP2740890B2 (ja) 1986-03-06 1998-04-15 キヤノン株式会社 リヤーフオーカス式ズームレンズ
JP2561637B2 (ja) 1986-04-21 1996-12-11 キヤノン株式会社 ２つの合焦用レンズ群を有したズ−ムレンズ
US4854684A (en) 1986-06-27 1989-08-08 Canon Kabushiki Kaisha Compact zoom lens
JPH07107577B2 (ja) 1986-07-24 1995-11-15 オリンパス光学工業株式会社 ズ−ムレンズ
US4802747A (en) 1986-09-25 1989-02-07 Canon Kabushiki Kaisha Compact zoom lens
JP2526923B2 (ja) 1987-09-09 1996-08-21 株式会社ニコン ズ―ムレンズ
JPH01193809A (ja) 1988-01-29 1989-08-03 Canon Inc ズームレンズ
JP2512992B2 (ja) 1988-05-31 1996-07-03 キヤノン株式会社 ズ―ムレンズ
JPH0253017A (ja) 1988-08-18 1990-02-22 Matsushita Electric Ind Co Ltd 非球面ズームレンズ
JPH02100011A (ja) 1988-10-07 1990-04-12 Canon Inc ズームレンズ
US5050972A (en) 1989-02-08 1991-09-24 Canon Kabushiki Kaisha Zoom lens
JPH0356916A (ja) 1989-07-26 1991-03-12 Canon Inc ズームレンズ
JPH03145615A (ja) 1989-10-31 1991-06-20 Canon Inc ズームレンズ
JPH03181909A (ja) 1989-12-11 1991-08-07 Canon Inc ズームレンズ
US5321552A (en) 1990-02-08 1994-06-14 Canon Kabushiki Kaisha Rear-focus-type zoom lens equipped with index-distribution-type lens
US5189558A (en) 1990-06-11 1993-02-23 Olympus Optical Co., Ltd. Vari-focal system having short total length
JP3147167B2 (ja) 1990-06-11 2001-03-19 オリンパス光学工業株式会社 ズームレンズ
US5138492A (en) 1990-07-20 1992-08-11 Canon Kabushiki Kaisha Rear-focus type zoom lens suppressing fluctuation of aberration
JP2744336B2 (ja) 1990-07-20 1998-04-28 キヤノン株式会社 リヤーフォーカス式のズームレンズ
US5353157A (en) 1990-08-21 1994-10-04 Canon Kabushiki Kaisha Rear focusing zoom lens
JP3029150B2 (ja) 1991-09-03 2000-04-04 キヤノン株式会社 広角高変倍ズームレンズ
DE69219248T2 (de) 1991-08-30 1997-10-16 Canon Kk Zoomobjektiv
JP3033274B2 (ja) 1991-09-12 2000-04-17 松下電器産業株式会社 非球面ズームレンズとそれを用いたビデオカメラ
US5739961A (en) 1992-04-30 1998-04-14 Canon Kabushiki Kaisha Zoom lens
JP3085823B2 (ja) 1993-06-07 2000-09-11 松下電器産業株式会社 非球面ズームレンズとそれを用いたビデオカメラ
JP3078165B2 (ja) 1993-12-29 2000-08-21 松下電器産業株式会社 非球面ズームレンズ及びビデオカメラ
DE69409159T2 (de) 1993-06-07 1998-10-22 Matsushita Electric Ind Co Ltd Asphärisches Zoomobjektiv
JPH07113955A (ja) 1993-10-18 1995-05-02 Minolta Co Ltd ズームレンズ
JPH07261081A (ja) 1994-03-24 1995-10-13 Canon Inc リアフォーカス式のズームレンズ
US5612825A (en) 1994-03-14 1997-03-18 Canon Kabushiki Kaisha Zoom lens
JP3458198B2 (ja) 1994-06-17 2003-10-20 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
JPH085917A (ja) 1994-06-21 1996-01-12 Matsushita Electric Ind Co Ltd 広角非球面ズームレンズ及びこれを使用したビデオカメラ
JP3582872B2 (ja) 1994-12-20 2004-10-27 松下電器産業株式会社 ズームレンズ及びそれを用いたビデオカメラ
JP3428800B2 (ja) 1995-02-20 2003-07-22 松下電器産業株式会社 ズームレンズ及びそれを用いたビデオカメラ
DE69628960T2 (de) 1995-02-20 2004-05-06 Matsushita Electric Industrial Co., Ltd., Kadoma Zoomobjektiv und Videokamera mit einem derartigen Objektiv
JP3519817B2 (ja) * 1995-04-05 2004-04-19 富士写真フイルム株式会社 ズームレンズ
JPH09211324A (ja) 1996-02-01 1997-08-15 Matsushita Electric Ind Co Ltd 非球面ズームレンズ装置
US6226130B1 (en) * 1996-04-09 2001-05-01 Canon Kabushiki Kaisha Zoom lens
US6084722A (en) 1997-07-02 2000-07-04 Canon Kabushiki Kaisha Zoom lens of rear focus type and image pickup apparatus
US6081389A (en) 1997-07-31 2000-06-27 Canon Kabushiki Kaisha Zoom lens of retrofocus type
US6166864A (en) * 1998-03-10 2000-12-26 Canon Kabushiki Kaisha Zoom lens and optical apparatus using the same
JPH1184238A (ja) 1998-03-19 1999-03-26 Olympus Optical Co Ltd ズームレンズ

Also Published As

Publication number Publication date
US6392817B1 (en) 2002-05-21
JP2001033698A (ja) 2001-02-09
JP4379957B2 (ja) 2009-12-09
KR20010021131A (ko) 2001-03-15

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