JPH041328B2 - - Google Patents

Info

Publication number
JPH041328B2
JPH041328B2 JP62020204A JP2020487A JPH041328B2 JP H041328 B2 JPH041328 B2 JP H041328B2 JP 62020204 A JP62020204 A JP 62020204A JP 2020487 A JP2020487 A JP 2020487A JP H041328 B2 JPH041328 B2 JP H041328B2
Authority
JP
Japan
Prior art keywords
lens
lens group
group
refractive power
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
Application number
JP62020204A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63188110A (ja
Inventor
Koichi Maruyama
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP62020204A priority Critical patent/JPS63188110A/ja
Priority to DE3802725A priority patent/DE3802725A1/de
Priority to US07/150,950 priority patent/US4848883A/en
Publication of JPS63188110A publication Critical patent/JPS63188110A/ja
Publication of JPH041328B2 publication Critical patent/JPH041328B2/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
    • G02B15/144—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)
  • Lenses (AREA)
JP62020204A 1987-01-30 1987-01-30 望遠ズ−ムレンズ Granted JPS63188110A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62020204A JPS63188110A (ja) 1987-01-30 1987-01-30 望遠ズ−ムレンズ
DE3802725A DE3802725A1 (de) 1987-01-30 1988-01-29 Tele-zoom-linsensystem
US07/150,950 US4848883A (en) 1987-01-30 1988-02-01 Telephoto zoom lens system having four lens groups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62020204A JPS63188110A (ja) 1987-01-30 1987-01-30 望遠ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS63188110A JPS63188110A (ja) 1988-08-03
JPH041328B2 true JPH041328B2 (en, 2012) 1992-01-10

Family

ID=12020635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62020204A Granted JPS63188110A (ja) 1987-01-30 1987-01-30 望遠ズ−ムレンズ

Country Status (3)

Country Link
US (1) US4848883A (en, 2012)
JP (1) JPS63188110A (en, 2012)
DE (1) DE3802725A1 (en, 2012)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000550A (en) * 1989-01-30 1991-03-19 Canon Kabushiki Kaisha Wide-angle type zoom lens having inner-focus lens
JPH02244110A (ja) * 1989-03-17 1990-09-28 Canon Inc ズームレンズ
US5033832A (en) * 1989-04-28 1991-07-23 Asahi Kogaku Kogyo K.K. High zoom-ratio lens system for covering wide angle for compact camera
JPH02293706A (ja) * 1989-05-08 1990-12-04 Asahi Optical Co Ltd レンズの組み付け構造
JPH0331809A (ja) * 1989-06-29 1991-02-12 Olympus Optical Co Ltd ズームレンズ
US5327290A (en) * 1989-10-13 1994-07-05 Minolta Camera Kabushiki Kaisha Compact size zoom lens system
JP2808815B2 (ja) * 1990-04-19 1998-10-08 株式会社ニコン 内部合焦式望遠ズームレンズ
JPH05303035A (ja) * 1992-04-27 1993-11-16 Nikon Corp 内焦超望遠ズームレンズ
JP3266653B2 (ja) * 1992-07-13 2002-03-18 旭光学工業株式会社 望遠ズームレンズ
JP3237275B2 (ja) * 1993-02-08 2001-12-10 キヤノン株式会社 ズームレンズ
US5745300A (en) * 1993-02-17 1998-04-28 Canon Kabushiki Kaisha Zoom lens of the inner focus type
US5371626A (en) * 1993-03-09 1994-12-06 Benopcon, Inc. Wide angle binocular system with variable power capability
JPH07199066A (ja) * 1993-12-28 1995-08-04 Nikon Corp 大口径中望遠レンズ
US5633760A (en) * 1994-02-03 1997-05-27 Nikon Corporation Zoom lens
US6101045A (en) * 1994-02-14 2000-08-08 Minolta Co., Ltd. Zoom lens system
JP3376171B2 (ja) * 1995-06-22 2003-02-10 キヤノン株式会社 ズームレンズ
JP3827251B2 (ja) * 1996-07-16 2006-09-27 フジノン株式会社 ズームレンズ
US6061180A (en) * 1996-10-29 2000-05-09 Canon Kabushiki Kaisha Zoom lens
US6115188A (en) * 1997-10-16 2000-09-05 Canon Kabushiki Kaisha Optical system and optical apparatus having the same
US6493142B1 (en) * 1999-07-30 2002-12-10 Canon Kabushiki Kaisha Zoom lens and photographing apparatus having it
JP4659196B2 (ja) * 1999-10-14 2011-03-30 キヤノン株式会社 ズームレンズ及び撮影装置
JP4630423B2 (ja) * 2000-06-16 2011-02-09 キヤノン株式会社 ズームレンズ及びそれを用いた光学機器
JP4653284B2 (ja) * 2000-06-21 2011-03-16 株式会社シグマ 大口径比望遠ズームレンズ
JP2003329928A (ja) * 2002-05-09 2003-11-19 Pentax Corp ズームレンズ系
JP4857576B2 (ja) * 2005-03-23 2012-01-18 株式会社ニコン ズームレンズ
JP4869827B2 (ja) 2006-08-10 2012-02-08 富士フイルム株式会社 ズームレンズおよび撮像装置
JP2010197460A (ja) * 2009-02-23 2010-09-09 Topcon Corp 熱収差の除去された長焦点レンズ
JP5208185B2 (ja) * 2010-11-16 2013-06-12 キヤノン株式会社 ズームレンズおよび光学機器
JP5664363B2 (ja) 2011-03-10 2015-02-04 リコーイメージング株式会社 ズームレンズ系及びこれを備えた電子撮像装置
JP5693321B2 (ja) * 2011-03-28 2015-04-01 キヤノン株式会社 ズームレンズ及び撮像装置
JP5693322B2 (ja) * 2011-03-28 2015-04-01 キヤノン株式会社 ズームレンズ及び撮像装置
JP5754634B2 (ja) * 2011-07-22 2015-07-29 株式会社ニコン 光学系、及び、この光学系を有する光学機器
JP2013025159A (ja) * 2011-07-22 2013-02-04 Nikon Corp 光学系、この光学系を有する光学機器、及び、光学系の製造方法
JP5754633B2 (ja) * 2011-07-22 2015-07-29 株式会社ニコン 光学系、及び、この光学系を有する光学機器
US9739986B2 (en) 2014-06-13 2017-08-22 Canon Kabushiki Kaisha Zoom lens and image pickup apparatus including the same
JP5984877B2 (ja) * 2014-06-13 2016-09-06 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
JP6646244B2 (ja) * 2015-03-18 2020-02-14 キヤノン株式会社 ズームレンズおよび撮像装置
JP6544975B2 (ja) * 2015-04-10 2019-07-17 キヤノン株式会社 ズームレンズおよび撮像装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594688B2 (ja) * 1976-03-11 1984-01-31 キヤノン株式会社 ズ−ムレンズ
JPS5915214A (ja) * 1982-07-17 1984-01-26 Canon Inc ズ−ムレンズのフオ−カシング方法
JPH05114593A (ja) * 1991-10-23 1993-05-07 Fujitsu Ltd 半導体ウエハーの研削方法

Also Published As

Publication number Publication date
DE3802725A1 (de) 1988-08-11
DE3802725C2 (en, 2012) 1992-03-26
JPS63188110A (ja) 1988-08-03
US4848883A (en) 1989-07-18

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees