JPS6151293B2 - - Google Patents

Info

Publication number
JPS6151293B2
JPS6151293B2 JP56186871A JP18687181A JPS6151293B2 JP S6151293 B2 JPS6151293 B2 JP S6151293B2 JP 56186871 A JP56186871 A JP 56186871A JP 18687181 A JP18687181 A JP 18687181A JP S6151293 B2 JPS6151293 B2 JP S6151293B2
Authority
JP
Japan
Prior art keywords
group
lens
wide
meniscus lens
negative meniscus
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
JP56186871A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5888717A (ja
Inventor
Toshihiro Imai
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP56186871A priority Critical patent/JPS5888717A/ja
Priority to US06/442,414 priority patent/US4506958A/en
Publication of JPS5888717A publication Critical patent/JPS5888717A/ja
Publication of JPS6151293B2 publication Critical patent/JPS6151293B2/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)
JP56186871A 1981-11-24 1981-11-24 ズ−ムレンズ Granted JPS5888717A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56186871A JPS5888717A (ja) 1981-11-24 1981-11-24 ズ−ムレンズ
US06/442,414 US4506958A (en) 1981-11-24 1982-11-17 Compact zoom lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56186871A JPS5888717A (ja) 1981-11-24 1981-11-24 ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS5888717A JPS5888717A (ja) 1983-05-26
JPS6151293B2 true JPS6151293B2 (en, 2012) 1986-11-08

Family

ID=16196125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56186871A Granted JPS5888717A (ja) 1981-11-24 1981-11-24 ズ−ムレンズ

Country Status (2)

Country Link
US (1) US4506958A (en, 2012)
JP (1) JPS5888717A (en, 2012)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696553A (en) * 1982-03-04 1987-09-29 Canon Kabushiki Kaisha Zoom lens having a large zoom ratio
JPS5952213A (ja) * 1982-09-18 1984-03-26 Canon Inc 可動絞りを有するズ−ムレンズ
JPS59198416A (ja) * 1983-04-27 1984-11-10 Nippon Kogaku Kk <Nikon> ズ−ムレンズ
JPS6021019A (ja) * 1983-07-14 1985-02-02 Canon Inc ズ−ムレンズ
JPS60178421A (ja) * 1984-02-27 1985-09-12 Canon Inc コンパクトなズ−ムレンズ
JPS60225110A (ja) * 1984-04-23 1985-11-09 Sigma:Kk 望遠ズ−ムレンズ
JPS60263113A (ja) * 1984-06-11 1985-12-26 Canon Inc 小型のズ−ムレンズ
JPH0629905B2 (ja) * 1984-07-09 1994-04-20 キヤノン株式会社 小型のズ−ムレンズ
JPS61109012A (ja) * 1984-11-01 1986-05-27 Canon Inc 小型のズ−ムレンズ
JPS61241718A (ja) * 1985-04-19 1986-10-28 Olympus Optical Co Ltd ズ−ムレンズ
US4836662A (en) * 1985-04-19 1989-06-06 Olympus Optical Co., Ltd. Telephoto zoom lens system
JPS62910A (ja) * 1985-06-27 1987-01-06 Konishiroku Photo Ind Co Ltd 望遠ズ−ムレンズ
JP2533779B2 (ja) * 1987-06-23 1996-09-11 オリンパス光学工業株式会社 変倍レンズ
JP2816735B2 (ja) * 1990-02-15 1998-10-27 旭光学工業株式会社 ズームレンズの絞り機構
US6028717A (en) * 1997-06-13 2000-02-22 Minolta Co., Ltd. Zoom lens system
JP3473351B2 (ja) * 1997-09-30 2003-12-02 ミノルタ株式会社 ズームレンズ装置
EP1094350A3 (en) 1999-10-21 2001-08-16 Carl Zeiss Optical projection lens system
US7154676B2 (en) 2002-03-01 2006-12-26 Carl Zeiss Smt A.G. Very-high aperture projection objective
JP4687194B2 (ja) * 2005-03-30 2011-05-25 株式会社ニコン ズームレンズ
US8081380B2 (en) * 2007-10-10 2011-12-20 Mckinley Harry R Stereoscopic zoom endoscope

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908199A (en) * 1957-05-03 1959-10-13 Edward K Kaprelian Variable focal length lens system
JPS6035649B2 (ja) * 1977-05-18 1985-08-15 キヤノン株式会社 光学補正型ズ−ムレンズ
JPS5832684B2 (ja) * 1977-07-30 1983-07-14 旭光学工業株式会社 高変倍率を有する広角ズ−ムレンズ系
US4299454A (en) * 1978-09-11 1981-11-10 Vivitar Corporation Wide angle to long focus zoom lens
JPS55156912A (en) * 1979-05-16 1980-12-06 Asahi Optical Co Ltd High variable power zoom lens including wide angle
JPS5648607A (en) * 1979-09-27 1981-05-01 Canon Inc Wide-angle zoom lens

Also Published As

Publication number Publication date
JPS5888717A (ja) 1983-05-26
US4506958A (en) 1985-03-26

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