JPS6161655B2 - - Google Patents

Info

Publication number
JPS6161655B2
JPS6161655B2 JP57014540A JP1454082A JPS6161655B2 JP S6161655 B2 JPS6161655 B2 JP S6161655B2 JP 57014540 A JP57014540 A JP 57014540A JP 1454082 A JP1454082 A JP 1454082A JP S6161655 B2 JPS6161655 B2 JP S6161655B2
Authority
JP
Japan
Prior art keywords
lens
lens group
wide
refractive power
zoom
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
JP57014540A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58132209A (ja
Inventor
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 JP57014540A priority Critical patent/JPS58132209A/ja
Priority to US06/459,701 priority patent/US4571031A/en
Publication of JPS58132209A publication Critical patent/JPS58132209A/ja
Publication of JPS6161655B2 publication Critical patent/JPS6161655B2/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
    • G02B15/143—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
    • G02B15/1435—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 negative
    • G02B15/143503—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 negative arranged -+-

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP57014540A 1982-02-01 1982-02-01 広角ズ−ムレンズ Granted JPS58132209A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57014540A JPS58132209A (ja) 1982-02-01 1982-02-01 広角ズ−ムレンズ
US06/459,701 US4571031A (en) 1982-02-01 1983-01-20 Wide angle zoom objective

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57014540A JPS58132209A (ja) 1982-02-01 1982-02-01 広角ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS58132209A JPS58132209A (ja) 1983-08-06
JPS6161655B2 true JPS6161655B2 (US08063081-20111122-C00044.png) 1986-12-26

Family

ID=11863980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57014540A Granted JPS58132209A (ja) 1982-02-01 1982-02-01 広角ズ−ムレンズ

Country Status (2)

Country Link
US (1) US4571031A (US08063081-20111122-C00044.png)
JP (1) JPS58132209A (US08063081-20111122-C00044.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387662U (US08063081-20111122-C00044.png) * 1986-11-28 1988-06-08
JPH0240614Y2 (US08063081-20111122-C00044.png) * 1985-12-24 1990-10-30
JPH0413784Y2 (US08063081-20111122-C00044.png) * 1986-05-28 1992-03-30
JPH0450602Y2 (US08063081-20111122-C00044.png) * 1986-07-31 1992-11-30

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810072A (en) * 1984-12-22 1989-03-07 Canon Kabushiki Kaisha Zoom lens
US5270866A (en) * 1986-07-18 1993-12-14 Canon Kabushiki Kaisha Compact zoom lens
JPH0814654B2 (ja) * 1987-04-28 1996-02-14 キヤノン株式会社 小型のズ−ムレンズ
JPS6332512A (ja) * 1986-07-25 1988-02-12 Canon Inc ズ−ムレンズ
US4801969A (en) * 1987-10-15 1989-01-31 Eastman Kodak Company Self-coiling exposure shade
JP2621387B2 (ja) * 1988-07-26 1997-06-18 キヤノン株式会社 防振機能を有した変倍光学系
JPH02245715A (ja) * 1989-03-17 1990-10-01 Hoya Corp 低分散ガラスモールド非球面単レンズ
US5268792A (en) * 1991-05-20 1993-12-07 Eastman Kodak Company Zoom lens
JP3081698B2 (ja) * 1991-12-24 2000-08-28 オリンパス光学工業株式会社 ３群ズームレンズ
US5461512A (en) * 1993-11-30 1995-10-24 Eastman Kodak Company Zoom camera lens having three moving groups
JP3805390B2 (ja) * 1994-09-05 2006-08-02 オリンパス株式会社 実像式変倍ファインダー光学系
JPH09211327A (ja) * 1996-01-31 1997-08-15 Nikon Corp ズームレンズ
JP2004144947A (ja) * 2002-10-23 2004-05-20 Ricoh Co Ltd ズームレンズ、カメラ、及び携帯情報端末装置
US8830592B2 (en) 2010-06-23 2014-09-09 Nikon Corporation Zoom lens, imaging apparatus, and method for manufacturing zoom lens

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144653A (en) * 1975-06-06 1976-12-11 Canon Inc Zoom lens system
JPS5459157A (en) * 1977-10-19 1979-05-12 Asahi Optical Co Ltd Zoom lens having small distortion aberration
JPS5478148A (en) * 1977-12-02 1979-06-22 Asahi Optical Co Ltd Zoom lens of small distortion aberration
JPS559550A (en) * 1978-07-06 1980-01-23 Canon Inc Zoom lens system
JPS5532037A (en) * 1978-08-29 1980-03-06 Nippon Kogaku Kk <Nikon> Zoom lens system for near distance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704487A (en) * 1952-07-22 1955-03-22 Optical system of variable focal length
US2906171A (en) * 1955-12-20 1959-09-29 Bergstein Leonard Varifocal lens system
JPS5226221A (en) * 1975-08-22 1977-02-26 Canon Inc Retrofocus type wide angle lens
US4159865A (en) * 1975-08-22 1979-07-03 Canon Kabushiki Kaisha Zoom lens system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144653A (en) * 1975-06-06 1976-12-11 Canon Inc Zoom lens system
JPS5459157A (en) * 1977-10-19 1979-05-12 Asahi Optical Co Ltd Zoom lens having small distortion aberration
JPS5478148A (en) * 1977-12-02 1979-06-22 Asahi Optical Co Ltd Zoom lens of small distortion aberration
JPS559550A (en) * 1978-07-06 1980-01-23 Canon Inc Zoom lens system
JPS5532037A (en) * 1978-08-29 1980-03-06 Nippon Kogaku Kk <Nikon> Zoom lens system for near distance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0240614Y2 (US08063081-20111122-C00044.png) * 1985-12-24 1990-10-30
JPH0413784Y2 (US08063081-20111122-C00044.png) * 1986-05-28 1992-03-30
JPH0450602Y2 (US08063081-20111122-C00044.png) * 1986-07-31 1992-11-30
JPS6387662U (US08063081-20111122-C00044.png) * 1986-11-28 1988-06-08

Also Published As

Publication number Publication date
JPS58132209A (ja) 1983-08-06
US4571031A (en) 1986-02-18

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