JPS5562419A - Zoom lens - Google Patents

Zoom lens

Info

Publication number
JPS5562419A
JPS5562419A JP11662179A JP11662179A JPS5562419A JP S5562419 A JPS5562419 A JP S5562419A JP 11662179 A JP11662179 A JP 11662179A JP 11662179 A JP11662179 A JP 11662179A JP S5562419 A JPS5562419 A JP S5562419A
Authority
JP
Japan
Prior art keywords
zoom lens
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.)
Pending
Application number
JP11662179A
Other languages
Japanese (ja)
Inventor
Ai Betensukii Erisu
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.)
Optigon Research and Development Corp
Original Assignee
Optigon Research and Development Corp
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 Optigon Research and Development Corp filed Critical Optigon Research and Development Corp
Publication of JPS5562419A publication Critical patent/JPS5562419A/en
Pending 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)
JP11662179A 1978-09-11 1979-09-11 Zoom lens Pending JPS5562419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US94143078A 1978-09-11 1978-09-11

Publications (1)

Publication Number Publication Date
JPS5562419A true JPS5562419A (en) 1980-05-10

Family

ID=25476446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11662179A Pending JPS5562419A (en) 1978-09-11 1979-09-11 Zoom lens

Country Status (2)

Country Link
JP (1) JPS5562419A (en)
DE (1) DE2936677C2 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127908A (en) * 1982-01-26 1983-07-30 Minolta Camera Co Ltd High variable power zoom lens system including wide angle region
JPS58137815A (en) * 1982-02-10 1983-08-16 Olympus Optical Co Ltd Zoom lens
JPS58160913A (en) * 1982-03-19 1983-09-24 Canon Inc Zoom lens having high variable power
JPS58162923A (en) * 1982-03-23 1983-09-27 Canon Inc Zoom lens
JPS61275712A (en) * 1985-05-31 1986-12-05 Olympus Optical Co Ltd Telephoto zoom lens
US4634236A (en) * 1980-06-12 1987-01-06 Minolta Camera Kabushiki Kaisha Compact zoom lens system of a relatively high zoom ratio capable of providing a wide field angle
DE3844239A1 (en) * 1987-12-29 1989-07-27 Asahi Optical Co Ltd COMPACT ZOOM LENS SYSTEM WITH HIGH ZOOM RATIO AND WIDE FIELD OF VIEW
US5191476A (en) * 1990-12-03 1993-03-02 Nikon Corporation Great relative aperture zoom lens
US5442485A (en) * 1992-10-15 1995-08-15 Olympus Optical Co., Ltd. Zoom lens system
US5712733A (en) * 1995-01-31 1998-01-27 Canon Kabushiki Kaisha Zoom lens of rear focus type
US6084722A (en) * 1997-07-02 2000-07-04 Canon Kabushiki Kaisha Zoom lens of rear focus type and image pickup apparatus
US6118593A (en) * 1998-09-09 2000-09-12 Canon Kabushiki Kaisha Zoom lens and optical apparatus having the same
US6178049B1 (en) 1996-04-09 2001-01-23 Canon Kabushiki Kaisha Zoom lens
JP2001188169A (en) * 1999-12-27 2001-07-10 Asahi Optical Co Ltd Zoom lens system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256381A (en) * 1980-01-31 1981-03-17 Vivitar Corporation Zoom lens

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044356A (en) * 1961-05-26 1962-07-17 Bell & Howell Co Zoom lens
US3059536A (en) * 1961-05-26 1962-10-23 Bell & Howell Co Zoom lens system
JPS5256946A (en) * 1975-11-05 1977-05-10 Canon Inc Compact zoom lens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1952566A1 (en) * 1969-03-11 1970-10-01 Kreidler Werke Gmbh Front fork for two-wheelers, especially for motorcycles
JPS588482B2 (en) * 1975-02-26 1983-02-16 キヤノン株式会社 compact nazum lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044356A (en) * 1961-05-26 1962-07-17 Bell & Howell Co Zoom lens
US3059536A (en) * 1961-05-26 1962-10-23 Bell & Howell Co Zoom lens system
JPS5256946A (en) * 1975-11-05 1977-05-10 Canon Inc Compact zoom lens

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634236A (en) * 1980-06-12 1987-01-06 Minolta Camera Kabushiki Kaisha Compact zoom lens system of a relatively high zoom ratio capable of providing a wide field angle
JPH0514247B2 (en) * 1982-01-26 1993-02-24 Minolta Camera Kk
JPS58127908A (en) * 1982-01-26 1983-07-30 Minolta Camera Co Ltd High variable power zoom lens system including wide angle region
JPS58137815A (en) * 1982-02-10 1983-08-16 Olympus Optical Co Ltd Zoom lens
JPS6235652B2 (en) * 1982-02-10 1987-08-03 Olympus Optical Co
JPS58160913A (en) * 1982-03-19 1983-09-24 Canon Inc Zoom lens having high variable power
JPS58162923A (en) * 1982-03-23 1983-09-27 Canon Inc Zoom lens
JPS6155654B2 (en) * 1982-03-23 1986-11-28 Canon Kk
JPS61275712A (en) * 1985-05-31 1986-12-05 Olympus Optical Co Ltd Telephoto zoom lens
US4917482A (en) * 1987-12-29 1990-04-17 Asahi Kogaku Kogyo Kabushiki Kaisha Compact zoom lens system capable of high zoom ratio and having coverage of a wide visual field
DE3844239A1 (en) * 1987-12-29 1989-07-27 Asahi Optical Co Ltd COMPACT ZOOM LENS SYSTEM WITH HIGH ZOOM RATIO AND WIDE FIELD OF VIEW
DE3844239C2 (en) * 1987-12-29 1996-10-17 Asahi Optical Co Ltd Zoom lens
US5191476A (en) * 1990-12-03 1993-03-02 Nikon Corporation Great relative aperture zoom lens
US5442485A (en) * 1992-10-15 1995-08-15 Olympus Optical Co., Ltd. Zoom lens system
US5712733A (en) * 1995-01-31 1998-01-27 Canon Kabushiki Kaisha Zoom lens of rear focus type
US6178049B1 (en) 1996-04-09 2001-01-23 Canon Kabushiki Kaisha Zoom lens
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
US6118593A (en) * 1998-09-09 2000-09-12 Canon Kabushiki Kaisha Zoom lens and optical apparatus having the same
US6388818B1 (en) 1998-09-09 2002-05-14 Canon Kabushiki Kaisha Zoom lens and optical apparatus having the same
JP2001188169A (en) * 1999-12-27 2001-07-10 Asahi Optical Co Ltd Zoom lens system

Also Published As

Publication number Publication date
DE2936677C2 (en) 1986-10-02
DE2936677A1 (en) 1980-07-31

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