JPS57195213A - Compact zoom lens - Google Patents

Compact zoom lens

Info

Publication number
JPS57195213A
JPS57195213A JP56078658A JP7865881A JPS57195213A JP S57195213 A JPS57195213 A JP S57195213A JP 56078658 A JP56078658 A JP 56078658A JP 7865881 A JP7865881 A JP 7865881A JP S57195213 A JPS57195213 A JP S57195213A
Authority
JP
Japan
Prior art keywords
positive
lens component
lens
moved
negative
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.)
Granted
Application number
JP56078658A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6151297B2 (enrdf_load_stackoverflow
Inventor
Hisao Fujita
Shozo Ishiyama
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP56078658A priority Critical patent/JPS57195213A/ja
Priority to US06/381,311 priority patent/US4501475A/en
Publication of JPS57195213A publication Critical patent/JPS57195213A/ja
Publication of JPS6151297B2 publication Critical patent/JPS6151297B2/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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145129—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 five groups only the first group being positive arranged +-+++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP56078658A 1981-05-25 1981-05-26 Compact zoom lens Granted JPS57195213A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56078658A JPS57195213A (en) 1981-05-26 1981-05-26 Compact zoom lens
US06/381,311 US4501475A (en) 1981-05-25 1982-05-24 Zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56078658A JPS57195213A (en) 1981-05-26 1981-05-26 Compact zoom lens

Publications (2)

Publication Number Publication Date
JPS57195213A true JPS57195213A (en) 1982-11-30
JPS6151297B2 JPS6151297B2 (enrdf_load_stackoverflow) 1986-11-08

Family

ID=13667954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56078658A Granted JPS57195213A (en) 1981-05-25 1981-05-26 Compact zoom lens

Country Status (1)

Country Link
JP (1) JPS57195213A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150926A (ja) * 1982-03-04 1983-09-07 Canon Inc ズ−ムレンズ
JPS58179809A (ja) * 1982-04-15 1983-10-21 Canon Inc ズ−ムレンズ
JPS5993411A (ja) * 1982-11-19 1984-05-29 Canon Inc ズ−ムレンズ
JPS62186216A (ja) * 1986-02-12 1987-08-14 Sigma:Kk コンパクトな高倍率ズ−ムレンズ
US5583701A (en) * 1993-03-26 1996-12-10 Olympus Optical Co., Ltd. Zoom lens system
JP2002098893A (ja) * 2000-09-26 2002-04-05 Minolta Co Ltd 撮像レンズ装置
CN100338495C (zh) * 2001-12-12 2007-09-19 株式会社尼康 变焦透镜系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430855A (en) * 1977-07-30 1979-03-07 Asahi Optical Co Ltd Wide angle zoom lens system having high variable magnification
JPS5515102A (en) * 1978-07-17 1980-02-02 Sigma:Kk High power telescopic zoom lens
JPS57192918A (en) * 1981-05-25 1982-11-27 Konishiroku Photo Ind Co Ltd Compact zoom lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430855A (en) * 1977-07-30 1979-03-07 Asahi Optical Co Ltd Wide angle zoom lens system having high variable magnification
JPS5515102A (en) * 1978-07-17 1980-02-02 Sigma:Kk High power telescopic zoom lens
JPS57192918A (en) * 1981-05-25 1982-11-27 Konishiroku Photo Ind Co Ltd Compact zoom lens

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150926A (ja) * 1982-03-04 1983-09-07 Canon Inc ズ−ムレンズ
JPS58179809A (ja) * 1982-04-15 1983-10-21 Canon Inc ズ−ムレンズ
JPS5993411A (ja) * 1982-11-19 1984-05-29 Canon Inc ズ−ムレンズ
JPS62186216A (ja) * 1986-02-12 1987-08-14 Sigma:Kk コンパクトな高倍率ズ−ムレンズ
US5583701A (en) * 1993-03-26 1996-12-10 Olympus Optical Co., Ltd. Zoom lens system
JP2002098893A (ja) * 2000-09-26 2002-04-05 Minolta Co Ltd 撮像レンズ装置
CN100338495C (zh) * 2001-12-12 2007-09-19 株式会社尼康 变焦透镜系统

Also Published As

Publication number Publication date
JPS6151297B2 (enrdf_load_stackoverflow) 1986-11-08

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