JPS57161804A - Zoom lens system - Google Patents

Zoom lens system

Info

Publication number
JPS57161804A
JPS57161804A JP56046213A JP4621381A JPS57161804A JP S57161804 A JPS57161804 A JP S57161804A JP 56046213 A JP56046213 A JP 56046213A JP 4621381 A JP4621381 A JP 4621381A JP S57161804 A JPS57161804 A JP S57161804A
Authority
JP
Japan
Prior art keywords
telephoto
wide
terminal
lens system
focal lengths
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
JP56046213A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6155093B2 (enrdf_load_stackoverflow
Inventor
Kinji Takabayashi
Masakuni Tai
Tomonori Abe
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.)
Tokina Optical Co Ltd
Original Assignee
Tokina 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 Tokina Optical Co Ltd filed Critical Tokina Optical Co Ltd
Priority to JP56046213A priority Critical patent/JPS57161804A/ja
Publication of JPS57161804A publication Critical patent/JPS57161804A/ja
Publication of JPS6155093B2 publication Critical patent/JPS6155093B2/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)
JP56046213A 1981-03-31 1981-03-31 Zoom lens system Granted JPS57161804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046213A JPS57161804A (en) 1981-03-31 1981-03-31 Zoom lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046213A JPS57161804A (en) 1981-03-31 1981-03-31 Zoom lens system

Publications (2)

Publication Number Publication Date
JPS57161804A true JPS57161804A (en) 1982-10-05
JPS6155093B2 JPS6155093B2 (enrdf_load_stackoverflow) 1986-11-26

Family

ID=12740813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046213A Granted JPS57161804A (en) 1981-03-31 1981-03-31 Zoom lens system

Country Status (1)

Country Link
JP (1) JPS57161804A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127908A (ja) * 1982-01-26 1983-07-30 Minolta Camera Co Ltd 広角域を含む高変倍率ズ−ムレンズ系
JPS58224323A (ja) * 1982-06-23 1983-12-26 Asahi Optical Co Ltd ズ−ムレンズ
JPS59201014A (ja) * 1983-04-28 1984-11-14 Nitto Kogaku Kk ズ−ムレンズ
JPS6014213A (ja) * 1983-07-06 1985-01-24 Nippon Kogaku Kk <Nikon> 広画角を含む高変倍率ズ−ムレンズ
US4789226A (en) * 1983-07-22 1988-12-06 Olympus Optical Co., Ltd. Zoom lens system
EP0405532A3 (en) * 1989-06-27 1991-03-06 Nikon Corporation Zoom lens
JPH08248319A (ja) * 1995-03-13 1996-09-27 Canon Inc ズームレンズ
US5568321A (en) * 1990-11-16 1996-10-22 Canon Kabushiki Kaisha Zoom lens
US5748367A (en) * 1994-10-13 1998-05-05 Carl-Zeiss-Stiftung Illuminating device for a stereo microscope

Citations (1)

* 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

Patent Citations (1)

* 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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127908A (ja) * 1982-01-26 1983-07-30 Minolta Camera Co Ltd 広角域を含む高変倍率ズ−ムレンズ系
JPS58224323A (ja) * 1982-06-23 1983-12-26 Asahi Optical Co Ltd ズ−ムレンズ
JPS59201014A (ja) * 1983-04-28 1984-11-14 Nitto Kogaku Kk ズ−ムレンズ
JPS6014213A (ja) * 1983-07-06 1985-01-24 Nippon Kogaku Kk <Nikon> 広画角を含む高変倍率ズ−ムレンズ
US4789226A (en) * 1983-07-22 1988-12-06 Olympus Optical Co., Ltd. Zoom lens system
EP0405532A3 (en) * 1989-06-27 1991-03-06 Nikon Corporation Zoom lens
US5568321A (en) * 1990-11-16 1996-10-22 Canon Kabushiki Kaisha Zoom lens
US5748367A (en) * 1994-10-13 1998-05-05 Carl-Zeiss-Stiftung Illuminating device for a stereo microscope
JPH08248319A (ja) * 1995-03-13 1996-09-27 Canon Inc ズームレンズ

Also Published As

Publication number Publication date
JPS6155093B2 (enrdf_load_stackoverflow) 1986-11-26

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