DE2935805A1 - Weitwinkliges zoom-objektiv - Google Patents

Weitwinkliges zoom-objektiv

Info

Publication number
DE2935805A1
DE2935805A1 DE19792935805 DE2935805A DE2935805A1 DE 2935805 A1 DE2935805 A1 DE 2935805A1 DE 19792935805 DE19792935805 DE 19792935805 DE 2935805 A DE2935805 A DE 2935805A DE 2935805 A1 DE2935805 A1 DE 2935805A1
Authority
DE
Germany
Prior art keywords
group
dipl
lens
ing
focal length
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.)
Withdrawn
Application number
DE19792935805
Other languages
German (de)
English (en)
Inventor
Kiyoshi Hayashi
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.)
Nikon Corp
Original Assignee
Nippon Kogaku KK
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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Publication of DE2935805A1 publication Critical patent/DE2935805A1/de
Withdrawn legal-status Critical Current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
    • G02B15/22—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 movable lens means specially adapted for focusing at close distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE19792935805 1978-09-08 1979-09-05 Weitwinkliges zoom-objektiv Withdrawn DE2935805A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10977278A JPS5536833A (en) 1978-09-08 1978-09-08 Wide angle zoom lens system of closest focusing distance

Publications (1)

Publication Number Publication Date
DE2935805A1 true DE2935805A1 (de) 1980-03-20

Family

ID=14518828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792935805 Withdrawn DE2935805A1 (de) 1978-09-08 1979-09-05 Weitwinkliges zoom-objektiv

Country Status (3)

Country Link
US (1) US4266860A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5536833A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2935805A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163511A (en) * 1979-06-08 1980-12-19 Nippon Kogaku Kk <Nikon> 2-group constitution zoom lens
JPS5766426A (en) * 1980-10-11 1982-04-22 Nippon Kogaku Kk <Nikon> Zoom lens barrel
JPH0640170B2 (ja) * 1982-07-23 1994-05-25 キヤノン株式会社 高変倍広角ズ−ムレンズ
JPS607412A (ja) * 1983-06-28 1985-01-16 Olympus Optical Co Ltd ズ−ムレンズ鏡筒
JPS60178420A (ja) * 1984-02-27 1985-09-12 Canon Inc ズ−ムレンズ
US4770509A (en) * 1984-09-28 1988-09-13 Nippon Kogaku K. K. Zoom lens comprising two groups of lenses
JPH0642018B2 (ja) * 1984-10-11 1994-06-01 キヤノン株式会社 ズ−ムレンズ
JPS6276312U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1986-11-06 1987-05-15
JP2729851B2 (ja) * 1990-08-04 1998-03-18 富士写真光機株式会社 レトロフォーカス型広角レンズ
US5406344A (en) * 1992-09-10 1995-04-11 Olympus Optical Co., Ltd. Taking optical system capable of trimming photography
JP3373913B2 (ja) * 1993-11-16 2003-02-04 オリンパス光学工業株式会社 ズームレンズ
JPH0821954A (ja) * 1994-07-06 1996-01-23 Minolta Co Ltd ズームレンズ
JPH09152550A (ja) * 1995-11-29 1997-06-10 Asahi Optical Co Ltd ズームレンズ
JPH10301028A (ja) * 1997-04-30 1998-11-13 Fuji Photo Optical Co Ltd 小型２群ズームレンズ
JP5724639B2 (ja) * 2011-05-30 2015-05-27 リコーイメージング株式会社 ズームレンズ系及びこれを用いた光学機器
CN103858045B (zh) * 2011-08-29 2016-02-24 富士胶片株式会社 变焦镜头和成像设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503354A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-05-11 1975-01-14
GB1523492A (en) * 1974-12-28 1978-09-06 Nippon Kogaku Kk Zoom lens system
JPS5232342A (en) * 1975-09-08 1977-03-11 Canon Inc Variable magnification optical unit
US4189212A (en) * 1976-05-06 1980-02-19 Nippon Kogaku K.K. Wide angle zoom lens system
JPS6035650B2 (ja) * 1976-05-08 1985-08-15 株式会社ニコン コンパクトな広角ズ−ムレンズ
JPS5916248B2 (ja) * 1977-05-13 1984-04-14 旭光学工業株式会社 広角を包括するズ−ム比の大きいズ−ムレンズ

Also Published As

Publication number Publication date
JPS5536833A (en) 1980-03-14
JPS6140969B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1986-09-12
US4266860A (en) 1981-05-12

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal