DE69107600T2 - Zoom Objektiv. - Google Patents

Zoom Objektiv.

Info

Publication number
DE69107600T2
DE69107600T2 DE69107600T DE69107600T DE69107600T2 DE 69107600 T2 DE69107600 T2 DE 69107600T2 DE 69107600 T DE69107600 T DE 69107600T DE 69107600 T DE69107600 T DE 69107600T DE 69107600 T2 DE69107600 T2 DE 69107600T2
Authority
DE
Germany
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.)
Expired - Fee Related
Application number
DE69107600T
Other languages
English (en)
Other versions
DE69107600D1 (de
Inventor
Akira Nakamura
Yuichi Nakano
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69107600D1 publication Critical patent/DE69107600D1/de
Publication of DE69107600T2 publication Critical patent/DE69107600T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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 +-++
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE69107600T 1990-12-28 1991-12-26 Zoom Objektiv. Expired - Fee Related DE69107600T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2417122A JP3003226B2 (ja) 1990-12-28 1990-12-28 ズームレンズ

Publications (2)

Publication Number Publication Date
DE69107600D1 DE69107600D1 (de) 1995-03-30
DE69107600T2 true DE69107600T2 (de) 1995-08-03

Family

ID=18525256

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69107600T Expired - Fee Related DE69107600T2 (de) 1990-12-28 1991-12-26 Zoom Objektiv.

Country Status (5)

Country Link
US (1) US5233471A (de)
EP (1) EP0493261B1 (de)
JP (1) JP3003226B2 (de)
KR (1) KR100195316B1 (de)
DE (1) DE69107600T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69219248T2 (de) * 1991-08-30 1997-10-16 Canon Kk Zoomobjektiv
JPH05341187A (ja) * 1992-04-10 1993-12-24 Ricoh Co Ltd 実像式変倍ファインダーおよび倍率遷移可能な実像式変倍ファインダー
US5583698A (en) * 1993-06-07 1996-12-10 Matsushita Electric Industrial Co., Ltd. Aspherical zoom lens
KR0133445B1 (ko) * 1993-09-17 1998-04-23 구자홍 광학 뷰 파인더를 일체화한 리어 포커스방식 줌렌즈
US6886207B1 (en) 1999-06-14 2005-05-03 The Procter & Gamble Company Toothbrush
JP3570253B2 (ja) * 1998-10-28 2004-09-29 ソニー株式会社 ズームレンズ
JP4626135B2 (ja) * 2002-10-04 2011-02-02 株式会社ニコン 大口径比内焦式望遠ズームレンズ
JP4819413B2 (ja) * 2005-06-24 2011-11-24 オリンパス株式会社 ズームレンズ及びそれを用いた撮像装置
JP5087945B2 (ja) * 2007-02-16 2012-12-05 株式会社ニコン ズームレンズと、これを有する光学装置
KR101971475B1 (ko) * 2013-01-03 2019-04-23 한화테크윈 주식회사 줌 렌즈계

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782812A (en) * 1980-11-12 1982-05-24 Canon Inc Zoom lens
JP2538526B2 (ja) * 1986-03-17 1996-09-25 キヤノン株式会社 ズ−ムレンズ
US4802717A (en) * 1986-04-21 1989-02-07 Hughes Aircraft Company Infrared afocal zoom telescope
US4802747A (en) * 1986-09-25 1989-02-07 Canon Kabushiki Kaisha Compact zoom lens
JP2737838B2 (ja) * 1986-11-13 1998-04-08 オリンパス光学工業株式会社 変倍レンズ系
JPH01185608A (ja) * 1988-01-20 1989-07-25 Olympus Optical Co Ltd 変倍レンズ

Also Published As

Publication number Publication date
KR100195316B1 (ko) 1999-06-15
DE69107600D1 (de) 1995-03-30
EP0493261A2 (de) 1992-07-01
JPH04242708A (ja) 1992-08-31
JP3003226B2 (ja) 2000-01-24
EP0493261B1 (de) 1995-02-22
KR920012957A (ko) 1992-07-28
US5233471A (en) 1993-08-03
EP0493261A3 (en) 1992-11-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee