FR2801111B1 - Objectif a focale variable et appareil photographique - Google Patents

Objectif a focale variable et appareil photographique

Info

Publication number
FR2801111B1
FR2801111B1 FR0013147A FR0013147A FR2801111B1 FR 2801111 B1 FR2801111 B1 FR 2801111B1 FR 0013147 A FR0013147 A FR 0013147A FR 0013147 A FR0013147 A FR 0013147A FR 2801111 B1 FR2801111 B1 FR 2801111B1
Authority
FR
France
Prior art keywords
variable focal
photographic apparatus
focal objective
objective
photographic
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
FR0013147A
Other languages
English (en)
Other versions
FR2801111A1 (fr
Inventor
Fumiaki Isui
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Publication of FR2801111A1 publication Critical patent/FR2801111A1/fr
Application granted granted Critical
Publication of FR2801111B1 publication Critical patent/FR2801111B1/fr
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 +-++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR0013147A 1999-10-14 2000-10-13 Objectif a focale variable et appareil photographique Expired - Fee Related FR2801111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29262099 1999-10-14
JP2000304843A JP4659196B2 (ja) 1999-10-14 2000-10-04 ズームレンズ及び撮影装置

Publications (2)

Publication Number Publication Date
FR2801111A1 FR2801111A1 (fr) 2001-05-18
FR2801111B1 true FR2801111B1 (fr) 2006-05-05

Family

ID=26559066

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0013147A Expired - Fee Related FR2801111B1 (fr) 1999-10-14 2000-10-13 Objectif a focale variable et appareil photographique

Country Status (3)

Country Link
US (1) US6342974B1 (fr)
JP (1) JP4659196B2 (fr)
FR (1) FR2801111B1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4653284B2 (ja) * 2000-06-21 2011-03-16 株式会社シグマ 大口径比望遠ズームレンズ
DE10215434B4 (de) * 2002-04-08 2015-01-15 Carl Zeiss Objektiv und Objektivserie
JP2004264458A (ja) 2003-02-28 2004-09-24 Fuji Photo Optical Co Ltd 超高倍率広角ズームレンズ
JP2004264457A (ja) 2003-02-28 2004-09-24 Fuji Photo Optical Co Ltd 超高倍率ズームレンズ
JP4857576B2 (ja) * 2005-03-23 2012-01-18 株式会社ニコン ズームレンズ
JP2007114727A (ja) * 2005-09-26 2007-05-10 Konica Minolta Opto Inc ズームレンズ
JP4914097B2 (ja) * 2006-03-30 2012-04-11 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP4880498B2 (ja) * 2007-03-01 2012-02-22 株式会社タムロン 望遠ズームレンズ
DE102008042221B9 (de) * 2008-09-19 2022-05-12 Carl Zeiss Ag Optisches System sowie Fernrohr mit einem optischen System
JP5911359B2 (ja) * 2012-04-13 2016-04-27 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP5901401B2 (ja) * 2012-04-13 2016-04-06 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
JP5984877B2 (ja) * 2014-06-13 2016-09-06 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
US9739986B2 (en) 2014-06-13 2017-08-22 Canon Kabushiki Kaisha Zoom lens and image pickup apparatus including the same
JP6544975B2 (ja) 2015-04-10 2019-07-17 キヤノン株式会社 ズームレンズおよび撮像装置
CN106125274B (zh) * 2016-08-17 2018-10-02 福建福光股份有限公司 具有超长焦距的宽光谱大靶面高清变焦镜头
JP7140136B2 (ja) * 2017-10-17 2022-09-21 ソニーグループ株式会社 可変焦点距離レンズ系および撮像装置
DE102018204155B4 (de) 2018-03-19 2020-01-23 Carl Zeiss Ag Objektiv mit veränderlicher Brennweite und Verfahren zur Steuerung des Objektivs sowie Fernrohr und Fernglas mit einem solchen Objektiv

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594688B2 (ja) * 1976-03-11 1984-01-31 キヤノン株式会社 ズ−ムレンズ
JPS5915214A (ja) * 1982-07-17 1984-01-26 Canon Inc ズ−ムレンズのフオ−カシング方法
JPS63188110A (ja) * 1987-01-30 1988-08-03 Asahi Optical Co Ltd 望遠ズ−ムレンズ
JP3230523B2 (ja) * 1990-11-27 2001-11-19 株式会社ニコン 内部合焦式のズームレンズ
JP3111766B2 (ja) 1993-07-29 2000-11-27 キヤノン株式会社 ズームレンズ
US5745300A (en) 1993-02-17 1998-04-28 Canon Kabushiki Kaisha Zoom lens of the inner focus type
JPH07140386A (ja) * 1993-11-12 1995-06-02 Asahi Optical Co Ltd インナーフォーカス方式の望遠ズームレンズ
JP3376171B2 (ja) 1995-06-22 2003-02-10 キヤノン株式会社 ズームレンズ
JP3526177B2 (ja) 1997-07-11 2004-05-10 キヤノン株式会社 ズームレンズ
JP3507291B2 (ja) 1997-07-24 2004-03-15 キヤノン株式会社 ズームレンズ
JP3486529B2 (ja) 1997-07-25 2004-01-13 キヤノン株式会社 ズ−ムレンズ

Also Published As

Publication number Publication date
US6342974B1 (en) 2002-01-29
FR2801111A1 (fr) 2001-05-18
JP4659196B2 (ja) 2011-03-30
JP2001183584A (ja) 2001-07-06

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Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 16

ST Notification of lapse

Effective date: 20170630