FR2686160B1 - Systeme de zoom. - Google Patents

Systeme de zoom.

Info

Publication number
FR2686160B1
FR2686160B1 FR9300275A FR9300275A FR2686160B1 FR 2686160 B1 FR2686160 B1 FR 2686160B1 FR 9300275 A FR9300275 A FR 9300275A FR 9300275 A FR9300275 A FR 9300275A FR 2686160 B1 FR2686160 B1 FR 2686160B1
Authority
FR
France
Prior art keywords
zoom system
zoom
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
FR9300275A
Other languages
English (en)
Other versions
FR2686160A1 (fr
Inventor
Takayuki Ito
Kaisha C O Asahi Kogaku Kogyo
Tetsuya 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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2686160A1 publication Critical patent/FR2686160A1/fr
Application granted granted Critical
Publication of FR2686160B1 publication Critical patent/FR2686160B1/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
    • G02B15/142—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 two groups only
    • 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
    • G02B15/142—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 two groups only
    • G02B15/1421—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 two groups only the first group being positive

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR9300275A 1992-01-14 1993-01-14 Systeme de zoom. Expired - Fee Related FR2686160B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4042495A JPH05188293A (ja) 1992-01-14 1992-01-14 ズームレンズ

Publications (2)

Publication Number Publication Date
FR2686160A1 FR2686160A1 (fr) 1993-07-16
FR2686160B1 true FR2686160B1 (fr) 1995-03-10

Family

ID=12637643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9300275A Expired - Fee Related FR2686160B1 (fr) 1992-01-14 1993-01-14 Systeme de zoom.

Country Status (5)

Country Link
US (1) US5463499A (fr)
JP (1) JPH05188293A (fr)
DE (1) DE4300840B4 (fr)
FR (1) FR2686160B1 (fr)
GB (1) GB2263345B (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282461A (en) * 1991-11-25 1995-04-05 Asahi Optical Co Ltd Variable power view finder
GB2261744B (en) * 1991-11-25 1996-07-03 Asahi Optical Co Ltd Variable power view finder with aspheric lens surfaces
JP3253405B2 (ja) * 1993-03-26 2002-02-04 オリンパス光学工業株式会社 ２群ズームレンズ
US5412508A (en) * 1993-07-13 1995-05-02 Industrial Technology Research Institute Compact zoom lens system
JP3366092B2 (ja) * 1993-12-24 2003-01-14 オリンパス光学工業株式会社 高変倍比２群ズームレンズ
US5633760A (en) * 1994-02-03 1997-05-27 Nikon Corporation Zoom lens
JP3366101B2 (ja) * 1994-03-23 2003-01-14 オリンパス光学工業株式会社 高変倍比２群ズームレンズ
JPH07306361A (ja) * 1994-05-11 1995-11-21 Canon Inc 小型のズームレンズ
US5602676A (en) * 1994-11-30 1997-02-11 Eastman Kodak Company Compact zoom lens with reduced aspheric decenter sensitivity
US5642231A (en) * 1994-11-30 1997-06-24 Eastman Kodak Company Compact 3X zoom lens
JPH08338946A (ja) * 1995-06-13 1996-12-24 Minolta Co Ltd ズームレンズ
JPH09127415A (ja) * 1995-11-06 1997-05-16 Fuji Photo Optical Co Ltd ２群ズームレンズ
KR100189064B1 (ko) * 1996-08-30 1999-06-01 이해규 소형 광각 줌렌즈
JP3769373B2 (ja) * 1997-11-19 2006-04-26 フジノン株式会社 明るい広角レンズ
JP3435364B2 (ja) * 1998-12-24 2003-08-11 ペンタックス株式会社 ズームレンズ系
EP1628151A4 (fr) * 2003-05-27 2007-05-23 Konica Minolta Opto Inc Petite optique d'imagerie et dispositif d'imagerie
JP2005352060A (ja) * 2004-06-09 2005-12-22 Fujinon Corp 小型の大口径広角レンズおよびこれを備えたカメラ
KR100616616B1 (ko) * 2004-09-01 2006-08-28 삼성전기주식회사 카메라 모듈의 자동 초점조절 광학계
DE102005038542A1 (de) 2005-08-16 2007-02-22 Forschungszentrum Karlsruhe Gmbh Künstliches Akkommodationssystem
DE102007008374B4 (de) 2007-02-21 2008-11-20 Forschungszentrum Karlsruhe Gmbh Implantierbares System zur Bestimmung des Akkommodationsbedarfes durch Messung der Augapfelorientierung unter Nutzung eines externen Magnetfelds
DE102009059229A1 (de) 2009-12-18 2011-06-22 Karlsruher Institut für Technologie, 76131 Implantierbares System zur Bestimmung des Akkommodationsbedarfs
CN103748496B (zh) 2011-08-25 2016-10-19 富士胶片株式会社 成像镜头和包括该成像镜头的成像设备
JP5778284B2 (ja) 2011-08-25 2015-09-16 富士フイルム株式会社 撮像レンズおよびこれを用いた撮像装置
WO2013027350A1 (fr) * 2011-08-25 2013-02-28 富士フイルム株式会社 Lentille de capture d'images, et dispositif de capture d'images mettant en œuvre celle-ci
TWI460465B (zh) 2012-04-20 2014-11-11 Largan Precision Co Ltd 光學影像鏡頭系統組
TWI474072B (zh) 2012-06-14 2015-02-21 Largan Precision Co Ltd 光學影像鏡片系統組
TWI448725B (zh) 2012-10-22 2014-08-11 Largan Precision Co Ltd 影像擷取光學鏡片系統
KR101547460B1 (ko) * 2013-12-31 2015-08-27 주식회사 코렌 광학 렌즈계
TWI676061B (zh) 2018-08-10 2019-11-01 大立光電股份有限公司 取像光學鏡組、取像裝置及電子裝置
CN115248497A (zh) * 2021-04-28 2022-10-28 华为技术有限公司 光学镜头、摄像头模组和电子设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232342A (en) * 1975-09-08 1977-03-11 Canon Inc Variable magnification optical unit
JPS62264019A (ja) * 1985-11-28 1987-11-17 Asahi Optical Co Ltd コンパクトカメラ用ズ−ムレンズ
JP2715385B2 (ja) * 1987-06-12 1998-02-18 オリンパス光学工業株式会社 コンパクトなズームレンズ
US4936661A (en) * 1987-07-23 1990-06-26 Opcon Associates, Inc. Zoom lens with short back focal length
JPH01193808A (ja) * 1988-01-29 1989-08-03 Asahi Optical Co Ltd コンパクトカメラ用ズームレンズ
US5071235A (en) * 1988-04-15 1991-12-10 Konica Corporation Small type variable focal length lens
JPH0250118A (ja) * 1988-05-02 1990-02-20 Ricoh Co Ltd ズームレンズ
JP2918115B2 (ja) * 1988-09-30 1999-07-12 キヤノン株式会社 防振機能を有した変倍光学系
JP2915934B2 (ja) * 1989-09-29 1999-07-05 旭光学工業株式会社 コンパクトカメラ用ズームレンズ
JP2900434B2 (ja) * 1989-10-13 1999-06-02 ミノルタ株式会社 コンパクトなズームレンズ
US5164859A (en) * 1989-11-21 1992-11-17 Asahi Kogaku Kogyo K.K. Zoom lens system for use with a compact camera having a wide coverage of angles
US5270867A (en) * 1991-12-13 1993-12-14 Eastman Kodak Company Compact zoom lens having a weak front lens group

Also Published As

Publication number Publication date
DE4300840B4 (de) 2005-12-22
JPH05188293A (ja) 1993-07-30
GB2263345A (en) 1993-07-21
US5463499A (en) 1995-10-31
DE4300840A1 (fr) 1993-07-15
FR2686160A1 (fr) 1993-07-16
GB9300381D0 (en) 1993-03-03
GB2263345B (en) 1995-06-07

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060929