JP2005266344A - ズームレンズ系 - Google Patents

ズームレンズ系 Download PDF

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Publication number
JP2005266344A
JP2005266344A JP2004079042A JP2004079042A JP2005266344A JP 2005266344 A JP2005266344 A JP 2005266344A JP 2004079042 A JP2004079042 A JP 2004079042A JP 2004079042 A JP2004079042 A JP 2004079042A JP 2005266344 A JP2005266344 A JP 2005266344A
Authority
JP
Japan
Prior art keywords
focal length
lens group
lens
lens system
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.)
Withdrawn
Application number
JP2004079042A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005266344A5 (enExample
Inventor
Takashi Enomoto
隆 榎本
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
Pentax 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 Pentax Corp filed Critical Pentax Corp
Priority to JP2004079042A priority Critical patent/JP2005266344A/ja
Priority to US11/081,497 priority patent/US7164540B2/en
Publication of JP2005266344A publication Critical patent/JP2005266344A/ja
Publication of JP2005266344A5 publication Critical patent/JP2005266344A5/ja
Withdrawn legal-status Critical Current

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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
    • G02B15/144105—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
    • G02B15/143—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 three groups only
    • G02B15/1431—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 three groups only the first group being positive
    • G02B15/143103—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 three groups only the first group being positive arranged ++-

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP2004079042A 2004-03-18 2004-03-18 ズームレンズ系 Withdrawn JP2005266344A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004079042A JP2005266344A (ja) 2004-03-18 2004-03-18 ズームレンズ系
US11/081,497 US7164540B2 (en) 2004-03-18 2005-03-17 Zoom lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004079042A JP2005266344A (ja) 2004-03-18 2004-03-18 ズームレンズ系

Publications (2)

Publication Number Publication Date
JP2005266344A true JP2005266344A (ja) 2005-09-29
JP2005266344A5 JP2005266344A5 (enExample) 2007-04-19

Family

ID=34985969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004079042A Withdrawn JP2005266344A (ja) 2004-03-18 2004-03-18 ズームレンズ系

Country Status (2)

Country Link
US (1) US7164540B2 (enExample)
JP (1) JP2005266344A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011232624A (ja) * 2010-04-28 2011-11-17 Olympus Imaging Corp 撮像装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114397747B (zh) * 2022-01-27 2024-10-15 玉晶光电(厦门)有限公司 光学成像镜头

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000305019A (ja) * 1999-04-20 2000-11-02 Nikon Corp 可変焦点距離レンズ系
JP2001004921A (ja) * 1999-04-23 2001-01-12 Nikon Corp 可変焦点距離レンズ系
JP2001330778A (ja) * 2000-03-13 2001-11-30 Nikon Corp 可変焦点距離レンズ系
JP2002228928A (ja) * 2001-01-31 2002-08-14 Nikon Corp 可変焦点距離レンズ系
JP2002365553A (ja) * 2001-06-11 2002-12-18 Canon Inc ズームレンズ及びそれを有する光学機器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5793533A (en) 1992-10-15 1998-08-11 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens system
JP3380009B2 (ja) 1992-10-15 2003-02-24 ペンタックス株式会社 ズームレンズ系
JP3328001B2 (ja) * 1993-06-15 2002-09-24 オリンパス光学工業株式会社 ズームレンズ
JP3294911B2 (ja) 1993-07-27 2002-06-24 旭光学工業株式会社 ズームレンズ系
JP3836525B2 (ja) 1995-10-25 2006-10-25 ペンタックス株式会社 高変倍ズームレンズ
JPH10268191A (ja) 1997-03-21 1998-10-09 Asahi Optical Co Ltd ズームレンズ系
JP3752097B2 (ja) 1999-03-24 2006-03-08 ペンタックス株式会社 ズームレンズ系
KR100472748B1 (ko) 2000-01-28 2005-03-07 펜탁스 가부시키가이샤 줌 렌즈 시스템
JP2004020898A (ja) 2002-06-17 2004-01-22 Pentax Corp ズームレンズ系
JP2004184525A (ja) 2002-11-29 2004-07-02 Pentax Corp ズームレンズ系
JP2004184526A (ja) 2002-11-29 2004-07-02 Pentax Corp ズームレンズ系
JP2005128191A (ja) 2003-10-23 2005-05-19 Pentax Corp ズームレンズ系

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000305019A (ja) * 1999-04-20 2000-11-02 Nikon Corp 可変焦点距離レンズ系
JP2001004921A (ja) * 1999-04-23 2001-01-12 Nikon Corp 可変焦点距離レンズ系
JP2001330778A (ja) * 2000-03-13 2001-11-30 Nikon Corp 可変焦点距離レンズ系
JP2002228928A (ja) * 2001-01-31 2002-08-14 Nikon Corp 可変焦点距離レンズ系
JP2002365553A (ja) * 2001-06-11 2002-12-18 Canon Inc ズームレンズ及びそれを有する光学機器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011232624A (ja) * 2010-04-28 2011-11-17 Olympus Imaging Corp 撮像装置

Also Published As

Publication number Publication date
US7164540B2 (en) 2007-01-16
US20050207025A1 (en) 2005-09-22

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