JP2001100100A - 投映用ズームレンズ - Google Patents

投映用ズームレンズ

Info

Publication number
JP2001100100A
JP2001100100A JP27547699A JP27547699A JP2001100100A JP 2001100100 A JP2001100100 A JP 2001100100A JP 27547699 A JP27547699 A JP 27547699A JP 27547699 A JP27547699 A JP 27547699A JP 2001100100 A JP2001100100 A JP 2001100100A
Authority
JP
Japan
Prior art keywords
lens
lens group
negative
positive
group
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.)
Pending
Application number
JP27547699A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001100100A5 (enExample
Inventor
Koji Shiokawa
浩司 塩川
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.)
Cosina Co Ltd
Original Assignee
Cosina 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 Cosina Co Ltd filed Critical Cosina Co Ltd
Priority to JP27547699A priority Critical patent/JP2001100100A/ja
Publication of JP2001100100A publication Critical patent/JP2001100100A/ja
Publication of JP2001100100A5 publication Critical patent/JP2001100100A5/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems
    • 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
    • G02B15/145—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 five groups only
    • G02B15/1455—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 five groups only the first group being negative
    • G02B15/145523—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 five groups only the first group being negative arranged -++-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP27547699A 1999-09-29 1999-09-29 投映用ズームレンズ Pending JP2001100100A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27547699A JP2001100100A (ja) 1999-09-29 1999-09-29 投映用ズームレンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27547699A JP2001100100A (ja) 1999-09-29 1999-09-29 投映用ズームレンズ

Publications (2)

Publication Number Publication Date
JP2001100100A true JP2001100100A (ja) 2001-04-13
JP2001100100A5 JP2001100100A5 (enExample) 2005-05-12

Family

ID=17556071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27547699A Pending JP2001100100A (ja) 1999-09-29 1999-09-29 投映用ズームレンズ

Country Status (1)

Country Link
JP (1) JP2001100100A (enExample)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085438A1 (en) * 2002-04-05 2003-10-16 Olympus Corporation Zoom lens and electronic imaging apparatus using it
JP2006084971A (ja) * 2004-09-17 2006-03-30 Canon Inc ズームレンズ及びそれを有する画像投射装置
US7227693B2 (en) 2004-08-30 2007-06-05 Fujinon Corporation Zoom lens and projection display device using the zoom lens
CN100346188C (zh) * 2006-01-20 2007-10-31 中国兵器工业第二O五研究所 投影仪用连续变焦投影镜头
US7365910B2 (en) * 2001-05-14 2008-04-29 Olympus Corporation Electronic image pickup system
JP2009020283A (ja) * 2007-07-11 2009-01-29 Fujinon Corp 投影用ズームレンズおよび投写型表示装置
JP2010044395A (ja) * 2002-04-05 2010-02-25 Olympus Corp ズームレンズとそれを用いた電子撮像装置
JP2010122326A (ja) * 2008-11-17 2010-06-03 Fujinon Corp 投写用ズームレンズおよび投写型表示装置
CN102109667A (zh) * 2009-12-28 2011-06-29 富士胶片株式会社 用于投射的变焦镜头和投射式显示设备
US8072690B2 (en) 2008-12-08 2011-12-06 Fujinon Corporation Projection zoom lens system and projection type display apparatus
US8363331B2 (en) 2009-12-22 2013-01-29 Canon Kabushiki Kaisha Zoom lens
CN110441895A (zh) * 2019-07-30 2019-11-12 中影巴可（北京）电子有限公司 4k像素级高解像力的投影变焦镜头
CN113960753A (zh) * 2018-07-13 2022-01-21 玉晶光电(厦门)有限公司 光学成像镜头
CN119882202A (zh) * 2024-12-26 2025-04-25 深圳市唯卓仕科技有限公司 一种大光圈变焦镜头及图像拾取装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02118507A (ja) * 1988-10-27 1990-05-02 Canon Inc バックフォーカスの長いレンズ系
JPH05241072A (ja) * 1992-02-28 1993-09-21 Konica Corp ズームレンズ
JPH09230242A (ja) * 1996-02-22 1997-09-05 Nikon Corp ズームレンズ
JPH11101940A (ja) * 1997-09-26 1999-04-13 Ricoh Opt Ind Co Ltd 投射用ズームレンズ
JP2000137165A (ja) * 1998-11-02 2000-05-16 Cosina Co Ltd 投映用ズームレンズ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02118507A (ja) * 1988-10-27 1990-05-02 Canon Inc バックフォーカスの長いレンズ系
JPH05241072A (ja) * 1992-02-28 1993-09-21 Konica Corp ズームレンズ
JPH09230242A (ja) * 1996-02-22 1997-09-05 Nikon Corp ズームレンズ
JPH11101940A (ja) * 1997-09-26 1999-04-13 Ricoh Opt Ind Co Ltd 投射用ズームレンズ
JP2000137165A (ja) * 1998-11-02 2000-05-16 Cosina Co Ltd 投映用ズームレンズ

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7365910B2 (en) * 2001-05-14 2008-04-29 Olympus Corporation Electronic image pickup system
WO2003085438A1 (en) * 2002-04-05 2003-10-16 Olympus Corporation Zoom lens and electronic imaging apparatus using it
JP2010044395A (ja) * 2002-04-05 2010-02-25 Olympus Corp ズームレンズとそれを用いた電子撮像装置
US7227693B2 (en) 2004-08-30 2007-06-05 Fujinon Corporation Zoom lens and projection display device using the zoom lens
JP2006084971A (ja) * 2004-09-17 2006-03-30 Canon Inc ズームレンズ及びそれを有する画像投射装置
US7079324B2 (en) 2004-09-17 2006-07-18 Canon Kabushiki Kaisha Zoom lens and image projection apparatus including the same
CN100346188C (zh) * 2006-01-20 2007-10-31 中国兵器工业第二O五研究所 投影仪用连续变焦投影镜头
JP2009020283A (ja) * 2007-07-11 2009-01-29 Fujinon Corp 投影用ズームレンズおよび投写型表示装置
JP2010122326A (ja) * 2008-11-17 2010-06-03 Fujinon Corp 投写用ズームレンズおよび投写型表示装置
US8072690B2 (en) 2008-12-08 2011-12-06 Fujinon Corporation Projection zoom lens system and projection type display apparatus
US8363331B2 (en) 2009-12-22 2013-01-29 Canon Kabushiki Kaisha Zoom lens
CN102109667A (zh) * 2009-12-28 2011-06-29 富士胶片株式会社 用于投射的变焦镜头和投射式显示设备
JP2011154339A (ja) * 2009-12-28 2011-08-11 Fujifilm Corp 投写用ズームレンズおよび投写型表示装置
CN113960753A (zh) * 2018-07-13 2022-01-21 玉晶光电(厦门)有限公司 光学成像镜头
US12038623B2 (en) 2018-07-13 2024-07-16 Genius Electronic Optical (Xiamen) Co., Ltd. Optical imaging lens
CN110441895A (zh) * 2019-07-30 2019-11-12 中影巴可（北京）电子有限公司 4k像素级高解像力的投影变焦镜头
CN110441895B (zh) * 2019-07-30 2024-05-03 中影巴可（北京）电子有限公司 4k像素级高解像力的投影变焦镜头
CN119882202A (zh) * 2024-12-26 2025-04-25 深圳市唯卓仕科技有限公司 一种大光圈变焦镜头及图像拾取装置

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