JP4599071B2 - ズームレンズ及びそれを有する画像投射装置 - Google Patents

ズームレンズ及びそれを有する画像投射装置 Download PDF

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Publication number
JP4599071B2
JP4599071B2 JP2004076473A JP2004076473A JP4599071B2 JP 4599071 B2 JP4599071 B2 JP 4599071B2 JP 2004076473 A JP2004076473 A JP 2004076473A JP 2004076473 A JP2004076473 A JP 2004076473A JP 4599071 B2 JP4599071 B2 JP 4599071B2
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JP
Japan
Prior art keywords
lens
refractive power
zoom
zoom lens
negative
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
JP2004076473A
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English (en)
Japanese (ja)
Other versions
JP2005266103A5 (enrdf_load_stackoverflow
JP2005266103A (ja
Inventor
山崎真司
須藤貴士
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
Priority to JP2004076473A priority Critical patent/JP4599071B2/ja
Priority to CNB2005100527256A priority patent/CN100380161C/zh
Priority to EP05251431.2A priority patent/EP1574890B1/en
Priority to US11/076,535 priority patent/US7215477B2/en
Publication of JP2005266103A publication Critical patent/JP2005266103A/ja
Publication of JP2005266103A5 publication Critical patent/JP2005266103A5/ja
Application granted granted Critical
Publication of JP4599071B2 publication Critical patent/JP4599071B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G02B15/146—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 more than five groups
    • G02B15/1465—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 more than five groups the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Lenses (AREA)
JP2004076473A 2004-03-10 2004-03-17 ズームレンズ及びそれを有する画像投射装置 Expired - Fee Related JP4599071B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004076473A JP4599071B2 (ja) 2004-03-17 2004-03-17 ズームレンズ及びそれを有する画像投射装置
CNB2005100527256A CN100380161C (zh) 2004-03-10 2005-03-09 变焦透镜及具有该变焦透镜的图像显示装置
EP05251431.2A EP1574890B1 (en) 2004-03-10 2005-03-09 Zoom lens and image display apparatus including the zoom lens
US11/076,535 US7215477B2 (en) 2004-03-10 2005-03-09 Zoom lens and image display apparatus including the zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004076473A JP4599071B2 (ja) 2004-03-17 2004-03-17 ズームレンズ及びそれを有する画像投射装置

Publications (3)

Publication Number Publication Date
JP2005266103A JP2005266103A (ja) 2005-09-29
JP2005266103A5 JP2005266103A5 (enrdf_load_stackoverflow) 2007-04-26
JP4599071B2 true JP4599071B2 (ja) 2010-12-15

Family

ID=35090748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004076473A Expired - Fee Related JP4599071B2 (ja) 2004-03-10 2004-03-17 ズームレンズ及びそれを有する画像投射装置

Country Status (1)

Country Link
JP (1) JP4599071B2 (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008083229A (ja) 2006-09-26 2008-04-10 Fujinon Corp 投写型ズームレンズおよび投写型表示装置
JP5053680B2 (ja) 2007-03-29 2012-10-17 キヤノン株式会社 画像投射光学系及び画像投射装置
JP5094239B2 (ja) * 2007-07-02 2012-12-12 キヤノン株式会社 投射光学系及びそれを有する画像投射装置
JP5081045B2 (ja) * 2008-04-11 2012-11-21 富士フイルム株式会社 投写用ズームレンズおよび投写型表示装置
JP5081049B2 (ja) 2008-04-17 2012-11-21 富士フイルム株式会社 投写用ズームレンズおよび投写型表示装置
WO2012114755A1 (ja) 2011-02-24 2012-08-30 富士フイルム株式会社 投写用ズームレンズおよび投写型表示装置
JP5701970B2 (ja) 2011-02-24 2015-04-15 富士フイルム株式会社 投写用ズームレンズおよび投写型表示装置
JP5828393B2 (ja) * 2011-10-17 2015-12-02 セイコーエプソン株式会社 投射用ズームレンズ
JP6418482B2 (ja) * 2014-05-17 2018-11-07 株式会社リコー 投射用ズームレンズおよび投射型画像表示装置
WO2017014317A1 (ja) * 2015-07-23 2017-01-26 コニカミノルタ株式会社 投影装置
JP6769863B2 (ja) * 2016-09-30 2020-10-14 日本電産サンキョー株式会社 広角レンズ
CN107121767B (zh) * 2017-06-27 2022-11-08 湖北久之洋信息科技有限公司 用于dlp工程投影机的高分辨率投影镜头
CN111854635B (zh) * 2020-07-06 2022-11-11 中国科学院光电技术研究所 一种基于液体透镜的非球面检测方法
JP2023044106A (ja) * 2021-09-17 2023-03-30 ソニーグループ株式会社 ズームレンズ、および撮像装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH628742A5 (de) * 1978-01-27 1982-03-15 Bolex Int Sa Varioobjektiv.
JPH1010440A (ja) * 1996-06-21 1998-01-16 Canon Inc ファインダー光学系
US6195209B1 (en) * 1999-05-04 2001-02-27 U.S. Precision Lens Incorporated Projection lenses having reduced lateral color for use with pixelized panels

Also Published As

Publication number Publication date
JP2005266103A (ja) 2005-09-29

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