JP4344081B2 - 投写用ズームレンズおよびプロジェクタ装置 - Google Patents

投写用ズームレンズおよびプロジェクタ装置 Download PDF

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Publication number
JP4344081B2
JP4344081B2 JP2000344212A JP2000344212A JP4344081B2 JP 4344081 B2 JP4344081 B2 JP 4344081B2 JP 2000344212 A JP2000344212 A JP 2000344212A JP 2000344212 A JP2000344212 A JP 2000344212A JP 4344081 B2 JP4344081 B2 JP 4344081B2
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Japan
Prior art keywords
lens
group
zoom lens
projection zoom
light
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Expired - Fee Related
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JP2000344212A
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Japanese (ja)
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JP2002148515A (ja
JP2002148515A5 (enrdf_load_stackoverflow
Inventor
政史 吉田
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Nitto Optical Co Ltd
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Nitto Optical Co Ltd
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Priority to JP2000344212A priority Critical patent/JP4344081B2/ja
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Publication of JP2002148515A5 publication Critical patent/JP2002148515A5/ja
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    • 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
    • G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/177—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
JP2000344212A 2000-11-10 2000-11-10 投写用ズームレンズおよびプロジェクタ装置 Expired - Fee Related JP4344081B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000344212A JP4344081B2 (ja) 2000-11-10 2000-11-10 投写用ズームレンズおよびプロジェクタ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000344212A JP4344081B2 (ja) 2000-11-10 2000-11-10 投写用ズームレンズおよびプロジェクタ装置

Publications (3)

Publication Number Publication Date
JP2002148515A JP2002148515A (ja) 2002-05-22
JP2002148515A5 JP2002148515A5 (enrdf_load_stackoverflow) 2007-11-29
JP4344081B2 true JP4344081B2 (ja) 2009-10-14

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ID=18818444

Family Applications (1)

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JP2000344212A Expired - Fee Related JP4344081B2 (ja) 2000-11-10 2000-11-10 投写用ズームレンズおよびプロジェクタ装置

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JP (1) JP4344081B2 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4322567B2 (ja) 2003-06-20 2009-09-02 パナソニック株式会社 ズームレンズ、並びにそれを用いた映像拡大投写システム及びビデオプロジェクタ、並びにそのビデオプロジェクタを用いたリアプロジェクタ及びマルチビジョンシステム
JP4700953B2 (ja) 2004-11-17 2011-06-15 日東光学株式会社 投写用ズームレンズおよびプロジェクタ装置
JP4917823B2 (ja) 2006-04-03 2012-04-18 日東光学株式会社 ズームレンズシステムおよび表示装置
CN100437190C (zh) * 2006-08-28 2008-11-26 利达光电股份有限公司 两组移动式变焦投影镜头

Also Published As

Publication number Publication date
JP2002148515A (ja) 2002-05-22

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