JP4143170B2 - ズームレンズ及びそれを用いた投影装置 - Google Patents

ズームレンズ及びそれを用いた投影装置 Download PDF

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Publication number
JP4143170B2
JP4143170B2 JP14230098A JP14230098A JP4143170B2 JP 4143170 B2 JP4143170 B2 JP 4143170B2 JP 14230098 A JP14230098 A JP 14230098A JP 14230098 A JP14230098 A JP 14230098A JP 4143170 B2 JP4143170 B2 JP 4143170B2
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JP
Japan
Prior art keywords
lens
lens group
conjugate point
zoom
group
Prior art date
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Expired - Fee Related
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JP14230098A
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English (en)
Japanese (ja)
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JPH11326763A (ja
JPH11326763A5 (enExample
Inventor
健 和田
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
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Priority to JP14230098A priority Critical patent/JP4143170B2/ja
Publication of JPH11326763A publication Critical patent/JPH11326763A/ja
Publication of JPH11326763A5 publication Critical patent/JPH11326763A5/ja
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Publication of JP4143170B2 publication Critical patent/JP4143170B2/ja
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Expired - Fee Related legal-status Critical Current

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JP14230098A 1998-05-08 1998-05-08 ズームレンズ及びそれを用いた投影装置 Expired - Fee Related JP4143170B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14230098A JP4143170B2 (ja) 1998-05-08 1998-05-08 ズームレンズ及びそれを用いた投影装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14230098A JP4143170B2 (ja) 1998-05-08 1998-05-08 ズームレンズ及びそれを用いた投影装置

Publications (3)

Publication Number Publication Date
JPH11326763A JPH11326763A (ja) 1999-11-26
JPH11326763A5 JPH11326763A5 (enExample) 2005-09-22
JP4143170B2 true JP4143170B2 (ja) 2008-09-03

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ID=15312177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14230098A Expired - Fee Related JP4143170B2 (ja) 1998-05-08 1998-05-08 ズームレンズ及びそれを用いた投影装置

Country Status (1)

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JP (1) JP4143170B2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6643072B2 (en) * 2000-07-10 2003-11-04 Olympus Corporation Electronic picture taking apparatus having a zoom lens system
JP5053694B2 (ja) * 2007-04-26 2012-10-17 キヤノン株式会社 投射用ズームレンズ、光学ユニット及び画像投射装置
JP6026724B2 (ja) * 2011-04-19 2016-11-16 伯東株式会社 露光装置の投影光学系
JP5722841B2 (ja) * 2012-08-03 2015-05-27 日立マクセル株式会社 投写型映像表示装置
JP2014174340A (ja) * 2013-03-08 2014-09-22 Ricoh Co Ltd ズーム投射光学系および画像表示装置
JP7443046B2 (ja) * 2019-03-29 2024-03-05 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置

Also Published As

Publication number Publication date
JPH11326763A (ja) 1999-11-26

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