JP5358227B2 - インナーズームタイプ且つインナーフォーカスタイプのズームレンズ - Google Patents

インナーズームタイプ且つインナーフォーカスタイプのズームレンズ Download PDF

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JP5358227B2
JP5358227B2 JP2009058408A JP2009058408A JP5358227B2 JP 5358227 B2 JP5358227 B2 JP 5358227B2 JP 2009058408 A JP2009058408 A JP 2009058408A JP 2009058408 A JP2009058408 A JP 2009058408A JP 5358227 B2 JP5358227 B2 JP 5358227B2
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lens group
lens
zoom
focal length
refractive power
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JP2010211056A (ja
JP2010211056A5 (enrdf_load_html_response
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健太 藤田
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Sigma Inc
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Sigma Inc
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JP2009058408A 2009-03-11 2009-03-11 インナーズームタイプ且つインナーフォーカスタイプのズームレンズ Active JP5358227B2 (ja)

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JP2009058408A JP5358227B2 (ja) 2009-03-11 2009-03-11 インナーズームタイプ且つインナーフォーカスタイプのズームレンズ

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JP2009058408A JP5358227B2 (ja) 2009-03-11 2009-03-11 インナーズームタイプ且つインナーフォーカスタイプのズームレンズ

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JP2010211056A JP2010211056A (ja) 2010-09-24
JP2010211056A5 JP2010211056A5 (enrdf_load_html_response) 2012-04-26
JP5358227B2 true JP5358227B2 (ja) 2013-12-04

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JP2009058408A Active JP5358227B2 (ja) 2009-03-11 2009-03-11 インナーズームタイプ且つインナーフォーカスタイプのズームレンズ

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8711489B2 (en) 2011-02-18 2014-04-29 Olympus Imaging Corp. Zoom lens
JP5659036B2 (ja) * 2011-02-18 2015-01-28 オリンパスイメージング株式会社 ズームレンズ
JP6123623B2 (ja) * 2012-12-28 2017-05-10 株式会社リコー 投射用ズームレンズ
JP6252082B2 (ja) * 2012-12-28 2017-12-27 株式会社リコー 投射用ズームレンズおよび画像表示装置
US9638903B2 (en) 2012-12-28 2017-05-02 Ricoh Company, Ltd. Projection zoom lens
US9664883B2 (en) 2012-12-28 2017-05-30 Ricoh Company, Ltd. Image display device
JP6244794B2 (ja) * 2012-12-28 2017-12-13 株式会社リコー 画像表示装置
JP6244795B2 (ja) * 2012-12-28 2017-12-13 株式会社リコー 投射用ズームレンズ
JP6123624B2 (ja) * 2012-12-28 2017-05-10 株式会社リコー 画像表示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2778232B2 (ja) * 1990-09-07 1998-07-23 キヤノン株式会社 広角ズームレンズ
JP3147492B2 (ja) * 1992-05-11 2001-03-19 キヤノン株式会社 ズームレンズ
JP3144153B2 (ja) * 1993-04-16 2001-03-12 キヤノン株式会社 ズームレンズ
JPH11167063A (ja) * 1997-12-04 1999-06-22 Canon Inc ズームレンズ
JP2002311330A (ja) * 2001-04-18 2002-10-23 Canon Inc ズームレンズ及びそれを用いた光学機器

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JP2010211056A (ja) 2010-09-24

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