JP2015022020A - 投射光学装置及び画像投射装置 - Google Patents

投射光学装置及び画像投射装置 Download PDF

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Publication number
JP2015022020A
JP2015022020A JP2013147860A JP2013147860A JP2015022020A JP 2015022020 A JP2015022020 A JP 2015022020A JP 2013147860 A JP2013147860 A JP 2013147860A JP 2013147860 A JP2013147860 A JP 2013147860A JP 2015022020 A JP2015022020 A JP 2015022020A
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Prior art keywords
projection
image
projection optical
heat
unit
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JP2013147860A
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Japanese (ja)
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JP2015022020A5 (enExample
Inventor
敏伸 松山
Toshinobu Matsuyama
敏伸 松山
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Ricoh Co Ltd
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Ricoh Co Ltd
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Priority to JP2013147860A priority Critical patent/JP2015022020A/ja
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Publication of JP2015022020A5 publication Critical patent/JP2015022020A5/ja
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JP2013147860A 2013-07-16 2013-07-16 投射光学装置及び画像投射装置 Pending JP2015022020A (ja)

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JP2013147860A JP2015022020A (ja) 2013-07-16 2013-07-16 投射光学装置及び画像投射装置

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JP2015022020A5 JP2015022020A5 (enExample) 2017-01-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017021291A (ja) * 2015-07-14 2017-01-26 株式会社リコー 画像投影装置
US9829671B2 (en) 2015-07-30 2017-11-28 Ricoh Company, Ltd. Projection lens unit, optical engine, and image projecting apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006139022A (ja) * 2004-11-11 2006-06-01 Seiko Epson Corp プロジェクタ
JP2006301368A (ja) * 2005-04-21 2006-11-02 Casio Comput Co Ltd データプロジェクタ
JP2010060884A (ja) * 2008-09-04 2010-03-18 Casio Comput Co Ltd 投影装置、投影方法及びプログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006139022A (ja) * 2004-11-11 2006-06-01 Seiko Epson Corp プロジェクタ
JP2006301368A (ja) * 2005-04-21 2006-11-02 Casio Comput Co Ltd データプロジェクタ
JP2010060884A (ja) * 2008-09-04 2010-03-18 Casio Comput Co Ltd 投影装置、投影方法及びプログラム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017021291A (ja) * 2015-07-14 2017-01-26 株式会社リコー 画像投影装置
US9829671B2 (en) 2015-07-30 2017-11-28 Ricoh Company, Ltd. Projection lens unit, optical engine, and image projecting apparatus

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