JP5302512B2 - 光学ユニット及び映像表示装置 - Google Patents
光学ユニット及び映像表示装置 Download PDFInfo
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- JP5302512B2 JP5302512B2 JP2007091686A JP2007091686A JP5302512B2 JP 5302512 B2 JP5302512 B2 JP 5302512B2 JP 2007091686 A JP2007091686 A JP 2007091686A JP 2007091686 A JP2007091686 A JP 2007091686A JP 5302512 B2 JP5302512 B2 JP 5302512B2
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- Prior art keywords
- optical
- unit
- light source
- coherent light
- optical element
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- Mechanical Light Control Or Optical Switches (AREA)
Description
Claims (4)
- コヒーレント光を出射する1つ以上のコヒーレント光源と、該コヒーレント光源から得られる出射光を映像表示素子に投影する光伝達手段とを備えて構成される光学ユニットであって、
前記光伝達手段は光路変更手段を有し、
該光路変更手段は、レーザ光が透過する弾性体であって偏光依存性と拡散機能とを有する光学素子と、スペックルを低減するように時間と共に前記光学素子の形状を略光軸方向に変化させる駆動手段とを有し、
該駆動手段は前記光学素子を振動させるように構成し、該振動周波数が前記光学素子の共振周波数ではないことを特徴とする光学ユニット。 - 前記光伝達手段は、さらに、前記コヒーレント光源と前記光学素子との間に前記コヒーレント光源から出射された光を2次元に走査する走査光学系を備えることを特徴とする請求項1に記載の光学ユニット。
- 前記光伝達手段の光路内にインテグレータを設けたことを特徴とする請求項1または2に記載の光学ユニット。
- 請求項1乃至3の何れか一つに記載の光学ユニットを備えたことを特徴とする映像表示装置。
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JP2007091686A JP5302512B2 (ja) | 2007-03-30 | 2007-03-30 | 光学ユニット及び映像表示装置 |
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JP2007091686A JP5302512B2 (ja) | 2007-03-30 | 2007-03-30 | 光学ユニット及び映像表示装置 |
Publications (3)
Publication Number | Publication Date |
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JP2008250024A JP2008250024A (ja) | 2008-10-16 |
JP2008250024A5 JP2008250024A5 (ja) | 2009-07-23 |
JP5302512B2 true JP5302512B2 (ja) | 2013-10-02 |
Family
ID=39975037
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JP2007091686A Expired - Fee Related JP5302512B2 (ja) | 2007-03-30 | 2007-03-30 | 光学ユニット及び映像表示装置 |
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JP (1) | JP5302512B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8172403B2 (en) * | 2009-05-21 | 2012-05-08 | Eastman Kodak Company | Projection with curved speckle reduction element surface |
US8366281B2 (en) * | 2009-05-21 | 2013-02-05 | Eastman Kodak Company | Out-of-plane motion of speckle reduction element |
JP2011059265A (ja) * | 2009-09-08 | 2011-03-24 | Sharp Corp | プロジェクタ装置 |
CN102483563B (zh) * | 2009-09-16 | 2014-11-19 | Nec显示器解决方案株式会社 | 投影式显示设备 |
WO2012033170A1 (ja) | 2010-09-08 | 2012-03-15 | 大日本印刷株式会社 | 投射装置および投射型映像表示装置 |
JP5849564B2 (ja) * | 2011-09-26 | 2016-01-27 | ソニー株式会社 | 照明装置および表示装置 |
JP6332485B2 (ja) * | 2017-01-25 | 2018-05-30 | セイコーエプソン株式会社 | プロジェクター |
CN115373206B (zh) * | 2021-05-21 | 2024-05-24 | 中强光电股份有限公司 | 照明系统及投影装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6594090B2 (en) * | 2001-08-27 | 2003-07-15 | Eastman Kodak Company | Laser projection display system |
JP2003262920A (ja) * | 2002-03-07 | 2003-09-19 | Seiko Epson Corp | 背面投写型表示装置 |
JP4007867B2 (ja) * | 2002-06-25 | 2007-11-14 | オリンパス株式会社 | 電子撮像装置 |
JP5191730B2 (ja) * | 2005-02-25 | 2013-05-08 | パナソニック株式会社 | 二次元画像形成装置 |
JP2008134269A (ja) * | 2005-03-11 | 2008-06-12 | Matsushita Electric Ind Co Ltd | 画像投影装置 |
WO2006098281A1 (ja) * | 2005-03-16 | 2006-09-21 | Matsushita Electric Industrial Co., Ltd. | 画像投影装置 |
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2007
- 2007-03-30 JP JP2007091686A patent/JP5302512B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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JP2008250024A (ja) | 2008-10-16 |
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