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JP2010048913A5 - - Google Patents

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Publication number
JP2010048913A5
JP2010048913A5 JP2008211344A JP2008211344A JP2010048913A5 JP 2010048913 A5 JP2010048913 A5 JP 2010048913A5 JP 2008211344 A JP2008211344 A JP 2008211344A JP 2008211344 A JP2008211344 A JP 2008211344A JP 2010048913 A5 JP2010048913 A5 JP 2010048913A5
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JP
Japan
Prior art keywords
light
display device
projection display
aperture
lens array
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2008211344A
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Japanese (ja)
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JP2010048913A (en
JP5298698B2 (en
Filing date
Publication date
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Priority to JP2008211344A priority Critical patent/JP5298698B2/en
Priority claimed from JP2008211344A external-priority patent/JP5298698B2/en
Publication of JP2010048913A publication Critical patent/JP2010048913A/en
Publication of JP2010048913A5 publication Critical patent/JP2010048913A5/ja
Application granted granted Critical
Publication of JP5298698B2 publication Critical patent/JP5298698B2/en
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Claims (7)

光源と、前記光源からの光を集光し被照明領域に照明する照明光学手段と、前記照明光学手段からの光が照明され、画像を形成するライトバルブと、前記ライトバルブ上の画像をスクリーン上に投写する投写レンズとを備える投写型表示装置であって、
前記照明光学手段は、
前記光源からの放射光を集光する反射鏡と、
前記反射鏡の光軸と垂直な方向に沿って端辺を中心に回動する絞り羽により、前記光源からの光量を調整する絞り機構と、
を備え、
前記絞り羽は、曲げられた形状を有することを特徴とする投写型表示装置。
A light source, illumination optical means for condensing light from the light source and illuminating an illuminated area, a light valve that is illuminated with light from the illumination optical means to form an image, and an image on the light valve is screened A projection display device comprising a projection lens for projecting onto the projection display device,
The illumination optical means includes
A reflecting mirror for collecting the emitted light from the light source;
An aperture mechanism that adjusts the amount of light from the light source by aperture blades that rotate around an edge along a direction perpendicular to the optical axis of the reflecting mirror;
With
The projection type display device, wherein the diaphragm blade has a bent shape.
絞り羽は、光の進行方向に曲げられた楔形状を有することを特徴とする請求項1記載の投写型表示装置。 The projection display device according to claim 1, wherein the aperture blade has a wedge shape bent in a light traveling direction. 絞り羽は、光の進行方向に曲げられた曲面形状を有することを特徴とする請求項1記載の投写型表示装置。 The projection display device according to claim 1, wherein the diaphragm blade has a curved surface shape bent in the light traveling direction. 絞り羽は、絞り角度が70度以上である請求項1乃至請求項3のいずれかに記載の投写型表示装置。 The projection display device according to any one of claims 1 to 3, wherein the aperture blade has an aperture angle of 70 degrees or more. 絞り羽は、光の反射を低減する拡散面を有することを特徴とする請求項1乃至請求項3のいずれかに記載の投写型表示装置。 4. The projection display device according to claim 1, wherein the diaphragm blade has a diffusing surface that reduces reflection of light. 絞り羽は、高反射率の素材であることを特徴とする請求項1乃至請求項5のいずれかに記載の投写型表示装置。 6. The projection display device according to claim 1, wherein the diaphragm blade is made of a material having high reflectivity. 複数のレンズ素子から構成され、反射鏡からの光が入射する第1のレンズアレイ板と、複数のレンズ素子から構成され、前記第1のレンズアレイ板からの光が入射する第2のレンズアレイ板とを備え、
絞り機構が前記第1のレンズアレイ板と前記第2のレンズアレイ板間に配置されることを特徴とする請求項1乃至請求項6のいずれかに記載の投写型表示装置。
A first lens array plate composed of a plurality of lens elements, on which light from the reflecting mirror is incident, and a second lens array composed of a plurality of lens elements, on which light from the first lens array plate is incident With a board,
The projection display device according to claim 1, wherein an aperture mechanism is disposed between the first lens array plate and the second lens array plate.
JP2008211344A 2008-08-20 2008-08-20 Projection display Active JP5298698B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008211344A JP5298698B2 (en) 2008-08-20 2008-08-20 Projection display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008211344A JP5298698B2 (en) 2008-08-20 2008-08-20 Projection display

Publications (3)

Publication Number Publication Date
JP2010048913A JP2010048913A (en) 2010-03-04
JP2010048913A5 true JP2010048913A5 (en) 2011-09-29
JP5298698B2 JP5298698B2 (en) 2013-09-25

Family

ID=42066067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008211344A Active JP5298698B2 (en) 2008-08-20 2008-08-20 Projection display

Country Status (1)

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JP (1) JP5298698B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5509845B2 (en) * 2009-10-27 2014-06-04 セイコーエプソン株式会社 projector
JP5445231B2 (en) * 2010-03-08 2014-03-19 セイコーエプソン株式会社 projector
JP5682154B2 (en) * 2010-06-22 2015-03-11 セイコーエプソン株式会社 Light control device and projector

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4158611B2 (en) * 2002-09-06 2008-10-01 株式会社日立製作所 Projection-type image display device
JP4013979B2 (en) * 2003-09-10 2007-11-28 松下電器産業株式会社 Projection display
JP4823574B2 (en) * 2005-06-08 2011-11-24 日本電産コパル株式会社 Projector aperture device
JP2007133195A (en) * 2005-11-11 2007-05-31 Seiko Epson Corp Projector and method for manufacturing projector
JP2007199432A (en) * 2006-01-27 2007-08-09 Hitachi Ltd Optical unit and projection display device using the same
JP5100430B2 (en) * 2007-06-05 2012-12-19 三菱電機株式会社 Projection display
JP4661954B2 (en) * 2008-03-10 2011-03-30 セイコーエプソン株式会社 Light control device, lighting device, and projector

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