JP2005321584A5 - - Google Patents

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Publication number
JP2005321584A5
JP2005321584A5 JP2004139307A JP2004139307A JP2005321584A5 JP 2005321584 A5 JP2005321584 A5 JP 2005321584A5 JP 2004139307 A JP2004139307 A JP 2004139307A JP 2004139307 A JP2004139307 A JP 2004139307A JP 2005321584 A5 JP2005321584 A5 JP 2005321584A5
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JP
Japan
Prior art keywords
display device
projection
light
image display
type image
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.)
Pending
Application number
JP2004139307A
Other languages
Japanese (ja)
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JP2005321584A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2004139307A priority Critical patent/JP2005321584A/en
Priority claimed from JP2004139307A external-priority patent/JP2005321584A/en
Publication of JP2005321584A publication Critical patent/JP2005321584A/en
Publication of JP2005321584A5 publication Critical patent/JP2005321584A5/ja
Pending legal-status Critical Current

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Claims (8)

光を出射する光源と、A light source that emits light;
前記光源を冷却する冷却ファンと、A cooling fan for cooling the light source;
前記光源の側面に配置された排気ダクトと、An exhaust duct disposed on a side surface of the light source;
前記排気ダクト内に配置され、前記光源からの光を遮光する遮光ルーバーと、A light shielding louver disposed in the exhaust duct and shields light from the light source;
前記排気ダクト内の壁面に形成され、前記光源からの光を遮光する微小突起とを有することを特徴とする投射型映像表示装置。A projection-type image display device, comprising: a minute projection formed on a wall surface in the exhaust duct and configured to shield light from the light source. 光を出射する発光管と、前記発光管からの光を反射又は透過する反射鏡とで形成された光源と、A light source formed by an arc tube that emits light, and a reflecting mirror that reflects or transmits light from the arc tube;
前記光源を冷却する冷却ファンと、A cooling fan for cooling the light source;
前記光源の側面に配置された排気ダクトと、An exhaust duct disposed on a side surface of the light source;
前記排気ダクト内に配置され、前記反射鏡を透過した光を遮光する遮光ルーバーと、A light shielding louver disposed in the exhaust duct and shielding light transmitted through the reflecting mirror;
前記排気ダクト内の壁面に形成され、前記反射鏡を透過した光を遮光する微小突起とを有することを特徴とする投射型映像表示装置。A projection-type image display device, comprising: a minute protrusion formed on a wall surface in the exhaust duct and blocking light transmitted through the reflecting mirror. 請求項１又は２に記載の投射型映像表示装置であって、It is a projection type video display device according to claim 1 or 2,
前記微小突起は、複数個で形成されることを特徴とする投射型映像表示装置。A projection-type image display apparatus, wherein a plurality of the fine protrusions are formed. 請求項１から３の何れかに記載の投射型映像表示装置であって、A projection type image display device according to any one of claims 1 to 3,
前記微小突起は、前記排気ダクト内の前記光が照射される面に形成されることを特徴とする投射型映像表示装置。The projection-type image display device, wherein the minute protrusion is formed on a surface of the exhaust duct on which the light is irradiated. 請求項１から３の何れかに記載の投射型映像表示装置であって、A projection type image display device according to any one of claims 1 to 3,
前記微小突起は、前記遮光ルーバーで反射した光が照射される面に形成されることを特徴とする投射型映像表示装置。The projection-type image display device, wherein the minute protrusion is formed on a surface irradiated with light reflected by the light shielding louver. 請求項５に記載の投射型映像表示装置であって、The projection type video display device according to claim 5,
前記微小突起は、前記遮光ルーバーで反射した光が照射される面と直交する面に形成されることを特徴とする投射型映像表示装置。The projection-type image display device, wherein the minute protrusion is formed on a surface orthogonal to a surface irradiated with light reflected by the light shielding louver. 請求項１から６の何れかに記載の投射型映像表示装置であって、A projection type image display device according to any one of claims 1 to 6,
前記微小突起の形状は、三角柱状であることを特徴とする投射型映像表示装置。The projection type image display device characterized in that the shape of the minute projections is a triangular prism shape. 請求項１から７の何れかに記載の投射型映像表示装置であって、A projection type image display device according to any one of claims 1 to 7,
前記微小突起は、黒色であることを特徴とする投射型映像表示装置。The projection-type image display device, wherein the minute protrusion is black.
JP2004139307A 2004-05-10 2004-05-10 Projection type image display device Pending JP2005321584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004139307A JP2005321584A (en) 2004-05-10 2004-05-10 Projection type image display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004139307A JP2005321584A (en) 2004-05-10 2004-05-10 Projection type image display device

Publications (2)

Publication Number Publication Date
JP2005321584A JP2005321584A (en) 2005-11-17
JP2005321584A5 true JP2005321584A5 (en) 2006-10-12

Family

ID=35468927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004139307A Pending JP2005321584A (en) 2004-05-10 2004-05-10 Projection type image display device

Country Status (1)

Country Link
JP (1) JP2005321584A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4886309B2 (en) * 2006-02-08 2012-02-29 キヤノン株式会社 Image projection device
JP4931563B2 (en) * 2006-11-24 2012-05-16 三菱電機株式会社 Rear projector
JP5207681B2 (en) * 2007-07-27 2013-06-12 キヤノン株式会社 Image projection apparatus and image display system
CN101498886B (en) * 2008-01-29 2010-09-29 佳世达科技股份有限公司 Image forming apparatus capable of regulating light shielding rate of radiating hole according to external environment brightness
JP5197117B2 (en) * 2008-04-10 2013-05-15 キヤノン株式会社 Image projection apparatus and image display system
JP5197119B2 (en) * 2008-04-11 2013-05-15 キヤノン株式会社 Image projection apparatus and image display system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04355742A (en) * 1991-06-04 1992-12-09 Sony Corp Projector
JP2000181361A (en) * 1998-12-14 2000-06-30 Sony Corp Display device
JP2002182003A (en) * 2000-12-14 2002-06-26 Canon Inc Antireflection functional element, optical element, optical system and optical appliance
JP2002352622A (en) * 2001-05-25 2002-12-06 Sharp Corp Light source unit
JP2002365728A (en) * 2001-06-12 2002-12-18 Seiko Epson Corp Projector
JP4055421B2 (en) * 2002-01-23 2008-03-05 セイコーエプソン株式会社 projector
JP2004012827A (en) * 2002-06-07 2004-01-15 Sony Corp Projection-type display device
JP4075509B2 (en) * 2002-08-06 2008-04-16 セイコーエプソン株式会社 Illumination optical device and projector provided with illumination optical device

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