JP2004226814A5 - - Google Patents
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- JP2004226814A5 JP2004226814A5 JP2003016072A JP2003016072A JP2004226814A5 JP 2004226814 A5 JP2004226814 A5 JP 2004226814A5 JP 2003016072 A JP2003016072 A JP 2003016072A JP 2003016072 A JP2003016072 A JP 2003016072A JP 2004226814 A5 JP2004226814 A5 JP 2004226814A5
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- optical system
- light
- illumination
- projector
- relay
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- 230000003287 optical effect Effects 0.000 claims 31
- 238000005286 illumination Methods 0.000 claims 20
- 239000003086 colorant Substances 0.000 claims 8
- 238000000926 separation method Methods 0.000 claims 8
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000003786 synthesis reaction Methods 0.000 claims 2
- 230000002194 synthesizing effect Effects 0.000 claims 2
Claims (9)
前記照明光学系から射出された照明光を複数色の照明光に分離する色分離光学系と、
前記色分離光学系によって分離された複数色の照明光をそれぞれ変調する複数の電気光学変調装置と、
前記各電気光学変調装置から射出された変調光を合成する色合成光学系と、
前記色合成光学系から射出された合成光を表示画像として投写する投写光学系と、
前記色分離光学系によって分離された複数色の照明光のうち少なくとも１色の照明光の経路内に位置するリレー光学系とを備えたプロジェクタにおいて、
前記リレー光学系を経て照射される前記電気光学変調装置と前記リレー光学系を経ずに照射される前記電気光学変調装置とで前記電気光学変調装置に照射される照度分布が上下・左右逆転することで前記表示画像に生じる色むらを抑制するために照明光を部分的に遮光する遮光手段をさらに備えたことを特徴とするプロジェクタ。An illumination optical system having a light source for emitting illumination light and an illuminance uniformizing means for making the illuminance distribution of the emitted light from the light source uniform;
A color separation optical system for separating the illumination light emitted from the illumination optical system into illumination lights of a plurality of colors;
A plurality of electro-optic modulation devices that respectively modulate the illumination lights of a plurality of colors separated by the color separation optical system;
A color synthesizing optical system for synthesizing the modulated light emitted from each of the electro-optic modulation devices;
A projection optical system that projects the combined light emitted from the color synthesis optical system as a display image;
In a projector comprising a relay optical system positioned in a path of at least one color illumination light among a plurality of colors illumination light separated by the color separation optical system,
The illuminance distribution irradiated to the electro-optic modulator is reversed vertically and horizontally by the electro-optic modulator irradiated via the relay optical system and the electro-optic modulator irradiated without passing through the relay optical system. The projector further comprises a light shielding means for partially shielding the illumination light in order to suppress the color unevenness generated in the display image.
前記遮光手段が前記リレー光学系内に配置されていることを特徴とするプロジェクタ。The projector according to claim 1, wherein
A projector characterized in that the light shielding means is arranged in the relay optical system.
前記リレー光学系が、前記色分離光学系の近傍に位置する入射側レンズと、この入射側レンズの色合成光学系側に位置する射出側レンズと、前記入射側レンズと前記射出側レンズとの間に介在するリレーレンズとを有し、
前記遮光手段が、このリレー光学系のリレーレンズの近傍に配置されていることを特徴とするプロジェクタ。The projector according to claim 2,
The relay optical system includes an incident side lens positioned in the vicinity of the color separation optical system, an emission side lens positioned on the color synthesis optical system side of the incident side lens, and the incident side lens and the emission side lens. Having a relay lens interposed therebetween,
A projector characterized in that the light shielding means is disposed in the vicinity of a relay lens of the relay optical system.
前記色分離光学系が、前記照明光学系から射出された照明光を３色の照明光に分離する光学系からなり、
前記色分離光学系によって分離された３色の照明光のうち１色の照明光の経路内に前記リレー光学系が配置されていることを特徴とするプロジェクタ。The projector according to any one of claims 1 to 3,
The color separation optical system comprises an optical system that separates the illumination light emitted from the illumination optical system into three colors of illumination light,
A projector characterized in that the relay optical system is arranged in a path of illumination light of one color among the illumination lights of three colors separated by the color separation optical system.
前記色分離光学系が、前記照明光学系から射出された照明光を３色の照明光に分離する光学系からなり、
前記色分離光学系によって分離された３色の照明光のうち２色の照明光の経路内に前記リレー光学系が配置されていることを特徴とするプロジェクタ。The projector according to any one of claims 1 to 3,
The color separation optical system comprises an optical system that separates the illumination light emitted from the illumination optical system into three colors of illumination light,
A projector characterized in that the relay optical system is arranged in a path of illumination light of two colors among the illumination light of three colors separated by the color separation optical system.
前記遮光手段が前記照明光学系内に配置されていることを特徴とするプロジェクタ。The projector according to claim 1, wherein
A projector characterized in that the light shielding means is arranged in the illumination optical system.
前記遮光手段が、光軸に垂直な水平方向に進退可能な遮光板によって構成されていることを特徴とするプロジェクタ。In the projector according to any one of claims 1 to 6,
The projector according to claim 1, wherein the light shielding means comprises a light shielding plate capable of moving back and forth in a horizontal direction perpendicular to the optical axis.
前記遮光手段が、光軸に垂直な鉛直方向に進退可能な遮光板によって構成されていることを特徴とするプロジェクタ。In the projector according to any one of claims 1 to 7,
A projector characterized in that the light shielding means is constituted by a light shielding plate capable of moving back and forth in a vertical direction perpendicular to the optical axis.
前記照度均一化手段が、前記光源からの光を複数の部分光束に分割する第１レンズアレイと、前記第１レンズアレイによって分割された各部分光束の中心軸をシステム光軸に平行に揃える第２レンズアレイと、前記第２レンズアレイの被照明領域側に配置された重畳レンズとからなるインテグレータ光学系であることを特徴とするプロジェクタ。The projector according to any one of claims 1 to 8,
The illuminance equalizing means includes a first lens array that divides the light from the light source into a plurality of partial light beams, and a center axis of each partial light beam divided by the first lens array is aligned in parallel with the system optical axis. A projector comprising: an integrator optical system including a two-lens array and a superimposing lens disposed on the illuminated region side of the second lens array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003016072A JP2004226814A (en) | 2003-01-24 | 2003-01-24 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003016072A JP2004226814A (en) | 2003-01-24 | 2003-01-24 | Projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004226814A JP2004226814A (en) | 2004-08-12 |
| JP2004226814A5 true JP2004226814A5 (en) | 2005-09-02 |
Family
ID=32903646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003016072A Withdrawn JP2004226814A (en) | 2003-01-24 | 2003-01-24 | Projector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2004226814A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5002158B2 (en) * | 2006-01-17 | 2012-08-15 | 株式会社日立製作所 | Projection-type image display device |
| JP4876717B2 (en) | 2006-05-30 | 2012-02-15 | 株式会社日立製作所 | Projection-type image display device |
| KR100797479B1 (en) | 2006-08-21 | 2008-01-24 | 엘지전자 주식회사 | Projection system |
| JP2008216643A (en) * | 2007-03-05 | 2008-09-18 | Sanyo Electric Co Ltd | Projection type display device |
| JP5134924B2 (en) | 2007-11-29 | 2013-01-30 | 株式会社日立製作所 | Projection-type image display device |
| US8147070B2 (en) * | 2007-12-20 | 2012-04-03 | Seiko Epson Corporation | Projector |
| JP2012155341A (en) * | 2012-04-19 | 2012-08-16 | Hitachi Ltd | Projection type video display device |
-
2003
- 2003-01-24 JP JP2003016072A patent/JP2004226814A/en not_active Withdrawn
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