JP2005077958A5 - - Google Patents
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- JP2005077958A5 JP2005077958A5 JP2003310791A JP2003310791A JP2005077958A5 JP 2005077958 A5 JP2005077958 A5 JP 2005077958A5 JP 2003310791 A JP2003310791 A JP 2003310791A JP 2003310791 A JP2003310791 A JP 2003310791A JP 2005077958 A5 JP2005077958 A5 JP 2005077958A5
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- optical system
- image forming
- forming element
- projection
- integrator
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Claims (10)
第1方向に配列された複数のレンズ部を有する第１インテグレータおよび前記複数のレンズ部にそれぞれ対応した複数のレンズ部を有する第２インテグレータを含み、前記光源からの光束を複数に分割して該複数の分割光束を前記画像形成素子に重畳させて照射する照明光学系と、
前記画像形成素子からの光束を被投射面に投射する投射光学系とを有し、
前記投射光学系の光軸が、前記照明光学系の光軸および前記画像形成素子の中心に対して前記第1方向にシフトしており、
前記第１インテグレータの各レンズ部における少なくとも２点から射出して該レンズ部に対応する前記第２インテグレータのレンズ部の中心を通る光線が、互いに非平行となって前記画像形成素子に入射することを特徴とする投射型表示光学系。 An image forming element for forming an original image;
A first integrator having a plurality of lens portions arranged in a first direction and a second integrator having a plurality of lens portions respectively corresponding to the plurality of lens portions; An illumination optical system for irradiating a plurality of divided light beams by superimposing them on the image forming element;
A projection optical system that projects a light beam from the image forming element onto a projection surface;
The optical axis of the projection optical system is shifted in the first direction with respect to the optical axis of the illumination optical system and the center of the image forming element,
Light rays that are emitted from at least two points in each lens portion of the first integrator and pass through the center of the lens portion of the second integrator corresponding to the lens portion are made non-parallel to each other and enter the image forming element. Projection-type display optical system.
前記第２インテグレータの複数のレンズ部は前記第１方向に１次元配列され、前記複数のレンズ部各々は、前記第1方向に対して直交する方向に延びる母線を有するシリンドリカルレンズであることを特徴とする請求項１又は２に記載の投射型表示光学系。 A plurality of lens portions of the first integrator is arranged one-dimensionally in the first direction, the plurality of lens portions each of Ri cylindrical lens der having generatrices extending in a direction perpendicular to the first direction,
The plurality of lens portions of the second integrator are one-dimensionally arranged in the first direction, and each of the plurality of lens portions is a cylindrical lens having a generatrix extending in a direction orthogonal to the first direction. The projection display optical system according to claim 1 or 2.
第1方向に配列された複数のレンズ部を有する第１インテグレータおよび前記複数のレンズ部にそれぞれ対応した複数のレンズ部を有する第２インテグレータを含み、光源からの光束を複数に分割して該複数の分割光束を前記画像形成素子に重畳させて照射する照明光学系と、
前記画像形成素子からの光束を被投射面に投射する投射光学系とを有し、
前記投射光学系の光軸が、前記照明光学系の光軸および前記画像形成素子の中心に対して前記第1方向の一方の側にシフトしており、
前記第１インテグレータにおいて前記照明光学系の光軸に対して前記第1方向にて対称な位置に配置された一対のレンズ部をそれぞれ第１および第２レンズ部とし、
該第１レンズ部から射出して該第１レンズ部に対応する前記第２インテグレータのレンズ部の中心を通り前記画像形成素子における中心よりも前記第1方向の他方の側にある照明点に至る光線を第１の光線とし、
前記第２レンズ部から射出して該第２レンズ部に対応する前記第２インテグレータのレンズ部の中心を通り前記画像形成素子の前記照明点に至る光線を第２の光線とするとき、
前記第１の光線と前記第２の光線とのなす角度の二等分線が、前記照明光学系の光軸に対して傾いていることを特徴とする投射型表示光学系。 An image forming element for forming an original image;
A first integrator having a plurality of lens portions arranged in a first direction; and a second integrator having a plurality of lens portions respectively corresponding to the plurality of lens portions, wherein the plurality of light beams from a light source are divided into a plurality An illumination optical system that irradiates the image with the split luminous flux superimposed on the image forming element;
A projection optical system that projects a light beam from the image forming element onto a projection surface;
The optical axis of the projection optical system is shifted to one side of the first direction with respect to the optical axis of the illumination optical system and the center of the image forming element,
In the first integrator, a pair of lens portions disposed at positions symmetric with respect to the optical axis of the illumination optical system in the first direction are referred to as first and second lens portions, respectively.
The light is emitted from the first lens portion, passes through the center of the lens portion of the second integrator corresponding to the first lens portion, and reaches the illumination point on the other side in the first direction from the center of the image forming element. Let the ray be the first ray,
When a light beam emitted from the second lens unit and passing through the center of the lens unit of the second integrator corresponding to the second lens unit and reaching the illumination point of the image forming element is a second light beam,
A projection display optical system, wherein a bisector of an angle formed by the first light beam and the second light beam is inclined with respect to an optical axis of the illumination optical system.
前記第２インテグレータの複数のレンズ部は前記第１方向に１次元配列され、前記複数のレンズ部各々は、前記第1方向に対して直交する方向に延びる母線を有するシリンドリカルレンズであることを特徴とする請求項４又は５に記載の投射型表示光学系。 A plurality of lens portions of the first integrator is arranged one-dimensionally in the first direction, the plurality of lens portions each of Ri cylindrical lens der having generatrices extending in a direction perpendicular to the first direction,
A plurality of lens portions of the second integrator are arranged one-dimensionally in the first direction, the plurality of lens portions each of the cylindrical lens der Rukoto having generatrices extending in a direction perpendicular to the first direction 6. The projection type display optical system according to claim 4, wherein the projection type display optical system is characterized.
請求項１から６のいずれか１つに記載の投射型表示光学系と、
前記画像形成素子を駆動する駆動回路とを含むことを特徴とする投射型画像表示装置。 The light source;
A projection display optical system according to any one of claims 1 to 6;
A projection type image display apparatus comprising: a drive circuit for driving the image forming element.
第1方向に配列された複数のレンズ部を有する第１インテグレータおよび前記複数のレンズ部にそれぞれ対応した複数のレンズ部を有する第２光学インテグレータを含み、光源からの光束を複数に分割して該複数の分割光束を前記画像形成素子に重畳させて照射する照明光学系と、
前記画像形成素子からの光束を被投射面に投射する投射光学系とを有し、
前記投射光学系の光軸が、前記照明光学系の光軸および前記画像形成素子の中心に対して前記第1方向にシフトしており、
前記投射光学系の入射瞳が、前記画像形成素子よりも前記投射光学系側の有限位置にあり、かつ以下の条件を満足することを特徴とする投射型表示光学系。
０＜｜ｙ｜／｜Ｌｐｒｊ｜＜０．１５
ここで、ｙは前記画像形成素子上での中心からの高さであり、Ｌｐｒｊは前記画像形成素子から前記投射光学系の入射瞳位置までの距離である。 An image forming element for forming an original image;
A first integrator having a plurality of lens portions arranged in a first direction and a second optical integrator having a plurality of lens portions respectively corresponding to the plurality of lens portions; An illumination optical system for irradiating a plurality of divided light beams by superimposing them on the image forming element;
A projection optical system that projects a light beam from the image forming element onto a projection surface;
The optical axis of the projection optical system is shifted in the first direction with respect to the optical axis of the illumination optical system and the center of the image forming element,
A projection type display optical system characterized in that an entrance pupil of the projection optical system is at a finite position on the projection optical system side of the image forming element and satisfies the following conditions.
0 <| y | / | L prj | <0.15
Here, y is the height from the center on the image forming element, and L prj is the distance from the image forming element to the entrance pupil position of the projection optical system.
請求項８又は９に記載の投射型表示光学系と、
前記画像形成素子を駆動する駆動回路とを含むことを特徴とする投射型画像表示装置。
The light source;
A projection display optical system according to claim 8 or 9,
A projection type image display apparatus comprising: a drive circuit for driving the image forming element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003310791A JP4827371B2 (en) | 2003-09-02 | 2003-09-02 | Projection type display optical system and projection type image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003310791A JP4827371B2 (en) | 2003-09-02 | 2003-09-02 | Projection type display optical system and projection type image display device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005077958A JP2005077958A (en) | 2005-03-24 |
| JP2005077958A5 true JP2005077958A5 (en) | 2006-10-19 |
| JP4827371B2 JP4827371B2 (en) | 2011-11-30 |
Family
ID=34412525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003310791A Expired - Fee Related JP4827371B2 (en) | 2003-09-02 | 2003-09-02 | Projection type display optical system and projection type image display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4827371B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023245397A1 (en) * | 2022-06-20 | 2023-12-28 | 京东方科技集团股份有限公司 | Projector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3339058B2 (en) * | 1991-10-09 | 2002-10-28 | セイコーエプソン株式会社 | Projection optical system and projection display device |
| JPH08254753A (en) * | 1995-03-16 | 1996-10-01 | Canon Inc | Picture projector |
| JP3529578B2 (en) * | 1997-03-06 | 2004-05-24 | 株式会社東芝 | Projection type video display |
| JP3651229B2 (en) * | 1998-02-18 | 2005-05-25 | セイコーエプソン株式会社 | Projection display |
| JP2000089684A (en) * | 1998-09-16 | 2000-03-31 | Victor Co Of Japan Ltd | Projection type picture display device |
| JP3622557B2 (en) * | 1999-02-23 | 2005-02-23 | セイコーエプソン株式会社 | Polarization conversion optical system, illumination optical system, and projection display device |
| JP2001215610A (en) * | 2000-01-28 | 2001-08-10 | Nec Corp | Projector device with lens shift function |
| JP2003035902A (en) * | 2001-07-25 | 2003-02-07 | Toshiba Corp | Illuminator of projection type liquid crystal projector |
-
2003
- 2003-09-02 JP JP2003310791A patent/JP4827371B2/en not_active Expired - Fee Related
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