JP2005150859A5 - - Google Patents
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- JP2005150859A5 JP2005150859A5 JP2003381828A JP2003381828A JP2005150859A5 JP 2005150859 A5 JP2005150859 A5 JP 2005150859A5 JP 2003381828 A JP2003381828 A JP 2003381828A JP 2003381828 A JP2003381828 A JP 2003381828A JP 2005150859 A5 JP2005150859 A5 JP 2005150859A5
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Claims (11)
前記原画像を被投射面に投射する投射光学系と、
前記被投射面に対する前記投射光学系の光軸の角度に関する情報を得る情報取得手段と、
前記情報に基づいて投射画像の輝度を調整する輝度調整手段とを有することを特徴とする画像投射装置。 An image forming element for forming an original image;
A projection optical system for projecting the original image onto a projection surface;
Information acquisition means for obtaining information on the angle of the optical axis of the projection optical system with respect to the projection surface;
An image projecting apparatus comprising: a brightness adjusting unit that adjusts the brightness of the projected image based on the information.
前記原画像を被投射面に投射する投射光学系と、
前記被投射面に対する前記投射光学系の光軸の角度に関する情報を得る角度情報取得手段と、
前記情報に基づいて、投射画像の輝度むらを補正するように前記画像信号を処理する信号処理手段とを有することを特徴とする画像投射装置。 An image forming element that forms an original image according to an image signal;
A projection optical system for projecting the original image onto a projection surface;
Angle information acquisition means for obtaining information related to the angle of the optical axis of the projection optical system with respect to the projection surface;
An image projection apparatus comprising: signal processing means for processing the image signal so as to correct luminance unevenness of the projection image based on the information.
前記信号処理手段は、水平方向および垂直方向での前記輝度むらを補正するように前記画像信号を処理することを特徴とする請求項3に記載の画像投射装置。 The angle information acquisition means measures the distance at at least three points on the projection surface;
The image projection apparatus according to claim 3, wherein the signal processing unit processes the image signal so as to correct the luminance unevenness in a horizontal direction and a vertical direction.
前記信号処理手段は、前記画角情報にも基づいて、前記投射画像の輝度むらを補正するように前記画像信号を処理することを特徴とする請求項2に記載の画像投射装置。 Further comprising angle-of-view information acquisition means for detecting a zoom ratio of the projection optical system and obtaining angle-of-view information related to the projected angle of view based on the detection result;
The image projection apparatus according to claim 2, wherein the signal processing unit processes the image signal so as to correct luminance unevenness of the projection image based on the angle-of-view information.
前記原画像を被投射面に投射する投射光学系と、
前記画像形成素子に対して前記投射光学系を相対移動させる移動手段と、
前記移動手段による前記投射光学系の相対移動量に基づいて投射画像の輝度を調整する輝度調整手段とを有することを特徴とする画像投射装置。 An image forming element for forming an original image;
A projection optical system for projecting the original image onto a projection surface;
Moving means for moving the projection optical system relative to the image forming element;
An image projecting apparatus comprising: a brightness adjusting unit configured to adjust a brightness of a projected image based on a relative movement amount of the projection optical system by the moving unit.
前記原画像を被投射面に投射する投射光学系と、
前記画像形成素子に対して前記投射光学系を、前記投射光学系の光軸に垂直な方向で相対移動させる移動手段と、
前記移動手段による前記投射光学系の相対移動量に基づいて、投射画像の輝度むらを補正するように前記画像信号を処理する信号処理手段とを有することを特徴とする画像投射装置。 An image forming element that forms an original image according to an image signal;
A projection optical system for projecting the original image onto a projection surface;
Moving means for moving the projection optical system relative to the image forming element in a direction perpendicular to the optical axis of the projection optical system;
An image projection apparatus comprising: signal processing means for processing the image signal so as to correct luminance unevenness of a projection image based on a relative movement amount of the projection optical system by the movement means.
前記信号処理手段は、複数の前記補正データの中から前記投射光学系の相対移動量に応じた補正データを読み出して、前記画像信号の処理に使用することを特徴とする請求項9に記載の画像投射装置。 A storage means for storing a plurality of correction data corresponding to the transmitted light amount characteristics from the central portion to the peripheral portion including the optical axis of the projection optical system;
10. The signal processing unit according to claim 9, wherein the signal processing unit reads correction data corresponding to a relative movement amount of the projection optical system from a plurality of the correction data, and uses the correction data for processing the image signal. Image projection device.
前記画像投射装置に画像情報を供給する画像情報供給装置とを有することを特徴とする画像投射システム。 An image projection device according to any one of claims 1 to 10 ,
An image projection system comprising: an image information supply device that supplies image information to the image projection device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003381828A JP4474144B2 (en) | 2003-11-11 | 2003-11-11 | Image projection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003381828A JP4474144B2 (en) | 2003-11-11 | 2003-11-11 | Image projection device |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005150859A JP2005150859A (en) | 2005-06-09 |
JP2005150859A5 true JP2005150859A5 (en) | 2006-12-28 |
JP4474144B2 JP4474144B2 (en) | 2010-06-02 |
Family
ID=34691056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003381828A Expired - Fee Related JP4474144B2 (en) | 2003-11-11 | 2003-11-11 | Image projection device |
Country Status (1)
Country | Link |
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JP (1) | JP4474144B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4961923B2 (en) * | 2006-09-15 | 2012-06-27 | ブラザー工業株式会社 | Projection device |
JP2011176629A (en) * | 2010-02-24 | 2011-09-08 | Sanyo Electric Co Ltd | Controller and projection type video display device |
JP2013190671A (en) * | 2012-03-14 | 2013-09-26 | Ricoh Co Ltd | Image projection device, brightness processing method, and program |
JP6056220B2 (en) * | 2012-07-02 | 2017-01-11 | セイコーエプソン株式会社 | Projector and control method thereof |
JP2016177198A (en) * | 2015-03-20 | 2016-10-06 | アルプス電気株式会社 | Image display device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3118515B2 (en) * | 1998-06-17 | 2000-12-18 | エヌイーシービューテクノロジー株式会社 | Projection display device |
JP3998840B2 (en) * | 1998-12-24 | 2007-10-31 | セイコーエプソン株式会社 | Projection display apparatus and image processing method therefor |
JP3509652B2 (en) * | 1999-08-23 | 2004-03-22 | 日本電気株式会社 | Projector device |
JP2003018502A (en) * | 2001-06-29 | 2003-01-17 | Toshiba Corp | Projection-type display device |
JP3680807B2 (en) * | 2002-03-20 | 2005-08-10 | セイコーエプソン株式会社 | Projector to correct keystone distortion |
JP2003319292A (en) * | 2002-04-22 | 2003-11-07 | Mitsubishi Electric Corp | Projection type image display device |
-
2003
- 2003-11-11 JP JP2003381828A patent/JP4474144B2/en not_active Expired - Fee Related
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