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1. 发明公开

EP1219118A1 IMAGE PROJECTION SYSTEM 有权
标题翻译：图像投影系统
公开(公告)号：EP1219118A1
公开(公告)日：2002-07-03
申请号：EP00945485.1
申请日：2000-07-06
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , READ, Steven, Charles
IPC分类号： H04N9/31 , G02B26/08
CPC分类号： H04N9/3105
摘要： An electronic projector has a projection system that includes a spatial light modulator (SLM) for imparting image information to the projected light beam. The light beam leaving the SLM is prepolarized in a defined orientation and the projected light is polarized in the same orientation so as to effectively block any light that has been scattered within the projector and become depolarized. The SLM may be a digital mirror device (DMD) or a liquid crystal device (LCD). Reflective surfaces within the projector may be covered or coated with material that polarizes the reflected light at an orientation orthogonal to the defined orientation.

2. 发明授权

EP0897555B1 FILM TRANSPORT MECHANISM 失效
标题翻译：胶片输送装置
公开(公告)号：EP0897555B1
公开(公告)日：2003-08-06
申请号：EP97917961.1
申请日：1997-05-06
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , MAXWELL, Ian , TOPORKIEWICZ, Marian
IPC分类号： G03B1/42
CPC分类号： G03B1/18 , G03B1/42
摘要： A compact rolling loop motion picture projector has a rotor of significantly smaller diameter than a conventional such rotor. The radius of curvature of the rotor is selected to be significantly less than the radius of curvature of a film flattener element on which the film is located for projection, and the axis of rotation of the rotor is offset towards a film input sprocket of the projector so as to maintain a minimum film gap between the rotor and the field flattener usptream of the optical axis of the projector. The compact rotor is rotationally supported from above by a "spider" and a projection lamp is located below the rotor for compactness and efficiency of lamp operation.

3. 发明公开

EP0897555A1 FILM TRANSPORT MECHANISM 失效
标题翻译：胶片输送装置
公开(公告)号：EP0897555A1
公开(公告)日：1999-02-24
申请号：EP97917961.0
申请日：1997-05-06
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , MAXWELL, Ian , TOPORKIEWICZ, Marian
IPC分类号： G03B19 , G03B1 , G03B21
CPC分类号： G03B1/18 , G03B1/42
摘要： A compact rolling loop motion picture projector has a rotor of significantly smaller diameter than a conventional such rotor. The radius of curvature of the rotor is selected to be significantly less than the radius of curvature of a film flattener element on which the film is located for projection, and the axis of rotation of the rotor is offset towards a film input sprocket of the projector so as to maintain a minimum film gap between the rotor and the field flattener usptream of the optical axis of the projector. The compact rotor is rotationally supported from above by a 'spider' and a projection lamp is located below the rotor for compactness and efficiency of lamp operation.

4. 发明授权

EP1219118B1 IMAGE PROJECTION SYSTEM 有权
标题翻译：图像投影系统
公开(公告)号：EP1219118B1
公开(公告)日：2004-01-02
申请号：EP00945485.1
申请日：2000-07-06
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , READ, Steven, Charles
IPC分类号： H04N9/31 , G02B26/08
CPC分类号： H04N9/3105
摘要： An electronic projector has a projection system that includes a spatial light modulator (SLM) for imparting image information to the projected light beam. The light beam leaving the SLM is prepolarized in a defined orientation and the projected light is polarized in the same orientation so as to effectively block any light that has been scattered within the projector and become depolarized. The SLM may be a digital mirror device (DMD) or a liquid crystal device (LCD). Reflective surfaces within the projector may be covered or coated with material that polarizes the reflected light at an orientation orthogonal to the defined orientation.

5. 发明公开

EP1269756A2 IMPROVEMENTS IN DMD-BASED IMAGE DISPLAY SYSTEMS 无效
标题翻译：改进的显示设备DMD IMAGE
公开(公告)号：EP1269756A2
公开(公告)日：2003-01-02
申请号：EP01914882.4
申请日：2001-03-15
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , READ, Steven , ZHOU, Samuel, Ziheng , ADKINS, Sean
IPC分类号： H04N9/00
CPC分类号： G09G3/346 , G09G1/06 , G09G3/001 , G09G3/2014 , G09G3/2018 , G09G2300/02 , G09G2310/0235 , G09G2320/0261 , G09G2340/0428 , H04N5/7416 , H04N5/7458 , H04N9/3105 , H04N9/3123 , H04N9/3126
摘要： A projection system having a controller and a plurality of reflective SLMs operatively coupled to the controller to receive image data from the controller. The reflective SLMs are aligned in series to receive light from a light source and to reflect imaging light correlated to the image data.

6. 发明公开

EP1269758A2 METHODS AND APPARATUSES FOR SUPERIMPOSITION OF IMAGES 审中-公开
标题翻译：方法和叠加图像DEVICES
公开(公告)号：EP1269758A2
公开(公告)日：2003-01-02
申请号：EP01914078.9
申请日：2001-03-12
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , READ, Steven , ZHOU, Samuel, Z.
IPC分类号： H04N9/31 , H04N5/74 , H04N13/00
CPC分类号： H04N9/3188 , H04N5/7416 , H04N9/3117 , H04N13/161 , H04N13/324 , H04N13/337 , H04N13/341 , H04N13/363 , H04N13/365 , H04N13/398
摘要： In one embodiment of this invention, two sub-images for superimposition are created using a single spatial light modulator. A first sub-image is projected with the SLM at a first position and, during the same frame, a second sub-image is projected using the same SLM at a second position. In another embodiment, high resolution, stereoscopic images are created using the principle of temporal superimposition and an electronic projection system having a minimum of low resolution SLMs. The invention alternately projects off-set image sub-fields to each eye, which are then combined by the human visual system into a single, integrated high resolution image. The human visual system similarly integrates the separate left and right eye images into a single, three dimensional image.

7. 发明公开

EP1171904A1 METHOD FOR COOLING AN ARC LAMP 有权
标题翻译：方法用于冷却放电灯
公开(公告)号：EP1171904A1
公开(公告)日：2002-01-16
申请号：EP00912298.7
申请日：2000-03-22
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , TOPORKIEWICZ, Marian
IPC分类号： H01J61/52 , F21V29/00
CPC分类号： F21V29/673 , G03B21/2026 , H01J61/526 , H01J61/86
摘要： A xenon arc lamp for a motion picture projector is cooled by providing the anode end of the lamp with a shroud that forms part of a support for that end of the lamp. Cooling air flows into the shroud along the support arm and enters the shroud through a slot in its side wall. The shroud provides an annular air space around the anode end of the lamp and has an annular air outlet through which the cooling air leaves as a "sheet" of laminar air flow which tends to adhere to the surface of the bulb, thereby providing precise cooling. In this way, arc instability is avoided or minimized, while lamp life is extended.

8. 发明授权

EP1300008B1 METHOD AND APPARATUS FOR INCREASING THE DYNAMIC RANGE OF A PROJECTION SYSTEM 有权
标题翻译：方法和设备的投影系统的扩展动态范围
公开(公告)号：EP1300008B1
公开(公告)日：2011-12-21
申请号：EP01957094.4
申请日：2001-07-03
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , ZHOU, Samuel, Z. , ADKINS, Sean , ANIKITCHEV, Sergei G. , MOSS, Graham, H. , ECKERSLEY, Brian
IPC分类号： H04N5/57
CPC分类号： H04N5/7416 , G09G3/346 , G09G2300/023 , G09G2320/0238 , H04N5/20 , H04N5/7458 , H04N9/3105 , H04N9/3126 , H04N9/3182
摘要： Apparatus and techniques for enhancing the dynamic range of electronic projection systems are detailed. Included among the techniques are pre-modulation, luminance compensation, and partial luminance compensation.

9. 发明授权

EP1171904B1 METHOD FOR COOLING AN ARC LAMP 有权
标题翻译： VERFAHREN ZURKÜHLUNGEINER ENTLADUNGSLAMPE
公开(公告)号：EP1171904B1
公开(公告)日：2011-06-01
申请号：EP00912298.7
申请日：2000-03-22
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , TOPORKIEWICZ, Marian
IPC分类号： H01J61/52 , F21V29/00
CPC分类号： F21V29/673 , G03B21/2026 , H01J61/526 , H01J61/86
摘要： A xenon arc lamp for a motion picture projector is cooled by providing the anode end of the lamp with a shroud that forms part of a support for that end of the lamp. Cooling air flows into the shroud along the support arm and enters the shroud through a slot in its side wall. The shroud provides an annular air space around the anode end of the lamp and has an annular air outlet through which the cooling air leaves as a "sheet" of laminar air flow which tends to adhere to the surface of the bulb, thereby providing precise cooling. In this way, arc instability is avoided or minimized, while lamp life is extended.
摘要翻译：用于电影投影仪的氙弧灯通过为灯的阳极端提供形成用于灯的这一端的支撑件的一部分的护罩来冷却。冷却空气沿着支撑臂流入护罩并通过其侧壁中的槽进入护罩。护罩在灯的阳极端部周围提供环形空气空间，并且具有环形空气出口，冷却空气通过该环形空气出口作为片状的层流空气流离开，倾向于粘附到灯泡的表面，从而提供精确的冷却。以这种方式，避免或最小化电弧不稳定性，同时延长灯的寿命。

10. 发明授权

EP1269756B1 IMPROVEMENTS IN DMD-BASED IMAGE DISPLAY SYSTEMS 无效
标题翻译：改进的显示设备DMD IMAGE
公开(公告)号：EP1269756B1
公开(公告)日：2004-05-26
申请号：EP01914882.4
申请日：2001-03-15
申请人： IMAX CORPORATION
发明人： GIBBON, Michael, A. , READ, Steven , ZHOU, Samuel, Ziheng , ADKINS, Sean
IPC分类号： H04N9/00
CPC分类号： G09G3/346 , G09G1/06 , G09G3/001 , G09G3/2014 , G09G3/2018 , G09G2300/02 , G09G2310/0235 , G09G2320/0261 , G09G2340/0428 , H04N5/7416 , H04N5/7458 , H04N9/3105 , H04N9/3123 , H04N9/3126

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