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公开(公告)号：EP0837351A3
公开(公告)日：1998-12-30
申请号：EP97308292.8
申请日：1997-10-17
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M.
CPC classification number: H04N9/3105 , F21V9/00 , F21V9/14 , G02B27/283 , H01J61/025 , H01J61/12 , H01J61/34 , H01J61/40 , H01J65/046 , H04N5/7441 , H04N9/3167
Abstract: A light projection engine apparatus uses a wide angle reflecting polarizer material (preferably 3M DBEF brand double brightness enhancement filter) as a polarizing beamsplitter to direct polarized light to beam splitter/combiner (such as an X▲cube diachroic reflector). The beam splitter/combiner then splits the directed polarized light into separate reflective LCD panels acting as light valves. The LCD panels alter the polarity of the incident light from 0 degrees up to 90 degrees to control which light is passes from the wide angle reflecting polarizer back towards the light source and which light has the necessary polarization change to allow it to pass from the wide angle reflecting polarizer to the lens system. After reflecting off of the LCD panels, the light goes back through the X-cube diachroic reflector, where it is recombined. The recombined light which is of a first polarity is transmitted from the reflecting polarizer to the lens system, while the recombined light which is ofa second polarity is transmitted to the light source. The LCDs are preferably analog polarizing LCDs.
Abstract translation: 光投射引擎装置使用广角反射偏振器材料（优选3M DBEF品牌双亮度增强滤波器）作为偏振分束器以将偏振光引导至分束器/合成器（诸如X▲立方体二向色反射器）。 分束器/组合器然后将定向偏振光分离成充当光阀的单独的反射式LCD面板。 LCD面板将入射光的极性从0度改变到90度，以控制哪个光从广角反射偏振器返回到光源，并且哪个光具有必要的偏振变化以允许其从宽 角度反射偏光镜到透镜系统。 液晶面板反射后，光线通过X立方体二向色反射器返回，在那里重新组合。 具有第一极性的复合光从反射偏振器传输到透镜系统，而具有第二极性的复合光传输到光源。 LCD最好是模拟偏振LCD。
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公开(公告)号：EP0841685A3
公开(公告)日：1999-01-13
申请号：EP97309015.2
申请日：1997-11-10
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M. , Walker, Dale S. , Mercer, William Burton
CPC classification number: G02B27/283 , F21V9/00 , F21V9/14 , H01J61/025 , H01J61/12 , H01J61/34 , H01J61/40 , H01J65/046 , H04N5/7441 , H04N9/3105 , H04N9/3167
Abstract: An electrodeless lamp apparatus of high efficiency employs a reflection system that allows the lamp to reabsorb light energy. The energy is redirected back to the light to provide increased system efficiency. The redirected light is of the wrong polarization and/or wrong parts of the color spectrum. The lamp efficiency is increased because of the optical pumping as well as the reuse (after some downshifting) of the returned light. In one embodiment, a projection system provides an image source or projection engine that includes the improved high efficiency lamp of the present invention.
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Patent Agency Ranking
公开(公告)号：EP0837351A2
公开(公告)日：1998-04-22
申请号：EP97308292.8
申请日：1997-10-17
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M.
CPC classification number: H04N9/3105 , F21V9/00 , F21V9/14 , G02B27/283 , H01J61/025 , H01J61/12 , H01J61/34 , H01J61/40 , H01J65/046 , H04N5/7441 , H04N9/3167
Abstract: A light projection engine apparatus uses a wide angle reflecting polarizer material (preferably 3M DBEF brand double brightness enhancement filter) as a polarizing beamsplitter to direct polarized light to beam splitter/combiner (such as an X▲cube diachroic reflector). The beam splitter/combiner then splits the directed polarized light into separate reflective LCD panels acting as light valves. The LCD panels alter the polarity of the incident light from 0 degrees up to 90 degrees to control which light is passes from the wide angle reflecting polarizer back towards the light source and which light has the necessary polarization change to allow it to pass from the wide angle reflecting polarizer to the lens system. After reflecting off of the LCD panels, the light goes back through the X-cube diachroic reflector, where it is recombined. The recombined light which is of a first polarity is transmitted from the reflecting polarizer to the lens system, while the recombined light which is ofa second polarity is transmitted to the light source. The LCDs are preferably analog polarizing LCDs.
Abstract translation: 光投影引擎装置使用广角反射偏振器材料（优选3M DBEF品牌双亮度增强滤光器）作为偏振分束器将偏振光引导到分束器/组合器（例如X＆utrif＆cube diachro反射器）。 然后，分束器/组合器将定向偏振光分成用作光阀的分开的反射LCD面板。 LCD面板将入射光的极性从0度改变到90度，以控制哪个光从广角反射偏振器返回到光源，哪个光具有必要的偏振变化，以允许其从宽的 角度反射偏振器到透镜系统。 在反射出液晶显示面板后，光线通过X型立方反射镜反射，并重新组合。 具有第一极性的重新组合的光从反射偏振器传输到透镜系统，而具有第二极性的重新组合的光被传输到光源。 LCD最好是模拟偏振LCD。
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公开(公告)号：EP0783133A1
公开(公告)日：1997-07-09
申请号：EP96309443.8
申请日：1996-12-23
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M. , Masters, John R.
CPC classification number: H04N9/3141 , G03B21/10 , G03B21/606 , G06F1/1601 , G09F2013/0422 , G09F2013/145 , H04N5/7408 , H04N9/3147
Abstract: An "extra-folded" projection display system includes a selectively reflective material (e.g., a linear reflecting polarizer) placed immediately behind the system's imaging screen. The display system includes an image projector that projects an image beam containing light of a predetermined linear polarization toward the imaging screen. The linear reflecting polarizer reflects the light in the image beam away from the screen. The reflected image beam then encounters a 1/4-wavelength achromatic retarder which converts the linear polarization to circular polarization. The image beam next hits a mirror that reflects the light back through the 1/4-wavelength achromatic retarder, which converts the circular polarization back to linear polarization, with the polarization director rotated 90° from the original polarization director. The linear reflecting polarizer then allows the light to pass through to the image screen.
Abstract translation: “折叠式”投影显示系统包括立即放置在系统成像屏幕后面的选择性反射材料（例如，线性反射偏振器）。 显示系统包括将包含预定线性偏振光的图像束投影到成像屏幕的图像投影仪。 线性反射偏振器将图像束中的光反射离开屏幕。 然后，反射的图像光束遇到将线偏振转换为圆偏振的1/4波长消色差延迟器。 图像光束接下来将通过1/4波长消色差延迟器反射回来的反射镜，该反射镜将圆偏振转换回线性偏振，偏振光束从原极化引导器旋转90°。 线性反射偏振器然后允许光通过到图像屏幕。
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公开(公告)号：EP0895116A3
公开(公告)日：1999-12-29
申请号：EP98305983.3
申请日：1998-07-28
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M.
IPC: G02F1/1347 , G02F1/1335
CPC classification number: G02F1/13473 , G02F1/133536 , G02F2001/133545
Abstract: Color shutters that include reflecting linear polarizers can be used in projection display applications. The reflecting linear polarizers are used to reflect the light that would have been absorbed by prior art color shutters. The use of reflecting linear polarizers can resolve overheating and degradation problems of prior art system and projection display systems using sequential color operation can be built and operate reliably.
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公开(公告)号：EP0895116A2
公开(公告)日：1999-02-03
申请号：EP98305983.3
申请日：1998-07-28
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M.
IPC: G02F1/1347 , G02F1/1335
CPC classification number: G02F1/13473 , G02F1/133536 , G02F2001/133545
Abstract: Color shutters that include reflecting linear polarizers can be used in projection display applications. The reflecting linear polarizers are used to reflect the light that would have been absorbed by prior art color shutters. The use of reflecting linear polarizers can resolve overheating and degradation problems of prior art system and projection display systems using sequential color operation can be built and operate reliably.
Abstract translation: 包括反射式线偏振器的彩色快门可用于投影显示应用。 反射线性偏振器用于反射现有技术彩色快门所吸收的光。 使用反射线性偏振器可以解决现有技术系统和使用顺序色彩操作的投影显示系统的过热和退化问题，可以构建并可靠地运行。
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公开(公告)号：EP0841685A2
公开(公告)日：1998-05-13
申请号：EP97309015.2
申请日：1997-11-10
Applicant: Compaq Computer Corporation
Inventor： Knox, Richard M. , Walker, Dale S. , Mercer, William Burton
CPC classification number: G02B27/283 , F21V9/00 , F21V9/14 , H01J61/025 , H01J61/12 , H01J61/34 , H01J61/40 , H01J65/046 , H04N5/7441 , H04N9/3105 , H04N9/3167
Abstract: An electrodeless lamp apparatus of high efficiency employs a reflection system that allows the lamp to reabsorb light energy. The energy is redirected back to the light to provide increased system efficiency. The redirected light is of the wrong polarization and/or wrong parts of the color spectrum. The lamp efficiency is increased because of the optical pumping as well as the reuse (after some downshifting) of the returned light. In one embodiment, a projection system provides an image source or projection engine that includes the improved high efficiency lamp of the present invention.
Abstract translation: 的高效率的无电极灯装置采用反射系统确实允许灯再吸收光能。 的能量被重定向回光以提供增加的系统效率。 重定向的光是错误的偏振光和/或色谱的错误的部件。 灯效率增加，因为所述返回光的光泵浦以及重用（一些降档之后）。 在一个实施例中，投影系统提供的图像源或投影引擎也包括本发明的改进的高效率灯。
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