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公开(公告)号：US6067193A
公开(公告)日：2000-05-23
申请号：US172264
申请日：1998-10-14
IPC分类号： G02B27/28 , G02F1/1335 , G02F1/13357 , G02F1/13363 , G02B5/30 , G03B21/14
CPC分类号： G02F1/13362 , G02B27/283 , G02B27/285 , H04N9/3152 , G02F1/133528 , G02F2001/13355 , G02F2001/133638
摘要： A polarization device comprises: a light source; a first lens plate including a plurality of lenses in a planar configuration that divides light emitted from the light source into beams defined by apertures of the plurality of lenses; a second lens plate which is different from the first plate and includes a plurality of lenses in a planar configuration, the plurality of lenses of the first lens plate individually forming light spots at the plurality of lenses of the second lens plate; a polarization beam splitter array constituted of a plurality of polarization beam splitters provided continuously, that performs polarization splitting of light that has been emitted from the light spots of the plurality of lenses of the second lens plate and has entered therein to split the light into p-polarized light and s-polarized light, and emits the split light; and halfwave plates provided at an emission surface of the polarization beam splitter array that convert polarized light emitted from the polarization beam splitter array either from p-polarized light to s-polarized light or from s-polarized light to p-polarized light. And the halfwave plates are provided at the emission surface of the polarization beam splitter array, in different arrangements between a central area of the polarization beam splitter array and a peripheral area excluding the central area.
摘要翻译： 偏振装置包括：光源; 第一透镜板，其包括平面构造的多个透镜，其将从光源发射的光分成由多个透镜的孔限定的光束; 第二透镜板，其与第一板不同，并且包括平面构造的多个透镜，第一透镜板的多个透镜在第二透镜板的多个透镜处分别形成光点; 由连续设置的多个偏振光束分离器构成的偏振分束器阵列，其进行从第二透镜板的多个透镜的光点发射并进入其中的光的偏振分束，将光分为p 偏振光和s偏振光，并发射分光; 以及设置在偏振分束器阵列的发射表面处的半波片，其将偏振分束器阵列发射的偏振光从p偏振光或从s偏振光或从s偏振光转换为p偏振光。 并且半波片设置在偏振分束器阵列的发射表面处，在偏振分束器阵列的中心区域和不包括中心区域的周边区域之间的不同布置中。
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公开(公告)号：US06891577B2
公开(公告)日：2005-05-10
申请号：US10418155
申请日：2003-04-18
申请人： Atsushi Sekine , Tetsuo Hattori
发明人： Atsushi Sekine , Tetsuo Hattori
IPC分类号： G02B5/30 , G02B27/28 , G02F1/1335 , G03B21/00 , H04N9/31
CPC分类号： H04N9/3105
摘要： In a projection display apparatus that analyzes to pick up lights emitted from a plurality of the reflective light valves, color-composes the analyzed lights and projects the color-composed light, a dichroic film is disposed in at least one of optical paths of the respective color lights between the polarizing beam splitters and the dichroic prism. The dichroic film reflects such a component of a color light derived from the composite light incident on the projection optical system that has been reflected by a surface of a lens element constituting the projection optical system and incident on the dichroic prism after passing through a quarter wave phase plate and reflected or transmitted by the dichroic film within the dichroic prism to travel along the optical path of the color light in the reverse direction, thereby deflecting the color light component out of the optical path.
摘要翻译： 在分析拾取从多个反射光阀发出的光的投影显示装置中，对所分析的光进行颜色组合并投影所述颜色构成的光，二向色膜设置在各自的光路中的至少一个光路中 偏光分束器和二向色棱镜之间的色光。 分色膜反射出入射在投影光学系统上的复合光的颜色光的分量，该复合光已被构成投影光学系统的透镜元件的表面反射并入射到分色棱镜上，通过四分之一波 并且由分色棱镜内的二向色膜反射或透射，沿着相反方向的色光的光路行进，从而将色光分量偏离光路。
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公开(公告)号：US06609796B2
公开(公告)日：2003-08-26
申请号：US10042189
申请日：2002-01-11
IPC分类号： G03B2100
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/145 , H04N5/7416 , H04N9/317
摘要： An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a polarization beam splitter for guiding specific polarized light to this light valve and extracting only modulated light coming from the light valve to output it, wherein these light valves and polarization beam splitters are fixed as integrated with a synthesizing optical system comprising a cross dichroic prism and wherein optical path lengths of optical paths of the respective colors are adjusted to be almost equal to each other. A projection image display apparatus comprises the analyzing-synthesizing optical unit.
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公开(公告)号：US06429906B1
公开(公告)日：2002-08-06
申请号：US09594327
申请日：2000-06-14
申请人： Atsushi Sekine , Tetsuo Hattori
发明人： Atsushi Sekine , Tetsuo Hattori
IPC分类号： G02F1335
CPC分类号： G02B27/149 , G02B27/145 , G03B21/28
摘要： Projection displays are disclosed that reduce the loss of image contrast due to angle-of-incidence and color dependencies of liquid crystal display panels, polarizing beamsplitters, and dichroic reflectors. The projection displays comprise an illumination source that provides a light flux that made uniform by an integrator. A color separation system then divides the light flux into red, green, and blue color components. The color-components are directed through field lenses to polarizing beamsplitters and then to liquid crystal light valves. The color components are reflected by the light valves back through the polarizing beamsplitters to a projection lens that forms an image. The projection lens is preferably telecentric. Field lenses are provided that direct substantially collimated color components to the liquid crystal light valves.
摘要翻译： 公开了投影显示器，其减少由于液晶显示面板，偏振分光镜和二向色反射器的入射角和颜色依赖性引起的图像对比度的损失。 投影显示器包括提供由积分器均匀的光通量的照明源。 然后，分色系统将光通量分成红色，绿色和蓝色组分。 颜色分量通过场透镜被引导到偏振分束器，然后到液晶光阀。 颜色分量被光阀反射回通过偏振分束器到形成图像的投影透镜。 投影透镜最好是远心的。 提供了将基本准直的颜色成分引导到液晶光阀的场透镜。
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5.发明授权
公开(公告)号：US6028703A
公开(公告)日：2000-02-22
申请号：US41734
申请日：1998-03-13
申请人： Atsushi Sekine , Tetsuo Hattori
发明人： Atsushi Sekine , Tetsuo Hattori
IPC分类号： G03B21/14
CPC分类号： G03B21/2073 , G03B21/2066
摘要： In the present projection apparatus, R, G and B lights in the form of a S polarized light emitted from a fly-eye lens and a field lens are separated and the S polarized light is converted to a P polarized light so that it is illuminated onto a light valve. The S polarized light separated by the polarization beam splitter is illuminated onto the light valve converted to the P polarized light without being discarded, illuminance of the light onto the light valve is uniform and its polarization azimuth is arranged in the form of the P polarized light.
摘要翻译： 在本投影装置中，将从飞眼透镜和场透镜发射的S偏振光的形式的R，G和B灯分离，并将S偏振光转换为P偏振光，使其被照亮 到光阀上。 由偏振分束器分离的S偏振光被照射到转换成P偏振光的光阀上，而不被丢弃，光对光阀的照度是均匀的，其偏振方位以P偏振光的形式 。
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公开(公告)号：US5959778A
公开(公告)日：1999-09-28
申请号：US988704
申请日：1997-12-11
CPC分类号： H04N9/3105 , H04N9/3167 , H04N5/7441
摘要： Apparatus is disclosed that provides a high-luminance projected image with no color shading or uneven contrast. Light from a light source undergoes color separation by passing through a color-separation optical system (e.g., a cross-dichroic mirror or cross-dichroic prism). The light from the light source can also be split into first and second polarized lights by passage through, e.g., a first polarized-light beamsplitter (PBS). Each color-separated light is modulated by a respective color-signal light valve and undergoes color combining by, e.g., a cross-dichroic prism. The second polarized light, if formed, is modulated by a luminance-signal light valve, undergoes color combining and polarized-light combining by, e.g., a second PBS, and is projected by a projection lens (that comprises an aperture stop). The PBSs, cross-dichroic mirrors, and cross-dichroic prisms are situated where principal rays (defined by the aperture stop) are parallel to the optical axis. The first PBS (if present) and color-separation optical system are preferably arranged between a front illumination lens group and a rear illumination lens group both comprising an illumination relay optical system telecentric on both front and rear sides thereof. Field lenses and relay lenses can be included that comprise a relay optical system forming a magnified image of the color-signal light valves at a position conjugate to the luminance-signal light valve with respect to the projection lens.
摘要翻译： 公开了提供没有颜色阴影或不均匀对比度的高亮度投影图像的装置。 来自光源的光通过分色光学系统（例如，十字分色镜或交叉二向色棱镜）进行颜色分离。 来自光源的光也可以通过例如第一偏振光分束器（PBS）而分裂成第一和第二偏振光。 每个分色光由相应的颜色信号光阀调制，并通过例如交叉二向色棱镜进行颜色组合。 第二偏振光（如果形成）由亮度信号光阀调制，则通过例如第二PBS进行颜色组合和偏振光组合，并由投影透镜（包括孔径光阑）投影。 PBS，交叉二向色镜和交叉二向色棱镜位于主光线（由孔径光阑限定）平行于光轴的位置。 第一PBS（如果存在）和分色光学系统优选地布置在前照明透镜组和后照明透镜组之间，其均包括在其前后两侧的远心照明中继光学系统。 可以包括场透镜和中继透镜，其包括在与亮度信号光阀相对于投影透镜共轭的位置处形成彩色信号光阀的放大图像的中继光学系统。
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公开(公告)号：US06345895B1
公开(公告)日：2002-02-12
申请号：US09453397
申请日：1999-12-03
IPC分类号： G03B2100
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/145 , H04N5/7416 , H04N9/317
摘要： An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a polarization beam splitter for guiding specific polarized light to this light valve and extracting only modulated light coming from the light valve to output it, wherein these light valves and polarization beam splitters are fixed as integrated with a synthesizing optical system comprising a cross dichroic prism and wherein optical path lengths of optical paths of the respective colors are adjusted to be almost equal to each other. A projection image display apparatus comprises the analyzing-synthesizing optical unit.
摘要翻译： 分析合成光学系统具有这样的结构，其中，对于R，G和B的三原色中的每一种，设置有用于调制入射光的光阀和用于将特定偏振光引导到该光阀的偏振分束器 并且仅提取来自光阀的调制光以输出它们，其中这些光阀和偏振分束器被固定为与包括十字分色棱镜的合成光学系统集成，并且其中调节各种颜色的光路的光路长度 几乎相等。 投影图像显示装置包括分析合成光学单元。
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公开(公告)号：US6010221A
公开(公告)日：2000-01-04
申请号：US80932
申请日：1998-05-19
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/145 , H04N9/317 , H04N5/7416
摘要： An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a polarization beam splitter for guiding specific polarized light to this light valve and extracting only modulated light coming from the light valve to output it, wherein these light valves and polarization beam splitters are fixed as integrated with a synthesizing optical system comprising a cross dichroic prism and wherein optical path lengths of optical paths of the respective colors are adjusted to be almost equal to each other. A projection image display apparatus comprises the analyzing-synthesizing optical unit.
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公开(公告)号：US07070282B2
公开(公告)日：2006-07-04
申请号：US10874186
申请日：2004-06-24
申请人： Yuji Manabe , Tetsuo Hattori , Atsushi Sekine
发明人： Yuji Manabe , Tetsuo Hattori , Atsushi Sekine
CPC分类号： G03B21/26
摘要： A projection type display apparatus includes a color separation optical system separating light emitted from a light source into first, second and third color light; reflection type light valves provided each in correspondence to one of the first through third color light; polarization beam splitters provided each in correspondence to one of the first through third color light, which executes polarization separation causing the first through third color light to enter the reflection type light valves, and analyzing light exiting from the reflection type light valves after being modulated; a color composition optical system having a first, a second and a third prism, wherein the analyzed first through third color light undergo color composition; and a projection lens projecting the resulting light from the color composition, and lengths of optical paths wherein each of the first through third color light travels are equal to one another.
摘要翻译： 投影型显示装置包括将从光源发射的光分离为第一，第二和第三色光的分色光学系统; 每个与第一至第三颜色光之一相对应的反射型光阀; 偏振光束分离器分别对应于第一至第三色光之一，其执行使第一至第三色光进入反射型光阀的偏振分离，以及在调制之后分析从反射型光阀出射的光; 一种具有第一，第二和第三棱镜的色彩组合光学系统，其中所分析的第一至第三色光经过颜色组合; 以及投影透镜，从所述颜色组合物投射所得到的光，并且其中所述第一至第三色光中的每一个行进的光路的长度彼此相等。
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公开(公告)号：US06565211B1
公开(公告)日：2003-05-20
申请号：US09692413
申请日：2000-10-20
申请人： Atsushi Sekine , Yuji Manabe , Tetsuo Hattori
发明人： Atsushi Sekine , Yuji Manabe , Tetsuo Hattori
IPC分类号： G03B2114
CPC分类号： H04N9/3105 , G03B21/14 , G03B21/2073 , G03B33/12 , H04N9/3167
摘要： A projection type display device, having a light beam flux converting optical system which makes plural beam fluxes from light emitted from a light source and converts the each beam flux into a parallel beam flux and makes the each beam flux advance in a different direction, a polarized light separating color separating optical system which polarization separates and color separates light which was emitted from the light beam flux converting optical system, plural reflecting type light valves which modulate polarized light components emitted from the polarized light separating color separating optical system based on image information and a color synthesizing and analyzing optical system performing color synthesis and analysis of modulated light which were emitted from the plural reflecting type light valves.
摘要翻译： 一种投影型显示装置，具有光束通量转换光学系统，其从光源发出的光形成多个光束，并将每个光束通量转换为平行光束，并使各光束通量向不同方向前进， 偏振光分离色分离光学系统，其偏振分离和颜色分离从光束转换光学系统发射的光;多个反射型光阀，其基于图像信息调制从偏振光分离色分离光学系统发射的偏振光分量 以及进行从多个反射型光阀发射的调制光的颜色合成和分析的彩色合成分析光学系统。
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