公开(公告)号：US6141151A

公开(公告)日：2000-10-31

申请号：US363230

申请日：1999-07-21

申请人： Hideaki Shimonura ,  Yuji Manabe ,  Tetsuo Hattori ,  Masaaki Kusano ,  Atsushi Sekine

发明人： Hideaki Shimonura ,  Yuji Manabe ,  Tetsuo Hattori ,  Masaaki Kusano ,  Atsushi Sekine

IPC分类号： H04N5/74 ,  H04N9/31 ,  G02B27/10

CPC分类号： H04N9/3105 ,  H04N9/3167 ,  H04N5/7441

摘要： Apparatus are disclosed that provide 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。

公开(公告)号：US5959778A

公开(公告)日：1999-09-28

申请号：US988704

申请日：1997-12-11

申请人： Hideaki Shimonura ,  Yuji Manabe ,  Tetsuo Hattori ,  Masaaki Kusano ,  Atsushi Sekine

发明人： Hideaki Shimonura ,  Yuji Manabe ,  Tetsuo Hattori ,  Masaaki Kusano ,  Atsushi Sekine

IPC分类号： H04N5/74 ,  H04N9/31 ,  G02B27/10 ,  G03B21/41

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。

公开(公告)号：US06386710B2

公开(公告)日：2002-05-14

申请号：US09750309

申请日：2000-12-29

申请人： Masaaki Kusano ,  Yuji Manabe ,  Atsushi Sekine

发明人： Masaaki Kusano ,  Yuji Manabe ,  Atsushi Sekine

IPC分类号： G03B2114

CPC分类号： H04N9/3105 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  H04N5/7441

摘要： A projection display apparatus comprises a modulator, an analyzer, and projecting optical system. The modulator includes two-dimensionally arrayed pixel units and it modulates an incident light and emits the modulated light. The analyzer analyzes the emitted light from the modulator. The projection optical system projects the analyzed light from the analyzer. The analyzer includes a polarized beam splitter having a pair of prisms and an adhesive layer held between the pair of prisms. The difference in thickness between thin and thick portions of the adhesive layer is set equal to a predetermined value or less, based on a pixel pitch of the modulator.

摘要翻译： 投影显示装置包括调制器，分析器和投影光学系统。 调制器包括二维排列的像素单元，并调制入射光并发射调制光。 分析仪分析来自调制器的发射光。 投影光学系统投射来自分析仪的分析光。 分析仪包括具有一对棱镜的偏振分束器和保持在该对棱镜之间的粘合剂层。 基于调制器的像素间距，将粘合剂层的薄壁部分和厚部分之间的厚度差设定为等于或小于预定值。

公开(公告)号：US06190014B1

公开(公告)日：2001-02-20

申请号：US09259284

申请日：1999-03-01

申请人： Masaaki Kusano ,  Yuji Manabe ,  Atsushi Sekine

发明人： Masaaki Kusano ,  Yuji Manabe ,  Atsushi Sekine

IPC分类号： G03B2114

CPC分类号： H04N9/3105 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  H04N5/7441

摘要： A projection display apparatus comprises a modulator, an analyzer, and projecting optical system. The modulator includes two-dimensionally arrayed pixel units and it modulates an incident light and emits the modulated light. The analyzer analyzes the emitted light from the modulator. The projection optical system projects the analyzed light from the analyzer. The analyzer includes a polarized beam splitter having a pair of prisms and an adhesive layer held between the pair of prisms. The difference in thickness between thin and thick portions of the adhesive layer is set equal to a predetermined value or less, based on a pixel pitch of the modulator.

摘要翻译： 投影显示装置包括调制器，分析器和投影光学系统。 调制器包括二维排列的像素单元，并调制入射光并发射调制光。 分析仪分析来自调制器的发射光。 投影光学系统投影来自分析仪的分析光。 分析仪包括具有一对棱镜的偏振分束器和保持在该对棱镜之间的粘合剂层。 基于调制器的像素间距，将粘合剂层的薄壁部分和厚部分之间的厚度差设定为等于或小于预定值。

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

IPC分类号： G03B21/14 ,  G03B21/26 ,  G03B21/28 ,  G02B27/14

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。

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。

公开(公告)号：US20060250584A1

公开(公告)日：2006-11-09

申请号：US11377639

申请日：2006-03-17

申请人： Yuji Manabe ,  Kiyoshi Numazaki ,  Hisao Oozeki ,  Tetsuo Hattori ,  Tomoko Hattori

发明人： Yuji Manabe ,  Kiyoshi Numazaki ,  Hisao Oozeki ,  Tetsuo Hattori ,  Tomoko Hattori

IPC分类号： G03B21/00

CPC分类号： G02B27/1086 ,  G02B27/1026 ,  G02B27/1073 ,  G02B27/145 ,  G02B27/149 ,  H04N9/3105

摘要： A cross dichroic prism color-synthesizes a plurality of color lights having entered therein separately and emits color-synthesized light to a projection lens. The cross dichroic prism includes a first dichroic film; and a second dichroic film intersecting the first dichroic film so as to pass through the first dichroic film. The cross dichroicprism is configured so that a color light having entered the cross dichroic prism and having become diffracted at a gap created in the first dichroic film over an area where the second dichroic film passes through the first dichroic film is not projected through the projection lens.

摘要翻译： 十字分色棱镜将分别进入其中的多个彩色光合成，并向投影透镜发出彩色合成光。 十字分色棱镜包括第一二向色膜; 以及与第一二向色膜相交的第二分色膜，以通过第一二向色膜。 十字二色镜被配置为使得已经进入到十字分色棱镜并且在第二二向色膜上产生的间隙处衍射的色光在第二二向色膜通过第一二向色膜的区域之后不通过投影透镜投影 。

公开(公告)号：US20050007555A1

公开(公告)日：2005-01-13

申请号：US10886550

申请日：2004-07-09

申请人： Yuji Manabe ,  Tetsuo Hattori

发明人： Yuji Manabe ,  Tetsuo Hattori

IPC分类号： G02B27/28 ,  G03B21/14

CPC分类号： G03B21/208 ,  G03B21/2066 ,  G03B21/2073

摘要： A projection type display apparatus includes: a reflection type light valve; a polarization beam splitter that emits light obtained through polarization split executed thereat on light from a light source toward the reflection type light valve, analyzes light modulated at the reflection type light valve and includes a light blocking portion disposed near an outer edge of an exit surface through which the analyzed light exits; and a projection lens through which the analyzed light is projected.

摘要翻译： 投影型显示装置包括：反射型光阀; 在从光源向反射型光阀的光上发射通过偏振分离而获得的光的偏振光束分离器，分析在反射型光阀处调制的光，并且包括设置在出射表面的外边缘附近的遮光部分 分析的光线通过其离开; 以及投影透镜，经投射的分析光。

公开(公告)号：US07377655B2

公开(公告)日：2008-05-27

申请号：US10886550

申请日：2004-07-09

申请人： Yuji Manabe ,  Tetsuo Hattori

发明人： Yuji Manabe ,  Tetsuo Hattori

IPC分类号： G03B21/14 ,  G02F1/1335 ,  G02F1/13363

CPC分类号： G03B21/208 ,  G03B21/2066 ,  G03B21/2073

摘要： A projection type display apparatus includes: a reflection type light valve; a polarization beam splitter that emits light obtained through polarization split executed thereat on light from a light source toward the reflection type light valve, analyzes light modulated at the reflection type light valve and includes a light blocking portion disposed near an outer edge of an exit surface through which the analyzed light exits; and a projection lens through which the analyzed light is projected.

摘要翻译： 投影型显示装置包括：反射型光阀; 在从光源向反射型光阀的光上发射通过偏振分离而获得的光的偏振光束分离器，分析在反射型光阀处调制的光，并且包括设置在出射表面的外边缘附近的遮光部分 分析的光线通过其离开; 以及投影透镜，经投射的分析光。

公开(公告)号：US06507326B2

公开(公告)日：2003-01-14

申请号：US09887770

申请日：2001-06-22

申请人： Yuji Manabe ,  Tetsuo Hattori

发明人： Yuji Manabe ,  Tetsuo Hattori

IPC分类号： G09G300

CPC分类号： G02B27/145

摘要： To suppress light loss without deteriorating resolution of a projected image, light is first polarized and separated by a polarizing beam splitter. Green light is separated from a light flux emitted by the polarizing beam splitter by a dichroic mirror having a green light reflection property. A light flux containing blue and red light, which is transmitted by the dichroic mirror, is separated into red light and blue light by a dichroic prism. Resultant color light is modulated and reflected by reflection light valves, returned to the corresponding dichroic mirror or dichroic prism, and combined by the dichroic mirror and the dichroic prism. Resultant combined color light is projected via the polarizing beam splitter and a projection lens. The dichroic prism transmits s-polarized light having wavelengths less than a wavelength substantially within a wavelength band of green light and reflects s-polarized light having larger wavelengths. The dichroic prism transmits p-polarized light having wavelengths less than a wavelength substantially within a wavelength band of green light and reflects p-polarized light having smaller wavelengths.

摘要翻译： 为了抑制光损失而不损害投影图像的分辨率，光首先被偏振分束器偏振并分离。 绿光通过具有绿光反射特性的二向色镜与偏振分束器发射的光束分离。 由分色镜透射的含有蓝色和红色光的光束通过二向色棱镜分离成红色光和蓝色光。 所产生的色光被反射光阀调制和反射，返回到相应的分色镜或二向色棱镜，并通过分色镜和二向色棱镜组合。 通过偏振分束器和投影透镜投射所得到的组合彩色光。 二向色棱镜透射波长小于基本上在绿光波长带内的波长的s偏振光，并反射具有较大波长的s偏振光。 二向色棱镜透射波长小于基本上在绿光波长带内的波长的p偏振光，并且反射具有较小波长的p偏振光。