公开(公告)号：US06795243B1

公开(公告)日：2004-09-21

申请号：US10262520

申请日：2002-10-01

申请人： Anthony D. McGettigan ,  Clark Pentico ,  Markus Duelli ,  Edward S. Sherman ,  John D. Corless

发明人： Anthony D. McGettigan ,  Clark Pentico ,  Markus Duelli ,  Edward S. Sherman ,  John D. Corless

IPC分类号： G02B2728

CPC分类号： G02B6/10 ,  G02B5/201 ,  G02B5/3058 ,  G02B27/286 ,  G02F1/13362 ,  Y10S385/901

摘要： A recirculating light polarizer utilizes a reflective polarizer on the exit face of a light integrator, such as a light pipe or light tunnel. Light is provided to the light integrator and light of one polarization is transmitted through the polarizer, the remaining light being reflected back into the integrator. The back-reflected light accumulates polarization shift before it eventually is reflected back to the polarizer. The reflected light is further homogenized on its trip back to the polarizer. This process is typically repeated several times to enhance the light output from the light pipe assembly, with some light being lost in each cycle due to various loss mechanisms. A polarization state modifier, such as a retarder plate or phase-shifting coatings, may be included in the recirculating light path to enhance polarization shift.

摘要翻译： 循环光偏振器利用光积分器的出射面上的反射偏振器，例如光管或光通道。 光被提供给光积分器，并且一个偏振的光透射通过偏振器，剩余的光被反射回到积分器中。 后反射光在其最终被反射回偏振器之前累积偏振偏移。 反射光在其行程上进一步均匀化回到偏振器。 该过程通常重复几次以增强来自光管组件的光输出，由于各种损耗机制，每个循环中的一些光损失。 可以在再循环光路中包括诸如延迟板或相移涂层的偏振态调节剂以增强偏振偏移。

公开(公告)号：US20050128364A1

公开(公告)日：2005-06-16

申请号：US11033695

申请日：2005-01-11

申请人： Clark Pentico ,  Michael Newell

发明人： Clark Pentico ,  Michael Newell

IPC分类号： H04N9/31 ,  H04N5/74

CPC分类号： H04N9/3167 ,  H04N9/3105 ,  H04N9/3141

摘要： A color management system for use with projection displays includes an image assimilator and an analyzer. The image assimilator comprises a panel that produces a light beam comprising spatial information. The image assimilator also comprises a field lens positioned to receive the light beam and configured to emit a converging light beam whose cross-sectional area decreases with distance from the field lens. In an exemplary embodiment, a plurality of image assimilators and associated analyzers are included, each having a field lens for emitting a converging light beam. The analyzers are configured for producing filtered light outputs with improved contrast relative to the converging light beams. In addition, the converging nature of the field lens emitted light beams enables the size of the analyzers and other downstream components to be minimized. Accordingly, this embodiment produces images having dramatically improved levels of contrast with reduced size relative to prior art systems.

摘要翻译： 用于投影显示器的颜色管理系统包括图像同化器和分析器。 图像同化器包括产生包括空间信息的光束的面板。 图像同化器还包括位于接收光束并被配置为发射会聚光束的场透镜，该会聚光束的横截面积随距离场透镜的距离而减小。 在示例性实施例中，包括多个图像同化器和相关联的分析器，每个具有用于发射会聚光束的场透镜。 分析器被配置为产生相对于会聚光束具有改善的对比度的滤光光输出。 此外，场透镜发射光束的会聚特性使分析仪和其它下游部件的尺寸最小化。 因此，与现有技术的系统相比，该实施例产生具有显着提高的对比度水平的图像，并且尺寸减小。

公开(公告)号：US20050036203A1

公开(公告)日：2005-02-17

申请号：US10917054

申请日：2004-08-12

申请人： John Ferri ,  Michael Newell ,  Clark Pentico

发明人： John Ferri ,  Michael Newell ,  Clark Pentico

IPC分类号： G02B27/00 ,  G02B27/09 ,  G02B27/28

CPC分类号： G02B27/0994 ,  G02B27/0905 ,  G02B27/283 ,  G03B21/2073 ,  G03B21/208 ,  H04N9/3152

摘要： The present invention relates to a folded front end unit used in a light engine of a projection display device. The front end unit comprises a light source for generating a beam of light, and a lightpipe for providing spatial uniformity to the beam of light. Polarization-dependent front end units include polarization beam splitters for separating the light into orthogonally polarized sub-beams, and a polarization rotating element, e.g. a waveplate, for rotating the polarization of one of the sub-beams. In accordance with the present invention, a prism is positioned between the light source and the lightpipe for reflecting the light into the lightpipe. The difference in refractive index between the air and the prism decreases the cone angle of the beam of light enough to effectively increase the distance between the light source and the lightpipe to compensate for the added distance required to fold the light.

摘要翻译： 本发明涉及一种用于投影显示装置的光引擎中的折叠前端单元。 前端单元包括用于产生光束的光源和用于为光束提供空间均匀性的光管。 偏振相关的前端单元包括用于将光分离为正交极化子束的偏振分束器，以及偏振旋转元件，例如， 波片，用于旋转一个子光束的偏振。 根据本发明，棱镜位于光源和光管之间，用于将光反射到光管中。 空气和棱镜之间的折射率的差异减小了光束的锥角，足以有效地增加光源和光管之间的距离，以补偿折叠光所需的附加距离。

公开(公告)号：US07347561B2

公开(公告)日：2008-03-25

申请号：US11053383

申请日：2005-02-07

申请人： Clark Pentico ,  Michael Newell

发明人： Clark Pentico ,  Michael Newell

IPC分类号： G03B21/14

CPC分类号： H04N9/3105 ,  H04N9/3167

摘要： A color management system for use with projection displays includes, for example, two or more analyzers positioned to receive light beams as they are emitted from the panels of a color management system. The analyzers are positioned to receive the light beams directly from the image assimilators before the light has passed through another optical element such as a light combiner. The analyzers are configured for producing filtered light outputs with improved contrast relative to the incoming light beams. By positioning the analyzers to receive the light beams directly from the image assimilators, i.e., prior to passage through other optical elements, the analyzers are able to remove substantially all of the noise before it has become indistinguishable, on the basis of polarization, from the light that comprises the desirable image. Accordingly, this embodiment produces images having dramatically improved levels of contrast relative to prior art systems.

摘要翻译： 用于投影显示器的颜色管理系统包括例如两个或更多个分析器，其被定位成在从色彩管理系统的面板发射时接收光束。 分析器被定位成在光已经通过诸如光合并器的另一光学元件之前直接从图像同化器接收光束。 分析仪被配置为产生相对于入射光束具有改进的对比度的滤光光输出。 通过将分析仪定位成直接从图像同化器接收光束，即在通过其它光学元件之前，分析器能够在基于极化从而不能区分的噪声之前基本上除去所有的噪声 包含所需图像的光。 因此，该实施例产生相对于现有技术系统具有显着提高的对比度水平的图像。

公开(公告)号：US20060038961A1

公开(公告)日：2006-02-23

申请号：US11053383

申请日：2005-02-07

申请人： Clark Pentico ,  Michael Newell

发明人： Clark Pentico ,  Michael Newell

IPC分类号： G03B21/00

CPC分类号： H04N9/3105 ,  H04N9/3167

摘要： A color management system for use with projection displays includes, for example, two or more analyzers positioned to receive light beams as they are emitted from the panels of a color management system. The analyzers are positioned to receive the light beams directly from the image assimilators before the light has passed through another optical element such as a light combiner. The analyzers are configured for producing filtered light outputs with improved contrast relative to the incoming light beams. By positioning the analyzers to receive the light beams directly from the image assimilators, i.e., prior to passage through other optical elements, the analyzers are able to remove substantially all of the noise before it has become indistinguishable, on the basis of polarization, from the light that comprises the desirable image. Accordingly, this embodiment produces images having dramatically improved levels of contrast relative to prior art systems.

摘要翻译： 用于投影显示器的颜色管理系统包括例如两个或更多个分析器，其被定位成在从色彩管理系统的面板发射时接收光束。 分析器被定位成在光已经通过诸如光合并器的另一光学元件之前直接从图像同化器接收光束。 分析仪被配置为产生相对于入射光束具有改进的对比度的滤光光输出。 通过将分析仪定位成直接从图像同化器接收光束，即在通过其它光学元件之前，分析器能够在基于极化从而不能区分的噪声之前基本上除去所有的噪声 包含所需图像的光。 因此，该实施例产生相对于现有技术系统具有显着提高的对比度水平的图像。

公开(公告)号：US06971747B2

公开(公告)日：2005-12-06

申请号：US11022247

申请日：2004-12-23

申请人： Michael P. Newell ,  Clark Pentico

发明人： Michael P. Newell ,  Clark Pentico

IPC分类号： G03B21/00 ,  H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3117 ,  H04N9/3167

摘要： A color management system for use with projection displays includes, for example, a separating polarizing beamsplitter, a compensating prism group, an image assimilator, and a combining polarizing beam splitter. In accordance with an exemplary embodiment, the separating polarizing beamsplitter receives a bi-oriented light input and separates it into two output beams, one comprising a first component and the other comprising a second component. The image assimilator receives an output light beam from the separating polarizing beamsplitter, transmits the light output to one or more corresponding microdisplays, receives one or more modified outputs from the microdisplays, and emits an output comprising those modified outputs to a combining polarizing beamsplitter. The compensating prism group receives from the separating polarizing beamsplitter the other output light beam, transmits it to another corresponding microdisplay, receives from the microdisplay a modified light output, and transmits it to the combining polarizing beamsplitter be combined with the light output from the image assimilator. The compensating prism group may be configured to compensate for an optical aberration induced by the light separator.

公开(公告)号：US06893130B2

公开(公告)日：2005-05-17

申请号：US10431832

申请日：2003-05-08

申请人： Clark Pentico ,  Michael Newell

发明人： Clark Pentico ,  Michael Newell

IPC分类号： H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3167 ,  H04N9/3105 ,  H04N9/3141

摘要： A color management system for use with projection displays includes an image assimilator and an analyzer. The image assimilator comprises a panel that produces a light beam comprising spatial information. The image assimilator also comprises a field lens positioned to receive the light beam and configured to emit a converging light beam whose cross-sectional area decreases with distance from the field lens. In an exemplary embodiment, a plurality of image assimilators and associated analyzers are included, each having a field lens for emitting a converging light beam. The analyzers are configured for producing filtered light outputs with improved contrast relative to the converging light beams. In addition, the converging nature of the field lens emitted light beams enables the size of the analyzers and other downstream components to be minimized. Accordingly, this embodiment produces images having dramatically improved levels of contrast with reduced size relative to prior art systems.

摘要翻译： 用于投影显示器的颜色管理系统包括图像同化器和分析器。 图像同化器包括产生包括空间信息的光束的面板。 图像同化器还包括位置用于接收光束并被配置为发射会聚光束的场透镜，该会聚光束的横截面积随距离场透镜的距离而减小。 在示例性实施例中，包括多个图像同化器和相关联的分析器，每个具有用于发射会聚光束的场透镜。 分析器被配置为产生相对于会聚光束具有改善的对比度的滤光光输出。 此外，场透镜发射光束的会聚特性使分析仪和其它下游部件的尺寸最小化。 因此，与现有技术的系统相比，该实施例产生具有显着提高的对比度水平的图像，并且尺寸减小。

公开(公告)号：US07108374B2

公开(公告)日：2006-09-19

申请号：US11033695

申请日：2005-01-11

申请人： Clark Pentico ,  Michael Newell

发明人： Clark Pentico ,  Michael Newell

IPC分类号： G03B21/28

CPC分类号： H04N9/3167 ,  H04N9/3105 ,  H04N9/3141

摘要： A color management system for use with projection displays includes an image assimilator and an analyzer. The image assimilator comprises a panel that produces a light beam comprising spatial information. The image assimilator also comprises a field lens positioned to receive the light beam and configured to emit a converging light beam whose cross-sectional area decreases with distance from the field lens. In an exemplary embodiment, a plurality of image assimilators and associated analyzers are included, each having a field lens for emitting a converging light beam. The analyzers are configured for producing filtered light outputs with improved contrast relative to the converging light beams. In addition, the converging nature of the field lens emitted light beams enables the size of the analyzers and other downstream components to be minimized. Accordingly, this embodiment produces images having dramatically improved levels of contrast with reduced size relative to prior art systems.

摘要翻译： 用于投影显示器的颜色管理系统包括图像同化器和分析器。 图像同化器包括产生包括空间信息的光束的面板。 图像同化器还包括位置用于接收光束并被配置为发射会聚光束的场透镜，该会聚光束的横截面积随距离场透镜的距离而减小。 在示例性实施例中，包括多个图像同化器和相关联的分析器，每个具有用于发射会聚光束的场透镜。 分析器被配置为产生相对于会聚光束具有改善的对比度的滤光光输出。 此外，场透镜发射光束的会聚特性使分析仪和其它下游部件的尺寸最小化。 因此，与现有技术的系统相比，该实施例产生具有显着提高的对比度水平的图像，并且尺寸减小。

公开(公告)号：US06945654B2

公开(公告)日：2005-09-20

申请号：US10794251

申请日：2004-03-05

申请人： Michael Newell ,  Clark Pentico

发明人： Michael Newell ,  Clark Pentico

IPC分类号： H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3167 ,  H04N9/3117

摘要： A color management system for use with projection displays includes a beamsplitter positioned to receive a light beam, a microdisplay positioned to receive the light beam from the beamsplitter and emit a modified light beam to the beamsplitter, and a plurality of prisms positioned to receive the modified light beam from the beamsplitter and emit a light output that compensates for an optical aberration induced by the beamsplitter.

摘要翻译： 用于投影显示器的颜色管理系统包括被定位成接收光束的分束器，定位成接收来自分束器的光束并将修改的光束发射到分束器的微型显示器，以及定位成接收修改过的光束的多个棱镜 来自分光器的光束并且发射补偿由分束器引起的光学像差的光输出。

公开(公告)号：US06899432B2

公开(公告)日：2005-05-31

申请号：US10431890

申请日：2003-05-08

申请人： Clark Pentico ,  Michael Newell

发明人： Clark Pentico ,  Michael Newell

IPC分类号： H04N9/31 ,  G03B21/28

CPC分类号： H04N9/3167 ,  H04N9/3105 ,  H04N9/3141

摘要： A color management system for use with projection displays includes, for example, two or more analyzers positioned to receive light beams emitted from corresponding image assimilators, which each comprise a transmissive panel and a polarizing beamsplitter. Each analyzer is positioned to receive a light beam directly from an associated image assimilator before the light has passed through another optical element such as a light combiner. The analyzers are configured for producing filtered light outputs with improved contrast relative to the incoming light beams. These closely-coupled analyzers are able to remove substantially all of the noise before it has become indistinguishable, on the basis of polarization, from the light that comprises the desirable image. In an exemplary embodiment, an optical isolator is positioned to receive both a light output from a color management system and a reflection of the light output. The optical isolator is configured for isolating the light output from the reflection.

摘要翻译： 用于投影显示器的颜色管理系统包括例如两个或更多个分析器，其被定位成接收从对应的图像同化器发射的光束，每个包括透射面板和偏振分束器。 每个分析器被定位成在光已经通过诸如光合并器的另一光学元件之前从相关联的图像同化器直接接收光束。 分析仪被配置为产生相对于入射光束具有改进的对比度的滤光光输出。 这些紧密耦合的分析器能够在基于偏振的基础上与包含期望的图像的光成为不可区分之后能够基本上去除所有的噪声。 在示例性实施例中，光隔离器被定位成接收来自颜色管理系统的光输出和光输出的反射。 光隔离器被配置为隔离反射的光输出。