公开(公告)号：US20020008812A1

公开(公告)日：2002-01-24

申请号：US09681184

申请日：2001-02-14

发明人： Arlie R. Conner ,  Bruce L. Cannon ,  Eric Aspnes

IPC分类号： G02F001/1335

CPC分类号： G02F1/133621 ,  G02B26/0875 ,  G02B27/1013 ,  G02B27/1046 ,  G02B27/1053 ,  G02B27/1066 ,  G02B27/1086 ,  G02B27/145 ,  G02B27/148 ,  G02B27/149 ,  G02F2001/133623 ,  H04N9/3111 ,  H04N9/3188

摘要： 1266-03028 A color display system includes a color light separator that separates incident white illumination light into red, green and blue wavelength bands to be directed to distinct color component sub-pixels (sometimes called dots) that are arranged in a dot-matrix, color triad arrangement (e.g., stripe or delta) to form individual picture elements (pixels) on a pixelated electronic image device (e.g., LCD of DMD). The entire picture is optically shifted from one set of color component sub-pixels to another in a 3-field sequence. As a result, the sets of red, green and blue color component sub-pixels appear to an observer as a single full-color image, thereby providing a dot sequential color display.

摘要翻译： 彩色显示系统包括将入射的白色照明光分成红色，绿色和蓝色波长带的彩色光分离器，以指向排列成点阵的不同颜色分量子像素（有时称为点） 彩色三合一布置（例如，条纹或三角形）以在像素化电子图像装置（例如，DMD的LCD）上形成单独的图像元素（像素）。 整个图像在3场序列中从一组颜色分量子像素光移位到另一组。 结果，红色，绿色和蓝色分量子像素组作为单个全色图像呈现给观察者，从而提供点顺序彩色显示。

公开(公告)号：US06254237B1

公开(公告)日：2001-07-03

申请号：US09302911

申请日：1999-04-30

申请人： David K. Booth

发明人： David K. Booth

IPC分类号： G03B2100

CPC分类号： G02B27/149 ,  G02B3/0062 ,  G02B27/1046 ,  G02B27/1053 ,  G02B27/145 ,  G02B27/148 ,  G03B21/005 ,  H04N9/3105 ,  H04N9/315

摘要： A color liquid crystal display projector has a light source with a radiating element (e.g., arc or incandescent) and a liquid crystal display (LCD). The LCD includes an array of multiple picture elements or pixels that each have separate color component sub-pixels (e.g., red, green and blue). Multiple differently inclined dichroic mirrors angularly separate the light into light beams of different color components. An integrating lens array relay system has a pair of planar lens arrays that form multiple spatially separated images of the angularly-color separated light components. An array of microlenses is positioned adjacent to the LCD. Each microlens is in one-to-one alignment with LCD pixels along at least one dimension and images the spatially separated images upon multiple pixels in at least the one dimension.

摘要翻译： 彩色液晶显示投影仪具有具有辐射元件（例如电弧或白炽灯）和液晶显示器（LCD）的光源。 LCD包括多个图像元素或像素的阵列，每个像素具有分离的颜色分量子像素（例如，红色，绿色和蓝色）。 多个不同倾斜的分色镜将光成角度地分离成不同颜色分量的光束。 积分透镜阵列继电器系统具有形成角色分离的光分量的多个空间分离的图像的一对平面透镜阵列。 微透镜阵列位于LCD附近。 每个微透镜沿着至少一个维度与LCD像素一一对准，并且在至少一维中在多个像素上对空间分离的图像进行成像。

公开(公告)号：US06183090B2

公开(公告)日：2001-02-06

申请号：US09098455

申请日：1998-06-17

申请人： Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiromi Kato ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiromi Kato ,  Hiroshi Hamada

IPC分类号： G03B2114

CPC分类号： G02B27/149 ,  G02B27/1026 ,  G02B27/1046 ,  G02B27/145 ,  H04N9/3105 ,  H04N9/3167

摘要： A projection type image display apparatus of the present invention includes: a light source; a polarization selective reflection element having a function of reflecting or transmitting a light beam from the light source in accordance with a polarization direction thereof; and an element for modulating a polarization plane of an incident light beam in accordance with an image to be displayed. The polarization selective reflection element is film-like and has an optical transmission axis and an optical reflection axis. The polarization selective reflection element transmits a first linearly polarized light beam, and reflects a second linearly polarized light beam having a polarization plane orthogonal to a polarization plane of the first linearly polarized light beam, regardless of a direction of incidence of a light beam with respect to the polarization selective reflection element.

摘要翻译： 本发明的投影型图像显示装置包括：光源; 具有根据其偏振方向从光源反射或透射光束的功能的偏振选择反射元件; 以及用于根据要显示的图像调制入射光束的偏振面的元件。 偏光选择反射元件是膜状的，并且具有光透射轴和光反射轴。 偏振选择反射元件透射第一线性偏振光束，并且反射具有与第一线性偏振光束的偏振面正交的偏振面的第二线偏振光束，而不管光束的入射方向如何 到偏振选择反射元件。

公开(公告)号：US6067128A

公开(公告)日：2000-05-23

申请号：US616346

申请日：1996-03-15

申请人： Masao Imai

发明人： Masao Imai

IPC分类号： G03B33/12 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G09F9/00 ,  H04N9/31 ,  G02F1/00

CPC分类号： G02B27/149 ,  G02B27/1046 ,  G02B27/143 ,  G02B27/144 ,  G02B27/145 ,  G02B27/283 ,  H04N9/3105

摘要： In an LCD projector, a color mixing optical system for mixing color beams transmitted through LCD elements includes an optical path length adjuster in three light paths from a light source to the LCD elements. The adjuster includes polarization beam splitters, phase plates, and light-beam reflectors. The numbers of reflections of the color beams in the optical paths from the light source to the projection lens are set only to odd values or only to even values. The adjusters are arranged and configured to equalize the respective optical path lengths to each other. With this configuration, the relative distribution of intensity of illumination is substantially equalized for the beams illuminating the respective LCD elements. Compounding the beams, there is attained a projected screen image with a satisfactory white balance and homogeneous chromaticity and luminance. Consequently, there is implemented an LCD projector capable of projecting on a screen an image having a favorable white balance and uniform chromaticity and luminance.

摘要翻译： 在LCD投影仪中，用于混合通过LCD元件透射的彩色光束的混色光学系统包括从光源到LCD元件的三条光路中的光程长度调节器。 调节器包括偏振分束器，相位板和光束反射器。 从光源到投影透镜的光路中的彩色光束的反射次数仅设定为奇数值，或仅设定为均匀值。 调整器被布置和配置为使各个光路长度彼此均衡。 利用这种配置，对于照射各个LCD元件的光束，照明强度的相对分布基本相等。 复合光束，获得具有令人满意的白平衡和均匀色度和亮度的投影屏幕图像。 因此，实现了能够在屏幕上投射具有良好的白平衡和均匀的色度和亮度的图像的LCD投影仪。

公开(公告)号：US5973840A

公开(公告)日：1999-10-26

申请号：US91834

申请日：1998-06-29

申请人： Yoshitaka Itoh ,  Toshiaki Hashizume

发明人： Yoshitaka Itoh ,  Toshiaki Hashizume

IPC分类号： G02B3/00 ,  G02B27/14 ,  G02B27/28 ,  G03B33/12 ,  H04N5/74 ,  H04N9/31 ,  G02B27/10

CPC分类号： G02B3/0043 ,  G02B27/1046 ,  G02B27/123 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  G02B27/285 ,  G02B3/0056 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/315 ,  G02B3/0062 ,  H04N5/74 ,  H04N5/7441

摘要： An apparatus which makes dark lines due to a central axis of a cross dichroic prism sufficiently inconspicuous. In a second lens array, minute lenses arranged on the same column include three different types of minute lenses having optical axes at different positions. Each row of the minute lenses consists of one of the three types of minute lenses. Partial light fluxes respectively passing through the minute lenses have optical axes at different positions relative to a center of a lighting area of a liquid-crystal light bulb, so as to illuminate different illumination areas.

摘要翻译： PCT No.PCT / JP97 / 03901 Sec。 371日期1998年6月29日第 102（e）日期1998年6月29日PCT 1997年10月27日PCT公布。 公开号WO98 / 19212 PCT 日期1998年7月5日由于交叉二向色棱镜的中心轴足够不明显而使暗线产生的设备。 在第二透镜阵列中，布置在同一列上的微透镜包括在不同位置具有光轴的三种不同类型的微透镜。 每一行分钟镜都由三种类型的微型镜头组成。 分别通过微透镜的部分光束相对于液晶灯泡的照明区域的中心具有不同位置的光轴，以照亮不同的照明区域。

公开(公告)号：US5897191A

公开(公告)日：1999-04-27

申请号：US914053

申请日：1997-07-15

申请人： John A. Clarke

发明人： John A. Clarke

IPC分类号： G02F1/13 ,  G02B5/30 ,  G02B27/14 ,  G02B27/28 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC分类号： G02B27/1046 ,  G02B27/145 ,  G02B5/3083 ,  H04N9/3105 ,  H04N5/7441

摘要： A color image projection apparatus comprising a plurality of (LC) image display panels (33), each operating with light of a different color (R,G,B), whose outputs are combined by combining means (24, 25) and projected via a lens (28) onto a screen (32) and electro-optical deflection means, comprising a birefringent element (40) following the combining means and preceded by polarization switch means (42) operable to displace slightly the outputs from rows of pixels in each of the panels in either the odd or even fields so as to produce an interlaced image on the screen. Considerably improved performance is achieved by providing a respective, separate, polarization switch element between each display panel (33) and the combining means (24, 25), and preferably closely adjacent to the output side of the display panel.

摘要翻译： 一种彩色图像投影设备，包括多个（LC）图像显示面板（33），每个（LC）图像显示面板（33）以不同颜色的光（R，G，B）操作，其输出通过组合装置（24,25） 在屏幕（32）上的透镜（28）和电光偏转装置，包括在组合装置之后的双折射元件（40），之前是偏振开关装置（42），可操作以稍微移位每个像素中的像素的输出 在奇数或偶数场中的面板，以便在屏幕上产生隔行扫描图像。 通过在每个显示面板（33）和组合装置（24,25）之间提供相应的分离的偏振开关元件，并且优选地紧邻显示面板的输出侧来实现明显改善的性能。

公开(公告)号：US5825552A

公开(公告)日：1998-10-20

申请号：US885307

申请日：1997-06-30

申请人： Andrew F. Kurtz ,  John R. Debesis ,  Sanwal P. Sarraf

发明人： Andrew F. Kurtz ,  John R. Debesis ,  Sanwal P. Sarraf

IPC分类号： G02B27/14

CPC分类号： B41J2/465 ,  G02B27/1046 ,  G02B27/12 ,  G02B27/143 ,  G02B27/144 ,  G02B27/148

摘要： A beamsplitter/staggerer (24) for multi-beam laser printers is disclosed. The multi-beam laser printer is comprised of the beamsplitter/staggerer (24), a spatial light modulator (16) having at least two rows of staggered modulator pixel elements (19), and an illumination system comprised of a laser array (10) and an optical system (13) which provides a narrow line of laser light. The beamsplitter/staggerer is adapted to split the narrow line of laser light into at least two parallel lines of light, and to split each of the parallel lines of light into regions, such that substantially all of the light from the illumination system falls onto each of the modulator pixel elements (19) in each of the rows. In one embodiment, the beamsplitter/staggerer comprises a pattern of reflecting areas (26) and transmitting areas (27) wherein a shape of the regions defined by the beamsplitter/staggerer matches a shape of the modulator pixel elements (19).

摘要翻译： 公开了一种用于多光束激光打印机的分束器/分配器（24）。 多光束激光打印机由分束器/变焦器（24），具有至少两行交错调制器像素元件（19）的空间光调制器（16）和由激光阵列（10）构成的照明系统组成， 以及提供窄线激光的光学系统（13）。 分束器/分配器适于将窄线激光分成至少两条平行光线，并将每条平行光线分成多个区域，使得基本上所有来自照明系统的光都落在每个 的每行中的调制器像素元件（19）。 在一个实施例中，分束器/分配器包括反射区域（26）和透射区域（27）的图案，其中由分束器/错开器限定的区域的形状与调制器像素元件（19）的形状相匹配。

公开(公告)号：US5749641A

公开(公告)日：1998-05-12

申请号：US782652

申请日：1997-01-14

申请人： Steve Brice ,  Gary Kingsley ,  David Payne

发明人： Steve Brice ,  Gary Kingsley ,  David Payne

IPC分类号： G03B33/12 ,  G02B27/18 ,  G03B21/00 ,  H04N5/74 ,  H04N9/31 ,  H04N17/00 ,  G03B21/14

CPC分类号： H04N9/3105 ,  G02B27/1046 ,  G02B27/149 ,  G02B27/283

摘要： An optical projector is described that orients its optics engine preferably vertically within an enclosure that is higher than it is wide or deep. The invented optics engine uses a prismatic cube for color separation or beam splitting, with the prismatic elements within the cube being secured within a durable frame that mounts the three color light valves, e.g. twisted nematic liquid crystal display (LCD)-type shutters, in a predefined position and orientation relative to the prismatic cube. In order to improve image quality and brightness, especially of the notoriously difficult-to-reproduce green color, red and blue beams are S polarized, as is conventional, but the green beam is P-polarized. The invented optical projector preferably includes a frame having a footing portion for resting on a support surface, a light source high above the footing portion, optical convolution structure downstream from the light source for reverse-bending downwardly flowing light from the source, light modulation structure near the reverse bend region for infusing the light with image information and for directing modulated light upwardly in a projectable, image-containing stream of light and outward-projection directing structure high on the frame for receiving and outwardly directing such stream of light.

摘要翻译： 描述了一种光学投影仪，其优选地在其高于其宽或深的外壳内垂直定向其光学引擎。 本发明的光学引擎使用棱镜立方体进行颜色分离或分束，立方体内的棱镜元件被固定在耐用框架内，该框架安装三色光阀，例如， 扭转向列液晶显示器（LCD）型百叶窗，相对于棱柱形立方体预定的位置和取向。 为了提高图像质量和亮度，特别是臭名昭着的难以再现的绿色，红色和蓝色光束是常规的S偏振，但是绿色光束是P偏振光。 本发明的光学投影仪优选地包括具有用于搁置在支撑表面上的基脚部分的框架，高于基脚部分的光源，在光源下游的光学卷积结构，用于逆向向下弯曲来自源的光的光线调制结构 靠近反向弯曲区域，用于将光输入图像信息，并将调制光向上引导到可投影的含图像的光流和向外投影指向结构的高度上，用于接收和向外引导这种光流。

公开(公告)号：US5743610A

公开(公告)日：1998-04-28

申请号：US697707

申请日：1996-08-27

申请人： Akitaka Yajima ,  Motoyuki Fujimori ,  Mutsuya Furuhata ,  Tomiyoshi Ushiyama ,  Terunaga Koide ,  Toshiaki Hashizume ,  Kiyoshi Miyashita ,  Hiroshi Harima ,  Keijiro Naito

发明人： Akitaka Yajima ,  Motoyuki Fujimori ,  Mutsuya Furuhata ,  Tomiyoshi Ushiyama ,  Terunaga Koide ,  Toshiaki Hashizume ,  Kiyoshi Miyashita ,  Hiroshi Harima ,  Keijiro Naito

IPC分类号： G02B27/14 ,  G03B21/14 ,  H04N5/74 ,  H04N9/31

CPC分类号： G03B33/12 ,  G02B27/1046 ,  G02B27/1073 ,  G02B27/145 ,  G02B27/149 ,  H04N9/3105 ,  H04N9/312 ,  H04N9/3141 ,  H04N9/3144 ,  H04N9/317 ,  H04N9/3182

摘要： A projection display comprising: a square column dichroic prism composed of four triangle prisms having equal refractive index together whose cross sections are right isosceles triangles such that three light valves are located adjacent to three exterior peripheral surfaces of dichroic prism to receive colored and modulated light beams therefrom and; a filter for absorbing light with a specified wavelength range, leaked from surface of dichroic prism at the opposite side of incident light surface and directed to liquid crystal light valve, the filter being located between liquid crystal light valves and surface of dichroic prism. As for construction of the dichroic prism itself, specifically, of the four aforementioned triangular prisms, the first triangular prism and the aforementioned third triangular prism are mutually affixed in a condition in which there is a first step difference in the vertical direction. The first exposed side is formed on one edge of the affixed side of the first triangular prism. Similarly, the second triangular prism and the fourth triangular prism are attached to each other such that there is a second step difference on the same edge, and a second exposed side is formed on one edge of the affixed surface of the second triangular prism. Further, the first and the third triangular prisms and the second and the fourth triangular prisms are attached, with a step difference between them, in such a way that the aforementioned first exposed side and the aforementioned second exposed side are located on the edges facing the same direction; and a third exposed surface that is orthogonal to the aforementioned first and second exposed surfaces is formed between the aforementioned first triangular prism and the aforementioned second triangular prism.

摘要翻译： 一种投影显示器，包括：方柱列分色棱镜，其由具有相等折射率的四个三角棱镜组成，其横截面为右等腰三角形，使得三个光阀位于与分色棱镜的三个外周表面相邻以接收有色调制光束 和 用于吸收具有特定波长范围的光的滤光器，从入射光面的相对侧的二向色棱镜的表面泄漏并且指向液晶光阀，该滤光器位于液晶光阀和二向色棱镜表面之间。 关于二向色棱镜本身的结构，具体地，在上述四个上述三角棱镜中，第一三角形棱镜和上述第三三棱镜在垂直方向上具有第一阶差的状态下相互固定。 第一暴露侧形成在第一三角形棱镜的固定侧的一个边缘上。 类似地，第二三角棱镜和第四三角棱镜彼此附接，使得在同一边缘上存在第二阶梯差，并且第二暴露侧形成在第二三角棱镜的固定表面的一个边缘上。 此外，第一和第三三角形棱镜和第二和第四三角棱镜以它们之间的台阶差附接，使得上述第一暴露侧和上述第二暴露侧位于面向 同方向 并且在上述第一三角棱镜和上述第二三棱镜之间形成有与上述第一和第二暴露表面正交的第三暴露表面。

公开(公告)号：US5546200A

公开(公告)日：1996-08-13

申请号：US63741

申请日：1993-05-20

申请人： Christophe Nicolas ,  Brigitte Loiseaux ,  Cecile Joubert ,  Jean-Pierre Huignard

发明人： Christophe Nicolas ,  Brigitte Loiseaux ,  Cecile Joubert ,  Jean-Pierre Huignard

IPC分类号： G02B5/32 ,  G02B27/14 ,  G02F1/13 ,  H04N9/31 ,  G03H1/10

CPC分类号： G02B27/1046 ,  G02B27/145 ,  G02B27/149 ,  G02B5/32 ,  H04N9/3105

摘要： This invention concerns chromatic light separators, and is particularly intended to reduce their dimensions. A chromatic separator in accordance with the invention contains at least two selective wave length mirrors. According to one characteristic of the invention, the two selective mirrors are nested holographic mirrors. The invention is particularly suitable for three-color rear-projection type picture projectors using liquid crystal screens.

摘要翻译： 本发明涉及彩色光分离器，特别旨在减小它们的尺寸。 根据本发明的色分离器包含至少两个选择波长镜。 根据本发明的一个特征，两个选择镜是嵌套全息镜。 本发明特别适用于使用液晶屏幕的三色背投型图像投影机。