公开(公告)号：WO2007081343A1

公开(公告)日：2007-07-19

申请号：PCT/US2006/001264

申请日：2006-01-13

Applicant: SILICON OPTIX INC. ,  RAMACHANDRAN, Gopal ,  PRIOR, Gregory, A.

Inventor： RAMACHANDRAN, Gopal ,  PRIOR, Gregory, A.

IPC: G03B21/56 ,  G03B21/60 ,  G03B21/14 ,  G03B21/22 ,  G03B21/00 ,  G03B21/26 ,  G03B21/28

CPC classification number: G03B21/28 ,  G02B13/16 ,  G02B17/006 ,  G02B17/0816 ,  G03B21/10 ,  G03B21/16 ,  G03B21/602 ,  H04N9/3141

Abstract: A rear projection display system and associated optical system are described with a reduced field angle. The rear projection display system includes a screen (20) and a housing. The optical system includes a light engine (102), a first mirror (104), a second mirror (106) and a Fresnel lens (108) arranged to achieve a thin housing. The light engine (102) is generally disposed in an upper region o the housing, and projects light onto the first mirror (104), which can be located at a bottom portion of the housing. The first mirror (104) reflects the projected light onto the second mirror (106), which in turns reflects the light towards the Fresnel lens (108), whic transfers the light onto the screen (20). A total internal reflection Fresnel lens (108) is used to reduce cost and complexity without sacrificing image quality and housing thinness.

Abstract translation: 背景显示系统和相关联的光学系统被描述为具有减小的场角。 背投显示系统包括屏幕（20）和外壳。 光学系统包括光引擎（102），第一反射镜（104），第二反射镜（106）和布置成实现薄壳体的菲涅尔透镜（108）。 光引擎（102）通常设置在壳体的上部区域中，并将光投射到可位于壳体的底部的第一反射镜（104）上。 第一反射镜（104）将投射的光反射到第二反射镜（106）上，第二反射镜106又将光反射到菲涅尔透镜（108），将光传输到屏幕（20）上。 全内反射菲涅尔透镜（108）用于降低成本和复杂性，而不牺牲图像质量和外壳薄度。

公开(公告)号：WO2004064370A3

公开(公告)日：2004-07-29

申请号：PCT/US2004/000185

申请日：2004-01-07

Applicant: SILICON OPTIX INC. ,  RAMACHANDRAN, Gopal ,  PRIOR, Gregory, A.

Inventor： RAMACHANDRAN, Gopal ,  PRIOR, Gregory, A.

IPC: G03B21/00

Abstract: An image projection system (10) and method is presented for optically projecting an image onto a display surface (20) with visually correct geometry and optimum image quality. The projection system (10) includes an image processing unit (12) for receiving the input image data and generating distortion-compensated image data to compensate for ensuing spatial distortions in the projection system, a projection light engine (14) for receiving the distortion-compensated image data and projecting a distortion-compensated optical image that corresponds to the distortion-compensated image data; and, an optical reflection assembly (16) comprising at least one curved mirror (39) positioned in the optical path of the distortion-compensated optical image emerging from the projection light engine for producing a displayed optical image with reduced distortion on the display surface (20).

公开(公告)号：WO2004064370A2

公开(公告)日：2004-07-29

申请号：PCT/US2004000185

申请日：2004-01-07

Applicant: SILICON OPTIX INC ,  RAMACHANDRAN GOPAL ,  PRIOR GREGORY A

Inventor： RAMACHANDRAN GOPAL ,  PRIOR GREGORY A

IPC: G02B5/10 ,  G02B13/18 ,  G02B17/00 ,  G02B17/06 ,  G02B26/08 ,  G03B21/00 ,  G03B21/10 ,  G03B21/14 ,  G03B21/28 ,  G03B21/56 ,  G03B21/60 ,  H04N20060101 ,  H04N1/00 ,  H04N5/57 ,  H04N5/74 ,  H04N17/00 ,  H04N

CPC classification number: H04N9/3185 ,  G02B17/06 ,  G02B17/0621 ,  G03B21/10 ,  G03B21/28 ,  H04N5/57 ,  H04N5/7408 ,  H04N2005/745 ,  H04N2005/7466

Abstract: An image projection system and method is presented for optically projecting an image onto a display surface with visually correct geometry and optimum image quality. The projection system includes an image processing unit for receiving the input image data and generating distortion-compensated image data to compensate for ensuing spatial distortions in the projection system, a projection light engine for receiving the distortion-compensated image data and projecting a distortion-compensated optical image that corresponds to the distortion-compensated image data; and, an optical reflection assembly comprising at least one curved mirror positioned in the optical path of the distortion-compensated optical image emerging from the projection light engine for producing a displayed optical image with reduced distortion on the display surface. The image processing unit distortion-compensates the input image data such that the optical and spatial distortions associated with the projection light engine and optical reflection assembly are substantially reduced in the displayed optical image.

Abstract translation: 提出了一种图像投影系统和方法，用于将图像以视觉上正确的几何形状和最佳图像质量光学投影到显示表面上。 投影系统包括图像处理单元，用于接收输入图像数据并产生失真补偿图像数据以补偿投影系统中的随后的空间失真;投影光引擎，用于接收失真补偿图像数据并投影失真补偿 对应于失真补偿图像数据的光学图像; 以及光反射组件，其包括位于从投影光引擎出现的失真补偿光学图像的光路中的至少一个弯曲镜，用于在显示表面上产生具有减小的失真的显示光学图像。 图像处理单元失真补偿输入图像数据，使得与所投影光引擎和光学反射组件相关联的光学和空间失真在显示的光学图像中显着减小。