Dual polarization optical projection systems and methods

    公开(公告)号:US06231189B1

    公开(公告)日:2001-05-15

    申请号:US08618442

    申请日:1996-03-19

    IPC分类号: G03B2114

    CPC分类号: G09F19/18

    摘要: A dual polarization optical projection system and method combines images from first and second image sources. The first image source includes a first array of image pixels wherein the first image source generates a first pixel image having a first polarization. The second image source includes a second array of image pixels wherein the second image source generates a second pixel image having a second polarization orthogonal to the first polarization. The first pixel image having the first polarization is combined with the second pixel image having the second polarization to form a combined pixel image. Each pixel of the combined pixel image corresponds to a combination of a first pixel from the first array of image pixels having the first polarization and a second pixel from the second array of image pixels having the second polarization.

    Methods and systems for projecting images at greater than 180 degrees
    3.
    发明授权
    Methods and systems for projecting images at greater than 180 degrees 失效
    用于投影图像大于180度的方法和系统

    公开(公告)号:US06880939B2

    公开(公告)日:2005-04-19

    申请号:US10109385

    申请日:2002-03-28

    CPC分类号: G02B27/18

    摘要: An optical projection system includes an image source that is configured to generate an array of image pixels. A lens assembly is configured to project the array of image pixels onto a hemispherical surface at a projection angle greater than 180°. The lens assembly may include a wide-angle lens assembly and an image relay lens assembly that is configured to reduce dispersion in the array of image pixels between the image source and the wide-angle lens assembly. The wide-angle lens assembly may include a meniscus lens assembly and a wavefront shaping lens assembly. The lens assembly may be further configured to project the array of image pixels onto the hemispherical surface such that there is a constant angular separation between adjacent image pixels. An optical projection system may also include two image sources that are configured to generate first and second arrays of image pixels and two lens assemblies that are configured to respectively project the first and second arrays of image pixels at projection angles that are greater than 180° onto a surface in opposite directions of each other. The combination of the first and second arrays of image pixels may cover a continuous, 360° portion of the hemispherical surface.

    摘要翻译: 光学投影系统包括被配置为生成图像像素阵列的图像源。 透镜组件被配置为以大于180°的投影角度将图像像素阵列投影到半球形表面上。 透镜组件可以包括广角镜头组件和图像中继透镜组件,其被配置为减少图像源和广角镜头组件之间的图像像素阵列中的色散。 广角镜头组件可以包括弯月透镜组件和波前成形透镜组件。 透镜组件可以进一步配置成将图像像素阵列投影到半球形表面上,使得在相邻图像像素之间存在恒定的角度间隔。 光学投影系统还可以包括被配置为产生图像像素的第一和第二阵列的两个图像源和被配置为分别以大于180°的投影角投影第一和第二图像像阵列的两个透镜组件到 彼此相反方向的表面。 第一和第二图像像素阵列的组合可以覆盖半球形表面的连续的360°部分。

    Optical projection system and method of use
    5.
    发明授权
    Optical projection system and method of use 有权
    光学投影系统及其使用方法

    公开(公告)号:US07621647B1

    公开(公告)日:2009-11-24

    申请号:US11474015

    申请日:2006-06-23

    摘要: Embodiments include a light engine to generate pixels and a number of lenses positioned to receive pixels from the light engine and to project the pixels on to a field with a higher angular pixel density at an edge of the field than at a center of the field. A method according to embodiments includes generating pixels in a light engine, receiving the pixels from the light engine in a plurality of lenses, and projecting the pixels through the plurality of lenses on to a field with a higher angular pixel density at an edge of the field than at a center of the field.

    摘要翻译: 实施例包括产生像素的光引擎和定位成从光引擎接收像素的多个透镜,并且将像素投影到具有比场的中心处更高的角像素密度的场。 根据实施例的方法包括在光引擎中生成像素,在多个透镜中从光引擎接收像素,并且将像素通过多个透镜投影到具有较高角度像素密度的场, 场比在场的中心。

    Optical projection system including projection dome
    6.
    发明授权
    Optical projection system including projection dome 失效
    光学投影系统包括投影圆顶

    公开(公告)号:US06712477B2

    公开(公告)日:2004-03-30

    申请号:US10382005

    申请日:2003-03-05

    IPC分类号: G03B2100

    CPC分类号: G09B9/32 Y10S348/905

    摘要: A visual workstation for use by a viewer includes a dome having an open front end and a truncated spherical inner dome surface. A work surface is disposed in front of and adjacent the dome front end. The work surface defines a viewer area on a side of the work surface opposite the dome. The viewer area is sized and configured to receive the viewer and is positioned relative to the spherical inner dome surface such that the viewer, when located in the viewer area, may view the spherical inner dome surface. A projector is disposed between the viewer area and the dome. The projector is operative to project a truncated spherical projection onto the inner dome surface.

    摘要翻译: 由观看者使用的视觉工作站包括具有敞开的前端和截顶的球形内圆顶表面的圆顶。 工作表面设置在圆顶前端的前面并邻近圆顶前端。 工作表面在工作表面的与圆顶相对的一侧上界定观察者区域。 观看者区域的大小和构造用于接收观看者并且相对于球形内圆顶表面定位,使得观看者在位于观看者区域时可以观看球形内圆顶表面。 投影仪设置在观看者区域和穹顶之间。 投影仪可操作地将截顶的球形投影物投射到内圆顶表面上。

    Tiltable hemispherical optical projection systems and methods having
constant angular separation of projected pixels
    8.
    发明授权
    Tiltable hemispherical optical projection systems and methods having constant angular separation of projected pixels 失效
    可倾斜的半球形光学投影系统和方法具有投射像素的恒定角度分离

    公开(公告)号:US5762413A

    公开(公告)日:1998-06-09

    申请号:US593699

    申请日:1996-01-29

    IPC分类号: G09F19/18 G03B21/14

    CPC分类号: G09F19/18

    摘要: An array of image pixels is projected into a hemispherical projection having constant angular separation among adjacent image pixels, so that the array of image pixels may be projected onto hemispherical surfaces of varying radii without requiring spatial distortion correction of the array of image pixels. The array of pixels is preferably projected radially from the center of a dome onto a spherical inner surface of the dome. The hemispherical projection may be tilted so that the array of pixels is projected onto one of a plurality of selectable positions on the inner dome surface. The projection system preferably includes at least three collimating lenses having a common ratio of index of refraction to dispersion. The projection system projects an array of image pixels from the image source into a hemispherical surface at a projection angle of at least 160 degrees, notwithstanding that the lenses are separated from the image by a separation distance which is at least six times the image size. Accordingly, hemispherical optical projection systems and methods are provided which can work with domes of many sizes and varying audience configurations, and which do not require spatial correction or color correction of the hemispherical image to be projected.

    摘要翻译: 图像像素阵列被投影到相邻图像像素之间具有恒定角度分离的半球形投影中,使得图像像素阵列可以投影到变化半径的半球表面上,而不需要图像像素阵列的空间失真校正。 像素阵列优选地从圆顶的中心径向地突出到圆顶的球形内表面上。 半球形突起可以被倾斜,使得像素阵列投影到内圆顶表面上的多个可选位置中的一个上。 投影系统优选地包括至少三个准直透镜,其具有折射率与色散的相同比率。 投影系统将图像像素的阵列从图像源投影到至少160度的投影角度的半球形表面,尽管透镜与图像分离的距离至少为图像尺寸的六倍。 因此,提供了半球形光学投影系统和方法,其可以与许多尺寸的圆顶和不同的观众配置一起工作,并且不需要投影半球形图像的空间校正或颜色校正。

    Dual pressure inflatable structure and method
    9.
    发明授权
    Dual pressure inflatable structure and method 有权
    双重充气结构和方法

    公开(公告)号:US08578657B2

    公开(公告)日:2013-11-12

    申请号:US11997297

    申请日:2006-07-28

    IPC分类号: E04G11/04 E04H15/20

    摘要: Embodiments include an inflatable support structure enclosing a region fillable by a fluid at a positive pressure above an atmospheric pressure. A flexible screen is attached to the support structure, a region between the flexible screen and the support structure fillable by a fluid at a negative pressure below the atmospheric pressure that holds the flexible screen in a shape suitable for image projection. A method according to embodiments includes inflating an inflatable support structure with a fluid at a positive pressure above an atmospheric pressure and removing fluid from a region between the support structure and a flexible screen attached to the support structure to hold the flexible screen in a shape suitable for image projection with the fluid at the negative pressure below the atmospheric pressure between the flexible screen and the support structure.

    摘要翻译: 实施例包括一个可膨胀的支撑结构,其包围可在高于大气压力的正压力下由流体填充的区域。 柔性屏幕附接到支撑结构,柔性屏幕和支撑结构之间的区域可由在低于大气压力的负压力下的流体填充,该压力将柔性屏幕保持适于图像投影的形状。 根据实施例的方法包括用处于大气压以上的正压力的流体膨胀可膨胀的支撑结构,并且从支撑结构和附接到支撑结构的柔性屏蔽之间的区域移除流体,以将柔性屏幕保持在适合的形状 用于在柔性屏幕和支撑结构之间的负压下低于大气压的流体的图像投影。

    Optical projection system and method of use
    10.
    发明授权
    Optical projection system and method of use 有权
    光学投影系统及其使用方法

    公开(公告)号:US07959307B1

    公开(公告)日:2011-06-14

    申请号:US12624299

    申请日:2009-11-23

    摘要: Embodiments include a light engine to generate pixels and a number of lenses positioned to receive pixels from the light engine and to project the pixels on to a field with a higher angular pixel density at an edge of the field than at a center of the field. A method according to embodiments includes generating pixels in a light engine, receiving the pixels from the light engine in a plurality of lenses, and projecting the pixels through the plurality of lenses on to a field with a higher angular pixel density at an edge of the field than at a center of the field.

    摘要翻译: 实施例包括产生像素的光引擎和定位成从光引擎接收像素的多个透镜,并且将像素投影到具有比场的中心处更高的角像素密度的场。 根据实施例的方法包括在光引擎中生成像素,在多个透镜中从光引擎接收像素,并且将像素通过多个透镜投影到具有较高角度像素密度的场, 场比在场的中心。