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    • 1. 发明授权
    • Method and apparatus for printing high resolution images using multiple reflective spatial light modulators
    • 使用多个反射空间光调制器打印高分辨率图像的方法和装置
    • US06930797B2
    • 2005-08-16
    • US09794669
    • 2001-02-27
    • Sujatha RamanujanDavid KesslerJames E. Roddy
    • Sujatha RamanujanDavid KesslerJames E. Roddy
    • G02F1/13B41J2/465G06K1/00
    • B41J2/465
    • An apparatus and method of printing images (10) onto a photosensitive media (140) using multiple reflective spatial light modulators. In the apparatus and method, illumination optics (25) uniformize and image light from at least one light source through polarization beamsplitting elements (80). The polarization beamsplitting elements (80) divide the illumination light into two polarization states. One polarization state of the illumination light illuminates the reflective spatial light modulators in a telecentric manner. The reflective spatial light modulators are addressed with image data signals. The reflective spatial light modulators modulate the polarized illumination light on a site by site basis and reflect the modulated light back through the polarized beamsplitting elements (80). The modulated light beams are combined to form an image, which is directed through a print lens (110) to expose a photosensitive media (140). The position of the spatial light modulators can be changed, and a new image can be printed.
    • 使用多个反射空间光调制器将图像(10)打印到光敏介质(140)上的装置和方法。 在该装置和方法中,照明光学器件(25)使来自至少一个光源的光通过偏振分束元件(80)均匀化并成像。 偏振分束元件(80)将照明光分成两个极化状态。 照明光的一个偏振状态以远心方式照射反射空间光调制器。 反射空间光调制器用图像数据信号寻址。 反射空间光调制器逐站调制偏振照明光,并将经调制的光反射回偏振分光元件(80)。 经调制的光束被组合以形成图像,其被引导通过打印透镜(110)以暴露光敏介质(140)。 可以改变空间光调制器的位置,并且可以打印新的图像。
    • 2. 发明授权
    • Method and apparatus for printing high resolution images using multiple reflective spatial light modulators
    • 使用多个反射空间光调制器打印高分辨率图像的方法和装置
    • US06980321B2
    • 2005-12-27
    • US09933385
    • 2001-08-20
    • Sujatha RamanujanDavid KesslerJames E. Roddy
    • Sujatha RamanujanDavid KesslerJames E. Roddy
    • B41J2/445G02B27/28G02F1/13G09G3/36H04N5/74G06K1/00
    • B41J2/445G02B27/283H04N5/7441
    • An apparatus and method of printing images onto a photosensitive media (140) using multiple reflective spatial light modulators (87, 88, 89, 90, 95, 97). In the apparatus and method, illumination optics uniformize and image light from at least one light source (20) through polarization beamsplitting elements (60, 63). The polarization beamsplitting elements (60, 63) divide the illumination light into two polarization states. One polarization state of the illumination light illuminates the reflective spatial light modulators (87, 88, 89, 90, 95, 97) in a telecentric manner. The reflective spatial light modulators (87, 88, 89, 90, 95, 97) are addressed with image data signals. The reflective spatial light modulators (87, 88, 89, 90, 95, 97) modulate the polarized illumination light on a site by site basis and reflect the modulated light back through the polarization beamsplitting elements. The modulated light beams are combined to form an image, which is directed through a print lens assembly (110) to expose a photosensitive media (140). The position of the spatial light modulators (87, 88, 89, 90, 95, 97) can be changed, and a new image can be printed.
    • 使用多个反射空间光调制器(87,88,89,90,95,97)将图像打印到感光介质(140)上的装置和方法。 在该装置和方法中,照明光学器件使来自至少一个光源(20)的光通过偏振分束元件(60,63)均匀化并成像。 偏振分束元件(60,63)将照明光分成两个偏振态。 照明光的一个偏振状态以远心方式照射反射空间光调制器(87,88,89,90,95,97)。 用图像数据信号寻址反射空间光调制器(87,88,89,90,95,97)。 反射空间光调制器(87,88,89,90,95,97)逐站调制偏振照明光,并将经调制的光反射回偏振分束元件。 调制的光束被组合以形成图像,其被引导通过打印透镜组件(110)以暴露光敏介质(140)。 可以改变空间光调制器(87,88,89,90,95,97)的位置,并且可以打印新的图像。
    • 3. 发明授权
    • Autostereoscopic optical apparatus
    • 自动立体光学仪器
    • US06834961B1
    • 2004-12-28
    • US10662208
    • 2003-09-12
    • Joshua M. CobbDavid KesslerJames E. Roddy
    • Joshua M. CobbDavid KesslerJames E. Roddy
    • G03B2100
    • G02B17/08G02B27/225H04N13/302
    • An autostereoscopic optical apparatus (10) provides a stereoscopic virtual image to be viewed by an observer at a left viewing pupil (14l) and a right viewing pupil (14r). Apparatus (10) has left and right image generation systems (100l) for forming left and right curved images, each image generation system having a curved mirror (92), a beamsplitter (102) disposed between the vertex of the curved mirror (92) and the mirror's center of curvature, and an image source (94) for providing image-bearing light to the curved mirror (92). The curved mirror (92) cooperates with the beamsplitter to form an intermediate image of the image source (94). A field lens (112) is disposed near the intermediate image for imaging the mirror center of curvature toward the image center of curvature. A ball lens segment (130) is centered at the image center of curvature for forming the curved image from the intermediate image. A ball lens imaging spherical mirror (24) cooperates with a beamsplitter (16) to form images of left and right ball lens segments (130l, 30r) at left and right viewing pupils (14l, 14r).
    • 自动立体光学装置(10)提供立体虚拟图像,以便在左视野瞳孔(14l)和右视瞳孔(14r)上由观察者观看。 装置(10)具有用于形成左右弯曲图像的左右图像生成系统(100l),每个图像生成系统具有曲面镜(92),设置在曲面镜(92)的顶点之间的分束器(102) 和反射镜的曲率中心,以及用于将图像承载光提供给曲面镜(92)的图像源(94)。 曲面镜(92)与分束器配合以形成图像源(94)的中间图像。 在中间图像附近设置场透镜(112),用于将镜像中心向图像中心成像。 球形透镜段(130)以图像中心为中心,用于从中间图像形成弯曲图像。 球透镜成像球面镜(24)与分束器(16)配合,以在左和右观察瞳孔(14l,14r)处形成左右球透镜片段(130l,30r)的图像。
    • 5. 发明授权
    • Two level image writer
    • 两级图像作者
    • US06980280B2
    • 2005-12-27
    • US09976171
    • 2001-10-12
    • James E. RoddyRobert J. ZollaRichard L. Druzynski
    • James E. RoddyRobert J. ZollaRichard L. Druzynski
    • B41J2/445B41J2/465G02B5/04G02B27/18G02B27/28G02F1/13G02F1/1335G02F1/13357G03B27/32G03B21/00G03B21/26G03B27/44G03B27/54
    • G03B27/32B41J2/465
    • A two level image writer (10) forms an image from digital data onto a photosensitive medium. A first level illumination system has a first source (20) for emitting a first polarized light beam having a first color; a second source (22) for emitting a second polarized light beam having a second color; and a third source (26) for emitting a third polarized light beam having a third color. A fold mirrors directs each beam to a second level. Three polarizing beamsplitters (73, 75, 77) on the second level receive the polarized beams from the fold mirrors and isolate polarization states of each of the first, second, and third polarized light beam. Three spatial light modulators (90, 95, 97) on the second level modulate the first, second, and third polarized light beam from the polarizing beamsplitter prisms to form an array of image pixels according to said digital data. A diechroic combiner (86) combines the three modulated light beams.
    • 二级图像写入器(10)从数字数据形成图像到感光介质上。 第一级照明系统具有用于发射具有第一颜色的第一偏振光束的第一光源(20) 用于发射具有第二颜色的第二偏振光束的第二源极(22) 以及用于发射具有第三颜色的第三偏振光束的第三源极(26)。 折叠镜将每个光束引导到第二级。 第二级上的三个偏振分束器(73,75,77)从折叠镜接收偏振光束并且隔离第一,第二和第三偏振光束中的每一个的偏振状态。 第二级上的三个空间光调制器(90,95,97)根据所述数字数据调制来自偏振分光棱镜的第一,第二和第三偏振光束以形成图像像素阵列。 组合器(86)组合了三个调制的光束。
    • 7. 发明授权
    • Speckle suppressed laser projection system using a multi-wavelength doppler shifted beam
    • 斑点抑制激光投影系统使用多波长多普勒偏移光束
    • US06445487B1
    • 2002-09-03
    • US09788978
    • 2001-02-20
    • James E. RoddyWilliam R. Markis
    • James E. RoddyWilliam R. Markis
    • G02F123
    • H04N5/74G02F1/116H01S5/06213H01S5/0652H04N5/7416H04N9/3129
    • A system and method for reducing or eliminating the speckle intensity distribution of a laser imaging system. In one embodiment of the invention, a radio frequency signal is injected into a semiconductor laser light source (12) for a projection system (10) to create different speckle patterns that blend together on a projection surface (19). In another embodiment of the invention, optical feedback is used to induce a laser light source for a projection system (10) to create different speckle patterns that blend together on a projection surface (19). In another embodiment of the invention, the laser light source wavelength is Doppler shifted to produce different speckle patterns. In another embodiment of the invention, a means of deflection is used to directionally move the beam to reduce noticeable speckle. Since the eye is very sensitive to horizontal and vertical edges, but less sensitive to angles in between, beam movement of approximately 45 degrees may minimize the loss of MTF in the horizontal and vertical directions.
    • 一种用于减少或消除激光成像系统的斑点强度分布的系统和方法。 在本发明的一个实施例中,将射频信号注入用于投影系统(10)的半导体激光光源(12)中,以在投影表面(19)上产生混合在一起的不同散斑图案。 在本发明的另一个实施例中,光学反馈用于诱导用于投影系统(10)的激光光源,以在投影表面(19)上产生混合在一起的不同散斑图案。 在本发明的另一实施例中,激光光源波长被多普勒偏移以产生不同的散斑图案。 在本发明的另一个实施例中,偏转装置用于定向地移动光束以减少明显的斑点。 由于眼睛对水平和垂直边缘非常敏感,但对角度之间的角度较不敏感,大约45度的光束移动可以使水平和垂直方向上MTF的损失最小化。