Double substrate reflective spatial light modulator with self-limiting micro-mechanical elements

    公开(公告)号:US20050174625A1

    公开(公告)日:2005-08-11

    申请号:US11089920

    申请日:2005-03-24

    Applicant: Andrew Huibers

    Inventor: Andrew Huibers

    CPC classification number: G02B26/0833 G02B26/08 G02B26/0841 Y10S359/904

    Abstract: A spatial light modulator includes an upper optically transmissive substrate held above a lower substrate containing addressing circuitry. One or more electrostatically deflectable elements are suspended by hinges from the upper substrate. In operation, individual mirrors are selectively deflected and serve to spatially modulate light that is incident to, and then reflected back through, the upper substrate. Motion stops may be attached to the reflective deflectable elements so that the mirror does not snap to the bottom substrate. Instead, the motion stop rests against the upper substrate thus limiting the deflection angle of the reflective deflectable elements.

    Method and apparatus for using an array of grating light valves to produce multicolor optical images
    104.
    发明授权
    Method and apparatus for using an array of grating light valves to produce multicolor optical images 失效
    使用光栅光阀阵列产生多色光学图像的方法和装置

    公开(公告)号:US06219015B1

    公开(公告)日:2001-04-17

    申请号:US08591231

    申请日:1996-01-18

    CPC classification number: B81B3/001 B81C2201/115 G02B5/1828 G02B26/0808

    Abstract: A multicolor optical image-generating device comprised of an array of grating light valves (GLVs) organized to form light-modulating pixel units for spatially modulating incident rays of light. The pixel units are comprised of three subpixel components each including a plurality of elongated, equally spaced apart reflective grating elements arranged parallel to each other with their light-reflective surfaces also parallel to each other. Each subpixel component includes means for supporting the grating elements in relation to one another, and means for moving alternate elements relative to the other elements and between a first configuration wherein the component acts to reflect incident rays of light as a plane mirror, and a second configuration wherein the component diffracts the incident rays of light as they are reflected from the grating elements. The three subpixel components of each pixel unit are designed such that when red, green and blue light sources are trained on the array, colored light diffracted by particular subpixel components operating in the second configuration will be directed through a viewing aperture, and light simply reflected from particular subpixel components operating in the first configuration will not be directed through the viewing aperture.

    Abstract translation: 一种多色光学图像产生装置,包括被组织以形成用于空间调制入射光线的光调制像素单元的光栅光阀阵列(GLV)。 像素单元由三个子像素部件组成,每个子像素部件包括彼此平行布置的多个细长的等间隔开的反射光栅元件,其光反射表面也彼此平行。 每个子像素部件包括用于相对于彼此支撑光栅元件的装置,以及用于相对于其它元件移动交替元件的装置,以及用于将入射光线反射为平面镜的第一配置之间的第一配置,以及第二 配置,其中所述分量在入射光线从所述光栅元件反射时衍射。 每个像素单元的三个子像素分量被设计成使得当在阵列上训练红色,绿色和蓝色光源时,由在第二配置中操作的特定子像素分量衍射的彩色光将被引导通过观察孔,并且光简单地反射 来自在第一配置中操作的特定子像素组件将不被引导通过观察孔。

    Spatial Light Modulators with Light Transmissive Substrates
    105.
    发明申请
    Spatial Light Modulators with Light Transmissive Substrates 审中-公开
    具有光透射衬底的空间光调制器

    公开(公告)号:US20070263275A1

    公开(公告)日:2007-11-15

    申请号:US11745219

    申请日:2007-05-07

    Applicant: Andrew Huibers

    Inventor: Andrew Huibers

    CPC classification number: G02B26/0841

    Abstract: Disclosed herein is a spatial light modulator having an array of pixels enclosed within a space between a light transmissive substrate and another substrate. The light transmissive substrate is spaced apart from the reflective mirror plates at a distance such that physical defects of the light transmissive substrate are out of focus of the projection system.

    Abstract translation: 本文公开了一种空间光调制器,其具有封装在透光基板和另一基板之间的空间内的像素阵列。 透光基板与反射镜板隔开一段距离,使得透光基板的物理缺陷不在投影系统的焦点之外。

    Methods and apparatus for selectively updating memory cell arrays
    106.
    发明授权
    Methods and apparatus for selectively updating memory cell arrays 有权
    用于选择性地更新存储单元阵列的方法和装置

    公开(公告)号:US07221498B2

    公开(公告)日:2007-05-22

    申请号:US10986588

    申请日:2004-11-12

    Abstract: Methods and apparatus for selectively updating memory cells of a memory cell array are provided. The memory cells of each row of the memory cell array are provided with a plurality of wordlines. Memory cells of the row are activated and updated by separated wordlines. In an application of display systems using memory cell arrays for controlling the pixels of the display system and pulse-width-modulation (PWM) technique for displaying grayscales, the pixels can be modulated by different PWM waveforms. The perceived dynamic-false-contouring artifacts are reduced thereby. In another application, the provision of multiple wordlines enables precise measurements of voltages maintained by memory cells of the memory cell array.

    Abstract translation: 提供了选择性地更新存储单元阵列的存储单元的方法和装置。 存储单元阵列的每一行的存储单元被提供有多个字线。 该行的存储单元被分离的字线激活和更新。 在使用用于控制显示系统的像素的存储单元阵列和用于显示灰度级的脉宽调制(PWM))技术的显示系统的应用中,可以通过不同的PWM波形来调制像素。 感知到的动态假轮廓伪像由此减弱。 在另一个应用中,提供多个字线可以精确测量由存储单元阵列的存储单元维持的电压。

    Multiple spatial light modulators in a package
    107.
    发明申请
    Multiple spatial light modulators in a package 审中-公开
    封装中的多个空间光调制器

    公开(公告)号:US20070058182A1

    公开(公告)日:2007-03-15

    申请号:US11514077

    申请日:2006-08-30

    Applicant: Andrew Huibers

    Inventor: Andrew Huibers

    CPC classification number: H04N9/3105 G02B26/0841 H04N13/305

    Abstract: Multiple pixel arrays are enclosed in one single package. The multiple pixel arrays can be disposed in the package with any desired geometric configurations.

    Abstract translation: 多个像素阵列封装在一个单一的封装中。 多个像素阵列可以以任何期望的几何构型布置在封装中。

    Micromirror modulation method and digital apparatus with improved grayscale
    108.
    发明授权
    Micromirror modulation method and digital apparatus with improved grayscale 有权
    微镜调制方法和改进灰度级的数字设备

    公开(公告)号:US06999224B2

    公开(公告)日:2006-02-14

    申请号:US10798777

    申请日:2004-03-10

    Applicant: Andrew Huibers

    Inventor: Andrew Huibers

    CPC classification number: G02B26/0841 H04N9/312 H04N9/3182

    Abstract: A method and apparatus are disclosed for increasing contrast in micromirror-based image display devices. As a result the displayed image is a more faithful reproduction of the original and is more pleasing to human perception than is possible with a low contrast display. The method and apparatus comprise a micromirror design and a modulation scheme for driving micromirrors with a combination of analog and digital techniques to achieve partial and full micromirror deflection. The analog techniques permit the mirrors to be deflected to positions intermediate between the resting position and the position of maximum deflection. These intermediate deflections appear as intermediate light levels in an image. Compared to digital modulation, the analog techniques provide an increase in the number of light levels that can be displayed by a system that is limited by its incoming data rate and maximum micromirror speed.

    Abstract translation: 公开了一种用于增加基于微镜的图像显示装置中的对比度的方法和装置。 因此,显示的图像是对原始图像的更忠实的再现,并且比对比度低的显示可能更令人喜欢人类的感觉。 该方法和装置包括微镜设计和用于通过模拟和数字技术的组合来驱动微反射镜以实现部分和全部微镜偏转的调制方案。 模拟技术允许镜子偏转到静止位置和最大偏转位置之间的位置。 这些中间偏转在图像中显示为中间光级。 与数字调制技术相比,模拟技术可以增加受到其数据速率和最大微镜速度限制的系统可显示的光级数。

    Micromirror projection of polarized light
    109.
    发明申请
    Micromirror projection of polarized light 有权
    微镜投影偏振光

    公开(公告)号:US20050270498A1

    公开(公告)日:2005-12-08

    申请号:US11145466

    申请日:2005-06-03

    CPC classification number: H04N5/7458 G03B21/2073

    Abstract: The micromirror-based projection system of the present invention uses polarized illumination light in producing desired images on a display target. The display target has coated thereon a polarization film that absorbs most of the ambient light that would be incident onto the display target otherwise. Polarized illumination light is provided incident to the reflective surfaces of the spatial light modulator. The polarization direction of the illumination light can be associated with the rotation axes of the micromirrors and the polarization direction of the polarized film on the display target.

    Abstract translation: 本发明的基于微镜的投影系统使用偏振照明光来产生显示目标上的所需图像。 显示目标涂覆有偏振膜,该偏振膜吸收将会入射到显示目标上的大部分环境光,否则。 偏振照明光入射到空间光调制器的反射表面。 照明光的偏振方向可以与微镜的旋转轴和显示目标上的偏振膜的偏振方向相关联。

    Micromirror modulation method and digital apparatus with improved grayscale
    110.
    发明申请
    Micromirror modulation method and digital apparatus with improved grayscale 有权
    微镜调制方法和改进灰度级的数字设备

    公开(公告)号:US20050200939A1

    公开(公告)日:2005-09-15

    申请号:US10798777

    申请日:2004-03-10

    Applicant: Andrew Huibers

    Inventor: Andrew Huibers

    CPC classification number: G02B26/0841 H04N9/312 H04N9/3182

    Abstract: A method and apparatus are disclosed for increasing contrast in micromirror-based image display devices. As a result the displayed image is a more faithful reproduction of the original and is more pleasing to human perception than is possible with a low contrast display. The method and apparatus comprise a micromirror design and a modulation scheme for driving micromirrors with a combination of analog and digital techniques to achieve partial and full micromirror deflection. The analog techniques permit the mirrors to be deflected to positions intermediate between the resting position and the position of maximum deflection. These intermediate deflections appear as intermediate light levels in an image. Compared to digital modulation, the analog techniques provide an increase in the number of light levels that can be displayed by a system that is limited by its incoming data rate and maximum micromirror speed.

    Abstract translation: 公开了一种用于增加基于微镜的图像显示装置中的对比度的方法和装置。 因此,显示的图像是对原始图像的更忠实的再现,并且比对比度低的显示可能更令人喜欢人类的感觉。 该方法和装置包括微镜设计和用于通过模拟和数字技术的组合来驱动微反射镜以实现部分和全部微镜偏转的调制方案。 模拟技术允许镜子偏转到静止位置和最大偏转位置之间的位置。 这些中间偏转在图像中显示为中间光级。 与数字调制技术相比,模拟技术可以增加受到其数据速率和最大微镜速度限制的系统可显示的光级数。

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