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    Verfahren und Vorrichtung zur Modulation von unpolarisiertem Licht
    194.
    发明公开
    Verfahren und Vorrichtung zur Modulation von unpolarisiertem Licht 有权

    公开(公告)号：EP1211553A3

    公开(公告)日：2003-08-27

    申请号：EP01125612.0

    申请日：2001-10-26

    Applicant: Heidelberger Druckmaschinen Aktiengesellschaft

    Inventor： Fischer, Jörg-Achim ,  Gebhardt, Axel ,  Ressel, Peter

    IPC: G02F1/29

    CPC classification number: G02F1/292 ,  G02F2201/16 ,  G02F2201/305 ,  G02F2203/06 ,  G02F2203/48

    Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Modulation, insbesondere Amplitudenmodulation, von Licht mittels wenigstens eines Bragg-Modulators auf der Basis von domäneninvertierbarem Material, insbesondere für die Aufzeichnung eines zu druckenden Produktes, vorzugsweise zur Herstellung von Druckformen. Das erfindungsgemäße Verfahren zeichnet sich aus durch die Modulation von unpolarisiertem Licht unter Verwendung eines ersten Bragg-Modulators zur Festlegung einer Polarisationsebene in dem unpolarisierten Licht und zur Modulation des dieser Polarisationsebene zuzuordnenden Lichtanteils und durch die Verwendung eines zweiten Bragg-Modulators zur Modulation des Lichtanteils des unpolarisierten Lichtes, welcher der zur Polarisationsebene des ersten Bragg-Modulators orthogonalen Polarisationsebene zuzuordnen ist.

    Abstract translation: 基于可域可逆材料通过至少一个布拉格调制器对非偏振光进行幅度调制的方法和装置，非偏振光由第一布拉格调制器调制，用于限定非偏振光中的偏振面并用于调制光 部分被分配给偏振平面。 提供了第二布拉格调制器，其调制分配给与第一布拉格调制器的偏振平面正交的偏振平面的非偏振光的光部分。 该方法和装置特别适用于记录要印刷的产品，例如用于制造印刷形式。

    Optical crossbar switch based on switchable diffraction gratings
    195.
    发明公开
    Optical crossbar switch based on switchable diffraction gratings 审中-公开
    Auf schaltbaren Beugungsgittern beruhender optischer Kreuzschienenschalter

    公开(公告)号：EP1288704A1

    公开(公告)日：2003-03-05

    申请号：EP02016572.6

    申请日：2002-07-24

    Applicant: Agilent Technologies Inc. (a Delaware Corporation)

    Inventor： Stone, Thomas W.

    IPC: G02F1/31 ,  G02F1/1334 ,  H04Q11/00 ,  G02B6/28

    CPC classification number: H04Q11/0005 ,  G02B6/2861 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/351 ,  G02B6/3546 ,  G02B6/3556 ,  G02B6/3598 ,  G02F1/13342 ,  G02F1/31 ,  G02F2201/305 ,  H04Q2011/0022 ,  H04Q2011/0033 ,  H04Q2011/0049 ,  H04Q2011/0058

    Abstract: A crossbar switch (10) that utilizes high efficiency switched diffractive gratings (24) to form optical switching, interconnection, and routing networks. The diffractive gratings (24) are subdivided into regions (26), that are individually electrically, optically, or otherwise switchable, so that they may be turned "off" (a state in which the incident beam is undeviated) or "on" (a state in which the incident beam is diffracted to a new direction). In particular, the gratings may be switchable volume holographic polymer dispersed liquid crystal (PDLC) gratings. All of the above switching and/or routing operations are accomplished in "free space."

    Abstract translation: 一种利用高效开关衍射光栅（24）形成光交换，互连和路由网络的交叉开关（10）。 衍射光栅（24）被细分为区域（26），其分别是电学上，光学地或以其他方式切换的，使得它们可以被“关闭”（入射光束未被透明的状态）或“开” 入射光束被衍射到新的方向的状态）。 特别地，光栅可以是可切换的体积全息聚合物分散液晶（PDLC）光栅。 所有上述切换和/或路由操作均在“自由空间”中完成。

    Dynamic spatial equalizer based on a spatial light modulator
    196.
    发明公开
    Dynamic spatial equalizer based on a spatial light modulator 审中-公开
    动力学仪器

    公开(公告)号：EP1207418A1

    公开(公告)日：2002-05-22

    申请号：EP00440299.6

    申请日：2000-11-20

    Applicant: ALCATEL

    Inventor： Bayart, Dominique ,  Chevallier, Raymond ,  De Bougrenet De La Tocnaye, Jean-Louis ,  Dupont, Laurent

    IPC: G02F1/01 ,  G02F1/1334 ,  G02F1/1335

    CPC classification number: G02F1/1334 ,  G02F2201/305 ,  G02F2203/02 ,  G02F2203/055 ,  G02F2203/48

    Abstract: A spatial light modulator (SLM) is made up of a cell filled with a liquid crystal (LC) based substance. Latter has a variable scattering property with respect to an electric field present in the cell. By using a plurality of electrodes in the direct vicinity of said cell, it is then possible to build an electric field inside it which will permit advantageously to modulate a continuous spectrum from optical signals transmitted through said cell. The different pass bands present in said continuous spectrum while at least few of them comprise at least a respective different wavelength will have to be transmitted through said cell at different regions. Latter will correspond to different values of the amplitude of scattering such to be adapted to modulate the respective different pass bands. Such SLM is used to build a dynamic spectral equalizer. Latter contains a spectral dispersive element placed on an optical path of an incident light beam. This spectral dispersive element will spread continuously said incident light beam onto said SLM such that at least each different wavelength present in said incident light beam are focused or imaged towards a different spatial region of said SLM.

    Abstract translation: 空间光调制器（SLM）由填充有基于液晶（LC）的物质的单元组成。 后者相对于电池中存在的电场具有可变的散射特性。 通过使用直接靠近所述单元的多个电极，则可以在其内部建立一个电场，这将有利地从通过所述单元传输的光信号调制连续的频谱。 存在于所述连续光谱中的不同通带，而其中至少几个包含至少相应不同波长的不同通带将必须在不同区域通过所述电池传输。 后者将对应于散射幅度的不同值，以适应于调制各自不同的通带。 这样的SLM用于构建动态频谱均衡器。 后者包含放置在入射光束的光路上的光谱色散元件。 该光谱色散元件将连续地将所述入射光束扩展到所述SLM上，使得存在于所述入射光束中的至少每个不同波长被聚焦或朝向所述SLM的不同空间区域成像。

    POLARIZED LIGHT ILLUMINATOR, IMAGE DISPLAY, PORTABLE INFORMATION TERMINAL, HEAD-UP DISPLAY, METHOD FOR PRODUCING DIFFRACTION OPTICAL DEVICE, METHOD FOR PRODUCING POLARIZED LIGHT ILLUMINATOR, AND METHOD FOR PRODUCING IMAGE DISPLAY
    197.
    发明公开
    POLARIZED LIGHT ILLUMINATOR, IMAGE DISPLAY, PORTABLE INFORMATION TERMINAL, HEAD-UP DISPLAY, METHOD FOR PRODUCING DIFFRACTION OPTICAL DEVICE, METHOD FOR PRODUCING POLARIZED LIGHT ILLUMINATOR, AND METHOD FOR PRODUCING IMAGE DISPLAY 审中-公开
    偏光照明装置，图像显示，便携式数据终端，抬头显示器，方法光学衍射装置，方法有关View偏光照明装置及方法

    公开(公告)号：EP1146379A1

    公开(公告)日：2001-10-17

    申请号：EP99973130.0

    申请日：1999-11-29

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： OGIWARA, Akifumi ,  KURATOMI, Yasunori ,  TANAKA, Yukio ,  TAKIMOTO, Akio ,  YAMAGISHI, Shigekazu

    IPC: G02B27/28

    CPC classification number: G02F1/13362 ,  G02B5/1809 ,  G02B5/1857 ,  G02B5/30 ,  G02B27/0103 ,  G02B27/1073 ,  G02B27/1086 ,  G02B27/145 ,  G02B27/149 ,  G02B27/283 ,  G02B27/285 ,  G02B2027/0112 ,  G02B2027/0118 ,  G02F1/133615 ,  G02F2201/305

    Abstract: An optical medium of liquid crystal mixed with a polymer precursor is arranged between a pair of glass substrates 1202, and heated to for example about 50 C to 70 C and exposed for about 5min by interference fringes using laser light of about 515nm wavelength from, for example, an Ar laser. When the exposure begins (first stage), the polymer precursor begins to cure, and, as shown in Fig. 10(a), polymer columns 1203 are formed in a periodic arrangement. When the exposure is continued (second stage) liquid crystal polymers that have accumulated in the dark portions align themselves macroscopically in a direction that is perpendicular with respect to the walls of the cured polymer columns 1203, as shown in Fig. 10(b). The obtained diffractive optical element has high polarization selectivity and diffraction efficiency, and using such a diffractive optical element, it is possible to devise polarized illumination systems and image display systems that can display bright images with high contrast.

    Abstract translation: 与聚合物前体混合液晶的光学介质的一对玻璃基板1202的，并加热到例如约50℃至70℃之间设置，并通过使用从进行约515nm的波长的激光的干涉条纹曝光5分钟左右 实施例，其中Ar激光器。 当曝光开始（第一阶段），所述聚合物前体开始固化，并且，如在图10所示的（a）中，聚合物的列1203中的周期性排列形成。 当继续暴露（第二级）的液晶聚合物thathave累积在暗部赞同宏观的方向所做的是垂直于所述固化的聚合物列的壁1203中，如图10所示的（b）中。 将所得到的衍射光学元件具有高的偏振选择性和衍射效率，以及使用搜索一个衍射光学元件，所以能够设计出偏振光照明系统和图象显示系统也可以显示明亮的图像具有高对比度。

    VLSI visual display
    198.
    发明公开
    VLSI visual display 失效
    VLSI显示

    公开(公告)号：EP1072934A2

    公开(公告)日：2001-01-31

    申请号：EP00203844.6

    申请日：1996-08-26

    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

    Inventor： Alvelda, Phillip ,  Knight, Thomas F., Jr.

    IPC: G02F1/136

    CPC classification number: G02F1/133621 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0132 ,  G02B2027/0154 ,  G02B2027/0178 ,  G02F1/136 ,  G02F1/136277 ,  G02F2201/305 ,  G02F2203/34

    Abstract: The present invention provides a visual display including a high resolution miniature display compatible with VLSI technology and an optical system such as an optical magnifier used to enlarge the images displayed on the miniature display to be visible to the naked eye. The miniature display includes a VLSI backplane having an array of display elements monolithically formed with its driving circuit on a single crystalline semiconductor. Signal processing circuit or a microprocessor used to process image signals for the display may also be formed monolithically with the array and its driving circuit. The array may be designed using a software silicon compiler program to have randomly displaced elements or superpixels for reducing image aliasing. The array may also be designed to have display elements positioned and scaled to compensate for the optical distortion introduced by the magnifier.

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