利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

76 条记录 (耗时 0.026 秒)

    Switchable color filter
    3.
    发明申请
    Switchable color filter 失效
    可切换滤色片

    公开(公告)号：US20050099373A1

    公开(公告)日：2005-05-12

    申请号：US10415713

    申请日：2001-11-01

    申请人： Jurg Funfschilling ,  Klaus Schmitt ,  Martin Schadt

    发明人： Jurg Funfschilling ,  Klaus Schmitt ,  Martin Schadt

    IPC分类号： G02B5/20 ,  G02B5/30 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/23 ,  H04N9/31 ,  G09G3/36

    CPC分类号： H04N9/3117 ,  G02B5/3016 ,  G02F1/133533 ,  G02F1/133536 ,  G02F1/13473 ,  G02F1/23 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2201/343 ,  G02F2203/34

    摘要： A liquid crystal switchable color filter switches between three color bands and is preferably used for time-sequential devices, such as projection devices, direct view displays and video cameras. The color filter may employ circularly polarizing selective reflection bands of at least four cholesteric filters together with three liquid crystal switches and related retarder layers. In one embodiment, the handedness of the second cholesteric is equal to the handedness of the third cholesteric filter and opposite to the handedness of the first and fourth cholesteric filter and, for the blocking state of a color band, the optic axis of the corresponding liquid crystal switch is parallel or perpendicular to the polarization direction. This concept leads to improved, excellent color saturation and requires less stringent production tolerances than in the prior art. Moreover, it advantageously allows overlapping color transmission bands thus improving the light efficiency.

    摘要翻译： 液晶可切换彩色滤光片在三个色带之间切换，优选用于诸如投影设备，直视图和摄像机的时序设备。 滤色器可以采用至少四个胆甾型滤光器的圆偏振选择反射带，以及三个液晶开关和相关的延迟器层。 在一个实施例中，第二胆甾醇的螺旋性等于第三胆甾型滤光器的螺旋性，并且与第一和第四胆甾型滤光器的螺旋性相反，并且对于色带的阻挡状态，相应液体的光轴 晶体开关平行或垂直于偏振方向。 该概念导致改进的优异的色饱和度，并且比现有技术要求的生产公差要小得多。 此外，其有利地允许重叠的彩色传输频带，从而提高光效率。

    Optically non-linear polymeric coatings
    8.
    发明授权
    Optically non-linear polymeric coatings 失效
    光学非线性聚合物涂层

    公开(公告)号：US5447662A

    公开(公告)日：1995-09-05

    申请号：US809991

    申请日：1991-12-18

    申请人： Rolf-Peter Herr ,  Martin Schadt ,  Klaus Schmitt

    发明人： Rolf-Peter Herr ,  Martin Schadt ,  Klaus Schmitt

    IPC分类号： G02F1/35 ,  G02F1/065 ,  G02F1/1337 ,  G02F1/355 ,  G02F1/361 ,  G02F1/377 ,  F21V9/00 ,  C09K19/52 ,  G03C1/00

    CPC分类号： G02F1/377 ,  C09K19/3852 ,  C09K19/408 ,  G02F1/065 ,  Y10S430/146

    摘要： Polymeric coatings having optically non-linear or optically anisotropic properties in selected areas and of any arbitrary shape including a pattern. These zones are sharply defined from surfaces having centro-symmetrical or isotropic configurations or from surfaces with different optically non-linear or anisotropic properties. The polymeric coating has optically non-linear and/or mesogenic side chains, selected surface areas of which are cross-linked by the action of light, the zones which have optically non-linear or anisotropic properties being subjected to the influence or orienting fields or forces during the cross-linking process. The distances between optically different zones are limited to typically about 1 .mu.m.

    摘要翻译： 聚合物涂层在所选择的区域中具有光学上非线性或光学各向异性的特性，并且包括图案的任意形状。 这些区域从具有中心对称或各向同性构造的表面或具有不同光学非线性或各向异性特性的表面清楚地限定。 聚合物涂层具有光学非线性和/或介晶侧链，其选择的表面区域通过光的作用而交联，具有光学非线性或各向异性特性的区域受到影响或定向场的影响， 在交联过程中的力量。 光学不同区域之间的距离通常限制在1μm左右。

    Switchable color filter
    10.
    发明授权
    Switchable color filter 失效
    可切换滤色片

    公开(公告)号：US07126654B2

    公开(公告)日：2006-10-24

    申请号：US10415713

    申请日：2001-11-01

    申请人： Jürg Fünfschilling ,  Klaus Schmitt ,  Martin Schadt

    发明人： Jürg Fünfschilling ,  Klaus Schmitt ,  Martin Schadt

    IPC分类号： G02F1/1347

    CPC分类号： H04N9/3117 ,  G02B5/3016 ,  G02F1/133533 ,  G02F1/133536 ,  G02F1/13473 ,  G02F1/23 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2201/343 ,  G02F2203/34

    摘要： A liquid crystal switchable color filter switches between three color bands and is preferably used for time-sequential devices, such as projection devices, direct view displays and video cameras. The color filter may employ circularly polarizing selective reflection bands of at least four cholesteric filters together with three liquid crystal switches and related retarder layers. In one embodiment, the handedness of the second cholesteric is equal to the handedness of the third cholesteric filter and opposite to the handedness of the first and fourth cholesteric filter and, for the blocking state of a color band, the optic axis of the corresponding liquid crystal switch is parallel or perpendicular to the polarization direction. This concept leads to improved, excellent color saturation and requires less stringent production tolerances than in the prior art. Moreover, it advantageously allows overlapping color transmission bands thus improving the light efficiency.

    摘要翻译： 液晶可切换彩色滤光片在三个色带之间切换，优选用于诸如投影设备，直视图和摄像机的时序设备。 滤色器可以采用至少四个胆甾型滤光器的圆偏振选择反射带，以及三个液晶开关和相关的延迟器层。 在一个实施例中，第二胆甾醇的螺旋性等于第三胆甾型滤光器的螺旋性，并且与第一和第四胆甾型滤光器的螺旋性相反，并且对于色带的阻挡状态，相应液体的光轴 晶体开关平行或垂直于偏振方向。 该概念导致改进的优异的色饱和度，并且比现有技术要求的生产公差要小得多。 此外，其有利地允许重叠的彩色传输频带，从而提高光效率。