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58 条记录 (耗时 0.036 秒)

    OPTICAL ELEMENT
    24.
    发明申请
    OPTICAL ELEMENT 有权
    光学元件

    公开(公告)号：US20080098488A1

    公开(公告)日：2008-04-24

    申请号：US11931937

    申请日：2007-10-31

    申请人： Martin Schadt ,  Hubert Seiberle

    发明人： Martin Schadt ,  Hubert Seiberle

    IPC分类号： G06F21/00 ,  G02F1/1333 ,  G02F1/1335 ,  G02B5/30

    CPC分类号： B42D25/364 ,  B42D25/29 ,  B42D25/391 ,  B42D2033/26 ,  B42D2035/24 ,  G02B5/30 ,  G02B5/3016 ,  G02B5/3025 ,  G02B5/3083 ,  G02B5/32 ,  G02B27/28 ,  G02B27/281 ,  G02F1/13363 ,  G06K19/06046

    摘要： A component has a substrate (1) made of a transparent material, for example glass. On this layer (1), there is a linear polarizer (2) on which there is a layer (3) of a photo-oriented polymer network (PPN)(-LPP) which is oriented in locally varying fashion via its surface which covers the substrate. The layer (3) is adjoined by an anisotropic layer (4) of cross-linked liquid-crystal monomers. This layer (4) then has a molecular arrangement whose orientation is defined by the underlying orientation layer (3). The layer (4) will have been photocross-linked by exposure to a suitable wavelength of light, with the result that the molecular orientation defined by the PPN layer (3) is fixed. The element, denoted as a whole by 7, can then be used as an optical component which is protected against forgery, it being possible for the orientation pattern of the liquid-crystal layer or the optical information stored therein to be made visible by means of an external polarizer (5), for example.

    摘要翻译： 部件具有由透明材料例如玻璃制成的基板（1）。 在该层（1）上，存在线性偏振器（2），其上存在光取向聚合物网络（PPN）（LPP）的层（3），其被局部变化的方式通过其表面覆盖 底物。 层（3）由交联液晶单体的各向异性层（4）邻接。 然后，该层（4）具有其取向由下面的取向层（3）限定的分子排列。 层（4）将通过暴露于合适的波长的光而被交叉连接，结果是由PPN层（3）限定的分子取向是固定的。 然后，将整体表示为7的元件可以用作防止伪造的光学部件，可以使液晶层的取向图案或其中存储的光学信息通过 外部偏振器（5）。

    Optical identification element
    26.
    发明授权
    Optical identification element 有权
    光学识别元件

    公开(公告)号：US06496287B1

    公开(公告)日：2002-12-17

    申请号：US09647717

    申请日：2000-10-04

    申请人： Hubert Seiberle ,  Franco Moia ,  Martin Schadt

    发明人： Hubert Seiberle ,  Franco Moia ,  Martin Schadt

    IPC分类号： G02B532

    CPC分类号： B42D25/328 ,  B42D25/00 ,  B42D2033/26 ,  G03H1/0256 ,  G03H2250/38 ,  G06K19/16

    摘要： An optical component in the form of an identification element (such as for counterfeit protection or copy protection) includes an optically anisotropic layer comprising regions of different optical axes that is arranged over a reflector. The anisotropic layer may be implemented with a liquid crystal polymer in which the orientation of the liquid crystals is different in different areas. Such an orientation pattern is initially hidden from a viewer, but becomes visible by means of an additional polariser. To improve the visual appearance of the identification element, a white light hologram may be used for the reflector.

    摘要翻译： 识别元件（例如用于防伪或复制保护）形式的光学部件包括光学各向异性层，该光学各向异性层包括布置在反射器上的不同光轴的区域。 各向异性层可以用液晶聚合物来实现，其中液晶的取向在不同的区域是不同的。 这样的定向图案最初被隐藏到观看者，但是通过附加的偏振器变得可见。 为了改善识别元件的视觉外观，可以对反射器使用白光全息图。

    Optical component and method of manufacture
    27.
    发明授权
    Optical component and method of manufacture 有权

    公开(公告)号：US06369869B2

    公开(公告)日：2002-04-09

    申请号：US09779611

    申请日：2001-02-09

    申请人： Martin Schadt ,  Andreas Schuster ,  Hubert Seiberle

    发明人： Martin Schadt ,  Andreas Schuster ,  Hubert Seiberle

    IPC分类号： G02F11337

    CPC分类号： C08F246/00 ,  C08G77/38 ,  G02B5/3016 ,  G02F1/133365 ,  G02F1/133636 ,  G02F1/133711 ,  G02F1/133753 ,  G02F1/133788 ,  G02F2001/133765

    摘要： An optical component having a hybrid layer structure includes an orienting layer, a further layer in contact with the orienting layer and incorporating a cross-linked liquid crystalline monomer and at least one additional orienting layer on top of the liquid crystalline layer, and preferably includes one additional cross-linked liquid crystalline monomer. The layers have different functions, such as orienting or retarding. At least one of the orienting layers should be a photo-orientating polymer network layer, or have locally varying orienting pattern. These optical components are useful in transmittance and reflective liquid crystal displays, such as rotation cells, STN cells, ferroelectric cells, and cells having an addressable active matrix. Such cells are useful in optical and integrated optical devices, and may be used for safeguarding against counterfeiting and copying in transmission.

    Optical component
    28.
    发明授权
    Optical component 失效
    光学元件

    公开(公告)号：US6144428A

    公开(公告)日：2000-11-07

    申请号：US721510

    申请日：1996-09-26

    申请人： Martin Schadt ,  Andreas Schuster ,  Hubert Seiberle

    发明人： Martin Schadt ,  Andreas Schuster ,  Hubert Seiberle

    IPC分类号： B42D15/00 ,  B42D25/29 ,  G02B5/30 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/1335

    CPC分类号： G02B5/3016 ,  B42D25/29 ,  B42D2033/26

    摘要： By combination of a hybrid layer formed from an orienting layer and a layer of a cross-linked liquid crystalline monomer with a reflector, and by appropriate local structuring of the molecule orientation, an optical pattern is obtained which cannot be copied using conventional photocopiers. This pattern is useful as means for protecting documents, such as banknotes, credit cards, and the like, from being copied, and can be detected by manually or automatically, operated optical reading devices.

    摘要翻译： 通过由定向层和交联液晶单体层与反射体形成的混合层和通过适当的局部构建分子取向的组合，获得不能使用常规复印机复制的光学图案。 该图案作为用于保护诸如纸币，信用卡等的文件不被复制的手段是有用的，并且可以通过手动或自动操作的光学读取装置来检测。

    Method for giving cholesteric liquid crystals a planar orientation free from faulty inclination
    29.
    发明授权
    Method for giving cholesteric liquid crystals a planar orientation free from faulty inclination 失效
    给出胆甾醇型液晶不具有错误倾斜的平面取向的方法

    公开(公告)号：US5500752A

    公开(公告)日：1996-03-19

    申请号：US373875

    申请日：1995-01-17

    申请人： Martin Schadt ,  Hubert Seiberle

    发明人： Martin Schadt ,  Hubert Seiberle

    IPC分类号： G02F1/1337 ,  G02F1/137 ,  G02F1/13

    CPC分类号： G02F1/13718

    摘要： A liquid crystal cell comprising a cholesteric liquid crystal (3) between parallel plates (1, 2) as used e.g. for optical filters. The previously unavoidable interference through faulty disinclination is eliminated in that the cholesteric liquid crystal is mixed with a nematic or smectic liquid crystal material having negative dielectric anisotropy and the cell is subjected to an electric field directed at right angles to the plates.

    摘要翻译： 一种液晶单元，包括平行板（1,2）之间的胆甾醇型液晶（3） 用于光学滤波器。 由于胆甾型液晶与具有负介电各向异性的向列型或近晶型液晶材料混合，并且电池受到与板成直角的电场的影响，消除了通过故障排除的先前不可避免的干扰。