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129 条记录 (耗时 0.029 秒)

    Optical protection using smectic liquid crystal
    91.
    发明授权
    Optical protection using smectic liquid crystal 失效
    使用近晶晶体的光学保护

    公开(公告)号：US4765719A

    公开(公告)日：1988-08-23

    申请号：US10748

    申请日：1987-02-04

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： A61F9/06 ,  G02F1/1334 ,  G02F1/35 ,  G02F1/13

    CPC分类号： G02F1/1334 ,  A61F9/067 ,  G02F1/3511 ,  G01J2001/0276

    摘要： Apparatus (10) for responding to incident electromagnetic radiation (16) to prevent direct transmission thereof when the magnitude of E-vector exceeds a predetermined value includes a first medium (12) through which incident electromagnetic radiation may be transmitted and smectic liquid crystal (14) positioned with respect to the first medium for responding to such E-vector to undergo Kerr effect in proportion to such E-vector so as to cooperate with such first medium to effect refraction of such electromagnetic radiation at an interface of the first medium and liquid crystal to prevent direct transmission of such radiation when the E-vector exceeds such predetermined magnitude. Smectic to nematic phase transition also may be used to prevent direct light transmission when incident radiation causes heating in the liquid crystal material.A method for responding to incident electromagnetic radiation to prevent transmission when the E-vector of such radiation exceeds a predetermined magnitude for short pulses of such radiation includes receiving incident electromagnetic radiation, directing such incident electromagnetic radiation into a first medium through which incident electromagnetic radiation may be transmitted, using smectic liquid crystal positioned with respect to the first medium for responding to a characteristic of the incident electromagnetic radiation to cooperate with such first medium to effect refraction of such electromagnetic radiation at an interface of the first medium and the liquid crystal.

    摘要翻译： 当E矢量的大小超过预定值时，用于响应入射电磁辐射（16）以防止其直接传输的设备（10）包括可以传播入射电磁辐射的第一介质（12）和近晶液晶（14） ）相对于第一介质定位以响应于此E向量以与该E向量成比例地进行克尔效应，以便与第一介质协作以在第一介质和液体的界面处实现这种电磁辐射的折射 晶体，以防止当E矢量超过预定幅度时这种辐射的直接传输。 当入射辐射引起液晶材料的加热时，也可以使用近晶系到向列相变来防止直接透光。 一种用于响应入射电磁辐射以防止当这种辐射的E矢量对于这种辐射的短脉冲超过预定幅度时的传播的方法包括接收入射的电磁辐射，将这种入射的电磁辐射引导到第一介质中，入射的电磁辐射可以通过该第一介质 使用相对于第一介质定位的相态液晶来响应入射电磁辐射的特性，以与第一介质协作以在第一介质和液晶的界面处实现这种电磁辐射的折射。

    Encapsulated liquid crystal material, apparatus and method
    92.
    发明授权
    Encapsulated liquid crystal material, apparatus and method 失效
    封装液晶材料，装置及方法

    公开(公告)号：US4707080A

    公开(公告)日：1987-11-17

    申请号：US585883

    申请日：1984-03-02

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： G02F1/1333 ,  C09K19/00 ,  C09K19/02 ,  C09K19/54 ,  G02F1/13 ,  G02F1/133 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/137 ,  G09F9/35 ,  C09K19/52

    CPC分类号： G02F1/1334 ,  C09K19/544 ,  G02F1/1335 ,  G02F2202/043 ,  Y10T428/2984 ,  Y10T428/2985

    摘要： A liquid crystal apparatus includes a plurality of volumes of liquid crystal material in a containment medium. At least some of the volumes are interconnected. The walls defining the volumes tend to distort the natural liquid crystal structure in the absence of an electric field, and the optical and electrical properties of the materials are such that in the absence of a field incident light is scattered or absorbed and in the presence of a field, scattering and/or absorption are reduced. The apparatus may be used in an optical display, optical shutter, billboard, etc., and it functions independently of polarization. Methods of making and using the apparatus also are included in the invention.

    摘要翻译： 液晶装置在容纳介质中包括多个体积的液晶材料。 至少一些卷是互连的。 限定体积的壁倾向于在没有电场的情况下使天然液晶结构变形，并且材料的光学和电学性质使得在没有场入射光被散射或吸收的情况下以及在 场，散射和/或吸收减少。 该装置可以用于光学显示器，光学快门，广告牌等中，并且其功能独立于极化。 制造和使用该装置的方法也包括在本发明中。

    Liquid crystal motion picture projector
    93.
    发明授权
    Liquid crystal motion picture projector 失效
    液晶电影投影机

    公开(公告)号：US4693557A

    公开(公告)日：1987-09-15

    申请号：US892497

    申请日：1986-08-01

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： G02F1/13 ,  G02F1/1334 ,  G03B21/00 ,  G03B21/132 ,  G03G15/04 ,  G09F9/00 ,  H04N9/31

    CPC分类号： H04N9/3108 ,  G02F1/1334 ,  G03B21/006 ,  G03B21/132 ,  G03G15/04 ,  G03G15/0435

    摘要： A liquid crystal moving picture projector includes a liquid crystal imager or display device and projection optics for projecting images sequentially created by the imager. The imager, sometimes referred to as a liquid crystal display, includes a continuous strip of liquid crystal material capable of temporarily storing charge to create characteristics of an image on a frame by frame basis capable of being projected and a dynamic electrode system selectively to apply charge to the liquid crystal material to create the sequential images. The projection optics includes light source, mask, shutter and lens systems capable of projecting the sequential images created by the imager.

    摘要翻译： 液晶运动图像投影仪包括液晶成像器或显示装置以及投影光学器件，用于投影由成像器顺序创建的图像。 有时称为液晶显示器的成像器包括能够临时存储电荷的连续条状液晶材料，以便逐帧地基于能够投射的图像产生特征，并且选择性地施加电荷的动态电极系统 到液晶材料以产生顺序图像。 投影光学器件包括能够投影由成像器创建的顺序图像的光源，掩模，快门和透镜系统。

    Encapsulated liquid crystal and method
    94.
    发明授权
    Encapsulated liquid crystal and method 失效

    公开(公告)号：US4605284A

    公开(公告)日：1986-08-12

    申请号：US626425

    申请日：1984-06-29

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： C09K19/54 ,  G02F1/1334 ,  G02F1/13

    CPC分类号： G02F1/1334 ,  C09K19/544 ,  G02F2202/043

    摘要： Briefly, according to one aspect of the invention, liquid crystal material, and especially nematic material, is encapsulated; according to another aspect the encapsulated liquid crystal material is used in liquid crystal devices, such as relatively large size visual display devices; and according to further aspects there are provided methods for encapsulating liquid crystal material and for making a liquid crystal device using such encapsulated liquid crystal material.

    Liquid crystal graphics imager and method
    95.
    发明授权
    Liquid crystal graphics imager and method 失效
    液晶图形成像仪和方法

    公开(公告)号：US4603945A

    公开(公告)日：1986-08-05

    申请号：US585884

    申请日：1984-03-02

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/137 ,  G03G15/04 ,  G03G15/05 ,  G03G15/22 ,  G06K15/12

    CPC分类号： G06K15/1238 ,  G02F1/1334 ,  G03G15/04 ,  Y10S359/90

    摘要： An image copying apparatus includes a copier for copying an image and an imager which forms characteristics of the image. The imager includes a liquid crystal image forming and storing system for forming in real time characteristics of an image in response to a prescribed input and for temporarily storing those characteristics for a time adequate for the copier to copy the same and a scanning device to scan the image forming and storing device to apply the characteristics thereto. In one embodiment the liquid crystal is operationally nematic liquid crystal encapsulated or contained in a support medium that has a capacitance characteristic, and the scanning device includes a dynamic electrode which applies surface charge to selected areas of the encapsulated liquid crystal/support medium affecting the liquid crystal structural alignment to create the image characteristics.A graphics copying method includes the steps of applying respective prescribed inputs to selected areas of a sheet-like liquid crystal material to cause the liquid crystal material to effect the transmission, scattering or absorption of incident light thereby to form characteristics of an image, and using a copying process copying the characteristics to form a copy of such image.

    摘要翻译： 图像复制设备包括用于复制图像的复印机和形成图像特征的成像器。 该成像器包括一个液晶成像和存储系统，用于响应规定的输入实时形成图像的特性，并暂时存储这些特性足以使复印机复制的时间和扫描装置扫描 图像形成和存储装置来应用其特性。 在一个实施方案中，液晶是可操作地被封装或包含在具有电容特性的载体介质中的向列液晶，并且扫描装置包括动态电极，其将表面电荷施加到影响液体的胶囊化液晶/载体介质的选定区域 水晶结构对齐创造出图像特征。 图形复制方法包括以下步骤：将各个规定的输入应用于片状液晶材料的选定区域，以使液晶材料实现入射光的透射，散射或吸收，从而形成图像的特性，并使用 复制过程复制特征以形成这样的图像的副本。

    Encapsulated liquid crystal and method
    96.
    发明授权
    Encapsulated liquid crystal and method 失效
    封装液晶及方法

    公开(公告)号：US4579423A

    公开(公告)日：1986-04-01

    申请号：US626426

    申请日：1984-06-29

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： C09K19/54 ,  G02F1/1334 ,  G02F1/13

    CPC分类号： C09K19/544 ,  G02F1/1334 ,  G02F2202/043 ,  Y10S359/90

    摘要： According to one aspect of the invention, liquid crystal material, and especially nematic material, is encapsulated; according to another aspect the encapsulated liquid crystal material is used in liquid crystal devices, such as relatively large size visual display devices; and according to further aspects there are provided methods for encapsulating liquid crystal material and for making a liquid crystal device using such encapsulated liquid crystal material.

    摘要翻译： 根据本发明的一个方面，封装了液晶材料，特别是向列型材料; 根据另一方面，封装的液晶材料用于液晶装置，例如相对较大尺寸的视觉显示装置; 并且根据其他方面，提供了用于封装液晶材料和制造使用这种封装液晶材料的液晶装置的方法。

    Light modulator, demodulator and method of communication employing the same
    97.
    发明授权
    Light modulator, demodulator and method of communication employing the same 失效
    光调制器，解调器和通信方法采用它

    公开(公告)号：US4436376A

    公开(公告)日：1984-03-13

    申请号：US235006

    申请日：1981-02-17

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： G02F1/139 ,  G02F2/00 ,  H04B10/10 ,  H04B10/142 ,  G02F1/13

    CPC分类号： H04B10/11 ,  G02F1/1393 ,  G02F2/00

    摘要： A light modulator for generating a beam of phase modulated light including a source of polarized light, at least one and preferably two liquid crystal cells having a thin layer of nematic liquid crystals of positive dielectric anisotropy through which the polarized light is directed to produce a beam of light having a phase shift corresponding to a modulating electrical signal which is applied to each of the liquid crystal cells. The liquid crystal cells in addition have a continuing electrical bias applied across the layers in order to achieve the rapid response times necessary to achieve modulation of the polarized light. Demodulation of the polarized light occurs by splitting the modulated light beam into its quadrature components and developing an electrical signal corresponding to the phase difference between the two quadrature components. A communication system involving its modulators and demodulators delivers communication through light as a transmission medium.

    摘要翻译： 一种用于产生包括偏振光源的相位调制光束的光调制器，至少一个并且优选两个具有正的介电各向异性的向列型液晶薄层的液晶单元，偏振光通过该液晶单元被引导以产生光束 具有对应于施加到每个液晶单元的调制电信号的相移的光。 液晶单元还具有施加在层之间的持续电偏压，以便实现实现偏振光的调制所需的快速响应时间。 通过将调制的光束分解成其正交分量并产生对应于两个正交分量之间的相位差的电信号来发生偏振光的解调。 涉及其调制器和解调器的通信系统通过光作为传输介质提供通信。

    Novel compositions, devices and method
    98.
    发明授权
    Novel compositions, devices and method 失效
    新型组合物，装置和方法

    公开(公告)号：US4140016A

    公开(公告)日：1979-02-20

    申请号：US785609

    申请日：1977-04-07

    申请人： James L. Fergason

    发明人： James L. Fergason

    IPC分类号： C09K19/54 ,  G01K11/12 ,  G01K11/16 ,  G01K13/00 ,  C09K3/34 ,  G01K3/00

    CPC分类号： G01K11/165 ,  C09K19/36 ,  C09K19/50 ,  G01K13/002 ,  C09K2019/2035 ,  C09K2219/13 ,  Y10T428/1036

    摘要： Disclosure is made of novel temperature sensing devices such as temperature indicating and recording devices. The devices of the invention differ from prior art devices in that they employ new and improved temperature indicating compositions. The temperature indicating compositions of the invention comprise an optically active, inert compound in admixture with nematic type liquid crystal compounds. The optically active, inert compounds lend a visible point of reference to the compositions when the liquid crystals pass through their liquid transition points. The proportion of optically active, inert compounds added to the nematic liquid crystals is that proportion which will impart chirality or twist to the compositions of the invention and is dependent upon the twisting power of the optically active ingredient. The compositions of the invention are unique in that they possess very sharp liquid transition points, i.e.; clearing points over a very narrow temperature range. This is an ideal characteristic for compositions to be employed as accurate sensors of specific temperatures.

    摘要翻译： 公开了诸如温度指示和记录装置的新型温度感测装置。 本发明的装置与现有技术的装置不同之处在于它们采用新的和改进的温度指示组合物。 本发明的温度指示组合物包含与向列型液晶化合物混合的旋光惰性化合物。 当液晶通过其液体转变点时，光学活性的惰性化合物给组合物带来可见的参考点。 添加到向列液晶中的光学惰性化合物的比例是赋予本发明组合物手性或扭曲并且取决于光学活性成分的扭转力的比例。 本发明的组合物是独特的，因为它们具有非常尖锐的液体转变点， 清除点在非常窄的温度范围内。 这是用作特定温度的精确传感器的组合物的理想特征。