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    Reflective liquid crystal strain gauge with aspected particles and polarization-sensitive devices
    1.
    发明授权
    Reflective liquid crystal strain gauge with aspected particles and polarization-sensitive devices 失效
    反射型液晶应变计，带有极化颗粒和偏振敏感元件

    公开(公告)号：US06778236B1

    公开(公告)日：2004-08-17

    申请号：US09584875

    申请日：2000-06-01

    申请人： Gregory P. Crawford ,  Darran R. Cairns ,  Christopher C. Bowley ,  Sorasak Danworaphong ,  Adam K. Fontecchio ,  Sadeg M. Faris ,  Le Li

    发明人： Gregory P. Crawford ,  Darran R. Cairns ,  Christopher C. Bowley ,  Sorasak Danworaphong ,  Adam K. Fontecchio ,  Sadeg M. Faris ,  Le Li

    IPC分类号： G02F11333

    CPC分类号： G01B11/165 ,  G01B11/18 ,  G01L1/241 ,  G02F1/13342

    摘要： A reflective strain gauge includes an holographically-formed polymer dispersed liquid crystal (H-PDLC) film comprising layers of liquid crystal (LC) droplets in a matrix polymer, the H-PDLC film having a reflection or transmission grating capable of reflecting or transmitting light of a selected wavelength, and means for adhering the film to a surface of a workpiece for monitoring the strain at said surface. A change in the nature of the reflected light is an indication of strain. Also included is a polarizing material having an holographically-formed polymer dispersed liquid crystal (H-PDLC) film comprising layers of liquid crystal (LC) droplets in a matrix polymer, the H-PDLC film having a reflection grating capable of reflecting light of a selected wavelength, wherein the reflection grating of the H-PDLC film is oriented, such that the refractive index parallel to said axis of orientation (ne) is greater than the refractive index perpendicular to said axis (no).

    摘要翻译： 反射应变计包括在基质聚合物中包含液晶（LC）液滴层的全息形成的聚合物分散液晶（H-PDLC）膜，该H-PDLC膜具有能够反射或透射光的反射或透射光栅 以及用于将膜粘附到工件的表面以用于监测所述表面处的应变的装置。 反射光的性质的变化表明了应变。 还包括具有在基质聚合物中包含液晶（LC）液滴层的全息形成的聚合物分散液晶（H-PDLC）膜的偏振材料，所述H-PDLC膜具有能够反射光的反射光栅 选择的波长，其中H-PDLC膜的反射光栅被定向，使得平行于所述取向轴（ne）的折射率大于垂直于所述轴线（no）的折射率。

    Holographically-formed polymer dispersed liquid crystals with multiple gratings
    2.
    发明授权
    Holographically-formed polymer dispersed liquid crystals with multiple gratings 失效
    具有多个光栅的全息形成的聚合物分散液晶

    公开(公告)号：US06538775B1

    公开(公告)日：2003-03-25

    申请号：US09398964

    申请日：1999-09-16

    申请人： Christopher C. Bowley ,  Adam K. Fontecchio ,  Jaujeng Lin ,  Gregory P. Crawford ,  Sadeg M. Faris ,  Le Li

    发明人： Christopher C. Bowley ,  Adam K. Fontecchio ,  Jaujeng Lin ,  Gregory P. Crawford ,  Sadeg M. Faris ,  Le Li

    IPC分类号： G03H102

    CPC分类号： G03H1/28 ,  G02B5/203 ,  G02B5/32 ,  G02F1/13342 ,  G03H1/0236 ,  G03H1/0248 ,  G03H1/04 ,  G03H1/265 ,  G03H2001/2231 ,  G03H2223/12 ,  G03H2223/18 ,  G03H2260/12 ,  G03H2260/33

    摘要： A multicolored reflection liquid crystal display device includes a pair of substrates having a reflective holographic polymer dispersed liquid crystal (H-PDLC) film disposed therebetween. The H-PDLC film contains at least two different reflection gratings capable of reflecting two different wavelengths of light. A multicolored reflection H-PDLC is obtained by simultaneously illuminating a plurality of regions of a film comprised of a mixture of a liquid crystal and a photo-polymerizable monomer with a plurality of holographic light patterns capable of providing liquid crystal layers of different spacings so as to obtain different reflection gratings in each of the regions. A mask is placed between each of the laser light beams and the film to form a pattern of light and dark regions on the film. Each mask is positioned such that at least one light region of a first beam pair coincides with at least one dark region of a second beam pair within the film. A multiple grating liquid crystal display device including an H-PDLC film having a first region comprising liquid crystal and matrix polymer layers forming a transmission grating and a second region comprising liquid crystal and matrix polymer layers forming a reflection grating capable of reflecting a preselected wavelength of light also is described.

    摘要翻译： 多彩反射液晶显示装置包括一对基板，其具有设置在其间的反射全息聚合物分散液晶（H-PDLC）膜。 H-PDLC膜包含能够反射两种不同波长的光的至少两种不同的反射光栅。 通过同时用能够提供不同间隔的液晶层的多个全息光图案同时照射由液晶和可光聚合单体的混合物组成的膜的多个区域来获得多色反射H-PDLC，从而 以在每个区域中获得不同的反射光栅。 在每个激光束和膜之间放置掩模以在膜上形成光和暗区域的图案。 每个掩模被定位成使得第一光束对的至少一个光区与膜内的第二光束对的至少一个暗区重合。 一种多光栅液晶显示装置，包括具有包括液晶的第一区域和形成透射光栅的基质聚合物层的H-PDLC膜，以及包含液晶的第二区域和形成能够反射预选波长的反射光栅的基质聚合物层 光也被描述。

    Coloring media having improved brightness and color characteristics
    4.
    发明授权
    Coloring media having improved brightness and color characteristics 失效

    公开(公告)号：US06753044B2

    公开(公告)日：2004-06-22

    申请号：US08890320

    申请日：1997-07-09

    申请人： Sadeg M. Faris ,  Le Li

    发明人： Sadeg M. Faris ,  Le Li

    IPC分类号： G02F11335

    CPC分类号： G02F1/1335 ,  B82Y15/00 ,  C09B67/0098 ,  C09D11/037 ,  C09D11/17 ,  C09K19/00 ,  C09K19/52 ,  E06B9/24 ,  E06B2009/2464 ,  F24S50/80 ,  G01D11/28 ,  G02B5/3016 ,  G02B27/0093 ,  G02F1/1334 ,  G02F1/133514 ,  G02F1/133536 ,  G02F1/13362 ,  G02F1/133621 ,  G02F2001/133543 ,  Y02E10/40 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041 ,  Y10T428/1086 ,  Y10T428/24017 ,  Y10T428/25 ,  Y10T428/254

    摘要： Disclosed are novel reflective microflakes for use in making “additive-primary” coloring media having improved reflection characteristics over the red, green and blue super-bright color characteristics, and “super-white” coloring media having Magnesium-Oxide like color characteristics. The coloring media of the present invention provides a palette of colors for imparting color characteristics or forming color images upon surfaces of arbitrary surface geometry. In the preferred embodiments of the invention, the microflakes are made from cholesteric liquid crystal (CLC) material, wherein the pitch of the helices of the liquid crystal molecules in each CLC microflake varies along the thickness dimension (i.e. transverse to the surface) thereof. Depending on the final spiral structure of the materials utilized, the CLC circularly polarizing materials reflect either left-handed or right-handed circularly polarized light. In a preferred embodiment, each CLC microflake of additive-primary coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its tuned reflection band. Also, each CLC microflake of super-white coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its broadband reflection band. The super-white and additive-primary coloring media of the present invention can be used to produce virtually any color. By virtue of the circularly polarizing reflection characteristics of the CLC microflakes, the resulting coloring media can be used to form polarization-encoded spatially multiplexed images (SMI) on radiation absorbing surfaces, to produce stereoscopic 3-D images when viewed through electrically-passive polarization glasses. The coloring media may also be used in 2-D and 3-D xerographic printing processes.

    Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter
    6.
    发明授权
    Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter 失效
    采用复合红外反射偏振滤光片的非吸收型电光玻璃结构

    公开(公告)号：US06559903B2

    公开(公告)日：2003-05-06

    申请号：US09032302

    申请日：1998-02-27

    申请人： Sadeg M. Faris ,  Le Li ,  Jian-Feng Li

    发明人： Sadeg M. Faris ,  Le Li ,  Jian-Feng Li

    IPC分类号： G02F11335

    CPC分类号： C09B67/0098 ,  B82Y15/00 ,  C09D11/037 ,  C09D11/17 ,  C09K19/00 ,  C09K19/52 ,  E06B9/24 ,  E06B2009/2464 ,  F24S50/80 ,  G01D11/28 ,  G02B5/3016 ,  G02B26/02 ,  G02B27/0093 ,  G02F1/1334 ,  G02F1/133514 ,  G02F1/133536 ,  G02F1/13362 ,  G02F1/133621 ,  G02F1/13471 ,  G02F1/13718 ,  G02F1/1393 ,  G02F2001/133543 ,  G02F2001/133623 ,  H04N2213/008 ,  Y02B10/20 ,  Y02E10/40

    摘要： An electro-optical glazing structure having reflection and transparent modes of operation for selectively reflecting and transmitting electromagnetic radiation without absorption, respectively. The electro-optical glazing structure comprising: an electro-optical panel having first and second optical states of operation; a composite broad-band infrared (IR) reflective polarizing filter structure of electrically-passive construction, mounted to the electro-optical panel; and an optical state switching mechanism for switching the electro-optical panel to the first optical state of operation in order to induce the electro-optical glazing structure into the reflection mode of operation, and for switching the electro-optical panel to the second optical state of operation in order to induce the electro-optical glazing structure into the transparent mode of operation. When the electro-optical panel is switched to the first optical state of operation, electromagnetic radiation within a first prespecified bandwidth falling incident upon the electro-optical panel is reflected from the electro-optical panel without absorption. When the electro-optical panel is switched to the second optical state of operation, electromagnetic radiation within a second prespecified bandwidth falling incident upon the electro-optical panel is transmitted through the electro-optical panel without absorption. By virtue of the present invention, the glazing structure is capable of providing both thermal insulation as well as privacy functions.

    摘要翻译： 一种具有反射和透明工作模式的电光玻璃结构，分别用于选择性地反射和传输无吸收的电磁辐射。 该电光玻璃结构包括：具有第一和第二光学操作状态的电光面板; 一种电动被动结构的复合宽带红外（IR）反射型偏振滤光器结构，安装在电光面板上; 以及用于将电光学面板切换到第一光学状态的光学状态切换机构，以便将电光玻璃结构引入反射操作模式，并且将电光学面板切换到第二光学状态 的操作，以便将电光玻璃结构引入透明操作模式。 当电光面板切换到第一光学操作状态时，入射到电光面板的第一预定带宽内的电磁辐射从电光面板反射而不吸收。 当电光面板切换到第二光学操作状态时，入射在电光面板上的第二预定带宽内的电磁辐射通过电光面板传输而不吸收。 凭借本发明，玻璃窗结构能够提供隔热以及隐私功能。

    Method and system for producing color images with improved brightness and color characteristics on radiation absorptive surfaces
    7.
    发明授权
    Method and system for producing color images with improved brightness and color characteristics on radiation absorptive surfaces 失效
    用于产生具有改善的辐射吸收表面的亮度和颜色特性的彩色图像的方法和系统

    公开(公告)号：US06404464B1

    公开(公告)日：2002-06-11

    申请号：US08898658

    申请日：1997-07-22

    申请人： Sadeg M. Faris ,  Le Li

    发明人： Sadeg M. Faris ,  Le Li

    IPC分类号： G02F11335

    CPC分类号： G02F1/1335 ,  B82Y15/00 ,  C09D5/36 ,  C09D13/00 ,  C09K19/00 ,  E06B9/24 ,  E06B2009/2464 ,  F24S50/80 ,  G01D11/28 ,  G02B5/3016 ,  G02B27/0093 ,  G02F1/1334 ,  G02F1/133514 ,  G02F1/133536 ,  G02F1/13362 ,  G02F1/133621 ,  Y02E10/40

    摘要： Disclosed is an improved method and apparatus for forming color images on radiation absorptive surfaces, having improved brightness and color characteristics. The apparatus can be realized in various forms, including Xeroxgraphic and ink-jet printing equipment. In the illustrative embodiments, color images composed from polarization-encoded perspective images are produced for use in stereoscopic viewing full-color 3-D objects represented therein using a pair of electrically-passive circularly-polarizing eyeglasses. Super-white and additive-primary coloring media is used to form the polarization-encoded composite images so that full depth of color (e.g. thousands of color values) is imparted to the 3-D objects graphically represented therein. The coloring media utilized embodies both broadband and spectrally-tuned CLC-based microflakes having symmetrical reflection characteristics which provide for improved brightness and color uniformity characteristics.

    摘要翻译： 公开了一种用于在辐射吸收表面上形成彩色图像的改进的方法和装置，具有改善的亮度和颜色特性。 该设备可以以各种形式实现，包括Xeroxgraphic和喷墨打印设备。 在说明性实施例中，由偏振编码的透视图像组成的彩色图像是使用一对电动被动圆偏振眼镜在其中表示的立体观看全色3-D物体中产生的。 使用超白色和添加剂 - 初级着色介质来形成偏振编码的合成图像，使得全部深度的颜色（例如数千个颜色值）被赋予其中图形表示的3-D物体。 使用的着色介质体现了具有对称反射特性的宽带和频谱调谐的基于CLC的微片，其提供了改进的亮度和颜色均匀性特征。

    Circularly polarizing reflective material having super broad-band reflection and transmission characteristics and method of fabricating and using same in diverse applications
    8.
    发明授权
    Circularly polarizing reflective material having super broad-band reflection and transmission characteristics and method of fabricating and using same in diverse applications 失效
    具有超宽带反射和透射特性的圆偏振反射材料及其在各种应用中的制造和使用方法

    公开(公告)号：US6034753A

    公开(公告)日：2000-03-07

    申请号：US739467

    申请日：1996-10-29

    申请人： Le Li ,  Yingqiu Jiang ,  Sadeg M. Faris

    发明人： Le Li ,  Yingqiu Jiang ,  Sadeg M. Faris

    IPC分类号： C09B67/00 ,  C09D11/02 ,  C09D11/16 ,  C09K19/00 ,  C09K19/52 ,  E06B9/24 ,  F24J2/40 ,  G02B5/30 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/13

    CPC分类号： B82Y15/00 ,  C09B67/0098 ,  C09D11/037 ,  C09D11/17 ,  C09K19/00 ,  C09K19/52 ,  E06B9/24 ,  F24J2/407 ,  G02B5/3016 ,  E06B2009/2464 ,  G02F1/1334 ,  Y02E10/40

    摘要： Disclosed are super broadband circularly polarizing film materials and novels methods of fabricating and using the same. The circularly polarizing materials are made from polymerizable CLC film material having a cholesteric order, in which a liquid crystal material, such as a nematic liquid crystal material, is distributed in a non-linear fashion across the thickness of the film in a plurality of liquid crystal-rich and liquid crystal-depleted sites in the CLC polymer. The pitch of the helices of the CLC molecules in the polyermized CLC material varies in a non-linear (e.g. exponential) manner along the depth dimension (i.e. transverse to the surface) thereof. The resulting circularly polarizing materials have reflection and transmission characteristics over bands of operation approaching 2000 nm. Depending on the final spiral structure of the polymerizable CLC materials utilized, the CLC circularly polarizing materials reflect either left-handed or right-handed circularly polarized light. The CLC circularly polarizing materials of the present invention can be used in a variety of applications.

    摘要翻译： 公开了超宽带圆偏振膜材料及其制造和使用方法。 圆偏振材料由具有胆甾醇相的可聚合CLC膜材料制成，其中液晶材料如向列型液晶材料以非线性方式分布在多个液体中的膜的厚度上 CLC聚合物中晶体富集和液晶贫化的位点。 多孔CLC材料中的CLC分子的螺旋的间距沿其沿着深度尺寸（即横向于其表面）以非线性（例如指数）方式变化。 所得到的圆偏振材料在接近2000nm的操作带上具有反射和透射特性。 根据所使用的可聚合CLC材料的最终螺旋结构，CLC圆偏光材料反射左旋或右旋圆偏振光。 本发明的CLC圆偏振材料可用于各种应用。