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58 条记录 (耗时 0.022 秒)

    Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter
    1.
    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。

    Reflective liquid crystal strain gauge with aspected particles and polarization-sensitive devices
    7.
    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。

    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：US06181395B2

    公开(公告)日：2001-01-30

    申请号：US09366385

    申请日：1999-08-03

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

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

    IPC分类号： G02F11335

    CPC分类号： B82Y15/00 ,  C09B67/0098 ,  C09D11/037 ,  C09D11/17 ,  C09K19/00 ,  C09K19/52 ,  E06B9/24 ,  E06B2009/2464 ,  F24S50/80 ,  G02B5/3016 ,  G02F1/1334 ,  Y02E10/40

    摘要： Disclosed are super broadband circularly polarizing film materials and novel 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 polymeriable 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的新方法。 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圆偏振材料反映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。

    Coloring media having improved brightness and color characteristics
    10.
    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.