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    • 5. 发明申请
    • RETROREFLECTORS FOR REMOTE DETECTION
    • 用于远程检测的重新检测器
    • US20120140224A1
    • 2012-06-07
    • US13297657
    • 2011-11-16
    • Michael SwitkesMordechai Rothschild
    • Michael SwitkesMordechai Rothschild
    • G01N21/55G01J4/00
    • G01N21/78G01N31/22
    • A detection system includes a retroreflector and a layer of material over the retroreflector, the material being subject to change in transmission with respect to an optical property of radiation, e.g. wavelength or polarization, with exposure to a phenomenon. The retroreflector and layer are illuminated from a radiation source of multiple aspects of the optical property. A sensor senses radiation retroreflected back through the layer. The retroreflector may, for example, be an array of or individual prisms or an array of or individual cat's eye microspheres. The layer of material above the retroreflector can include a colorimetric dye. In an embodiment, the retroreflector and layer are on the surface of a carrier that moves through a medium, e.g. a projectile or vehicle moving through the air. In a method of detecting a phenomenon, retroreflective elements are distributed in an array, as in the atmosphere or across a region of ground.
    • 检测系统包括后向反射器和后向反射器上的材料层,该材料相对于辐射的光学性质例如在透射中经历变化。 波长或极化,暴露于现象。 后向反射器和层从光学性质的多个方面的辐射源照射。 传感器感测通过该层向后反射的辐射。 后向反射器可以是例如阵列的或单独的棱镜或一组或单独的猫眼微球。 后向反射器上方的材料层可以包括比色染料。 在一个实施例中,后向反射器和层位于移动通过介质的载体的表面上,例如, 抛射物或车辆通过空气移动。 在检测现象的方法中,回射元件如大气中或跨地面分布在阵列中。
    • 6. 发明申请
    • Optical limiting using plasmonically enhancing nanoparticles
    • 使用等离子体增强纳米粒子的光学限制
    • US20110075263A1
    • 2011-03-31
    • US12586971
    • 2009-09-30
    • Vladimir LibermanMordechai Rothschild
    • Vladimir LibermanMordechai Rothschild
    • G02B5/22
    • G02B5/008B82Y20/00G02B5/22
    • There is provided an optical limiter device for protecting an object from incident light having a wavelength in the visible, infrared or ultraviolet spectrum. The device comprises a plurality of nanoparticles of a metallic material including free electrons that undergo collective oscillations when exposed to the incident light. The plurality of nanoparticles of the metallic material include a plurality of nanoparticles of a non-spherical particle geometry, which may include a geometry having a plurality of sharp protrusions on a spherical body. The metallic material may include gold, silver, aluminum, indium or copper. The device further comprises a structurally rigid transparent medium in which the plurality of nanoparticles of the metallic material are embedded; and a mechanical support mounting the transparent medium between the incident light and the object.
    • 提供了一种用于保护物体免受具有可见光,红外或紫外光谱波长的入射光的光限制器件。 该装置包括金属材料的多个纳米颗粒,包括当暴露于入射光时经历集体振荡的自由电子。 金属材料的多个纳米颗粒包括多个非球形颗粒几何形状的纳米颗粒,其可以包括在球体上具有多个尖锐突起的几何形状。 金属材料可以包括金,银,铝,铟或铜。 该装置还包括其中嵌入金属材料的多个纳米颗粒的结构刚性透明介质; 以及将透明介质安装在入​​射光和物体之间的机械支撑。
    • 8. 发明授权
    • Retroreflectors for remote detection
    • 用于远程检测的回射器
    • US09316593B2
    • 2016-04-19
    • US13297657
    • 2011-11-16
    • Michael SwitkesMordechai Rothschild
    • Michael SwitkesMordechai Rothschild
    • G01N21/00G01N21/78G01N31/22
    • G01N21/78G01N31/22
    • A detection system includes a retroreflector and a layer of material over the retroreflector, the material being subject to change in transmission with respect to an optical property of radiation, e.g. wavelength or polarization, with exposure to a phenomenon. The retroreflector and layer are illuminated from a radiation source of multiple aspects of the optical property. A sensor senses radiation retroreflected back through the layer. The retroreflector may, for example, be an array of or individual prisms or an array of or individual cat's eye microspheres. The layer of material above the retroreflector can include a colorimetric dye. In an embodiment, the retroreflector and layer are on the surface of a carrier that moves through a medium, e.g. a projectile or vehicle moving through the air. In a method of detecting a phenomenon, retroreflective elements are distributed in an array, as in the atmosphere or across a region of ground.
    • 检测系统包括后向反射器和后向反射器上的材料层,该材料相对于辐射的光学性质例如在透射中经历变化。 波长或极化,暴露于现象。 后向反射器和层从光学性质的多个方面的辐射源照射。 传感器感测通过该层向后反射的辐射。 后向反射器可以是例如阵列的或单独的棱镜或一组或单独的猫眼微球。 后向反射器上方的材料层可以包括比色染料。 在一个实施例中,后向反射器和层位于移动通过介质的载体的表面上,例如, 抛射物或车辆通过空气移动。 在检测现象的方法中,回射元件如大气中或跨地面分布在阵列中。