Birefringent interference polarizer
    1.
    发明授权
    Birefringent interference polarizer 失效
    双折射干涉偏振器

    公开(公告)号:US5612820A

    公开(公告)日:1997-03-18

    申请号:US452832

    申请日:1995-05-30

    摘要: A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting light of other wavelengths. The polarizer includes multiple alternating oriented layers of at least first and second polymeric materials having respective nonzero stress optical coefficients which are sufficiently different to produce a refractive index mismatch between the first and second polymeric materials in a first plane which is different from the refractive index mismatch between the first and second polymeric materials in a second plane normal to the first plane. The refractive index mismatch in the first plane is preferably at least 0.03.

    摘要翻译: 提供了可以使用建立的共挤出技术由容易获得的材料制造的双折射干涉偏振器。 偏振器的光吸收水平接近零,并且可以被制造为偏振和反射特定波长的光,同时透射其他波长的光。 偏振器包括至少第一和第二聚合物材料的多个交替取向层,其具有相应的非零应力光学系数,其非常不同,以在第一平面中产生不同于折射率不匹配的第一和第二聚合物材料之间的折射率失配 在与第一平面垂直的第二平面中的第一和第二聚合物材料之间。 第一平面中的折射率失配优选为0.03以上。

    Battery separator
    3.
    发明授权
    Battery separator 失效
    电池分离器

    公开(公告)号:US5362581A

    公开(公告)日:1994-11-08

    申请号:US41085

    申请日:1993-04-01

    IPC分类号: H01M2/14 H01M2/16

    CPC分类号: H01M2/14 H01M2/1653

    摘要: A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a polycarbonate polymer and a filler or a polycarbonate and a structure enhancing agent, said sheet product having a porous sheet embedded within said mixture and between the first and second major surfaces. The porosity of the sheet product is at least about 50 volume percent composed of pores such that the nominal pore diameter increases incrementally from each major surface towards the interior central portion of the sheet product's thickness.

    摘要翻译: 一种由聚碳酸酯聚合物和填料或聚碳酸酯和结构增强剂的均匀混合物形成的具有第一和第二主表面的厚度小于约50密耳的微孔板产品的电池隔板,所述片材产品具有 嵌入所述混合物内并在第一和第二主表面之间的多孔片。 片材产品的孔隙率为由孔组成的至少约50体积%,使得标称孔径从片材产品厚度的每个主表面向内部中心部分逐渐增加。

    Birefringent interference polarizer
    4.
    发明授权
    Birefringent interference polarizer 失效
    双折射干涉偏振器

    公开(公告)号:US5872653A

    公开(公告)日:1999-02-16

    申请号:US768525

    申请日:1996-12-18

    摘要: A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting light of other wavelengths. The polarizer includes multiple alternating oriented layers of at least first and second polymeric materials having respective nonzero stress optical coefficients which are sufficiently different to produce a refractive index mismatch between the first and second polymeric materials in a first plane which is different from the refractive index mismatch between the first and second polymeric materials in a second plane normal to the first plane. The refractive index mismatch in the first plane is preferably at least 0.03.

    摘要翻译: 提供了可以使用建立的共挤出技术由容易获得的材料制造的双折射干涉偏振器。 偏振器的光吸收水平接近零,并且可以被制造为偏振和反射特定波长的光,同时透射其他波长的光。 偏振器包括至少第一和第二聚合物材料的多个交替取向层,其具有相应的非零应力光学系数,其非常不同,以在第一平面中产生不同于折射率不匹配的第一和第二聚合物材料之间的折射率失配 在与第一平面垂直的第二平面中的第一和第二聚合物材料之间。 第一平面中的折射率失配优选为0.03以上。

    Birefringent interference polarization
    5.
    发明授权
    Birefringent interference polarization 失效
    双折射干涉极化

    公开(公告)号:US06583930B1

    公开(公告)日:2003-06-24

    申请号:US09220210

    申请日:1998-12-23

    IPC分类号: G02B530

    摘要: A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting light of other wavelengths. The polarizer includes multiple alternating oriented layers of at least first and second polymeric materials having respective nonzero stress optical coefficients which are sufficiently different to produce a refractive index mismatch between the first and second polymeric materials in a first plane which is different from the refractive index mismatch between the first and second polymeric materials in a second plane normal to the first plane. The refractive index mismatch in the first plane is preferably at least 0.03.

    摘要翻译: 提供了可以使用建立的共挤出技术由容易获得的材料制造的双折射干涉偏振器。 偏振器的光吸收水平接近零,并且可以被制造为偏振和反射特定波长的光,同时透射其他波长的光。 偏振器包括至少第一和第二聚合物材料的多个交替取向层,其具有相应的非零应力光学系数,其非常不同,以在第一平面中产生不同于折射率不匹配的第一和第二聚合物材料之间的折射率失配 在与第一平面垂直的第二平面中的第一和第二聚合物材料之间。 第一平面中的折射率失配优选为0.03以上。