Diffusing light polarizers
    1.
    发明授权
    Diffusing light polarizers 失效
    扩散光极化器

    公开(公告)号:US3561841A

    公开(公告)日:1971-02-09

    申请号:US3561841D

    申请日:1968-09-16

    Applicant: POLAROID CORP

    CPC classification number: G02B5/3033 G02B5/3008

    Abstract: Highly efficient diffusing light polarizes of a new type are described. The new diffusing light polarizes comprise an oriented suspension of doubly refracting, i.e., birefringent, crystallites of an organic high polymer within an amorphous, noncrystalline, substantially uniaxial, birefringent film of said polymer. These diffusing light polarizes transmit of specular beam and a diffuse beam polarized in the same plane.

    Device for determining the concentration of a substance in a fluid
    4.
    发明授权
    Device for determining the concentration of a substance in a fluid 失效
    用于确定流体中物质浓度的装置

    公开(公告)号:US3915647A

    公开(公告)日:1975-10-28

    申请号:US49805874

    申请日:1974-08-16

    Applicant: POLAROID CORP

    Inventor: WRIGHT RICHARD F

    CPC classification number: C12Q1/54 C12Q1/48 C12Q1/58 G01N33/525

    Abstract: A diagnostic test device which includes a cavity adapted to receive a fluid containing a substance to be tested, reagents adapted to contact said fluid and react with said substance to form a second substance capable of providing a visual determination of the presence and/or concentration of said first substance. In a preferred embodiment, chromatographic methods are employed to provide visual indication of the second substance.

    Abstract translation: 一种诊断测试装置,其包括适于接收含有待测试物质的流体的腔体,适合于接触所述流体并与所述物质反应以形成第二物质的试剂,所述第二物质能够提供对所述物质的存在和/或浓度的视觉测定 说第一物质。 在优选的实施方案中,采用色谱方法来提供第二物质的视觉指示。

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