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    Photochromic article having two at least partially crossed photochromic-dichroic layers
    1.
    发明授权
    Photochromic article having two at least partially crossed photochromic-dichroic layers 有权
    具有两个至少部分交叉的光致变色二色性层的光致变色制品

    公开(公告)号：US08649081B1

    公开(公告)日：2014-02-11

    申请号：US13617621

    申请日：2012-09-14

    申请人： Rachael L. DeMeio ,  David Park ,  Anil Kumar ,  Truman Wilt ,  Peter C. Foller ,  Jiping Shao

    发明人： Rachael L. DeMeio ,  David Park ,  Anil Kumar ,  Truman Wilt ,  Peter C. Foller ,  Jiping Shao

    IPC分类号： G02F1/03

    CPC分类号： G02B5/23 ,  C09K19/60 ,  G02B5/3016 ,  G02C7/102 ,  G03C1/73

    摘要： Photochromic-dichroic articles are provided, which include a substrate, a first photochromic-dichroic layer over the substrate, and a second photochromic-dichroic layer over the first photochromic-dichroic layer. The first photochromic-dichroic layer includes a first photochromic-dichroic compound that is laterally aligned within the first photochromic-dichroic layer, and which defines a first polarization axis of the first photochromic-dichroic layer. The second photochromic-dichroic layer includes a second photochromic-dichroic compound that is laterally aligned within the second photochromic-dichroic layer, and which defines a second polarization axis of the second photochromic-dichroic layer. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°. The photochromic-dichroic articles can provide, for example, a combination of increased optical density and increased kinetics when exposed to a given amount of actinic radiation.

    摘要翻译： 提供了光致变色二色性物品，其包括基底，基底上的第一光致变色二色性层和第一光致变色二色性层上的第二光致变色二向色层。 第一光致变色二层包括第一光致变色二色性化合物，其在第一光致变色二色性层内横向排列，并且限定第一光致变色二色性层的第一偏振轴。 第二光致变色二层包括第二光致变色二色性化合物，该第二光致变色二色性化合物在第二光致变色二色性层内横向排列，并且限定第二光致变色二色性层的第二偏振轴。 第一偏振轴和第二偏振轴以大于0°且小于或等于90°的角度相对于彼此定向。 光致变色二色性制品可以提供例如当暴露于给定量的光化辐射时增加的光密度和增加的动力学的组合。

    Clear to circular polarizing photochromic devices
    5.
    发明授权
    Clear to circular polarizing photochromic devices 有权
    透明至圆偏振光致变色器件

    公开(公告)号：US08077373B2

    公开(公告)日：2011-12-13

    申请号：US12873491

    申请日：2010-09-01

    申请人： Anil Kumar ,  Peter C. Foller ,  Elizabeth Furar ,  Forrest R. Blackburn

    发明人： Anil Kumar ,  Peter C. Foller ,  Elizabeth Furar ,  Forrest R. Blackburn

    IPC分类号： G02F1/03

    CPC分类号： C09B57/00 ,  B29D11/00009 ,  B29D11/00644 ,  B29D11/00653 ,  C09B57/02 ,  C09K19/60 ,  G02B5/23 ,  G02B5/3041 ,  G02B5/3083 ,  G02B27/288 ,  G02C7/12 ,  G02F1/0126 ,  G02F1/1335

    摘要： The present invention provides composite optical elements including a photochromic linear polarizing element and a birefringent layer such that composite optical element circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element is formed from (i) an at least partially ordered polymeric sheet; and (ii) a reversible photochromic-dichroic material that is at least partially aligned with the polymeric sheet and has an average absorption ratio of at least 1.5 in the activated state. The birefringent layer includes a polymeric coating or a polymeric sheet connected to the photochromic linear polarizing element.

    摘要翻译： 本发明提供了包括光致变色线性偏振元件和双折射层的复合光学元件，使得复合光学元件使透射的辐射循环或椭圆偏振。 光致变色线偏振元件由（i）至少部分排列的聚合物片材形成; 和（ii）与聚合物片材至少部分对准并且在活化状态下具有至少1.5的平均吸收比的可逆光致变色二色性材料。 双折射层包括聚合物涂层或连接到光致变色线性偏振元件的聚合物片材。