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    HYBRID POLARIZER
    22.
    发明申请
    HYBRID POLARIZER 有权
    混合极化器

    公开(公告)号：US20110043732A1

    公开(公告)日：2011-02-24

    申请号：US12916838

    申请日：2010-11-01

    申请人： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    发明人： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    IPC分类号： G02F1/1335 ,  G02B5/30

    CPC分类号： G02B5/3041 ,  G02B5/3083 ,  G02B27/281 ,  G02F1/133536 ,  G02F2001/133545

    摘要： A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.

    摘要翻译： 混合偏振器包括具有第一主表面和第二主表面的吸收元件。 混合偏振器还包括设置在吸收元件的第一主表面上的第一双折射反射偏振器，第一双折射反射偏振器具有第一通过轴和第一块轴。 混合偏振器还包括设置在吸收元件的第二主表面上的第二双折射反射偏振器，第二反射偏振器具有第二通过轴和第二块轴。

    Multicomponent optical body
    24.
    发明授权
    Multicomponent optical body 失效
    多组分光学体

    公开(公告)号：US06207260B1

    公开(公告)日：2001-03-27

    申请号：US09006118

    申请日：1998-01-13

    申请人： John A. Wheatley ,  Timothy J. Nevitt ,  William W. Merrill ,  Michael F. Weber

    发明人： John A. Wheatley ,  Timothy J. Nevitt ,  William W. Merrill ,  Michael F. Weber

    IPC分类号： B32B702

    CPC分类号： G02B5/282 ,  G02B5/305 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/26

    摘要： Multilayer polymeric films and other optical bodies are provided. The films, which have at least three layers of different composition in the optical repeating unit, reflect light in a first portion of the spectrum while transmitting light in a second portion of the spectrum, exhibit improved reflectivities at oblique angles, and can be designed to suppress one or more higher order harmonics of the main reflection band.

    摘要翻译： 提供多层聚合物膜和其他光学体。 在光学重复单元中具有至少三层不同成分的膜在光谱的第二部分中透射光的同时在光谱的第一部分中反射光，在倾斜角度表现出改善的反射率，并且可以设计成 抑制主反射带的一个或多个更高次谐波。

    POLARIZATION SENSITIVE FRONT PROJECTION SCREEN
    30.
    发明申请
    POLARIZATION SENSITIVE FRONT PROJECTION SCREEN 审中-公开
    极化敏感前投影屏幕

    公开(公告)号：US20120212812A1

    公开(公告)日：2012-08-23

    申请号：US13504339

    申请日：2010-11-10

    申请人： Michael F. Weber ,  Yufeng Liu ,  Timothy J. Nevitt

    发明人： Michael F. Weber ,  Yufeng Liu ,  Timothy J. Nevitt

    IPC分类号： G03B21/60

    CPC分类号： G03B21/604

    摘要： A projection system is disclosed, in which a screen may have improved rejection of ambient light by having a high reflectivity at low angles of incidence for a polarization parallel to that of the projector, a low reflectivity at high angles of incidence for a polarization parallel to that of the projector, and a low reflectivity at both low and high angles of incidence for a polarization perpendicular to that of the projector. In some embodiments, for p-polarized light polarized parallel to the projector, the power reflectivity is high at low angles of incidence and decreases to a low value at high angles of incidence. In some embodiments, for p-polarized light polarized perpendicular to the projector, the power reflectivity is low at low angles of incidence. In some embodiments, for s-polarized light polarized perpendicular to the projector, the power reflectivity remains low at all angles of incidence. In some embodiments, the screen includes a thin film structure that has alternating quarter-wave layers of isotropic and birefringent materials, which are refractive-index-matched for light polarized perpendicular to the projector, which form a high reflector at normal incidence for light polarized parallel to the projector, and which exhibit Brewster's angle effects for p-polarized light polarized parallel to the projector at high angles of incidence. The Brewster's angle effect may be reached by use of a light-scattering layer that increases the effective incident refractive index.

    摘要翻译： 公开了一种投影系统，其中屏幕可以通过在平行于投影仪的偏振的低入射角具有高反射率而具有改善的环境光的抑制，在与入射角平行的偏振的高入射角处的低反射率 投影仪的偏振角以及垂直于投影仪的偏振的低和高入射角的低反射率。 在一些实施例中，对于平行于投影仪偏振的p偏振光，在低入射角下的功率反射率高，并且在高入射角下降低到低值。 在一些实施例中，对于垂直于投影仪偏振的p偏振光，功率反射率在低入射角下较低。 在一些实施例中，对于垂直于投影仪偏振的s偏振光，功率反射率在所有入射角保持较低。 在一些实施例中，屏幕包括薄膜结构，其具有交替的各向同性和双折射材料的四分之一波长层，其对于垂直于投影仪偏振的光进行折射率匹配，其在垂直入射时形成用于光偏振的正反射器 平行于投影仪，并且以高入射角度平行于投影仪偏振的p偏振光表现出布鲁斯特的角度效应。 布鲁斯特的角度效应可以通过使用增加有效入射折射率的光散射层达到。