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    Polarizing beam splitter
    1.
    发明授权
    Polarizing beam splitter 有权
    极化分束器

    公开(公告)号：US06609795B2

    公开(公告)日：2003-08-26

    申请号：US09878575

    申请日：2001-06-11

    申请人： Michael F. Weber ,  Charles L. Bruzzone ,  Peter D. Condo ,  Kevin M. Hamer ,  Timothy J. Hebrink ,  William W. Merrill

    发明人： Michael F. Weber ,  Charles L. Bruzzone ,  Peter D. Condo ,  Kevin M. Hamer ,  Timothy J. Hebrink ,  William W. Merrill

    IPC分类号： G03B2100

    CPC分类号： G02B27/283 ,  Y10T428/24942

    摘要： The present invention provides a unique polarizing beam splitter (PBS) that is suitable for use in projection systems and displays. The PBS contains at least one prism having at least one major surface and having a refractive index of at least about 1.6 and a birefringent film disposed on the major surface of the prism. The birefringent film is a multi-layer film having layers of at least a first material and a second material. After uniaxial stretching, the film exhibits a refractive index difference of less than about 0.15 units in the stretched direction.

    摘要翻译： 本发明提供了适用于投影系统和显示器的独特的偏振分束器（PBS）。 PBS包含至少一个具有至少一个主表面并具有至少约1.6的折射率的棱镜和设置在棱镜的主表面上的双折射膜。 双折射膜是具有至少第一材料和第二材料层的多层膜。 在单轴拉伸之后，膜在拉伸方向上的折射率差小于约0.15单位。

    Optical bodies made with a birefringent polymer
    2.
    发明授权
    Optical bodies made with a birefringent polymer 有权
    用双折射聚合物制成的光学体

    公开(公告)号：US06449093B2

    公开(公告)日：2002-09-10

    申请号：US09416462

    申请日：1999-10-12

    申请人： Timothy J. Hebrink ,  Peter D. Condo ,  William W. Merrill

    发明人： Timothy J. Hebrink ,  Peter D. Condo ,  William W. Merrill

    IPC分类号： G02B530

    CPC分类号： B32B27/08 ,  B32B27/36 ,  B32B2307/42 ,  B32B2367/00 ,  B32B2551/00 ,  G02B5/0841 ,  G02B5/0866 ,  G02B5/305 ,  G02B5/3083 ,  Y10T428/24942 ,  Y10T428/2495

    摘要： A optical body has at least two polymeric materials forming a reflective interface for at least one polarization of light. One optical body is a multilayer optical film that includes birefringent first optical layers and second optical layers interleaved with the first optical layers. Each first optical layer is formed using a polymer, such as a copolymer of polyethylene naphthalate. The second optical layers are formed so that they have a lower in-plane birefringence than the first optical layers for 632.8 nm light. Optical bodies can be used as, for example, polarizers and mirrors. The optical bodies can be formed using polymers that provide better index matching and are more easily protected from UV light without coloring the optical body.

    摘要翻译： 光学体具有形成用于至少一种光的偏振的反射界面的至少两种聚合材料。 一个光学体是包含与第一光学层交错的双折射第一光学层和第二光学层的多层光学膜。 每个第一光学层使用聚合物如聚萘二甲酸乙二醇酯的共聚物形成。 第二光学层被形成为使得它们具有比用于632.8nm的光的第一光学层更低的面内双折射。 光学体可用作例如偏振器和反射镜。 可以使用提供更好的折射率匹配的聚合物形成光学体，并且更容易地防止UV光而不着色光学体。