Polarizing beam splitter
    1.
    发明申请
    Polarizing beam splitter 有权
    极化分束器

    公开(公告)号:US20050001983A1

    公开(公告)日:2005-01-06

    申请号:US10637164

    申请日:2003-08-08

    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 at 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。