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    • 10. 发明授权
    • Polarization beam splitters for image projection apparatus
    • 用于图像投影装置的偏振分束器
    • US08888290B2
    • 2014-11-18
    • US13443896
    • 2012-04-11
    • Ying Liu
    • Ying Liu
    • G03B21/26G06F3/042G02B27/12G03B21/20G03B33/12G03B35/26H04N9/31
    • G02B27/126G03B21/2013G03B33/12G03B35/26H04N9/3167
    • A polarization beam splitter includes at least six prisms assembled together to form a single solid components. At least one diagonal interface is formed by a combination of two or more prism surfaces. The solid polarization beam splitter component has at least four light entrance/exit surfaces with at least one of the light entrance/exit surfaces including a step. At least one of the prisms has a non-triangular cross-sectional shape. At least one surface of a prism that forms a portion of the diagonal interface has a polarization beam splitting material disposed thereon resulting in a diagonal interface that includes a polarization beam splitting material. The polarization beam splitter can be incorporated into various image projection apparatus including 2D, multiple image, and 3D projection apparatuses.
    • 偏振分束器包括组装在一起以形成单个固体组分的至少六个棱镜。 至少一个对角界面由两个或更多个棱镜表面的组合形成。 固体偏振分束器部件具有至少四个光入射/出射表面,其中至少一个光入射/出射表面包括台阶。 至少一个棱镜具有非三角形横截面形状。 形成对角线界面的一部分的棱镜的至少一个表面具有设置在其上的偏振分束材料,产生包括偏振分束材料的对角界面。 偏振分束器可以并入包括2D,多图像和3D投影设备的各种图像投影设备中。