Bragg reflector
    1.
    发明申请
    Bragg reflector 失效
    布拉格反射器

    公开(公告)号:US20050128581A1

    公开(公告)日:2005-06-16

    申请号:US10984537

    申请日:2004-11-08

    IPC分类号: G02B1/10 G03B21/00 G03B21/56

    CPC分类号: G03B21/00

    摘要: A reflector comprises a core and a first dielectric mirror formed over at least a portion of the core to reflect light having a preselected wavelength. The reflector may comprise a plurality of dielectric mirrors formed concentrically over the first dielectric mirror to reflect light having the preselected wavelength. The multiple dielectric mirrors may have different diffraction indices. A layer of such reflectors deposited onto the reflective surface of a projection screen may enhance the reflective selectivity of the screen to the preselected wavelength. Reflectors formed to reflect different wavelengths may be deposited onto the reflective surface to enhance selectivity to the different wavelengths and minimize reflection of ambient light.

    摘要翻译: 反射器包括芯和形成在芯的至少一部分上以反射具有预选波长的光的第一介电镜。 反射器可以包括在第一电介质镜上同心地形成的多个电介质镜,以反射具有预选波长的光。 多个电介质反射镜可以具有不同的衍射指数。 沉积在投影屏幕的反射表面上的这种反射器层可以增强屏幕对预选波长的反射选择性。 形成以反射不同波长的反射器可以沉积到反射表面上以增强对不同波长的选择性并使环境光的反射最小化。