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    • 2. 发明申请
    • MULTIPLE LIGHTGUIDE BACKLIGHT
    • 多功能背光
    • WO2005069066A1
    • 2005-07-28
    • PCT/US2004/034546
    • 2004-10-20
    • 3M INNOVATIVE PROPERTIES COMPANY
    • LAMB, David J.,KOTCHICK, Keith M.,O'NEILL, Mark B.,MARUSHIN, Patrick H.,GARDINER, Mark E.,EPSTEIN, Kenneth A.,WATSON, Philip E.,
    • G02F1/1335
    • G02B6/0076G02B6/0046G02B6/0068
    • The present disclosure is directed to backlighting systems, which include first and second lightguides, at least one light source optically connected to an edge of the first lightguide and at least one light source optically connected to an edge of the second lightguide for supplying light into their respective interiors. In the appropriate exemplary embodiments, the backlighting systems of the present disclosure include an extractor disposed at a surface of the second lightguide for diffuse extraction of light from the interior of the second lightguide. In such exemplary embodiments, at least a portion of the light supplied into the interior of the second lightguide and then diffusely extracted therefrom enters the interior of the first lightguide through a substantially optically clear surface. In some exemplary embodiments, the backlighting systems of the present disclosure include recycling enhancement structures, which may be attached to the first lightguide.
    • 本公开涉及背光系统,其包括第一和第二光导,光学连接到第一光导的边缘的至少一个光源和光学连接到第二光导的边缘的至少一个光源,用于将光提供给它们 各自的内饰。 在适当的示例性实施例中,本公开的背光系统包括设置在第二光导的表面处的用于从第二光导的内部扩散地提取光的提取器。 在这样的示例性实施例中,供应到第二光导内部然后从其中扩散地提取的光的至少一部分通过基本光学透明的表面进入第一光导的内部。 在一些示例性实施例中,本公开的背光系统包括可附接到第一光导的再循环增强结构。