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    • 3. 发明申请
    • ILLUMINATING STRUCTURE AND OPTICAL STRUCTURE
    • 照明结构和光学结构
    • WO2008107584A3
    • 2008-11-06
    • PCT/FR2008050037
    • 2008-01-09
    • SAINT GOBAINSCHIAVONI MICHELEMARANDON FRANCKGAYOUT PATRICK
    • SCHIAVONI MICHELEMARANDON FRANCKGAYOUT PATRICK
    • G02B5/02G02F1/13357H01J31/30
    • G02B5/0278G02B5/0242G02B5/0294G02F1/133604G02F1/133606G02F1/133611H01J61/305H01J61/34
    • The invention relates to an illuminating structure (1) comprising a plurality of light sources (11) lying in a plane, and a diffusing structure comprising a transparent substrate (20) having first and second main faces, the substrate being opposite the light sources and being at a distance of less than 6 mm from the sources, a diffusing layer (22) on one of the main faces of said substrate, the diffusing layer, called inhomogeneous layer, having a variable thickness and/or a variable covering density. The invention also relates to an optical structure (20) having a diffusing structure intended to homogenize a plurality of light sources lying in a plane, which diffusing structure comprises the transparent substrate (21) and the inhomogeneous diffusing layer (22), and a stack of optical elements (23) on one of the faces of the substrate and chosen from: one or more diffusing films; a diffusing film and an element for redirecting the light towards the normal to the substrate and a diffusing film; or a diffusing film and a reflective polarizer.
    • 本发明涉及包括位于平面中的多个光源(11)的照明结构(1)以及包括具有第一和第二主面的透明基板(20)的漫射结构,基板与光源相对,并且 与所述源距离小于6mm,在所述衬底的一个主面上的漫射层(22),漫射层(称为非均匀层),具有可变厚度和/或可变覆盖密度。 本发明还涉及具有用于使位于平面中的多个光源均匀化的漫射结构的光学结构(20),所述漫射结构包括透明基板(21)和不均匀漫射层(22),并且堆叠 光学元件(23)在衬底的一个面上并且选自:一个或多个漫射膜; 漫射膜和用于将光重定向到基板的法线的元件和漫射膜; 或者漫射膜和反射偏振器。