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    • 8. 发明申请
    • AUXILIARY OPTICS FOR OUTDOOR LED VIDEO PANELS
    • 意向寻找户外LED视频跳线盘
    • WO0217628A3
    • 2002-07-25
    • PCT/AT0100275
    • 2001-08-24
    • SUNAMIC VISUALISIERUNG UND NETOTTO ALEXANDERSWATEK HARALDSWATEK ALEXANDERSWAROVSKI ALEXANDER
    • OTTO ALEXANDERSWATEK HARALDSWATEK ALEXANDERSWAROVSKI ALEXANDER
    • H04N5/72H04N5/74H04N9/30F21V8/00
    • G09F9/33G09F27/008H04N5/72H04N9/30H04N9/3141
    • A video panel is disclosed, fitted with LEDs of precise SMD construction, comprising an auxiliary optic for open-air display, which improves the visibility and contrast of the display in any incident sunlight conditions, whereby a mirroring and reflection of the sunlight is avoided in the observed region and at the same time a good light distribution is achieved. A light guide rod (3) is arranged directly in front of each LED (2), the cross-sectional direction and orientation of which, relative to the LED (2), is such that the total incident useful light is transmitted by total reflection on the walls (5) and directed into the observed region (B) and incident sunlight (7) cannot reach the LED (2), either due to multiple total reflection in the incident direction or by being returned outside the observed region (B), or by impinging the walls (5) of the light guide rods (3) at a steeper angle than the limiting angle for total reflection, escaping there and being absorbed by a surrounding housing (9). Further, interfering surface reflections are avoided by correspondingly angled light emitting surfaces (6).
    • 它提出了一种在表面贴装器件精确和用于具有光学头,能见度和图像的对比度在通过防止太阳光的反射和反射在观察区域改善任何阳光室外使用配有LED视频面板,和 同时提供了良好的光分布。 每个LED(2)被布置成紧接之前,截面相对于所述LED(2),其形状和方位被定尺寸,使得在一方面的总有用光进入由全反射所述壁(5)和(在观察区域,光导杆(3)B上重定向 克南)被偏转,而另一方面,入射的太阳射线(7)是不是在LED(2)达到,因为它们被引导回到任一后在入射方向或观察区域(B)以外的重复全反射或以比全反射的临界角更陡的角度 满足所述壁(5)的光导杆(3),并从周围的外壳(9)中被吸收那里出现。 此外,通过光出射面(6)的适当倾斜(A)避免干扰表面反射。