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1. 发明授权

US06893135B2 Light guides suitable for illuminated displays 有权
标题翻译：适用于照明显示屏的导光板
公开(公告)号：US06893135B2
公开(公告)日：2005-05-17
申请号：US10221564
申请日：2001-02-14
申请人： John C. Wright , Andrew M. Hicks , Bruno Mueller
发明人： John C. Wright , Andrew M. Hicks , Bruno Mueller
IPC分类号： F21V8/00 , G02B6/00 , F21V7/04
CPC分类号： G02B6/004 , G02B6/005 , G02B6/0053 , G02B6/0055 , G02B6/0071
摘要： A light guide (1) comprises a housing (3) defining a light-guiding optical cavity having first and second opposed major faces (5, 6), and a light source (11) arranged to direct light into the cavity from one end, to be guided between the major faces. The first major face (5) comprises a window through which light can be emitted from the optical cavity to be used, for example, for illuminating a graphic display. To improve the light distribution across that first major face (5), the second major face (6) comprises a sheet material (23) having a specularly-reflecting surface (24) that faces into the optical cavity and has diffusely-reflecting light-extraction elements (27) applied thereto in a predetermined configuration for causing light to be emitted from the optical cavity through the said window.
摘要翻译：导光体（1）包括限定具有第一和第二相对主面（5,6）的导光光学腔的壳体（3）和布置成将光从一端引导到空腔中的光源（11）在主要面孔之间引导。第一主面（5）包括窗口，通过该窗口可以从所使用的光学腔发射光，例如用于照亮图形显示器。为了改善穿过该第一主面（5）的光分布，第二主面（6）包括片材（23），其具有面向光腔的镜面反射表面（24），并且具有漫反射光提取元件（27）以预定的构造施加到其上，用于使光从光腔通过所述窗口发射。

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