发明名称 Light guide for illuminating the display or keyboard of a portable communication device
摘要 <p>A communication unit including a light guide for illuminate the display including a substantially transparent plate-formed element with reception means for receiving light from respective light sources and to guiding the light into the transparent plate-formed element of the light guide. The reception means includes light in-coupling surfaces facing towards respective light sources and being substantially parallel with the main surface of the light guide, and means, a lens and a diffuser, for dispersing the light substantially parallel with the main surface of the light guide to illuminate the display. The light guide has also means for illuminate the keyboard. These means includes that the keyholes have chamfered surfaces for reflecting the light in the light guide perpendicular to the surface of the light guide onto the keyboard. The light guide also incorporates a dome sheet attached to the light guide including a reflector sheet, flexibly attaching the keyboard to the light guide. &lt;IMAGE&gt;</p>
申请公布号 EP1094482(A2) 申请公布日期 2001.04.25
申请号 EP20000309225 申请日期 2000.10.19
申请人 NOKIA CORPORATION 发明人 MESSEL, ALTE
分类号 H01H13/70;H04M1/22;H04M1/725;(IPC1-7):H01H13/70 主分类号 H01H13/70
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