LIGHT PIPE TEXTURING INTENSITY GRADIENT FOR ELECTRONIC DEVICES

摘要

The invention is an illumination system for a logo (20) on the front of an electronic device (1) such as a set top box. The logo (20) is part of a light pipe (23) and the logo (20) is illuminated by projecting light on the front surface (24) of the light pipe (23). The front surface (24) is textured or tinted to evenly distribute the light to a viewer. The light source (11) for illuminating the logo (20) is positioned at an entrance end of the light pipe (23) as shown in the figure. The shape of the light pipe (23) is substantially uniform throughout the length of the light pipe (23) and the shape is substantially the shape of the logo (20). The light pipe (23) can have a cut away region near the front surface to create localized lighting contrasts.