An edge-illuminated light housing includes a base, a shelf mounted on the base, and a housing mounted on the shelf, wherein a light source in the base illuminates edges of the base and/or housing by internal reflection of the light from the light source through the material of the shelf, housing and/or...http://www.google.es/patents/US20040207997?utm_source=gb-gplus-sharePatente US20040207997 - Edge-illuminating pyramid
