| abstract |
An illuminable device comprising at least one light source, a lower light-scattering cover which is assigned to the light source and is composed of coloured (DIN 5033, part 1) plastic which, at the wavelength of the relative energy maximum of the light source, has a transmission (DIN 5036) of at least 35% and a reflection (DIN 5036) of at least 15%, and an upper cover composed of a grey, transparently coloured plastic which, at the wavelength of the relative energy maximum of the light source, has a transmission of 5 to 20%, and its use as an advertising panel or information panel is described. |