Patent ID: 7387418

Claim:
Illumination system for displays in vehicles, comprising a base ( 3 ) on which at least a first light source ( 4 ) is provided to emit light, a cover ( 6 ), which is provided at a distance from the base ( 3 ) on the side of the base with the first light source ( 4 ) and has a visible side ( 9 ), at least one light guide ( 7 ), which is disposed in such a way that light emitted by the first light source ( 4 ) is launched into the light guide and which extends through the cover ( 6 ) up to the visible side ( 9 ), wherein the light guide ( 7 ) and the cover ( 6 ) include two different transparent or translucent materials and the light guide is formed integrally with the cover, whereby a barrier layer ( 11 ) is formed in the area between the light guide ( 7 ) and the cover ( 6 ) to minimize stray light; and wherein the illumination system further comprises at least a second light source ( 18 ) on the base ( 3 ) on the side of the first light source ( 4 ) and, for shielding the light guide ( 7 ), a light barrier ( 8 ) surrounding the light guide between the cover and the base, whereby the first light source ( 4 ) serves for functional illumination and the second light source ( 18 ) serves as pilot illumination for backlighting of symbols ( 17 ) on the visible side of the cover.