Patent ID: 8764257

Claim:
An optical device for a motor vehicle, such as a lighting or indicating device, said optical device comprising: at least two light sources associated with different predetermined photometric functions, said at least two light sources comprising at least a first light source and a second light source; and a light guide comprising an emergent end and arranged to guide the light generated by said first and second light sources towards said emergent end to provide said emergent end defining a common illuminating surface for light transmitted by said at least two sources the two photometric functions; said light guide having a first branch having an inlet face associated with said first light source and a second branch having an inlet face associated with said second light source, said inlet faces of said first and second branches being separated by a distance and being integrally formed and joined upstream of said emergent end so that light from said first light source and said second light source may be directed through said first and second branches, respectively, and exit said common illuminating surface of said emergent end of said light guide; and wherein all of said light from said first light source passes through said first branch and emerges from said common illuminating surface of said emergent end to perform a first photometric function and all of said light from said second light source passes through said second branch and emerges from said common illuminating surface of said emergent end to perform a second photometric function, said second photometric function being different from said first photometric function; wherein light from said first light source is of a first color to perform said first photometric function and light from said second light source is of a different color than said light from said first light source to provide said second photometric function; wherein at least one of said first or second photometric functions corresponds to a daytime light.