Patent ID: 9046237
Filing Date: 2015-06-02
Classification: F21S

Abstract:
1. A light module for a motor vehicle headlamp ( 30 ) having an optical fiber configuration ( 10 ) with at least one first optical fiber branch ( 12 ) and one second optical fiber branch ( 14 ), wherein each of the two branches exhibits a light entry surface ( 12 . 1 , 14 . 1 ) and a light exit surface ( 12 . 2 , 14 . 2 ), wherein the light exit surfaces are each bordered by two narrow sides ( 12 . 3 , 12 . 4 , 14 . 3 , 14 . 4 ) and two long sides ( 12 . 5 , 12 . 6 , 14 . 5 , 14 . 6 ), and wherein the two branches are disposed such that a narrow side ( 12 . 4 ) of the first branch is disposed parallel and directly adjacent to a narrow side ( 14 . 3 ) of the light exit surface of the second branch, wherein the narrow sides of the light exit surfaces of the two branches are of the same length, while the long sides of the light exit surface of the second branch are longer than the long sides of the light exit surface of the second branch, and wherein each branch has two transport surfaces ( 12 . 7 , 12 . 8 , 14 . 7 , 14 . 8 ), which border an optical fiber volume extending between the light entry surface and the light exit surface of each branch, and on which, the light propagated in the optical fiber is subjected to a total internal reflection, and is bordered by the long sides of the light exit surface of the branch, wherein the transport surfaces exhibit surface norms ( 12 . 7 n , 12 . 8 n , 14 . 7 n , 14 . 8 n ), which exhibit a directional component, which faces more toward a first narrow side ( 12 . 3 , 14 . 3 ) of the two narrow sides of the branch than toward a second narrow side ( 12 . 4 , 14 . 4 ) of the two narrow sides of the branch, wherein this applies to a majority of all of the points on the transport surfaces onto which the light, coupled via the associated light entry surface, falls, and in that the narrow sides lying directly adjacent and parallel to one another are a second narrow side ( 12 . 4 ) of the first branch and a first narrow side ( 14 . 3 ) of the second branch.