Signal lights for a motor vehicle lighting system

A signal light for a motor vehicle lighting system comprising:

• a fiber optic rod extending in a longitudinal direction, which has a light emitting surface extending along the longitudinal direction which is convex in the direction transverse to the longitudinal extension,
• wherein the fiber optic rod has a rear surface lying opposite the light emitting surface, wherein the rear surface has a row of deflection elements that extend along the longitudinal direction,
• wherein the fiber optic rod has two side walls, each side wall having a rear surface edge and a light emitting surface edge, wherein the fiber optic rod extends between the rear surface and the light emitting surface along the longitudinal direction, wherein the fiber optic rod has two rear walls, each of the rear walls has a deflection element edge, a rear wall edge and a side wall edge, and extends in the longitudinal direction between the row of deflection elements and the side walls, wherein the side wall edges of each of the two rear walls are further apart than the deflection element edges in a cross section of the fiber optic rod that is transverse to the longitudinal direction thereof, and wherein the rear walls form a recess in the rear surface;
• and
• a plurality of pairs of a reflector and a light source, wherein the pairs are arranged in a row along the longitudinal direction and configured to project light bundles through the fiber optic rod, wherein each of the light bundles has a main beam direction that is transverse to the longitudinal direction.