Patent ID: 8331746

Claim:
An illumination unit comprising a luminescence diode chip mounted on a chip carrier and comprising an optical waveguide, wherein the optical waveguide is joined together from first and second separate parts and the luminescence diode chip is directly connected to and encapsulated by the first separate part of the optical waveguide, wherein the first separate part of the optical waveguide that encapsulates the luminescence diode chip has side areas that extend in a light guiding direction of the optical waveguide, and wherein said side areas are completely reflective, wherein connecting areas of the first and second separate parts of the optical waveguide via which the latter are connected to one another have an alignment structure by means of which they are aligned with one another, and wherein the alignment structure has a step-like structure, and wherein the step-like structure is asymmetric with respect to a longitudinal axis of the illumination unit.