A lighting and signaling device having a lamp assembly is shown. The lamp assembly comprises a housing for supporting a head lamp and a primary light source for generating a primary light beam. The lamp assembly also includes a lens having at least one or a plurality of couplers coupled to or integrally formed in the lens. The at least one or plurality of couplers contributes light received from an at least one or a plurality of light sources to improve the light distribution pattern, such as a visibility angle of the primary light beam, which could be, for example, a signal.