PRODUCTION METHOD OF A LENTICULAR BODY FOR AUTOMOTIVE USE AND LIGHTED BADGE FOR MOTOR VEHICLES PROVIDED WITH SUCH LENTICULAR BODY

Production method of a lenticular body (3) for automotive use, which is provided with a first face (3a) and a second face (3b) opposite to each other, has one or more blind recesses and/or engravings (8) on said second face (3b), and has a polymeric-material, monolithic multilayer structure, comprising: a substantially transparent front layer (5), which forms said first face (3a); a substantially opaque rear layer (7), which forms said second face (3b) and is traversed by said one or more blind recesses and/or engravings (8); and a substantially transparent intermediate layer (6), which is interposed between said front layer (5) and said rear layer (7); wherein said intermediate layer (6) is made first in a substantially transparent, high-melting polymeric material and the front (5) and rear (7) layers are overmoulded directly over said intermediate layer (6).