METHOD FOR PRODUCING A RETROREFLECTIVE AUTOMOBILE LICENSE PLATE, RETROREFLECTIVE AUTOMOBILE LICENSE PLATE, AND DEVICE FOR CARRYING OUT THE METHOD

摘要

The invention relates to an automobile license plate (1) having a laminar-extended sign blank (10), wherein a visually perceptible, laminar-extended security structure (30) is introduced in the surface of the front side of the sign blank, and wherein the introduced security structure (30) displays a color effect based on optical interference, which is based on laminar-extended, regular, elevated or recessed structures in the surface of the sign blank (10). The invention further relates to a method for producing such an automobile license plate (1), and to a production device (100) suitable for carrying out the method.