Light curtain manufacturing method for motor vehicle, involves overmolding printed film to form screen on base of film having optical coupling patterns, with help of material adhering to printed film

摘要

The method involves printing a film (21) having optical coupling patterns by a screen printing or heliography method. The printed film is overmolded to form a screen on a base of the film having the optical coupling patterns, with a help of a material adhering to the printed film, where the screen has a thickness of 2-8 millimeter. The printed film is thermoformed before overmolding of the printed film, where a thickness of the printed film is between 250-1000 micrometer.