VORRICHTUNG ZUM STRICHFÖRMIGEN BELEUCHTEN EINER LAUFENDEN WARENBAHN

摘要

The apparatus (1) has a tubular reflector (5) and a light source (4) e.g. laser, to emit light. A portion of the light emitted by the source is reflected by the reflector towards a product web. The reflector has a region facing the web and having a light exit slit (7). The reflector has an observation slit (8) for the exit of light that is reflected by the web, where the slits are opposite to each other. The slits completely penetrate the reflector. The reflector with end regions and light exit slit is bridged by the web.