METHOD AND DEVICE FOR DETECTING DEFECTS IN COILS OF BRITTLE OR FRACTURE-PRONE MATERIAL WHICH IS AT LEAST PARTLY TRANSPARENT, AND USE OF SAID METHOD AND DEVICE

摘要

The invention relates to a method and a device (8) for detecting defects (10) in coils (1) such as rollable ultra-thin glass, rollable glass films, rollable laminated ultra-thin glasses or films, rollable solar cells and rollable organic light-emitting diodes (OLEDs).