The Art. SQ scans for and detects various types of surface defects to the entire glass piece faces in real time. All defects that are detected such as inclusions, fingerprints, scratches etc. are immediately notified to the operator via an alarm and PC display. The operator is quickly directed to the defect which can be prioritised based on classification. All defects detected can be archived for post-production analysis which includes pictures, processing time and corrective action. This quality control station is fully integrated into the IGU lines synchronisation, taking care of any necessary upstream or downstream production control.