System and device for the optical inspection of glass panels

A system for the optical inspection of glass panels, with a conveying device for moving the glass panel, and with a first inspection module, which includes an illumination device and a camera for illuminating and photographing the glass panel, and which is connected with a first evaluation module for evaluating the photographs of the glass panel, characterized by at least a second inspection module with an illumination device and a camera for illuminating and photographing the glass panel, which is connected with a second evaluation module for evaluating the photographs of the glass panel, the illumination devices or the cameras of the first inspection module and the second inspection module having different designs or being located in different places relative to the glass panel, which is moved past the inspection modules via the conveying device in a conveying direction;

• wherein the inspection modules are designed as separate units that are located one after the other along the conveying direction and wherein one of the inspection modules operates as a scratch detection system, wherein the scratch detection system is configured such that the illumination device for illuminating the glass panel therein generates light that is both parallel in a direction transverse to a scan line included on a material surface of the glass panel and diffuse or quasi-diffuse in a direction aligned with the scan line, and wherein a central evaluation unit compiles results derived from evaluation of the photographs of the glass panel by the first and second evaluation units.