Bobst Mex Sa

Pablo Antolinez

Francis Pilloud

Olivier Porret

Lorenzo Piccardi

Mauro Truscello

This invention is about an imaging system that uses conventional cameras and a single laser line to perform quality control at the output of a converting machine or a press. The system uses several cameras distributed over the width of the printed sheets. Thanks to the laser line, it can reconstruct the complete image of the printed matter even when the sheets are not perfectly flat or at varying height, compensating geometric as well as photometric distortions. The use of conventional cameras results in a cost effective system.

Multi-camera imaging system using a laser line

A quality control station () for a sheet element processing machine, the station having at least one camera () arranged for capturing images of sheet elements () transported through the quality control station (), and further having a camera calibration system (). The camera calibration system () having a target holder () for holding an optical target (), and a drive () for the target holder (). The drive () is adapted for displacing the target holder () between a rest position, in which it is outside of the viewing area () of the camera (), and a calibration position in which it is arranged in the viewing area () of the camera ().

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Ferney Voltaire, France

Pablo Antolinez