Patent ID: 8288700

Claim:
An installation for marking transparent or translucent objects leaving a forming machine ( 3 ), the objects successively travelling in translation in front of a marking station ( 7 ) comprising apparatus ( 9 ) to produce a laser beam ( 11 ) to ensure marking of the objects, characterized in that the installation comprises: means ( 13 ) to determine the position of each of the objects in at least one direction (z) transverse to the direction of travel (D) of the objects, and means ( 13 ) being positioned upstream of the marking station relative to the direction of travel, means ( 12 ) to move the focusing plane (P) of the laser beam, in a transverse direction (z) relative to the direction of travel (D), means ( 21 ) to guide the moving means ( 12 ) linked to the determining means which, in relation to the position of each object to be marked, allow the focusing plane (P) of the laser beam to be adapted to optimize marking of the objects by the laser beam ( 11 ).