MARKING CORRECTION METHOD FOR LASER MARKING SYSTEM

摘要

PURPOSE: A marking correction method for a laser marking system is provided to correct a marking error by photographing a marking object and using a prestored marking error. CONSTITUTION: A plurality of observing chips are assigned to each vision camera(11). Each vision camera corresponds to coordinates of laser markers(12). The first symbol is marked on each chip or positions corresponding to each chip, the first symbol is observed by using the corresponding vision camera, and one point of the symbol is defined as a reference point(13). The first symbol and the reference point are observed by using the corresponding vision camera and the second symbol is marked by using the reference point(14). A comparative point of the second symbol is defined by observing the second symbol(15). Marking errors of each cell are detected by using a position of the comparative point(16,17).