VORRICHTUNG ZUR HERSTELLUNG EINER DRUCKPLATTE

摘要

The invention concerns a device for making an engraving plate for printing comprising laser engraving on a polymerised layer of a support. The invention is characterised in that it comprises at least two beams (5n) with different wavelengths dispensed by at least one laser source (1), one of the beams at least operating in infrared for high rate and medium resolution engraving of the polymer surface (4) and at least the other beam operates in the ultraviolet for high resolution engraving.