Laser marking

• Main Authors: ADDINGTON CARY G, HUBLEY TIMOTHY S, HUYNH QUOC
• Format: Patent
• Language: English
• Published: 28.02.2006
• Subjects: ADVERTISING; CALCULATING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMPUTING; CORRECTION OF TYPOGRAPHICAL ERRORS; COUNTING; CRYPTOGRAPHY; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DISPLAY; DISPLAYING; EDUCATION; HANDLING RECORD CARRIERS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LABELS OR NAME-PLATES; LINING MACHINES; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PHYSICS; PRESENTATION OF DATA; PRINTING; RECOGNITION OF DATA; RECORD CARRIERS; SEALS; SELECTIVE PRINTING MECHANISMS; SIGNS; SOLDERING OR UNSOLDERING; STAMPS; TRANSPORTING; TYPEWRITERS; WELDING; WORKING BY LASER BEAM

A method for marking a polymeric surface includes directing a first laser beam on the surface to form a lightened area on the surface and directing a second laser beam upon the lightened area to form a mark darker than the lightened area.