Anordnung und Verfahren zum Richten eines Laserstrahls auf Werkstücke

• Main Authors: DANE, BRENT C, HACKEL, LLOYD A, HARRIS, FRITZ B
• Format: Patent
• Language: German
• Published: 31.01.2008
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DEVICES USING STIMULATED EMISSION; ELECTRICITY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MACHINE TOOLS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

A system for applying a laser beam to work pieces, includes a laser system (251) producing a high power output beam. Target delivery optics are arranged to deliver the output beam to a target work piece. A relay telescope (180) having a telescope focal point is placed in the beam path between the laser system (251) and the target delivery optics. The relay telescope (180) relays an image between an image location near the output of the laser system (251) and an image location near the target delivery optics. A baffle (189) is placed at the telescope focal point between the target delivery optics and the laser system (251) to block reflections from the target in the target delivery optics from returning to the laser system (251) and causing damage.