LASER CALIBRATION APPARATUS AND METHOD

A method (140) and system (10) of determining scanner coordinates to accurately position a focused laser beam (32a, 32b). The focused laser beam is (32a, 32b) scanned over a region of interest (e.g. an aperture (34)) on a work- surface (36) by a laser scanner (22, 24). The position of the focused la...

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Bibliographic Details
Main Authors KITAI, ANTON THEODORE, PARKER, ROBERT GLENN, MILLER, IAN JAMES
Format Patent
LanguageEnglish
French
Published 17.06.2008
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:A method (140) and system (10) of determining scanner coordinates to accurately position a focused laser beam (32a, 32b). The focused laser beam is (32a, 32b) scanned over a region of interest (e.g. an aperture (34)) on a work- surface (36) by a laser scanner (22, 24). The position of the focused laser beam (32a, 32b) is detected by a photodetector either at predetermined intervals of time or space or as the focused laser beam (32a, 32b) appears through an aperture (34) in the work surface (36). The detected position of the focused laser beam (32a, 32b) is used to generate scanner position versus beam position data based on the position of the laser scanner (22, 24) at the time the focused laser beam (32a, 32b) is detected. The scanner position versus beam position data can be used to determine the center of the aperture or the scanner position coordinates that correspond with a desired position of the focused laser beam (32a, 32b).
Bibliography:Application Number: CA20002370813