METHOD AND APPARATUS FOR RELIABLY LASER MARKING ARTICLES
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United States of America Patent
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app pub date -
Feb 15, 2013
filing date -
Feb 11, 2010
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Abandoned
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Abstract
The invention is a method and apparatus for creating marks 194 on an anodized aluminum specimen 190 with selectable color and optical density. The method includes providing a laser marking system 148 having a laser 150, laser optics 154 and a controller 160 operatively connected to said laser 150 to control laser pulse parameters. The laser marking system 148 is directed to produce laser pulses 152 having laser pulse parameters associated with the desired color and optical density in the presence of a fluid 168 directed to the surface of the anodized aluminum specimen 158 while marking.
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