Laser process alignment measuring method
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United States of America Patent
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May 12, 2015
Grant Date -
Dec 12, 2013
app pub date -
Jun 5, 2013
filing date -
Jun 8, 2012
priority date (Note) -
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Abstract
A laser process alignment measuring method applicable to a reel-to-reel manufacturing process including a laser process stage, wherein before at least one laser process stage, marks, patterns or surfaces (4,9) are made with printing ink on the base or carrier material of the web (2), and on which the laser beam used can make a mark (7, 10), for example, by removing or changing the printing ink, whereby at the laser process stage, another mark is plotted with the laser beam on the mark et al. printed with printing ink, and the position of the mark et al. printed with printing ink (4, 9) and the mark plotted with the laser (7, 10) are read optically to measure the alignment of the printing ink stage and the laser process stage.
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