Laser marking apparatus
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United States of America Patent
Stats
-
Mar 24, 1987
Grant Date -
N/A
app pub date -
Apr 5, 1984
filing date -
Apr 5, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for inscribing characters or other symbols onto moving articles or substrate. The symbols or characters are defined by a matrix having a predetermined number of rows and columns. The apparatus includes a plurality of individual lasers, each dedicated to write a predetermined character row. Columns are written in sequence as the article passes the laser head. Light energy from the lasers is directed by mirrors to an exit lens which focuses the laser beams onto the articles or substrate to be marked. Separate laser mirrors provide reduction in laser beam spacing thereby facilitating a correspondingly foreshortened laser beam path. The lasers are arranged into two groups and interleaved to form the desired character row spacing without mirror overlap or shadowing.
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Cited Art Landscape
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