Improved print quality laser marker

Details Improved print quality laser marker Improved print quality laser marker

B - Operations, Transporting

23

K

B23K 26/02 (2006.01) B23K 26/06 (2006.01) B41J 2/455 (2006.01) G06K 1/12 (2006.01)

Patent

CA 2080095

Laser marker apparatus for marking indicia onto a substrate includes an exit lens having a focal length, a plurality of lasers, a plurality of turning mirrors, and at least one directing mirror. The surface of the substrate to be marked is positioned generally at the focal plane of the lens. The plurality of lasers is arranged so that their energy output beams are oriented in a generally parallel relationship. The plurality of turning mirrors are positioned along the beam path of each respective laser and are oriented to reflect the output beams at predetermined angles. The directing mirrors redirect the output beams to form a column of spaced apart spots on the substrate. One of the directing mirrors is then moved in a first direction so as to form another column of spots on the substrate. Movement in another direction forms a third column of spots on the substrate. The columns are interleaved to create a composite column of higher resolution for marking Alpha-numeric characters.

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