Laser marking apparatus

Details Laser marking apparatus Laser marking apparatus

1984-04-05

1987-03-24

Leung, Philip H.

Electric heating

Metal heating

By arc

219121LQ, 219121LR, 219121LK, 346 76L, B23K 2606

Patent

active

046527222

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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patent: 4404571 (1983-09-01), Kitamura
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IBM Technical Disclosure Bulletin, vol. 17, No. 5, Oct. 1974, "Color Modulated Dye Ink Jet Printer".

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