Image transfer laser engraving

Details Image transfer laser engraving Image transfer laser engraving

1977-04-14

1979-05-22

Truhe, J. V.

Electric heating

Metal heating

By arc

219121LM, B23K 900

Patent

active

041561244

ABSTRACT:
The invention relates to a non-contact laser engraving apparatus and process. A laser beam is directed onto a work piece by a mask arrangement. The mask can be transparent or reflective. Optical means are used to transfer the laser beam and thus the image produced by the mask onto the work piece. In one embodiment parallel support tables hold the mask and the work piece in fixed, spaced apart, parallel arrangement. The support tables and/or the laser beam source are moved relative to each other such that the beam scans the mask and thus the work piece.

REFERENCES:
patent: 3118050 (1964-01-01), Hetherington
patent: 3396401 (1968-08-01), Nonomura
patent: 3440388 (1969-04-01), Otstot et al.
patent: 3549733 (1970-12-01), Caddell
patent: 3965327 (1976-06-01), Ehlscheid et al.

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