Method and apparatus for engraving solid articles with laser...

Details Method and apparatus for engraving solid articles with laser... Method and apparatus for engraving solid articles with laser...

B - Operations, Transporting

44

C

B44C 1/22 (2006.01) B23K 26/067 (2006.01) G02B 27/10 (2006.01)

Patent

CA 2325922

The process and apparatus engrave a solid article to provide on at least a portion of a surface of the article a plurality of spaced-apart engraved cells. It generates a laser beam and splits the laser beam into at least two beams. Each of the beams forms a focused spot at the surface. The focused spots spaced apart from each other form beam pairs with each pair of the beams being arranged for simultaneously engraving a new cell. The focused spot of a first of the beam pair engraves the new cell and a second focused spot re-engraves the previously engraved cell. The splitting comprises passing the laser beam through an optical device having a diffractive optical element to form the first beam and the second beam having the spaced apart focused spots.

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