Process and apparatus for etching an image within a solid articl

Details Process and apparatus for etching an image within a solid articl Process and apparatus for etching an image within a solid articl

1994-08-12

1996-11-19

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912182, 21912161, B23K 2602

Patent

active

055759360

ABSTRACT:
An apparatus and process for etching an image within a solid article including the steps of focusing a laser to a focal point within the article and positioning the article with respect to the focal point. The laser is fired so that local disruption occurs within the article to form the image within the article.

REFERENCES:
patent: 4092518 (1978-05-01), Merard
patent: 4190759 (1980-02-01), Hongo et al.
patent: 4425769 (1984-01-01), Hakoune
patent: 4467172 (1984-08-01), Ehrenwald et al.
patent: 4651283 (1987-03-01), Sciaky et al.
patent: 5171963 (1992-12-01), Saruta et al.
patent: 5206496 (1993-04-01), Clement et al.
patent: 5313193 (1994-05-01), Dubois et al.
Russian Inventor's Certificate 321,422 of Jan., 1972, with English translation of Summary.

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