Patent ID: 6639178
Filing Date: 2003-10-28
Classification: B08B,B23K,B41M

Abstract:
Process for the local removal of a coating (2), consisting of at least one metallic layer and/or at least one metal-oxide layer, applied on a translucent or transparent substrate (1) made of natural or synthetic glass or of transparent plastic, characterised in that, by means of a solid-state pulse laser (4) or at least one pulsed laser diode, a pulsed laser beam (3) whose pulse is inferior to 30 ns and whose wave length(s) is/are comprised between 10 micrometers and 360 nanometers is directed onto the coating (2) to those spots where the latter has to be removed, whereby the applied wave lengths are such that the absorption of the substrate (1) and of the coating (2) as a whole is less than 30%.