Patent ID: 7060933
Filing Date: 2006-06-13
Classification: B23K,B44F,C03C

Abstract:
1. A method for creating laser-induced images inside transparent material and on its surface using breakdown phenomenon comprising: transformation of image into point arrangement so that distances between adjacent points which should be produced inside the said material exceed threshold distance value; division of the said point arrangement on internal point arrangement, points of which are inside the said material, and surface point arrangement, points of which belong to the said surface; determination of the environment points (of the air or another environment in which the said transparent material is placed) in which plasma should be generated to create the frost areas according to the surface point arrangement; determination of plasma parameters needed for creation of desirable frost areas; generating laser radiation and focusing it at the predetermined points of the said internal point arrangement so that laser energy at the focused spots exceeds the breakdown threshold of the said material and so that damages which have already produced do not prevent to produce the rest etch points; generating laser radiation and focusing it at the predetermined environment points so that laser energy at the focused spots generates laser-induced plasma of predetermined parameters.