Method and laser system for creation of laser-induced damages to produce high quality images

Abstract

Embodiments of methods and laser system for creating laser-induced damages inside a transparent material are disclosed. One or more embodiments of the invention comprise a method and system for production of an etch point by generating breakdowns in several separate focused small points inside the etch point area. Other embodiments of the invention comprise a method for production of etch points which have the same size but different brightness. Laser-induced damages produced by this method permit to reproduce image gradation without changing of their spatial resolution. According to the invention it is made by variation of a number of focused small points inside an etch point area. Other embodiments of the invention comprise method for creation of an etch point with desirable form. Using such etch points it is possible to produce images which from different directions will have right brightness.

Dependencies are inferred from the claim text.