Patent ID: 7909957
Filing Date: 2011-03-22
Classification: G11B

Abstract:
1. Process for producing a recording medium comprising at least a first and a second micro-structured stage assembled by an adhesive layer and arranged between micro-structured bottom and top substrates, the process comprising: deposition on the first stage of a polymerizable layer forming the adhesive layer, provisional placing on the adhesive layer of a single micro-structured matrix, the single micro-structured matrix being transparent to a light designed to perform polymerization of the adhesive layer, so as to micro-structure the adhesive layer, polymerization of the adhesive by exposure, through the single micro-structured matrix, with a polymerization light, removal of the single micro-structured matrix, deposition of the second stage on the micro-structured adhesive layer, deposition of an additional adhesive layer on the second stage, and final placing of the single micro-structured matrix on the additional adhesive layer so as to form the top substrate, wherein the process further comprises: