Patent ID: 6649093
Filing Date: 2003-11-18
Classification: G11B,Y10S

Abstract:
A method of manufacturing an optically scannable information carrier, which method comprises a first step wherein a master mold is manufactured, and a second step wherein, by means of the master mold or by means of a daughter mold manufactured by means of said master mold, the information carrier is manufactured by means of a replica process, in which first step a photosensitive layer provided on a substrate is irradiated by means of a modulated radiation beam which is focused to a scanning spot on the photosensitive layer by means of an optical lens system, the substrate and the lens system being moved relatively to each other, and a liquid being provided in a gap which is present between the photosensitive layer and a lens of the lens system facing said photosensitive layer, characterized in that the liquid is provided via an outflow opening which, viewed in a displacement direction of the substrate at the location of the scanning spot relative to the lens system, is situated upstream from the scanning spot and directly adjacent said lens, said outflow opening being provided in a wall formed in a carrier for said lens, which wall substantially extends in an imaginary plane wherein a side of the lens facing the photosensitive layer extends.