Method for producing an arrangement of microlenses made of a plastic or a resin on an arc-shaped substrate

Abstract

The invention relates to a method for producing an arrangement of microlenses made of a plastic or resin on an arc-shaped substrate, wherein a layer of liquid or plasticized plastic or resin is applied to at least one example of the substrate in a screen printing process in an sheet-fed printing machine, then the arrangement of microlenses to be produced is formed from the layer consisting of the plastic or resin in an embossing process using a molding tool, after which the layer formed into microlenses on the respective example of the substrate is hardened by irradiation with UV radiation, wherein a molding tool is used.which, for forming each of the microlenses to be produced in the arrangement with a lens width of a maximum of 100 µm, has cavities forming shapes with a pair of opposing concave or convex surfaces in the transport direction of the substrate to be transported by the sheet-fed printing press and / or transversely to the transport direction of the substrate to be transported by the sheet-fed printing press, wherein the distance between the respective pair of opposing concave or convex surfaces is at least 10% of the respective lens width.