Patent ID: 8514492
Filing Date: 2013-08-20
Classification: B29D,B42D,G02B,Y10T

Abstract:
1. A multilayer body having a transparent first layer in which a multiplicity of microlenses is shaped, and a second layer which is arranged beneath the first layer in a fixed position relative to the first layer and which has a multiplicity of microscopic structures, wherein the microlenses are cylindrical lenses of a length of more than 2 mm and a width of less than 400 μm which are arranged in accordance with a microlens grid spanning a first co-ordinate system having a coordinate axis X wherein the microlenses have a line spacing determined by the spacing of the focal point lines of the cylindrical lenses, and the microimages have a microimage spacing, which is determined by the spacing of the centroids of the microimages, and wherein the co-ordinate axis Y wherein the line spacing of adjacent microlenses differs from the microimage spacing of adjacent microscopic structures in the superposed region, the difference being less than 10%.