Patent ID: 7736550

Claim:
A method of manufacturing an optical device by means of a replication method comprising the steps of: filling a gap between a glass substrate and a mould with a liquid light-transmissive polymeric material, curing the polymeric material to obtain a replica layer, removing the mould, wherein said replication method is repeated at least two times while using the same or different moulds, and wherein the substrate, together with one or more replica layers obtained during one or more previous runs of the replication method, is used as a substrate for the next run of the replication method, wherein, in a first run of the replication method, a flat replica layer forming a buffer layer is obtained on the substrate, wherein a height of said replica layers and a thickness of said buffer layer are in the range of 50 to 200 μm, wherein said method includes simultaneously manufacturing a plurality of said optical devices by means of said replication method, including forming said optical devices at a distance between the optical devices in a range from 0.01 to 5 mm, with each said optical device having a diameter of at least 0.1 mm.