Optical structures are replicated in photoresist on a substrate using a stamp. The transfer of the pattern into the liquid photoresist and the provision on the substrate can be achieved using manual pressures. Various techniques may be used to remove air from the liquid photoresist. The stamp is removed...http://www.google.com/patents/US6027595?utm_source=gb-gplus-sharePatent US6027595 - Method of making optical replicas by stamping in photoresist and replicas formed thereby
