Patent ID: 6341190
Filing Date: 2002-01-22
Classification: B29C,B29D,B29K,B32B

Abstract:
Polymer thin film comprising at least one polymeric structure for use as an organic optical componentwhich thin film comprises (a) a first layer of an optically transmissive first polymer having a first refractive index, the first layer having a surface in which is defined at least one retaining feature adapted to retain a polymer therein; (b) a retention layer of an optically transmissive UV curable second polymer retained within the at least one retaining feature, the second polymer having a second refractive index which is greater than the first refractive index; characterised by (c) an overlay of the second polymer over the first layer adjacent the at least one retaining feature, the overlay having thickness in the range 0.001 &mgr;m to 1.5 &mgr;m over the surface of the first layer.