Double layer light-conducting microstructure mfr.

摘要

In a process for mfg. a structure with a core layer and one or more facing layers (40), the layers are fused together in a mould cavity. The mould is claimed and comprises a micro-structured die (10) and a single or multilayer punch (20). Also claimed are process for mfr. of optical microstructures for (a) multimode uses with fibres of given dia. and (b) any optical fibre. For multimode uses core and facing (40) layer thicknesses and tool cavity depth are specified and for any fibre core layer, thickness is similar to the fibre core dia. and the height of the structured part of the moulded facing layer equals the cover thickness of the optical fibre.