A lens forming apparatus for preparing a plastic eyeglass lens includes a first lens curing unit, a second lens curing unit and a conveyor system for moving mold assemblies between the two units. The apparatus may also include an anneal unit configured to apply heat to a substantially polymerized lens....http://www.google.com.au/patents/US6464484?utm_source=gb-gplus-sharePatent US6464484 - Apparatus and system for the production of plastic lenses