The durability and abrasion resistance of nano-structured optical surfaces, particularly those formed of or on polymeric substrate, are enhanced by at least one of adhering to it a fluorinated carbon molecule or other reactive lube composition as a monolayer coating (or a thin and substantially uniform...http://www.google.es/patents/US6940651?utm_source=gb-gplus-sharePatente US6940651 - Durable nano-structured optical surface
