Lens manufacturing method

摘要

The method involves providing an organic substrate made of organic polymer, and forming an organic hard abrasion resistant coating on the organic substrate by heating the substrate to temperature that is greater than 90 degrees Celsius for a period of 20 minutes. The substrate coated with organic coating is exposed to humid atmosphere so as to restore the organic substrate with the water being evaporated. A mineral coating that is impervious to water is deposited by vacuum evaporation.