| 摘要 |
<p>This invention relates to the preparation of molds (10) for the production of contact lenses and other ophthalmic articles. By using an inorganic material to coat the optical surfaces (2, 3) and sidewalls (12, 13) of mold parts (6, 7) made from clear-resin materials, manufacturers can produce lens molds (10) with greater dimensional stability and chemical resistance. In addition to protecting the clear resin from interaction with otherwise reactive monomers from which the molded article (8) is made, such coatings (11) can also be used to achieve preferential release of the molded article. The resulting mold (10) is especially useful for providing an economical way to improve manufacturing quality of contact lenses.</p> |
