| 摘要 |
The treatment of an ophthalmic glass, with two principal surfaces of which at least one incorporates an external organic or mineral layer coated with a temporary protective layer of MgF 2, comprises: (a) chemical treatment by a liquid of the temporary protective layer, leading to the formation of a layer of MgO on the temporary protective layer; (b) deposition of at least one metal oxide and/or at least one non-fluoride metal hydroxide on the temporary protective layer by transfer or from an electrostatic film or by evaporation under vacuum or directly on the temporary protective layer; and (c) the deposition of the temporary protective layer of MgF 2 on the external layer by evaporation under vacuum at a speed of less than or equal to 0.5 nm/second. An independent claim is included for an ophthalmic lens treated as above. |
