Method for treating a lens apt to trimming

Details Method for treating a lens apt to trimming Method for treating a lens apt to trimming

2003-07-02

2009-02-10

Bashore, Alain L (Department: 1792)

Coating processes

Optical element produced

C427S154000, C427S155000, C427S407100, C427S407200, C427S419800

Reexamination Certificate

active

07488509

ABSTRACT:
Disclosed is a method for treating an ophthalmic lens comprising two main sides, wherein at least one side comprises an organic or mineral external layer coated with a MgF2temporary protective layer, comprising one of the following treating steps: a liquid phase chemical treatment of the temporary protective layer, leading to the formation of MgO and/or Mg(OH)2in and/or on the temporary protective layer; or a deposit of at least one non-fluorinated metallic oxide and/or of at least one non fluorinated metallic hydroxide on the temporary protective layer through transfer thereof from an electrostatic film or through vacuum evaporation thereof directly on the temporary protective layer.

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