Method for obtaining a lens apt to trimming

The invention concerns a method for treating an ophthalmic lens comprising two main sides and having at least one side comprising an organic or mineral external layer coated with a MgF 2 temporary protective layer, wherein treating comprises depositing the MgF 2 temporary protective layer on the ext...

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Bibliographic Details
Main Authors CONTE, DOMINIQUE, LACAN, PASCALE
Format Patent
LanguageEnglish
French
German
Published 12.08.2009
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Abstract The invention concerns a method for treating an ophthalmic lens comprising two main sides and having at least one side comprising an organic or mineral external layer coated with a MgF 2 temporary protective layer, wherein treating comprises depositing the MgF 2 temporary protective layer on the external layer through vacuum evaporation at low speed, i.e. a speed lower than 0.5 nm/s. The invention also relates to an ophthalmic lens comprising a hydrophobic and/or oilophobic coating layer, which has been rendered apt to trimming by the deposition of a MgF 2 temporary protective layer on said hydrophobic and/or oilophobic coating layer using the above method.
AbstractList The invention concerns a method for treating an ophthalmic lens comprising two main sides and having at least one side comprising an organic or mineral external layer coated with a MgF 2 temporary protective layer, wherein treating comprises depositing the MgF 2 temporary protective layer on the external layer through vacuum evaporation at low speed, i.e. a speed lower than 0.5 nm/s. The invention also relates to an ophthalmic lens comprising a hydrophobic and/or oilophobic coating layer, which has been rendered apt to trimming by the deposition of a MgF 2 temporary protective layer on said hydrophobic and/or oilophobic coating layer using the above method.
Author CONTE, DOMINIQUE
LACAN, PASCALE
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DocumentTitleAlternate Verfahren zur Herstellung einer für weitere Bearbeitung geeigneten Linse
Procédé pour l'obtention d'une lentille convenant à la finition
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Snippet The invention concerns a method for treating an ophthalmic lens comprising two main sides and having at least one side comprising an organic or mineral...
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SubjectTerms CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
Title Method for obtaining a lens apt to trimming
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