Essilor International (compagnie Generale D'optique)

Essilor International

David Robin

Alexis Theoden

Francis Henky

Arnaud Igier

Disclosed is an optical article, preferably an ophthalmic lens, including a substrate having at least one main surface and a precursor coating of an anti-fog coating, the precursor coating in direct contact with either the main surface of the substrate, or with a first coating, when the main surface of the substrate is coated with a first coating, the precursor coating being formed by a deposition of at least one hydrophilic compound A on the substrate or on the first coating, including an inner portion in which the compound A is grafted on the substrate or on the first coating, and an outer portion that can be removed by washing and/or wiping, resulting from the deposition of the compound A, and being coated with a temporary layer, in direct contact with the compound, including at least one compound selected from the metal fluorides and the compounds including magnesium and oxygen.

Optical article comprising a precursor coating of an anti-fog coating and a temporary layer made of metal fluorides or compounds including magnesium and oxygen

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Yerres, France

David Robin