Essilor International (compagnie Generale D'optique)

Essilor International

Pascal Comble

Gerhard Keller

Klaus Goedicke

Volker Kirchhoff

Richard Bosmans

Frédéric Mouhot

J&ouml;m-Steffen Liebig

The invention concerns a method which consists in a process known per se in producing, on the curved substrate () to be treated, a film of material derived from a specific material source (). The invention is characterized in that it consists in inserting, between the curved substrate () and the material source (), a mask () relative to the curved substrate (), preferably selecting as mask (), a mask comprising a ring-shaped part (). The invention is particularly useful for providing lenses with antiglare treatment.

Method for vacuum deposit on a curved substrate

An organic substrate having optically-active layers deposited by magnetron sputtering and a preparation process for it are provided. Gas pressure used for carrying out better adhesion by sputtering is high, comprised between 0.8 and 5.0 Pa. Sputtering is particularly suitable for targets of Si, Ti, Zr and organic substrates with or without anti-abrasive coating. Improved adhesion of thin films is obtained.

Organic substrate having optical layers deposited by magnetron sputtering and method for preparing it

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Le Perreux-sur-Marne, France

Pascal Comble