Method for transferring a micron pattern on an optical...

B - Operations – Transporting – 41 – F

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B41F 17/00 (2006.01) B41K 3/14 (2006.01) G02C 7/02 (2006.01)

Patent

CA 2632525

The inventive method consists in transferring a pattern (P) onto the optical article (1) in the form of one or several portions of transferable material (3, 4b) retained by a latex layer (2) and in applying one or several transferable material portions with the aid of a pad when the latex layer is formed on the article and the latex is not yet dried. The use of the latex as an adhesive material makes it possible to use the different materials in the form of a transferable material. Said method is particularly suitable for producing patterns in the form of holograms on optical lenses, in particular ophthalmic lenses. Said latex layer can also form a product protection against future potential impacts.

Un motif (P) est transféré sur un article optique (1) sous la forme d'une ou de plusieurs portions d'un matériau transférable (3, 4b) retenues par une couche de latex (2). La ou les portions du matériau transférable sont appliquées avec un tampon, après que la couche de latex a été formée sur l'article et alors que le latex n'est pas encore sec. Grâce à l'utilisation du latex en tant que matériau adhésif, le matériau transférable peut être très varié. Un tel procédé est particulièrement adapté pour réaliser des motifs tels que des hologrammes, sur des lentilles optiques, notamment des lentilles ophtalmiques. La couche de latex peut en outre former une protection du produit contre des chocs éventuels reçus ultérieurement.

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