C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 14/04 (2006.01) C23C 14/02 (2006.01) C23C 14/24 (2006.01) G02B 1/11 (2006.01)
Patent
CA 2321886
The invention concerns a distribution mask comprising at least two separate blanking panels (22), one of which is mounted mobile. The invention is characterised in that said two blanking panels (22) are substantially coplanar, and, controlled by a common control unit (23), both mounted continuously mobile between two extreme positions, namely, a close position, which is shown, and for which the space (E) between them is minimal, and a spaced position, for which said space (E) is on the contrary at its maximum. The invention is particularly applicable to antiglare treatment of ophthalmic lenses.
Il s'agit d'un cache de répartition comportant au moins deux panneaux d'occultation (22) distincts, dont un est monté mobile. Suivant l'invention, ces deux panneaux d'occultation (22) sont sensiblement coplanaires, et, sous le contrôle d'une commande (23) qui leur est commune, ils sont l'un et l'autre montés mobiles, de manière continue, entre deux positions extrêmes, à savoir, une position rapprochée, qui est celle représentée, et pour laquelle l'espace (E) entre eux est minimal, et une position écartée, pour laquelle cet espace (E) est au contraire maximal. Application, notamment, à un traitement antireflet pour lentilles ophtalmiques.
Beinat Olivier
Conte Dominique
Essilor International (compagnie Generale D'optique)
Robic
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