B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
B24B 31/14 (2006.01) B24B 9/06 (2006.01) B24B 13/00 (2006.01)
Patent
CA 2288041
A method of processing a soft or foldable lens includes a step of tumbling (grinding) the lens in a tumbling medium. The tumbling medium includes a mixture of glass beads coated with an abrasive material, alcohol and water. This process applies to single piece and multipiece soft lenses.
La présente invention se rapporte à un procédé de fabrication d'une lentille souple ou pliable durant lequel la lentille est travaillée au tonneau (polie) dans un tonneau à polir renfermant un mélange de perles de verre enrobées d'un matériau abrasif, de l'alcool et de l'eau. Ce procédé s'applique aux lentilles souples formées d'une ou de plusieurs pièces.
Kellar Robert
Valle Moises A.
Yamada Akira
Bausch & Lomb Incorporated
Bausch & Lomb Surgical Inc.
Osler Hoskin & Harcourt Llp
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