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US 8,474,653 B2Granted
Method and device for singulating ophthalmic lenses
AssigneeNovartis AG
InventorsRoger Biel, Peter Hagmann, Günter Lässig
Life of this patent
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Abstract
The present invention relates to a method and a device for singulating ophthalmic lenses, particularly contact lenses. The method and the device are suitable for integration into an automated production of ophthalmic lenses, particularly contact lenses.
Claims11
A device for singulating ophthalmic lenses comprising:
- a high-density buffer containing several stacked lenses in a storage liquid;
- a vessel with an admission line having an annular conduit, wherein the annular conduit having one or more nozzles to separate ophthalmic lenses from the high-density buffer,
- wherein the nozzles are designed to generate a turbulent flow in the vessel,
- a vacuum gripper for gripping one or more ophthalmic lenses from the high-density buffer and placing the one or more ophthalmic lenses into the vessel with the turbulent flow, and
- wherein the vacuum gripper is designed in such a way that the suction surface has a diameter of 10% or less of the diameter of the ophthalmic lens that is to be gripped.
2 more elements
Dependencies are inferred from the claim text.