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US 6,830,712 B1Granted
Deformable molds and methods for their use in the manufacture of ophthalmic lenses
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsJeffrey H. Roffman, Gregory James Hofmann, Larry G. Jones
Life of this patent
Estimating the term…
Abstract
The present provides deformable molds and methods for manufacturing ophthalmic lenses using deformable molds. The molds of the invention may be used in the custom manufacture of ophthalmic lenses.
Claims20
A mold for use in the manufacture of ophthalmic lenses comprising
- a.) at least one mold half comprising a non-molding surface and a molding surface, wherein at least a portion of the molding surface is capable of being reversibly deformed;
- and
- b.) adjustment means for reversibly deforming the deformable portion of the molding surface, wherein the adjustment means is selected from the group consisting of a mechanical magnetic field deformation means, a micro-actuator, and combinations thereof.
A process for manufacturing an ophthalmic lens comprising the steps of:
- a.) providing a mold, at least one half of the mold comprising, consisting essentially of and consisting of (i.) a non-molding surface and a molding surface, wherein at least a portion of the molding surface is capable of being reversibly deformed and (ii.) adjustment means for reversibly deforming the deformable portion of the molding surface, wherein the adjustment means is selected from the group consisting of a mechanical magnetic field deformation means, a micro-actuator, and combinations thereof;
- b.) contacting the adjustment means with the non-molding surface in a manner to deform the deformable portion of the molding surface to a shape suitable for imparting one or more optical characteristics onto a lens surface;
- c.) depositing a lens-forming material on the molding surface mold;
- and
- d.) curing the lens-forming material under conditions suitable to form the ophthalmic lens.
2 more elements
A method for producing customized ophthalmic lenses comprising the steps of:
- a.) transmitting to a lens manufacturer lens order information wherein the information is one of corneal topographic measurements, low order ocular aberrations, high order ocular aberrations, or combinations thereof;
- and
- b.) manufacturing by the lens manufacturer the lenses using a mold for comprising, consisting essentially of, and consisting of i.) at least one mold half comprising, consisting essentially of and consisting of a non-molding surface and a molding surface, wherein at least a portion of the molding surface is capable of being reversibly deformed and ii.) adjustment means for reversibly deforming the deformable portion of the molding surface, wherein the adjustment means is selected from the group consisting of a mechanical magnetic field deformation means, a micro-actuator, and combinations thereof.
Dependencies are inferred from the claim text.