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US 2006/0043623 A1Published application
Masked precure of ophthalmic lenses: systems and methods thereof
OwnerP. Powell, Kent Young +2inventors
InventorsP. Powell, Kent Young, Keny Sanders, Edward Kernick
Life of this patent
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Abstract
Methods and systems for manufacturing tinted ophthalmic lenses are provided herein. Disclosed are ophthalmic lens mold assemblies that include ophthalmic lens mold halves, at least one of which includes a colorant. A portion of the curable lens-forming material is precured, while a portion of the curable lens-forming material in contact with the color layer remains substantially uncured to permit diffusion of the colorant into the lens.
Claims31
A method of facilitating the manufacture of an ophthalmic lens, the method comprising the steps of:
- positioning a first ophthalmic lens mold half proximate to a second a second ophthalmic lens mold half, wherein at least one of said first and second ophthalmic lens mold halves comprises a color layer;
- depositing a curable lens-forming material between said first and second ophthalmic lens mold halves such that said curable lens-forming material contacts at least one of the ophthalmic lens mold halves and said color layer;
- curing at least a portion of the curable lens-forming material in contact with at least one of the ophthalmic lens mold halves, the portion of the curable lens-forming material in contact with said color layer remaining substantially uncured.
A system, comprising:
- an ophthalmic lens mold assembly, comprising:
- a first ophthalmic lens mold half;
- a second ophthalmic lens mold half positioned proximately to said first ophthalmic lens mold half, at least one of the first and second ophthalmic lens mold halves comprising a color layer;
- a mask positioned proximately to at least one of the mold halves, said mask comprising a plurality of openings capable of passing radiation therethrough, said plurality of openings positioned to irradiate at least a portion of a curable lens-forming material in contact with at least one of the mold halves;
- and
- a radiation source for providing radiation capable of curing said curable lens-forming material.
3 more elements
Dependencies are inferred from the claim text.