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US 12,591,081 B2Granted
Abrasion resistance for patterned lens
AssigneeHOYA Optical Labs of America, Inc.
InventorsJeffrey Brown, David Olund, Hannah Vu, Jose A. Orozco Rodriguez, Griff Altmann
Life of this patent
Estimating the term…
Abstract
A patterned lens with abrasion resistance having a base layer hard coat and a top hard coat. The base layer hardcoat may be formed on a film or sheet and used in molding the patterned lens. The top hard coat may be applied after molding.
Claims16
A method of forming a patterned lens having improved abrasion resistance, comprising:
- providing a film or sheet comprising a polymeric material and having a first surface coated with an abrasion resistant coating;
- placing the film or sheet into a lens mold such that the coated surface faces a mold cavity;
- injecting a thermoplastic into the lens mold behind the film or sheet to form a lens;
- and
- replicating one or more optical features from the lens mold into the film or sheet and the abrasion resistant coating.
2 more elements
A method of forming a patterned lens having improved abrasion resistance, comprising:
- providing a film or sheet comprising a polymeric material and having a first surface coated with a first abrasion resistant coating;
- placing the film or sheet into a lens mold such that the coated surface faces the mold cavity;
- injecting a thermoplastic into the mold behind the film or sheet to form a lens;
- replicating one or more optical features from the mold into the abrasion resistant coating and film;
- and applying a second abrasion resistant coating to the formed lens.
2 more elements
Dependencies are inferred from the claim text.