Optical Articles With Embedded Wafer And Wafer Coating Compositions
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United States of America Patent
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Issued Date -
Oct 10, 2024
app pub date -
Apr 5, 2024
filing date -
Apr 6, 2023
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Abstract
An ophthalmic lens including an embedded functional wafer which is coated on one or both sides with a coating layer and methods for fabricating the same. The coating layer may provide adhesion between the functional wafer and the surrounding resin used to form the lens. The coating layer may also protect the functional wafer from degradation during fabrication, such as due to chemical attack or exposure to heat during thermoforming. The coating layer may be applied to a flat functional sheet and then subsequently formed into a curvature to match the lens, or the coating layer may be applied to an already-curved functional wafer. The coating layer may comprise various compositions known to provide adhesion, protection from heat, and/or protection from chemicals.
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