Coated multilayer optical barrier
AssigneeMeta Platforms Technologies, LLC
InventorsSheng Ye, Andrew John Ouderkirk, Christopher Stipe, Christopher Yuan Ting Liao, Hayden Erik Hernandez
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Abstract
A liquid lens includes a transparent substrate, a multilayer polyurethane-based membrane overlying the transparent substrate, and a liquid layer disposed between and abutting the transparent substrate and the multilayer polyurethane-based membrane. The multilayer polyurethane-based membrane, which may include thermoplastic and/or thermoset polymer layers, may be formed by slot die coating or gravure coating one or more constituent layers and may exhibit a reversible elastic response to imposed strains of up to approximately 5% while limiting the transpiration of fluid therethrough to less than approximately 10−2 g/m2/day.
Claims9
A liquid lens comprising:
- a transparent substrate;
- a multilayer membrane overlying the transparent substrate;
- and
- a liquid layer disposed between and abutting the transparent substrate and the multilayer membrane, wherein the multilayer membrane comprises at least one transparent thermoset polyurethane layer and at least one transparent barrier layer.
A liquid lens comprising a transparent multilayer membrane, said membrane having a reversible elastic response to strains up to approximately 5% and configured to limit transpiration of fluid therethrough to less than approximately 10−2 g/m2/day, wherein the multilayer membrane comprises at least one transparent thermoset polyurethane layer and at least one transparent barrier layer.
Dependencies are inferred from the claim text.