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 architecture includes a transparent substrate, a multilayer thermoplastic polyurethane (TPU)-based membrane overlying at least a portion of the transparent substrate, and a liquid layer disposed between and abutting the transparent substrate and the multilayer thermoplastic polyurethane-based membrane. The TPU-based membrane may exhibit a reversible elastic response to imposed strains of up to approximately 2% and is configured to limit the transpiration of fluid to less than approximately 10−2 g/m2/day.
Claims8
A liquid lens comprising a transparent multilayer thermoplastic polyurethane-based membrane, said membrane having a reversible elastic response to strains up to approximately 2% and configured to limit transpiration of fluid therethrough to less than approximately 10−2 g/m2/day, wherein the transparent multilayer thermoplastic polyurethane-based membrane comprises alternating layers of a transparent aliphatic thermoplastic polyurethane material and a transparent aromatic thermoplastic polyurethane material.
Dependencies are inferred from the claim text.