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.
Claims20
A liquid lens comprising:
- a transparent substrate;
- a multilayer membrane overlying the transparent substrate, the multilayer membrane comprising two or more thermoplastic polyurethane layers;
- and
- a liquid layer disposed between the transparent substrate and the multilayer membrane.
A liquid lens comprising:
- a transparent substrate;
- a multilayer membrane overlying the transparent substrate, the multilayer membrane comprising alternating layers of a thermoplastic polyurethane and an optically transparent polymer;
- and
- a liquid layer disposed between the transparent substrate and the multilayer membrane.
A method comprising:
- forming alternating layers of a transparent thermoplastic polyurethane layer and a transparent polymer layer over a transparent substrate;
- to form a multilayer membrane;
- and
- forming a liquid layer between the transparent substrate and the multilayer membrane to form a liquid lens.
Dependencies are inferred from the claim text.