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US 10,520,647 B2Granted
Anti-fog and anti-reflective dual-functional coating for optical articles
AssigneeHoneywell International Inc.
InventorsShaopeng Zhu, Jon Nebo, Philip M. Johnson
Life of this patent
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Abstract
A coating for an optical article, such as a lens, includes a bottom coating having at least one hydrophilic resin binder and at least one surfactant, forming an anti-fogging layer, and a top coating overlying the bottom coating, forming an anti-reflective layer. The top coating includes nanopores, which may be less than 150 nm in size.
Claims19
A coating for an optical article, comprising:
- a bottom coating comprising at least one hydrophilic resin binder, forming an anti-fogging layer;
- and
- a top coating overlying the bottom coating, forming an anti-reflective layer, the top coating comprising nanopores and nanoparticles.
A method of making an optical article, comprising:
- providing an optical substrate having a top surface and a bottom surface;
- coating the top surface of the optical substrate with a bottom coating comprising at least one hydrophilic resin binder, forming an anti-fogging layer;
- coating the bottom coating on the top surface of the optical substrate with a top coating, forming an anti-reflective layer, the top coating comprising nanopores and nanoparticles.
An optical article, comprising:
- an optical substrate having a top surface and a bottom surface;
- a bottom coating overlying the top surface and bottom surface of the optical substrate, comprising at least one hydrophilic resin binder, forming an anti-fogging layer;
- and
- a top coating overlying the bottom coating, forming an anti-reflective layer, the top coating comprising nanopores and nanoparticles.
1 more element
Dependencies are inferred from the claim text.