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US 12,392,938 B2Granted
Energetically bonded aluminum and oleophobic/hydrophobic coatings for substrate
AssigneeFlightsafety International Inc.
InventorBarry Davis
Life of this patent
Estimating the term…
Abstract
Optical-quality mirrors having an energetically bonded oleophobic/hydrophobic (O/H) coating are provided, as are methods for making and using such coatings and mirrors. The O/H coating is a thin-film coating that causes water and oils to form beads and become easily removable from the mirror surface, and thus improves the cleanability, contamination resistance, and usable life of the mirror.
Claims20
An optical mirror, comprising:
- a base layer;
- a binder layer, overlying and energetically bonded to the base layer, comprising aluminum metal;
- a reflective layer, overlying the binder layer, comprising aluminum metal;
- a protective layer, overlying the reflective layer, comprising silicon dioxide;
- and
- a top layer, overlying the protective layer, wherein the top layer is at least one of oleophobic and hydrophobic,
- wherein a combined thickness of the binder layer, the reflective layer, the protective layer, and the top layer varies by no more than about 2% across an area of the optical mirror.
4 more elements
A coating for an optical mirror, comprising:
- a binder layer, comprising aluminum metal, deposited on an underlying substrate at a first rate;
- a reflective layer, overlying the binder layer, comprising aluminum metal, deposited at a second rate;
- a protective layer, overlying the reflective layer, comprising silicon dioxide;
- and
- a top layer, overlying the protective layer, wherein the top layer is at least one of oleophobic and hydrophobic,
- wherein a combined thickness of the binder layer, the reflective layer, the protective layer, and the top layer varies by no more than about 2% across an area of the optical mirror.
3 more elements
Dependencies are inferred from the claim text.