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US 5,208,101 AGranted
Anti-reflective coatings comprising light metal fluorides
AssigneeFord Motor Company
InventorsEdward N. Boulos, Mark F. Best, Joseph H. Simmons, Stephen J. Pagano
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Abstract
This invention is directed to a process for forming coatings comprising light metal fluorides on a substrate. More particularly, the coating comprising light metal fluorides is preferably made using sol-gel techniques and may comprise a concentration gradient of the light metal fluorides across the thickness of the coating to provide it with unique anti-reflective properties.
Claims8
A coated substrate, comprising:
- A) a substrate;
- and
- B) an anti-reflective coating on the substrate, comprising:
- i) a metal oxide;
- and
- ii) a graded concentration of light metal fluoride,
- wherein the concentration of light metal fluoride within the coating is greater at a point furthest from the substrate and lesser at an interface between the coating and the substrate.
4 more elements
Anti-reflective coated glass comprising:
- A) a glass substrate;
- and
- B) an anti-reflective coating having a thickness from about 50 nm to about 500 nm on the substrate, comprising:
- i) a metal oxide selected from the group consisting of the oxides of silicon, aluminum, boron, zirconium, cerium titanium, and mixtures thereof, and
- ii) a graded concentration of light metal fluoride selected from the group consisting of fluorides of lithium, sodium, potassium, magnesium, calcium and strontium, and mixtures thereof,
- wherein the concentration of light metal fluoride within the coating is greater at a point furthest from the substrate and lesser at an interface between the coating and the substrate.
3 more elements
Dependencies are inferred from the claim text.