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US 11,029,519 B2Granted
Antireflection coatings
AssigneeGentex Corporation
InventorsGeorge A. Neuman, Mario F. Saenger Nayver, John S. Anderson
Life of this patent
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Abstract
A transparency includes a first substrate having a first surface and a second surface. A second substrate includes a third surface and a fourth surface. An optical coating is positioned on the fourth surface. The optical coating has a refractive index real component n of greater than about 1.8 and an nk ratio of greater than about 0.6, as measured at 550 nm. The fourth surface has a reflectance of less than about 1.2%, as measured from the first surface.
Claims20
A transparency, comprising:
- a first substrate comprising a first surface and a second surface;
- a second substrate comprising a third surface and a fourth surface;
- an optical coating positioned on the fourth surface, the optical coating having a refractive index of greater than about 1.8 and an nk ratio of greater than about 0.6, and comprising at least one metal or metal alloy selected from aluminum silicon alloys, aluminum titanium alloys, molybdenum, molybdenum rhenium alloys, molybdenum silicon alloys, niobium, cobalt, iridium, platinum, rhenium, ruthenium, stainless steel, tantalum, tungsten, vanadium, and zirconium, and
- wherein the reflectance of the fourth surface has a reflectance of less than about 1.2% as measured from the first surface.
1 more element
Dependencies are inferred from the claim text.