Anti-reflective transparent coating with gradient zone
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United States of America Patent
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-
Aug 10, 1993
Grant Date -
N/A
app pub date -
Jun 19, 1991
filing date -
Jun 19, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An anti-reflective coating employing a gradient layer of Si.sub.1-x Q.sub.x O.sub.y wherein Q is H, for which x has a value from zero to 0.5, or N, for which x has a value from zero to 0.58, and the value of y varies with depth in the coating, increasing from zero closest the substrate to 2. In certain preferred embodiments the anti-reflective coating is substantially transparent to visible light and yet provides good anti-reflectance. Laminated glazing units having such anti-reflective coatings can be used, for example, in applications requiring high transmittance of visible light, such as motor vehicle windshields.
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Cited Art Landscape
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