Anti-reflective transparent coating with gradient zone

Details Anti-reflective transparent coating with gradient zone Anti-reflective transparent coating with gradient zone

1991-06-19

1993-08-10

Turner, A. A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428212, 428426, 428428, 428446, 428698, 428701, 428702, 428913, B32B 1706

Patent

active

052347486

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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