Stock material or miscellaneous articles – Composite – Of quartz or glass
Reexamination Certificate
2009-07-02
2010-11-16
Blackwell, Gwendolyn (Department: 1784)
Stock material or miscellaneous articles
Composite
Of quartz or glass
C428S428000, C428S689000, C428S699000, C428S701000, C428S702000
Reexamination Certificate
active
07833629
ABSTRACT:
The subject of the invention is a transparent substrate (6) having at least one antireflection coating, made from a film (A) comprising multiple thin layers of alternately high and low refractive indexes.The multilayer film comprises, in succession:a high-index first layer (1), having a refractive index n1of between 1.8 and 2.3 and a geometrical thickness e1of between 5 and 50 nm;a low-index second layer (2), having a refractive index n2of between 1.30 and 1.70 and a geometrical thickness e2of between 5 and 50 nm;a high-index third layer (3), having a refractive index n3of between 1.8 and 2.3 and a geometrical thickness e3of at least 100 nm;a low-index fourth layer (4), having a refractive index n4of between 1.30 and 1.70 and a geometrical thickness e4of at least 80 nm.This antireflection coating can be used in solar modules.
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Anderson Charles
Blieske Ulf
Blackwell Gwendolyn
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Saint-Gobain Glass France
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