Transparent substrate comprising an antiglare coating

Details Transparent substrate comprising an antiglare coating Transparent substrate comprising an antiglare coating

2005-08-02

2005-08-02

Jones, Deborah (Department: 1775)

Stock material or miscellaneous articles

Composite

Of quartz or glass

C428S697000, C428S698000, C428S699000, C428S701000, C428S702000

Reexamination Certificate

active

06924037

ABSTRACT:
A transparent substrate including an antireflection coating, made from a stack of thin layers of dielectric material having alternately high and low refractive indices. This stack includes a high-index first layer having a refractive index n, of between 1.8 and 2.2 and a geometrical thickness e1of between 5 and 50 nm, a low-index second layer having a refractive index n2of between 1.35 and 1.65 and a geometrical thickness e2of between 5 and 50 nm, a high-index third layer having a refractive index n3of between 1.8 and 2.2 and a geometrical thickness e3of between 70 and 120 nm, and a low-index fourth layer having a refractive index n4of between 1.35 and 1:65 and a geometrical thickness e4of at least 80 nm.

REFERENCES:
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