Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2008-03-26
2010-11-02
Xu, Ling (Department: 1784)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S639000, C428S672000, C428S673000, C428S697000, C428S699000, C428S701000, C428S702000, C427S164000, C427S419200, C427S419300, C359S588000
Reexamination Certificate
active
07824777
ABSTRACT:
“Corrosion” performance of an optical filter is enhanced when a relatively thick zinc-based film functions as a seed layer for a subsequently formed silver-based film. At least two pairs of dielectric and metallic layers are included within the optical filter, where the zinc-based film is a second film of the dielectric layer and where the silver-based film is the metallic layer. The zinc-based film has a zinc content of at least 80 percent and has a thickness of at least 15 nm. In order to further improve the corrosion performance, gold may be incorporated into the silver-based film.
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Boman Lee
Coda Matthew
Kozak Julius
Stoessel Chris H.
Thielsch Roland
Schneck & Schneck
Southwall Technologies Inc.
Xu Ling
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