The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 2010
Filed:
Mar. 26, 2008
Chris H. Stoessel, Santa Rosa, CA (US);
Andrew Wahl, Grossroehrsdorf, DE;
Roland Thielsch, Dresden, DE;
Matthew Coda, Menlo Park, CA (US);
Julius Kozak, Antioch, CA (US);
Richard T. Wipfler, Menlo Park, CA (US);
Lee Boman, Belmont, CA (US);
Chris H. Stoessel, Santa Rosa, CA (US);
Andrew Wahl, Grossroehrsdorf, DE;
Roland Thielsch, Dresden, DE;
Matthew Coda, Menlo Park, CA (US);
Julius Kozak, Antioch, CA (US);
Richard T. Wipfler, Menlo Park, CA (US);
Lee Boman, Belmont, CA (US);
Southwall Technologies, Inc., Palo Alto, CA (US);
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.