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:
Aug. 12, 2008
Filed:
Sep. 29, 2004
Applicants:
Turan Erdogan, Spencerport, NY (US);
Ligang Wang, Rochester, NY (US);
Glenn Clarke, Rochester, NY (US);
Inventors:
Turan Erdogan, Spencerport, NY (US);
Ligang Wang, Rochester, NY (US);
Glenn Clarke, Rochester, NY (US);
Assignee:
Semrock, Inc., Rochester, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/25 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical filter including at least one substrate and first and second thin-film interference filters disposed directly on the substrate. The interference filters include a plurality of hard coating thin film layers of alternating high and low index of refraction. A filter set capable of providing low image shift is also provided.