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. 27, 2012
Filed:
Feb. 17, 2009
Kamel Silmy, Mitterteich, DE;
Jan Schulte-fischedick, Waldershof, DE;
Thomas Kuckelkorn, Jena, DE;
Christina Hildebrandt, Freiburg, DE;
Wolfgang Graf, Eschbach, DE;
Andreas Georg, Freiburg, DE;
Kamel Silmy, Mitterteich, DE;
Jan Schulte-Fischedick, Waldershof, DE;
Thomas Kuckelkorn, Jena, DE;
Christina Hildebrandt, Freiburg, DE;
Wolfgang Graf, Eschbach, DE;
Andreas Georg, Freiburg, DE;
Schott AG, Mainz, DE;
Abstract
The radiation-selective absorber coating () has two barrier layers (), an IR-reflecting layer () arranged thereon, an absorption layer () arranged above the IR-reflecting () and an antireflection layer () over the absorption layer (). The absorber tube () is a steel tube () with the radiation-selective absorber coating () applied to the outside thereof. In the process of coating the absorber tube () a first oxide barrier layer () is applied to a steel tube by thermal oxidation; a second barrier layer () is then applied by physical gas phase deposition of silicon with supply of oxygen; the IR-reflecting layer () is then applied by gas phase deposition of gold, silver, platinum or copper; the absorption layer () is then applied by deposition of aluminum and molybdenum; and a final antireflection layer () is applied by deposition of silicon with supply of oxygen.