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:
Apr. 24, 2012
Filed:
Jun. 19, 2009
Applicant:
Wilfried Clauss, Tuebingen, DE;
Inventor:
Wilfried Clauss, Tuebingen, DE;
Assignee:
Carl Zeiss SMT GmbH, Oberkochen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/04 (2006.01); C04B 35/03 (2006.01); C04B 35/50 (2006.01); C04B 35/51 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transmitting optical element of polycrystalline material that includes crystallites of magnesium spinel MgAlOor lutetium-aluminum garnet LuAlO, wherein the polycrystalline material includes an average total concentration of foreign element contamination caused by Y, Sc, Co, Ni, Zr, Mo, Sn and/or Nb of less than 50 ppm, preferably of less than 20 ppm, and more preferably of less than 15 ppm.