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:
Dec. 29, 2009
Filed:
Aug. 08, 2007
Applicants:
Silke Wolff, Hueckeswagen, DE;
Simone Monika Ritter, Mainz, DE;
Ute Woelfel, Mainz-Laubenheim, DE;
Inventors:
Assignee:
Schott AG, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/16 (2006.01); C03C 3/21 (2006.01);
U.S. Cl.
CPC ...
Abstract
The lead-free optical glass can be used in the fields of imaging, sensor technology, microscopy, medical technology, digital projection, photolithography, laser technology, wafer/chip technology, as well as of telecommunications, optical communication engineering and optics/lighting in the automotive sector. It has a refractive index nof 1.82≦n≦2.00 and/or an Abbe number vof 18≦v≦28 with good chemical stability, excellent crystallization stability and the following composition, in wt. based on oxide content, of: