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:
Jan. 29, 2008
Filed:
Sep. 20, 2006
Steffen Reichel, Mehlingen, DE;
Wolfram Beier, Essenheim, DE;
Frank-thomas Lentes, Bingen, DE;
Yoshio Okano, Mainz, DE;
Jochen Alkemper, Klein-Winterheim, DE;
Jose Zimmer, Ingelheim, DE;
Joseph S. Hayden, Clarks Summit, PA (US);
Carsten Weinhold, Clarks Summit, PA (US);
Ulrich Peuchert, Bodenheim, DE;
Martin Letz, Mainz, DE;
Steffen Reichel, Mehlingen, DE;
Wolfram Beier, Essenheim, DE;
Frank-Thomas Lentes, Bingen, DE;
Yoshio Okano, Mainz, DE;
Jochen Alkemper, Klein-Winterheim, DE;
Jose Zimmer, Ingelheim, DE;
Joseph S. Hayden, Clarks Summit, PA (US);
Carsten Weinhold, Clarks Summit, PA (US);
Ulrich Peuchert, Bodenheim, DE;
Martin Letz, Mainz, DE;
Schott AG, Mainz, DE;
Abstract
The optical elements are made from an opto-ceramic material that is characterized by high density, transparency for visible light and IR, high refractive index, high Abbe number and outstanding relative partial dispersion. Mixed oxides are sintered to obtain the opto-ceramic material. The mixed oxides contain zirconium oxide and hafnium oxide mixed with one or more oxides of yttrium, scandium, lanthanide elements, and optionally mixed with one or more of SiO, NaO, and TiO. Alternatively the mixed oxides contain zirconium oxide and hafnium oxide mixed with CaO and/or MgO and optionally mixed with one or more of SiO, NaO, and TiO. In addition, the mixed oxides can also include one or more oxides of Al, Ga, In, and Sc; optionally one or more oxides of yttrium, some lanthanide elements; and optionally one or more of SiO, NaO, MgO, CaO, and TiO.