Patent · US Expired

Optical colored glass, its use, and an optical long-pass cutoff filter

US6667259B2 · kind B2 · utility

7Cited by

1References

19Claims

0Family size

Assignee

Schott Glas · DE

Inventors

Rolf Clasen · Saarburg, DE
Monika Gierke · Wiesbaden, DE
Jochen Freund · Stadecken-Elsheim, DE
Simone Monika Ritter · Mainz, DE
Uwe Kolberg · Mainz, DE

Key dates

Filing date	Aug 20, 2002
Grant date	Dec 23, 2003
Priority date	—
Expiry date	Aug 20, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S501/90
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An optical colored glass with a composition (in percent by weight based on oxide) of SiO2 30-75; K2O 5-35; TiO2 0-5; B2O3>4-17; ZnO 5-37; F 0.01-10 MIMIIIY2II 0.1-3, whereby MI=Cu+, Ag+, MIII=In3+, Ga3+, Al3+, YII=S2−, Se2−, Te2−, as well as the use of this glass as a long-pass cutoff filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.