Infrared-transparent chalcogenide glass

US4704371A · kind A · utility

Assignee

• Schott Glaswerke · DE

Inventors

• Hans-Georg Krolla · Mainz, DE
• Magdalena Winkler-Trudewig · Mainz, DE
• Werner Schumann · Pulheim, DE

Key dates

• Filing date: Sep 26, 1986
• Grant date: Nov 3, 1987
• Expiry date: Sep 26, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Infrared-transparent bi- or multicomponent chalcogenide glasses based on germanium and selenium are improved by doping with 0.05 to 1.0 atom % of at least one of the alkaline earth metals calcium or strontium and/or one of their compounds. Optical fibers and optical elements can be made from these glasses.