Optical colored glasses

US6852657B2 · kind B2 · utility

Assignee

• Schott Glas · DE

Inventors

• Uwe Kolberg · Mainz, DE
• Ruediger Hentschel · Bodenheim, DE
• Simone Monika Ritter · Mainz, DE

Key dates

• Filing date: Aug 20, 2002
• Grant date: Feb 8, 2005
• Expiry date: Aug 20, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S501/90
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention concerns an optical colored glass of the composition (in % in weight on oxide basis) SiO2 50-62; K2O 10-25; Na2O 0-14; Al2O3 0-2; B2O3 3-5; ZnO 13.5-37; F 0-1; TiO2 0-7; In2O3 0-2; Ga2O3 0-2; SO3 0-1; SeO2 0-1; C 0-1; MIMIIIY2II 0.1-3, whereby MI=Cu+ and/or Ag+ and/or MIII=In3+ and/or Ga3+ and/or Al3+ and/or YII=S2− and/or Se2− and at least 0.1% in weight of the oxide (M2O3) of the MIII, which is/are present in MIMIIIYII2, and with at least 0.2% in weight of the oxide, of the YII, which is/are present in MIMIIIYII2.