Silicate-based phosphors and LED lighting devices using the same

US8242525B2 · kind B2 · utility

Assignee

• Lightscape Materials, Inc. · US

Inventors

• Yongchi Tian · Princeton Junction, US
• Perry Niel Yocom · Princeton, US
• Olga Zakharov · Princeton, US
• Alison Sides · Knoxville, US
• Alan C. Thomas · Gilbert, US

Key dates

• Filing date: May 20, 2009
• Grant date: Aug 14, 2012
• Expiry date: Jul 2, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2993
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed herein is a group of phosphors of the formulaM2(SiO4)1-x-y-z(TiO4)x(ZrO4)y(HfO4)z:A,Sand light emitting devices which utilize these phosphors.