Patent · US Active

Optical glass

US7598192B2 · kind B2 · utility

9Cited by

7References

39Claims

0Family size

Assignee

Schott AG · DE

Inventors

Silke Wolff · Hückeswagen, DE
Goran Sabljic · Mainz, DE
Ute Woelfel · Bingen, DE

Key dates

Filing date	Dec 8, 2006
Grant date	Oct 6, 2009
Priority date	—
Expiry date	Apr 26, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C3/068
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to optical glasses intended for the application fields of imaging, sensors, microscopy, medical technology, digital projection, photolithography, laser technology, wafer/chip technology, and for telecommunication, optical communication engineering and optics/lighting in the automotive sector, having a refractive index of 1.60≦nd≦1.80 and/or an Abbe number of 30≦νd≦40 with a pronounced short flint character, good chemical stability, excellent crystallization stability, good solarization stability and the following composition (in wt. % based on oxide):

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