Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2006-12-08
2009-10-06
Group, Karl E (Department: 1793)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S073000, C501S079000, C501S063000, C055S299000
Reexamination Certificate
active
07598192
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):SiO219-45B2O3 3-7.5Nb2O525-31K2O2-8TiO20.1-2 ZrO2 6-10Ta2O50.5-8.
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Sabljic Goran
Woelfel Ute
Wolff Silke
Group Karl E
Schott AG
Striker Michael J.
Wiese Noah S
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