Optical glass

Details Optical glass Optical glass

2008-08-15

2009-12-29

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S049000, C501S051000, C501S073000, C501S077000, C501S078000, C501S079000

Reexamination Certificate

active

07638449

ABSTRACT:
This invention provides an optical glass including, by mass %: 30 to 40% of B2O3; 2.5 to 6% of Li2O; 10 to 17% of ZnO; 12 to 22% of La2O3; 15 to 25% of Gd2O3; 0 to 5% of SiO2; 0 to 5% of Bi2O3; 0 to 15% of Al2O3; 0 to 3% of ZrO2; 0 to 5% of WO3; 0 to 5% of Ta2O5; 0 to 3% of TiO2; 0 to 5% of Y2O3; and 0 to 5% of MgO+CaO+SrO+BaO.

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