Optical glass

Details Optical glass Optical glass

2005-05-20

2010-02-09

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S064000, C501S901000

Reexamination Certificate

active

07659222

ABSTRACT:
An optical glass comprising SiO2, B2O3and La2O3and one or more oxides selected from the group consisting of ZrO2, Nb2O5and Ta2O5, having a refractive index of 1.83 or over and an Abbe number of 35 or over and being free of F.

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EPO Search Report, Oct. 17, 2005.
Chinese Examination Report, Dated May 8, 2009.
Taiwan Examination Report Dated May 29, 2008.

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