Optical glass and optical element

Details Optical glass and optical element Optical glass and optical element

2008-02-19

2010-10-26

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S079000

Reexamination Certificate

active

07820576

ABSTRACT:
An optical glass for press-molding contains as glass ingredients, by weight: 0.5-4% SiO2; 20-30% B2O3; 10-20% ZnO; 1-10% ZrO2; 30-45% La2O3; 5-12% Nb2O5; 1-15% WO3; 0.5-3.5% TiO2; 0.5-3% CaO; 0.1-0.5% Li2O; 0-0.4% Na2O (zero inclusive); and 0-0.4% K2O (zero inclusive), with the total content of Li2O+Na2O+K2O accounting for 0.1-0.5%.

REFERENCES:
patent: 6645894 (2003-11-01), Endo
patent: 7491667 (2009-02-01), Hayashi
patent: 2004/0186003 (2004-09-01), Uehara
patent: 2005/0204776 (2005-09-01), Hayashi
patent: 1669966 (2005-09-01), None
patent: 6-305769 (1994-11-01), None
patent: 2005-330154 (2005-12-01), None

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