Optical glass and optical element made of the optical glass

Details Optical glass and optical element made of the optical glass Optical glass and optical element made of the optical glass

2005-04-05

2005-04-05

Sample, David (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S046000, C501S047000, C501S048000, C501S051000, C501S901000, C501S903000

Reexamination Certificate

active

06875714

ABSTRACT:
An optical glass consists essentially, expressed in term of weight percent, of: P2O5: 20.0 to 30.0%, B2O3: 0.5 to 10.0%, Nb2O5: 5.0 to 50.0%, WO3: 15.0 to 27.0%, Bi2O3: 0.1 to 3.0%, ZnO: 1.0 to 7.0%, Li2O: 0 to 8.0%, Na2O: 0 to 15.0%, K2O: 0 to 15.0%, and Li2O+Na2O+K2O: 5.0 to 20.0%.

REFERENCES:
patent: 4996173 (1991-02-01), Tachiwana
patent: 6333282 (2001-12-01), Nakahata et al.
patent: 20020042337 (2002-04-01), Zou et al.
patent: 8-157231 (1996-06-01), None
patent: 2001-58845 (2001-03-01), None

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