Optical glass

Details Optical glass Optical glass

1975-07-22

1976-12-28

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 47Q, C03C 308, C03C 310

Patent

active

039999971

ABSTRACT:
Optical glass with a path length independent of temperature includes SiO.sub.2, B.sub.2 O.sub.3, K.sub.2 O, BaO, ZrO.sub.2, TiO.sub.2, Nb.sub.2 O.sub.5, P.sub.2 O.sub.5 and F in specified percentages by weight, with the sum of the amounts of SiO.sub.2, B.sub.2 O.sub.3 and P.sub.2 O.sub.5 between 38 and 45% by weight and the sum of the amounts of ZrO.sub.2 and TiO.sub.2 between 12 and 27% by weight.

REFERENCES:
patent: 3100714 (1963-08-01), Bromer et al.
patent: 3266916 (1966-08-01), Bromer et al.
patent: 3513004 (1970-05-01), Kohut et al.
patent: 3536504 (1970-10-01), Faulstich et al.
patent: 3716385 (1973-02-01), Ritze
patent: 3877953 (1975-04-01), Broemer et al.

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