Optical glass having n.sub.D =1.63.+-.(1.5.times.10.sup.-2), v.s

Details Optical glass having n.sub.D =1.63.+-.(1.5.times.10.sup.-2), v.s Optical glass having n.sub.D =1.63.+-.(1.5.times.10.sup.-2), v.s

1980-12-29

1982-08-10

Bell, Mark

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501903, C03C 308

Patent

active

043439080

ABSTRACT:
An optical glass having n.sub.D =1.63.+-.(1.5.times.10.sup.-2), v.sub.D =59.5.+-.1.0, a high chemical stability and a low tendency to crystallization is provided, consisting essentially of (in percent. by weight):

REFERENCES:
patent: 3248238 (1966-04-01), Faulstich
patent: 3529980 (1970-09-01), Bromer et al.
patent: 3898093 (1975-08-01), Faulstich et al.
patent: 3970466 (1976-07-01), Faulstich

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