Highly refractive, low-density, phototropic glass

Details Highly refractive, low-density, phototropic glass Highly refractive, low-density, phototropic glass

1991-10-10

1993-06-08

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 56, 501 77, 501903, B03C 406, B03C 311, B03C 3064

Patent

active

052179273

ABSTRACT:
A highly refractive, low-density phototropic glass in which the carriers of phototropy are precipitates containing silver, halogens and copper oxide, and which has a density equal to or less than 3.0 g/cm.sup.3, a refractive index equal to or greater than 1.60 and an Abbe number equal to or greater than 40, consisting essentially of, in % by weight on an oxide basis:

REFERENCES:
patent: 4980318 (1990-12-01), Araujo
patent: 5023209 (1991-06-01), Grateau et al.

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