Phototropic glass with a refractive index greater than or equal

Details Phototropic glass with a refractive index greater than or equal Phototropic glass with a refractive index greater than or equal

1986-02-13

1987-08-11

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501903, C03C 406

Patent

active

046861963

ABSTRACT:
A phototropic glass with the optical characteristics of n.sub.d greater than to or equal to 1.59 and v.sub.d greater than or equal to 44, and with a density less than or equal to 3.0 g/cm.sup.-3 is provided having a composition comprising:

REFERENCES:
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patent: 4055435 (1977-10-01), Sagara
patent: 4084978 (1978-04-01), Sagara
patent: 4149896 (1979-04-01), Faulstich et al.
patent: 4190451 (1980-02-01), Hares et al.
patent: 4251278 (1981-02-01), Hares
patent: 4358542 (1982-11-01), Hares
patent: 4438211 (1984-03-01), Mennemann et al.
patent: 4485178 (1984-11-01), Gliemeroth et al.
patent: 4486541 (1984-12-01), Gliemeroth et al.
Gliemeroth, G. et al., Glastechnische Berichte 54(6), pp. 162-174.

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