Optical and ophthalmic glass with refractive indices greater tha

Details Optical and ophthalmic glass with refractive indices greater tha Optical and ophthalmic glass with refractive indices greater tha

1983-02-18

1985-12-31

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 58, 501 61, 501 62, 501 63, 501 64, 501 65, 501 66, 501 67, 501903, C03C 308

Patent

active

045621616

ABSTRACT:
An optical and ophthalmic glass with high refractive index, high Abbe number and low density, which is distinguished by good chemical stability, good crystallization behavior and capability for chemical hardening, comprises (in % by weight):

REFERENCES:
patent: 2433883 (1948-01-01), Armistead
patent: 3420648 (1969-01-01), Andrews et al.
patent: 3790260 (1974-02-01), Boyd
patent: 3951671 (1976-04-01), Parry et al.
patent: 3997250 (1976-12-01), Krohn et al.
patent: 4367012 (1983-01-01), Ikeda et al.

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