Plus power, photochromatic glass lenses

Details Plus power, photochromatic glass lenses Plus power, photochromatic glass lenses

1998-08-18

2000-03-14

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 59, 65323, C03C 406

Patent

active

060372834

ABSTRACT:
A photochromic glass lens and method of producing such lens, the lens having a plus power and a composition consisting essentially of:

REFERENCES:
patent: 4608349 (1986-08-01), Kerko et al.
patent: 5256601 (1993-10-01), Kerko et al.
patent: 5426077 (1995-06-01), Brocheton et al.
patent: 5482902 (1996-01-01), Claunch et al.
patent: 5491117 (1996-02-01), Kerko et al.

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