Photochromic glass and lens

Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...

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Details

Other Related Categories

501 66, 501 67, 501 77, C03C 406

Type

Patent

Status

active

Patent number

061659223

Description

ABSTRACT:
A fixed tint, photochromic glasses and sunglass lenses produced therefrom. The glasses have R.sub.2 O--Al.sub.2 O.sub.3 --B.sub.2 O.sub.3 --SiO.sub.2 base compositions, contain silver chloride and bromide contents as photochromic constituents and 0.22-0.38% NiO and 0.034-0.060% CoO, both by weight percent, as glass colorants, the NiO:CoO ratio being in the range of 5.5-7.2:1.

REFERENCES:
patent: 3208860 (1965-09-01), Armistead et al.
patent: 4190451 (1980-02-01), Hares et al.
patent: 4284686 (1981-08-01), Wedding
patent: 5104831 (1992-04-01), Behr et al.
patent: 5300465 (1994-04-01), Grateau et al.
patent: 5381193 (1995-01-01), Wedding
patent: 5424255 (1995-06-01), Kassner
patent: 5639701 (1997-06-01), Kerko et al.
patent: 5728189 (1998-03-01), Kerko et al.
patent: 5973865 (1999-10-01), Havens et al.

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