Composite photochromic glass article and method of making

Details Composite photochromic glass article and method of making Composite photochromic glass article and method of making

1982-03-15

1983-09-20

Lesmes, George F.

Stock material or miscellaneous articles

Sheet including cover or casing

65 3011, 65 3013, 428210, 428410, 428426, 428428, 428427, 428913, 428332, 501 13, B32B 104, B32B 1706

Patent

active

044056729

ABSTRACT:
There is disclosed a composite photochromic glass article composed of a glass core and a thin surface layer substantially encasing that core, the core preferably containing a copper-cadmium halide photochromic crystal system and the substantially encasing glass layer preferably containing a copper-cadmium-silver halide photochromic crystal system. The article may be made by fusion laminating two separately formed glasses, or by introducing silver into a surface layer on a glass article by ion exchange.

REFERENCES:
patent: 3325299 (1967-06-01), Araujo et al.
patent: 3328182 (1967-06-01), Araujo et al.
patent: 3615771 (1971-10-01), Meiling
patent: 4035527 (1977-07-01), Deeg
patent: 4076542 (1978-02-01), Deeg
patent: 4076544 (1978-02-01), Kerk et al.
patent: 4166745 (1979-09-01), Araujo et al.
patent: 4297417 (1981-10-01), Wu

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