Polychromatic glasses and method
AssigneeCorning Glass Works
InventorGeorge H. Beall
Life of this patent
Estimating the term…
Abstract
A polychromatic glass article, colored by silver, is disclosed wherein the silver occurs as an anisotropic film at the surface of lithium bromide spherulites which crystallize directly on silver nuclei from lithium silicate and lithium aluminosilicate glasses. The article is produced by sequential radiation exposures and heat treatments of the glass.
Claims10
A silver-containing polychromatic glass article wherein the glass composition has a total silver content of at least 0.005% by weight, and at least a portion of the article is characterized by the presence of spherulites of lithium bromide (LiBr) crystallized on silver nuclei and by color-producing, anisotropic silver films at or on the surface of the LiBr spherulites.
Dependencies are inferred from the claim text.