Patent ID: 6167727
Filing Date: 2001-01-02
Classification: C03B,C03C

Abstract:
A process for producing a polarizing glass article containing shape-anisotropic metallic particles selected from the group consisting of particles of copper, silver, gold and platinum dispersed in an oriented state therein, which comprises: preparing a glass preform containing metallic halide particles selected from the group consisting of halide particles of copper, silver, gold and platinum dispersed therein and having at least two polished faces opposite to each other; drawing said glass preform under a stress of 50 kg/cm.sup.2 to 600 kg/cm.sup.2 so that said metallic halide particles dispersed in said glass preform are elongated and a glass having a thickness of 2 mm or less is obtained; and subjecting the drawn glass to reducing treatment so that a part or all of the elongated metallic halide particles are reduced to metallic particles.