Phototropic glass
    1.
    发明授权

    公开(公告)号:US3617316A

    公开(公告)日:1971-11-02

    申请号:US6010570

    申请日:1970-07-31

    CPC分类号: C03C3/23 C03C4/06 Y10S501/90

    摘要: A phototropic glass comprising a borate glass body containing therein mycrocrystals of silver chloride or silver bromide, and copper oxide, and method of producing the phototropic glass which comprises melting a bath for the said glass body, forming and cooling the molten glass, heat treating said glass to cause the silver halide to crystallize, and cooling the glass.