Glass composition for a lamp envelope of a black light blue lamp

Details Glass composition for a lamp envelope of a black light blue lamp Glass composition for a lamp envelope of a black light blue lamp

1996-01-16

1997-03-18

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

313480, C03C 3087

Patent

active

056122632

ABSTRACT:
A novel type of leadless, black glass for use in an envelope (3) of a black light blue lamp (1) which includes CoO in an amount of 0.45 to 1.0 wt % and NiO in an amount of 2.8 to 3.4 wt %. The glass does not comprise PbO and B.sub.2 O.sub.3. The glass can be exchanged with the existing lead-containing glasses for such envelopes (3). A burning lamp (1) having such an envelope (3) emits light of the same intensity and colour as the existing lamp and emits predominantly UV-A radiation.

REFERENCES:
patent: 3513003 (1970-05-01), Hammer et al.

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