Uv absorbing fused quartz and its use for lamp envelopes

Details Uv absorbing fused quartz and its use for lamp envelopes Uv absorbing fused quartz and its use for lamp envelopes

C - Chemistry, Metallurgy

03

C

C03C 3/06 (2006.01) C03C 4/00 (2006.01) C03C 4/08 (2006.01) H01J 5/04 (2006.01) H01J 61/30 (2006.01) H01J 61/40 (2006.01)

Patent

CA 2095649

UV ABSORBING FUSED QUARTZ AND ITS USE FOR LAMP ENVELOPES ABSTRACT OF THE DISCLOSURE Fused quartz containing europium oxide, titanium dioxide and cerium oxide has been found to be effective for absorbing UV radiation while transmitting visible light radiation. Uses for this material include lamp envelopes and shrouds for halogen incandescent lamps and metal halide arc discharge lamps which emit both W and visible light radiation.

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