Patent ID: 7122951

Claim:
A dielectric barrier discharge lamp, comprising: a discharge vessel containing a xenon discharge medium; a set of electrodes for generating dielectric barrier discharges in the xenon discharge medium whereby xenon excimer radiation is emitted; and a phosphor mixture applied at least to a portion of a wall of the discharge vessel, the phosphor mixture consisting essentially of phosphor components A, B, C, and D wherein component A is Y 3 Al 5 O 12 :Ce, component B is BaMgAl 10 O 17 :Eu, component C is Gd(Zn,Mg)B 5 O 10 :(Ce,Mn), and component D is Sr 4 Al 14 O 25 :Eu and wherein the phosphor components have the following proportions by weight in the mixture: 0.01 ≦A ≦0.50, 0.05 ≦B ≦0.50, 0.05 ≦C ≦0.70, 0 ≦D ≦0.25 and A+B+C+D =1.