GAS DISCHARGE LAMP COMPRISING A PHOSPHOR LAYER

摘要

The invention relates to a gas discharge lamp for dielectrically impeded discharges, which gas discharge lamp is provided with a discharge vessel filled with a gas filling, which discharge vessel comprises at least a wall of a dielectric material and at least a wall having a surface which is at least partly transparent to visible radiation and coated with a phosphor layer, which phosphor layer comprises a phosphor having a host lattice, Eu<2+> as the activator and a doping D selected from the group formed by Ce<3+>, Pr<3+> and Tb<3+>, and provided with an electrode structure for a dielectrically impeded discharge and means for igniting and maintaining the discharge. The invention also relates to a phosphor comprising a host lattice, Eu<2+> as the activator and a doping D selected from the group formed by Ce<3+>, Pr<3+> and Tb<3+>.