Low pressure discharger and lamp

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A low-pressure discharge lamp having a discharge vessel and a coating structure. The coating structure is formed on an inner side of the discharge vessel. The coating structure has nanoscale phosphate particles and/or nanoscale functional oxide. Alternatively or in addition, the phosphate particles are free or at least approximately free of rare earth metals. The nanoscale phosphate particles range in size from 5 nm to 800 nm.