ULTRAVIOLET DISCHARGE LAMP

摘要

An ultraviolet discharge lamp is provided to improve light emitting efficiency by using mercury and halogenated thallium in a light emitting tube. An ultraviolet discharge lamp includes mercury and halogenated thallium instead of Fe as a discharge medium within a light emitting tube. The amount of halogenated thallium M is 0.01mg/cc<=M<=0.3mg/cc, when an inside diameter D of the light emitting tube is equal to or less than 30mm. In the inside diameter of the light emitting tube, the amount of mercury Hg is 0.9mg/cc<=Hg<=5.0mg/cc and the amount of halogenated thallium M is 0.012mg/cc<=M<=0.1mg/cc when a light emitting length L is 500mm<=L<=2500mm.