An object of the present invention is to improve the luminous efficiency of a dielectric barrier discharge lamp. A dielectric barrier discharge lamp (100) according to the present invention includes a bulb (10), a rare gas sealed in the bulb, an internal electrode (11), and an external electrode (12) arranged away from the bulb. And a phosphor layer (13). When an AC voltage is applied between the internal electrode and the external electrode by the lighting circuit (14), dielectric barrier discharge is repeatedly generated, and the lamp is lit. The capacitance between the internal electrode and the external electrode is set to less than 2.8 nF / m 2 per internal surface area of the bulb. The discharge charge amount per inner surface area of the bulb and per discharge is set to less than 29.0 μC / m 2.
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机译：本发明的目的是提高电介质阻挡放电灯的发光效率。根据本发明的电介质阻挡放电灯（100）包括灯泡（10），密封在灯泡中的稀有气体，内部电极（11）和远离灯泡布置的外部电极（12）。和磷光体层（13）。当通过点灯电路（14）在内部电极和外部电极之间施加交流电压时，反复发生电介质阻挡放电，灯点亮。内电极和外电极之间的电容被设置为小于灯泡的每个内表面面积2.8 nF / m 2。灯泡的内表面区域和每次放电的放电电荷量应设置为小于29.0μC/ m 2。
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