A dielectric barrier discharge lamp 100 has an internal electrode 11 inside a bulb 10, and an external electrode 12 outside the bulb 10. Lamp capacity C0 per inner surface area of the bulb between the internal electrode and external electrode is set to less than 2.8 nF/m 2 . By setting lamp capacity C0 within this range, lamp efficiency ·, which is a value obtained by dividing an output luminous flux of the lamp by an power inputted to the lamp, is remarkably increased.
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机译:介质阻挡放电灯100在灯泡10的内部具有内部电极11,在灯泡10的外部具有外部电极12。在内部电极与外部电极之间的灯泡的每个内表面区域的灯容量C0被设定为小于2.8nF。 / m 2。通过将灯容量C0设定在该范围内,灯效率·即灯的输出光通量除以输入到灯的功率而得到的值即灯效率·显着地增加。
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