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    • 1. 发明授权
    • Illumination unit having at least one essentially U-shaped gas discharge lamp
    • 具有至少一个基本上U形的气体放电灯的照明单元
    • US06822398B2
    • 2004-11-23
    • US10367280
    • 2003-02-19
    • Jochen MurrKlaus Wammes
    • Jochen MurrKlaus Wammes
    • G09G310
    • H01J61/56H01J61/32H01J61/523H01J61/72
    • A substantially U-shaped gas discharge lamp (1′), containing mercury for the gas discharge, is connected to a high-frequency driver circuit (6′). To ensure that the gas discharge lamp operates with minimum loss and maximum light yield, the respective output terminals (4′, 5′) of the high-frequency driver circuit are not electrically grounded and the central section (11′) of the gas discharge lamp is capacitively coupled to an electric ground. A substantial reduction of lamp current in the central section is ensured, thus lowering thermal production in the central section of the gas discharge lamp. Accordingly, the central section becomes the coldest place in the gas discharge chamber and the place where condensation of the mercury occurs. The mercury vapor pressure can thus be regulated and the light yield optimized.
    • 将含有用于气体放电的汞的大致U形的气体放电灯(1')连接到高频驱动电路(6')。 为了确保气体放电灯以最小的损耗和最大的光产量工作,高频驱动电路的各个输出端子(4',5')不是电接地的,并且气体放电的中心部分(11') 灯电容耦合到电地。 确保中心部分中灯电流的显着降低,从而降低气体放电灯的中心部分的热产生。 因此,中央部分成为气体放电室中最冷的地方和汞发生凝结的地方。 因此可以调节汞蒸汽压力并优化光产量。