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    Circuit arrangement for operating a high-pressure discharge lamp
    1.
    发明授权
    Circuit arrangement for operating a high-pressure discharge lamp 有权
    用于操作高压放电灯的电路装置

    公开(公告)号：US06232725B1

    公开(公告)日：2001-05-15

    申请号：US09464006

    申请日：1999-12-15

    申请人： Gunther H. Derra ,  Hanns Ernst Fischer ,  Hans G. Ganser ,  Thomas Krucken ,  Holger Moench ,  Rob Snijkers

    发明人： Gunther H. Derra ,  Hanns Ernst Fischer ,  Hans G. Ganser ,  Thomas Krucken ,  Holger Moench ,  Rob Snijkers

    IPC分类号： H05B3700

    CPC分类号： H05B41/2928 ,  Y10S315/05

    摘要： A circuit arrangement is provided for operating a high pressure discharge lamp with a lamp current which, in successive periods, has opposite polarities. The lamp is provided with at least two main electrodes being spaced an electrode distance from each other. The circuit arrangement includes input terminals for connection to a supply source, output terminals for connection to the high pressure discharge lamp, and an element, coupled to the input terminals, for supplying the lamp current to the high pressure discharge lamp, which current, in successive periods, has a predetermined shape. The circuit arrangement is provided with an element for detecting a first parameter indicative of the electrode distance and forming a first signal dependent on the first parameter and with an element for reshaping the lamp current, in successive periods, in dependence of the thus formed first signal.

    摘要翻译： 提供了一种用于操作具有连续时段中具有相反极性的灯电流的高压放电灯的电路装置。 灯具设置有至少两个主电极，彼此之间隔开电极距离。 该电路装置包括用于连接到电源的输入端，用于连接到高压放电灯的输出端和耦合到输入端的元件，用于将灯电流提供给高压放电灯， 连续的周期具有预定的形状。 该电路装置设置有用于检测指示电极距离的第一参数并根据第一参数形成第一信号的元件，并且在连续的周期内，根据由此形成的第一信号 。

    High-pressure gas discharge lamp with cooling arrangement
    3.
    发明授权
    High-pressure gas discharge lamp with cooling arrangement 失效
    高压气体放电灯具有冷却装置

    公开(公告)号：US06724147B2

    公开(公告)日：2004-04-20

    申请号：US10204746

    申请日：2002-08-23

    申请人： Holger Moench ,  Hanns Ernst Fischer

    发明人： Holger Moench ,  Hanns Ernst Fischer

    IPC分类号： B60Q102

    CPC分类号： H01J61/52

    摘要： A high-pressure gas discharge lamp with a cooling arrangement is described, which is characterized in particular in that the lamp can be operated at an increased power, an increase in the temperature of the coldest spot in the lamp interior generating a higher gas pressure, while the cooling arrangement (7, 71, 83, 82) is constructed and dimensioned such that a devitrification of the lamp bulb and a condensation of the filling gas are substantially prevented at said increased power. A lighting unit with such a high-pressure gas discharge lamp is further described, as is a power supply unit for operating the lamp. This not only considerably improves the spectral properties of the light, but the lamp also operates at a higher operating voltage because of the higher gas pressure, so that a correspondingly higher lamp power is achieved for a given lamp current. On the other hand, given the same lamp power, a weaker current is required, so that the electrodes will have a substantially longer useful life. All this is achieved without any change in the geometry of the lamp.

    摘要翻译： 描述了具有冷却装置的高压气体放电灯，其特征在于特征在于灯可以以增加的功率运行，灯室内的最冷点的温度升高产生较高的气体压力， 而冷却装置（7,71,83,82）的构造和尺寸被设计成使得在所述增加的功率下基本上防止了灯泡的失透和填充气体的冷凝。 进一步描述具有这种高压气体放电灯的照明单元，以及用于操作灯的电源单元。 这不仅显着地改善了光的光谱特性，而且由于较高的气体压力，灯也在较高的工作电压下工作，使得对于给定的灯电流实现相应更高的灯功率。 另一方面，给定相同的灯功率，需要较弱的电流，使得电极将具有显着更长的使用寿命。 所有这一切都是在灯的几何形状没有任何变化的情况下实现的。