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    • 1. 发明申请
    • ELECTRODE FOR A HIGH INTENSITY DISCHARGE LAMP
    • 用于高强度放电灯的电极
    • WO2006120632A2
    • 2006-11-16
    • PCT/IB2006/051434
    • 2006-05-08
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.PEKARSKI, Pavel
    • PEKARSKI, Pavel
    • H01J61/0732H01J61/86
    • The invention relates to an electrode for a high intensity discharge lamp, at least consisting of an electrode head (2), which has a spherical shape, and an electrode base (1), wherein, in the direction perpendicular to the longitudinal axis of the electrode, the electrode head (2) has a greater dimension than the electrode base (1) at the transition between electrode head (2) and electrode base (1), and a spherical electrode tip (3) is arranged on the electrode head (2), which electrode tip, in the direction perpendicular to the longitudinal axis of the electrode, has a smaller maximum dimension than the electrode head (2). A cylindrical protrusion (4) is arranged on the electrode tip (3), which cylindrical protrusion, in the direction perpendicular to the longitudinal axis of the electrode, has a smaller maximum dimension than the adjoining electrode tip (3). The electrode can be produced from a one-piece blank.
    • 本发明涉及一种用于高强度放电灯的电极,至少由具有球形形状的电极头(2)和电极基座(1)组成,其中在与 电极头(2)在电极头(2)和电极基体(1)之间的过渡处具有比电极基体(1)更大的尺寸,并且在电极头(2)上设置球形电极头(3) 2),在垂直于电极的纵向轴线的方向上,该电极头具有比电极头(2)更小的最大尺寸。 在电极尖端(3)上设置圆柱形突起(4),该圆柱形突起在与电极的纵向轴线垂直的方向上具有比邻接的电极头(3)更小的最大尺寸。 电极可以由一片坯料制成。
    • 5. 发明申请
    • METHOD AND DRIVING UNIT FOR DRIVING A GAS-DISCHARGE LAMP
    • 用于驱动气体放电灯的方法和驱动单元
    • WO2009007914A1
    • 2009-01-15
    • PCT/IB2008/052744
    • 2008-07-08
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.POLLMANN-RETSCH, JensVAN DEN BERGH, John, J. P. J.MACKENS, UwePEKARSKI, PavelCARPAIJ, MarkDEPPE, Carsten
    • POLLMANN-RETSCH, JensVAN DEN BERGH, John, J. P. J.MACKENS, UwePEKARSKI, PavelCARPAIJ, MarkDEPPE, Carsten
    • H05B41/292
    • H05B41/2928Y02B20/208
    • In this method an arc-length control value, indicating the current length of a discharge arc of the gas-discharge lamp (1), is monitored and the lamp (1) is driven in a first operation mode (OMP) with a first current wave-shape when the arc-length control value indicates that the arc-length is higher than a switching threshold, which first current wave-shape is selected to result in a tip (31) growing on an electrode (30) of the lamp (1), and the lamp (1) is driven in a second operation mode (OMn) with a second current wave-shape when the arc-length control value indicates that the arc-length is lower than a switching threshold, which second current wave-shape is selected such that the tip (31) on the electrode (30) is at least partly melted back. In this method an operating frequency of the lamp is switched from a first frequency value (fi) to a second frequency value (f2), which second frequency • (f 2) value is higher than the first frequency value (fi)', if a first time criterion pertaining to a duration of driving of the lamp (1) in the second operation mode (OMn) is fulfilled and the operating frequency is switched from the second frequency value (f2) to the first frequency value (fi), if a second time criterion pertaining to a duration of driving of the lamp (1) in the first operation mode (OMP) is fulfilled.
    • 在该方法中,监视指示气体放电灯(1)的放电弧的当前长度的电弧长度控制值,并且以第一电流(OMP)驱动灯(1) 当电弧长度控制值指示电弧长度高于切换阈值时,选择第一电流波形以导致尖端(31)在灯的电极(30)上生长(波形) 1),并且当电弧长度控制值表示电弧长度低于开关阈值时,灯(1)以第二电流波形在第二操作模式(OMn)中被驱动,该第二电流波 形状,使得电极(30)上的尖端(31)至少部分地被熔化。 在这种方法中,如果将第二频率(f 2)值高于第一频率值(fi)',则灯的工作频率从第一频率值(fi)切换到第二频率值(f2),如果 满足关于在第二操作模式(OMn)中的灯(1)的驱动持续时间的第一时间标准,并且将操作频率从第二频率值(f2)切换到第一频率值(fi),如果 满足与第一操作模式(OMP)中的灯(1)的驱动持续时间有关的第二时间标准。
    • 10. 发明申请
    • METHOD OF DRIVING A GAS-DISCHARGE LAMP
    • 驱动气体放电灯的方法
    • WO2009138916A2
    • 2009-11-19
    • PCT/IB2009/051876
    • 2009-05-07
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N. V.POLLMANN-RETSCH, JensPEKARSKI, Pavel
    • POLLMANN-RETSCH, JensPEKARSKI, Pavel
    • H05B41/288
    • H05B41/2885Y02B20/202
    • The invention describes a method of driving a gas-discharge lamp (1), wherein the lamp (1) is driven at any one time using one of a number of driving schemes, and wherein the lamp (1) is driven at a nominal operating power (P nom ) or at a reduced operating power (P dim ). When the lamp is being driven at the nominal operating power (P nom ), a driving scheme switch-over occurs according to a relationship between a first target voltage (V T1 ) and the operating voltage of the lamp (1), and, when the lamp is being driven at the reduced operating power (P dim ), a driving scheme switch-over occurs according to a relationship between a second target voltage (V T2 ) and the operating voltage of the lamp (1), which second target voltage (V T2 ) is determined on the basis of the reduced operating power (P dim ). The invention further describes a driving unit (10) for driving a gas-discharge lamp (1) according to this method.
    • 本发明描述了一种驱动气体放电灯(1)的方法,其中使用多种驱动方式中的任何一种驱动灯(1),并且其中灯(1)以标称操作 电源(Pnom)或降低的工作功率(Pdim)。 当以正常工作功率(Pnom)驱动灯时,根据​​第一目标电压(VT1)和灯(1)的工作电压之间的关系发生驱动方案切换,并且当灯 以减小的工作功率(Pdim)驱动,根据第二目标电压(VT2)和灯(1)的工作电压之间的关系发生驱动方案切换,该第二目标电压(VT2)为 基于降低的操作功率(Pdim)来确定。 本发明还描述了根据该方法驱动气体放电灯(1)的驱动单元(10)。