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    • 9. 发明公开
    • METHOD OF MANUFACTURING AN ELECTRODE FOR A GAS DISCHARGE LAMP.
    • 方法制造电极用于气体放电灯
    • EP2638557A1
    • 2013-09-18
    • EP11776583.4
    • 2011-10-18
    • Koninklijke Philips Electronics N.V.
    • POORTMANS, StijnVAN DAELE, BennyVAN BYLEN, Kurt Marcel Frieda
    • H01J9/02H01J61/073H01J61/86
    • H01J61/0732H01J9/02H01J61/86
    • The invention describes a method of manufacturing an electrode(1) for a gas-discharge lamp, which method comprises forming an electrode shaft(10); forming a coil(2) over a winding length (L W );arranging the coil(2) on the electrode shaft(10); and melting material of the coil(2) such that, when the melted coil material has re-solidified, the solidified material(30,31) comprises a one-piece shell(3), which one- piece shell(3) comprises a fused portion(30) over a fraction (L T ) of the winding length (L W ) and a mantle portion(31) over a remainder (L B ) of the winding length (L W ). The invention further describes an electrode(1) for a gas-discharge lamp, which electrode(1) comprises an electrode shaft(10); a coil(2) arranged on the electrode shaft(10) over a winding length (L W ); and a one-piece shell(2) comprising re-solidified material of the coil(2), which one-piece shell(3)comprises a fused portion(30) over a fraction (L T ) of the winding length (L W ) and a mantle portion(31) over a remainder (L B ) of the winding length (L W ). The invention also describes a gas-discharge lamp(6) comprising a burner(4) enclosing a discharge vessel(40), a first electrode(1) and a second electrode(1), wherein the electrodes(1) are arranged to protrude into the dis- charge vessel(40) from opposite sides of the discharge vessel(40), wherein at least one of the electrodes(1) comprises an electrode(1) according to the invention.