Abstract: The high-pressure gas discharge lamp according to the invention has electrodes which comprise an electrode rod 24 and a helical winding 26 near its tip 25 projecting into the lamp vessel, both of mainly tungsten. The winding 26 has a first layer of turns 27 helically wound around the rod 24 and locally having a turn of high pitch 29. The winding 26 has around the first layer 27 an outer layer of turns 28, at least two of the outer layer turns interlock with the turn of the high pitch 29 of the first layer 27 at contact areas 30. The turns engage with clamping fit the rod 24 diametrically opposite thereto. As a result, the winding 26 is fixed on the rod 24. If the first layer 27 is integral with the outer layer 28, the winding 26 can be sufficiently fixed with one turn of outer layer 28 interlocking with the high pitched turn 29.

Abstract: The high-pressure discharge lamp has electrodes which comprise a tungsten rod (24) which projects inside the lamp vessel and around whose end (25) projecting inside the lamp vessel a tungsten wire portion (26) is helically wound. The ends (30, 31) of the helically wound wire portion (26) are located within the sheath (29) of this wire portion (26) and the end faces (32, 33) are rupture surfaces devoid of burrs.

Abstract: The high-pressure gas discharge lamp according to the invention has electrodes comprising a rod of mainly tungsten and a helical winding of mainly tungsten near the tip of the rod. The winding has a first layer of turns, which is integral with a second layer of turns. The turns of the second layer are wound with torsion in the wire and surround turns of the first layer which are also wound with torsion. The direction of the torsion in a turn is equal to the direction in which the turn extends around the rod. As a result, the turns with torsion surround with tight fit their substrate and the winding is securely fixed ot the electrode rod.