DISCHARGE LAMP
To suppress generation of position deviation of a coil to an axial direction of an electrode shaft, in a discharge lamp.SOLUTION: A discharge lamp comprises: a light-emitting tube having a discharge space; an electrode shaft 8 provided in the discharge space; and a coil 9 wound around the electrode...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To suppress generation of position deviation of a coil to an axial direction of an electrode shaft, in a discharge lamp.SOLUTION: A discharge lamp comprises: a light-emitting tube having a discharge space; an electrode shaft 8 provided in the discharge space; and a coil 9 wound around the electrode shaft 8. On an outer peripheral surface of the electrode shaft 8, a recessed part 8a to be contacted with a wire 9a of the coil 9 is formed, and the wire 9a and the electrode shaft 8 are recrystallized in the recessed part 8a.SELECTED DRAWING: Figure 3
【課題】放電ランプにおいて、電極軸の軸方向に対するコイルの位置ずれの発生を抑制する。【解決手段】放電ランプは、放電空間を有する発光管と、放電空間に設けられた電極軸８と、電極軸８に巻回されたコイル９と、を備える。電極軸８の外周面には、コイル９の線材９ａが接する凹部８ａが形成され、凹部内８ａで線材９ａと電極軸８とが再結晶化されている。【選択図】図３ |
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