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    • 7. 发明公开
    • Electric lamp
    • 电灯
    • EP0441439A1
    • 1991-08-14
    • EP91200224.3
    • 1991-02-05
    • Philips Electronics N.V.
    • Borgis, LivioPiacibello, Marco Vincenzo Pietro
    • H01K1/46H01K1/66H01J61/36
    • H01K1/46
    • The electric lamp has a lamp vessel (1) with a stemtube (4) which is sealed off with a pinch (3) and has an exhaust tube (5) inside. The lamp further has a lamp cap (7) provided with a metal shell portion (12) and a base portion (13), the latter carrying an insulator body (14). The insulator body (14) is made of synthetic resin and extends to inside the stemtube (4) of the lamp vessel (1) around a current supply conductor (10) to a contact member (8) at this insulator body (14). The lamp construction counteracts the risks of a discharge arc inside the lamp cap.
    • 该电灯具有一个灯管(1),该灯管具有一个用箍缩管(3)密封并且内部具有排气管(5)的干管(4)。 该灯还具有设有金属壳部分(12)和基座部分(13)的灯头(7),后者承载绝缘体(14)。 绝缘体(14)由合成树脂制成,并且延伸到灯容器(1)的干管(4)的内部,在该绝缘体(14)处围绕电流供应导体(10)延伸到接触构件(8)。 灯结构抵消灯头内部放电弧的风险。