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    • 21. 发明公开
    • Electrodeless lamp
    • 无极灯
    • EP0678900A3
    • 1997-08-06
    • EP95302445.2
    • 1995-04-12
    • GENERAL ELECTRIC COMPANY
    • Scott, Curtis EdwardVamvakas, Spiro, (NMN)Arsena, Vito JosephOberle, Joseph C.
    • H01J65/04H01J61/04H01J61/35H01J61/56
    • H01J61/56H01J61/302H01J61/35H01J65/048
    • Disclosed is an electrodeless, low pressure gas discharge lamp (10). The lamp (10) includes a vitreous envelope (12) containing a metal vapour and an inert gas. The envelope (12) is shaped with an external chamber (14) for receiving an electrical excitation circuit. The excitation circuit is effective for exciting the metal vapour to emit light with electromagnetic fields that are passed through the vitreous envelope (12) from outside, to inside, the envelope (12). A circuit supplies electrical power from power mains to the excitation circuit. A transparent, electrically conductive coating (26) is disposed on the inner surface of the vitreous envelope (12) for suppressing electromagnetic interference on the power mains. An electrically conductive coating (30) is disposed on the outer surface of the vitreous envelope (12); it is capacitively coupled to the inner conductive coating (26), via a wall of the vitreous envelope (12), and is maintained at a suitable potential for suppressing electromagnetic interference on the power mains. The outer conductive coating (30) comprises a matrix (40) of a contiguous, inorganic, glass layer bonded to an exterior surface of the vitreous envelope (12), and conductive particles (42) embedded in the matrix (40) in a sufficiently dense manner to form a conductive coating.
    • 公开了一种无电极,低压气体放电灯(10)。 灯(10)包括含有金属蒸汽和惰性气体的玻璃壳(12)。 外壳(12)成形为具有用于接收电激励电路的外部腔室(14)。 激励电路有效地激励金属蒸汽发射具有电磁场的光,该电磁场从外部通过玻璃质外壳(12)到内部,外壳(12)。 电路从电源向激励电路提供电力。 透明的导电涂层(26)设置在玻璃壳(12)的内表面上,用于抑制电力干线上的电磁干扰。 导电涂层(30)设置在玻璃壳(12)的外表面上; 它经由玻璃壳(12)的壁电容耦合到内部导电涂层(26),并且保持在合适的电位以抑制电力干线上的电磁干扰。 外导电涂层(30)包括与玻璃质外壳(12)的外表面结合的连续无机玻璃层的基体(40),以及充分嵌入基体(40)中的导电颗粒(42) 致密地形成导电涂层。