| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi filament lamp which causes no trouble when a plurality of metal foils are sealed, and whose manufacturing work is easy. SOLUTION: The multi filament lamp comprises a luminous tube 11; a plurality of filament bodies in which a plurality of filaments 16b disposed one by one in the tube axis direction are coupled to respective leads 15c, 16c individually supplying power to the each filament 16b inside the luminous tube 11; and a sealed body in which a rod-shaped sealing insulator 20, and a plurality of conductive members composed of the plurality of metal foils 13e, 13f disposed with intervals on the outer periphery of the sealing insulator 20, internal leads 18i, 18h connected to one ends of the plurality of metal foils 13e, 13f, and external leads 18k, 18l connected to the other ends of the plurality of metal foils 13e, 13f are covered with a tubular sealing member 21, and are hermetically sealed. The leads 15c (16c) extending from one end of the filament bodies and the internal leads 18i (18h) are electrically connected, and the end of the luminous tube 11 and the sealing member 21 of the sealed body are connected and hermetically sealed. COPYRIGHT: (C)2008,JPO&INPIT |
