| 摘要 |
PURPOSE: A filament lamp with a plurality of independent feeding paths is provided to prevent a gap between a pipe and a concave part by sealing a lead end of the sealing unit side of a glass pipe with the material comprising a sealing unit. CONSTITUTION: A light emitting unit(10) has a plurality of filaments separated to an axial direction. A sealing unit(20a,20b) is laid in both sides of the light emitting unit to arrange a metal thin film(31a,32a,33a,31b,32b,33b) corresponding to the number of filaments. The sealing unit includes an external lead(41a,42a,43a,41b,42b,43b) and a glass pipe. The glass pipe is used for covering the external lead. The lead end of the glass pipe is sealed with the corresponding sealing unit. The light emitting unit has three filaments(F1,F2,F3) or more.
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