| 摘要 |
PROBLEM TO BE SOLVED: To provide an incandescent lamp capable of easily and surely connecting an end of an internal lead bar and an end of a filament coil to each other and having satisfactory assembling workability. SOLUTION: A filament coil 21 is arranged inside of a light-emitting part 11 of a bulb 10 formed of the light-emitting part 11, a bend part 12 continued to the light-emitting part 11, and an arm part 13 extended from the bend part 12, and an internal lead bar 22 is arranged in the arm part 13, and an end of the internal lead bar 22 is fixed to a connecting coil 30, and the filament coil 21 and the connection coil 30 are screwed with each other for fixation. When the coil diameter of the filament coil 21 is large and a difference between the diameter of the internal lead bar 22 is large, a dimension buffering intermediate coil is interposed between the internal lead bar 22 and the connecting coil 30.
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