| 摘要 |
PROBLEM TO BE SOLVED: To provide a bulb equipped with a simple base. SOLUTION: A base of the bulb is provided with a ring metal part (5) elastically formed for fitting a glass bulb (1) and a plastic part (6) equipped with at least one hollow contact pin (7, 8). Leads (3, 4) protruded from the glass bulb (1) is inserted into the hollow contact pins (7, 8) and welded to same, whereby, the metal part (5) is set in a state of being given mechanical stress. Like this, plugging link without allowance is structured either between the glass bulb (1) and the metal part (5) or between the metal part (5) and the plastic part (6). |
