| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a self-help capability related to a defect or malfunction of an electric bulb, a fluorescent lamp or the like. <P>SOLUTION: The life of the electric bulb, the fluorescent lamp or the like is prolonged by preparing a spare (3) of a filament (2) easily generating a defect and a malfunction out of parts thereof at the inside of the electric bulb, the fluorescent lamp or the like, and finally, a rotatable receptacle type circuit (9) capable of selecting a circuit to which a current is supplied is prepared while leaving the shape of the electric bulb, the fluorescent lamp or the like as it is. Further, in the case that the electric bulb, the fluorescent lamp or the like are located at a place beyond the reach, the rotatable receptacle type circuit (9) is separated from a main body by making it separable, and made to be able to operate it at hand. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
