| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bulb capable of easily screwing its base into a threaded part without requiring a stronger force than usual and without causing deformation of the base. <P>SOLUTION: The threaded part 4a is formed at one end of a case 4 in which a lighting circuit 3 is accommodated, and the base 5 is screwed fast to the threaded part 4a, and leads 3b connected with the lighting circuit 3 are laid in a groove 4c formed at the thread tops 4b of the threaded part 4a and pinched fast between it 4a and the base 5, and the leads 3b are pinched fast in the groove 4c. <P>COPYRIGHT: (C)2003,JPO |
