| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a base lamp capable of complying with a plurality of kinds of sockets having different diameters, easily screwed to be attached to any socket, and allowing shared use of a product. <P>SOLUTION: In the base lamp having a screw base 2 protruded from a lamp body 1, a small-diameter base part 4 is protruded coaxially from the tip part of a large-diameter base part 3, the base body 2 is protruded in a steps shape having a diameter gradually reducing toward the tip side, and the small-diameter base part 4 can be retracted and housed freely inside the large-diameter base part 3. <P>COPYRIGHT: (C)2004,JPO</p> |
