| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device in which heat of a heat sink is hardly transmitted to a cover. <P>SOLUTION: The lighting device has an inner tube and an outer tube made of translucent material, and a connecting wall to connect the inner and the outer tubes, and is provided with a tubular cover formed in dual structure in which the inside of the inner tube is a housing space and a hollow portion is demarcated by the inner tube, the outer tube and the connecting wall inside them, and a light emitting means which is fixed inside the housing space of the tubular cover. <P>COPYRIGHT: (C)2011,JPO&INPIT |
