| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lighting device with improved appearance in a lighted state, though LED light sources are used. <P>SOLUTION: The LED lighting device includes a cylindrical tube body 11, a substrate 13 inwardly packaged along an axial line direction of the tube body 11, and the plurality of LED light sources 12 mounted on the substrate 13. A wall face of the tube body 11 has thickened parts 11a made thicker inward than other sites. <P>COPYRIGHT: (C)2013,JPO&INPIT |
