| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device that can be downsized while having excellent heat radiation prop. <P>SOLUTION: The lighting device includes a board wherein a plurality of light-emitting elements are arranged, and a support part equipped with a base part having a first surface for mounting the board and a second surface opposite to the first surface and a translucent part arranged to cover a light-emitting surface side of the light-emitting elements. An outer shape of the cross part of the translucent part is a part of a circle in a direction orthogonal to an axial direction of the lighting device. <P>COPYRIGHT: (C)2013,JPO&INPIT |
