| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lamp device, and a lighting fixture using the same, with heat of a light-emitting body emitting illumination light efficiently radiated and with light extraction efficiency improved. <P>SOLUTION: The lamp device 1 is provided with a cylindrical device body 3 having an opening 14 at one end side 3a, a flat-plate part 15 at the other end side 3b, and an insertion-through part 16 formed at a center part of the flat-plate part 15, a heat radiation member 4 fitted at an outside of the flat-plate part 15 so as to be opposed to the insertion-through part 16, a light-emitting body 2 housed inside the device body 3 for causing emission light to be emitted from the opening 14 of the device body 3, a heat-conductive support member 5 supporting the light-emitting body 2 with the heat radiation member 4 in free heat conduction through the insertion-through part 16 for causing the light-emitting body 2 to be separated from the insertion-through part 16 of the device body 3, and a lighting device 6 having a circuit board 26 provided around the support member 5 so as to be further toward a flat-plate part 15 side than the light-emitting body 2. <P>COPYRIGHT: (C)2013,JPO&INPIT |
