| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lighting lamp with temperature at a light-emitting part low, brightness of LED illumination high, and, especially, with high thermal emittance. <P>SOLUTION: The LED lighting lamp is provided with a resin-made LED lighting case 1 and a thermally conductive LED lighting substrate mounting base plate 2 with an LED lighting substrate 4 mounted. A contact area ratio which is an area ratio of a part of an upper surface of the resin-made LED lighting case 1 in contact with the LED lighting substrate mounting base plate 2 to an area of the upper surface of the lighting case 1 is to be 25% or more. A metal material is mounted along a heat dissipation surface 8 of the resin-made LED lighting case 1 to connect to the LED lighting substrate mounting base plate 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
