| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bulb type LED lamp using a power LED, and capable of securing durability by allowing heat generated therefrom to be effectively radiated. <P>SOLUTION: A fan case 3 made of an aluminum cast having heat radiation holes 32 is installed in a lamp base part 1 having a base 11 screwed to a socket 8, a fan 4 is incorporated and arranged in the fan case 3, an LED mounting board 5 with multiple power LED elements 51 arranged thereon is mounted and fixed to its board mounting surface 31, and a dustproof cover 6 having convex lenses 62 at positions of the respective power LED elements 51 is mounted on a surface of the LED mounting board 5, whereby this LED lamp A is composed. Heat generated by the power LED elements 51 is radiated by the fan 4 in the fan case 3, and, as a result, the LED lamp A capable of eliminating trouble caused by heat generation and of highly securing durability can be provided. <P>COPYRIGHT: (C)2008,JPO&INPIT |
