| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lighting device which can dissipate heat in the vicinity of a base and is independent of the size of a partial fixture. <P>SOLUTION: An LED lighting device 1 which can be an alternative for a dichroic halogen lamp includes a base 5 attached to a lighting appliance, an insulation portion 4 incorporating a power supply portion 3 which converts AC power supply to DC power supply, an LED module 24 which emits light by electric power converted through the power supply portion 3, and a mirror 21 which is opened in a tapered shape at the outer peripheral part of the LED module 24. The insulation portion 4 provided at the outer periphery of the power supply portion 3 is constituted of a metal member, and an insulation film such as a fluororesin film is formed at the metal member on the side of the power supply portion 3, and a radial fin 43f is provided at the outer peripheral part of the metal member. <P>COPYRIGHT: (C)2011,JPO&INPIT |
