| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device with improved heat dissipation performance without enlarging the device or adversely affecting a light distribution thereof.SOLUTION: The lighting device 1 is provided with a light-emitting element 2 provided in a board 3 on a heat-conductive pedestal 4, and a plurality of platy radiating fins 5 set at intervals away in a horizontal direction from the light-emitting element 2 to a side of the pedestal 4 where the light-emitting element 2 is provided, and extended in a direction away from the pedestal 4. At a tip end of the radiating fin 5 on the side away from the pedestal 4, a reflecting face 51 is formed slanted so as to reflect light from the light-emitting element 2 in an irradiating direction, and a space C between adjacent radiating fins 5 near roots of the radiating fins 5 and space D forward in an irradiation direction are communicate with each other. |
