BULB-TYPE LAMP

摘要

PROBLEM TO BE SOLVED: To provide a bulb-type lamp 11 that can improve efficiency of heat dissipation and restrain the temperature increase of an LED 22.

SOLUTION: A substrate 12 is attached to one edge side of a radiator 13 and a globe 14 is attached covering the substrate 12. Heat-radiating fins 32 are provided on the other edge side of the radiator 13 and a fan 15 is rotatably provided inside the heat-radiating fins 32. A case 16 storing a circuit part A is attached to the other edge side of the radiator 13 and a cap 17 is provided to the case 16. By wind blast from the fan 15, the heat-radiating fins 32 are caused to work as a portion of the ventilation path to allow for ventilation of the inside of the radiator 13.

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