To provide a light-emitting diode lamp having a high heat radiation efficiency.
The light-emitting diode lamp includes a heat radiator, a heat pipe connected to the heat radiator, and a light-emitting diode connected to the heat pipe. The heat radiator has a connecting part and a plurality of fins to be installed on the outer surface of the connecting part, and the fins have a plate-shape body and a flange to extend perpendicularly to the body from the periphery of the body. The flange of the plurality of fins forms an annular plane in the heat radiator, and the heat pipe includes a condensing part installed along the annular plane in the heat radiator, an evaporating part which is parallel to the condensing part and is located at the upper part of the condensing part, and a heat insulation part for connecting the condensing part and the evaporating part. The light-emitting diode is installed at the evaporating part and emits light toward the direction separating from the heat radiator.
HUNG JUI-WEN
HWANG CHING-BAI
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro