| 摘要 |
The present invention relates to a light injected with a heat transfer liquid that accommodates a light-emitting unit in a body configured to have a light-transmitting body and a housing, and is filled with the heat transfer liquid therein so that heat from the light-emitting unit is irradiated through the heat transfer liquid, wherein an upward flow of the heat transfer liquid caused by the heat of the light-emitting unit is guided to a wide inner side surface of the light-transmitting body or the housing so as to increase heat dissipation efficiency. According to the present invention, a flow guide (20), in which a band is wound in a spiral shape so as to gradually widen upward and having a conical coil spring shape where the width direction of the band wound in the spiral shape is wound toward an inner portion of the spiral shape, is provided on an upper surface of the light-emitting unit. |
