| 摘要 |
PROBLEM TO BE SOLVED: To provide an embedded type luminaire which enables improvement of heat radiation efficiency of radiation fins and achieves weight reduction.SOLUTION: An embedded type luminaire has: a substrate in which light emitting elements (LEDs) are provided on a surface; a heat sink attached to a rear surface of the substrate and configured to radiate heat, which is generated by the light emitting elements (LEDs) and transmitted thereto, into air; and a power source device which supplies electric power to the LEDs. The power source device is disposed on an upper surface of the heat sink and at least one slit is provided in at least one of radiation fins of the heat sink.SELECTED DRAWING: Figure 1 |
