| 摘要 |
PROBLEM TO BE SOLVED: To enhance a heat radiating effect of a luminaire. SOLUTION: A base board installing body 36 is installed inside a chassis 22, and a circuit board 61 is installed on this base board installing body 36. The under side of the chassis 22 is covered with a reflector 88. A main body heat radiating port 30 is formed in an outer peripheral surface of the chassis 22. A reflector heat radiating port 92 is formed in an under surface of the reflector 88. A second installing body heat radiating port 58 and a base board heat radiating port 77 to vertically communicate with each other, are formed in the base board installing body 36 and the circuit board 61. A switch 62 and a power source device 77 are installed on an under surface of the circuit board 61. A heat radiating body 69 having plural heat radiating plates 69b are arranged ire the power source device 77. The second heat radiating port 58 is formed so as to be positioned between the mutual respective heat radiating plates 69b. |
