| 摘要 |
PROBLEM TO BE SOLVED: To easily mount or demount each annular fluorescent lamp arranged in the central part and the periphery part of a luminaire main body. SOLUTION: Lamp mounting means 2 are arranged in the central part and the periphery part of a luminaire main body 1. The lamp mounting means 2 has a lamp socket 26 for connecting a base 4a of a annular fluorescent lamp 4 and a lamp holder 27 for holding a part of an arc tube 4b opposite to the base 4a of the annular fluorescent lamp 4. In the periphery of the luminaire main body 1, directions of the lamp socket 26 and the lamp holder 27 are arranged so as to almost perpendicular cross to a virtual line (a) connecting the center of the annular fluorescent lamp 4 and the center of the luminaire main body 1. |
