| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a luminaire and its assembling method wherein a mounting part of a lamp socket can be used in common when the luminaire body is used in common with two kinds of lamps having different annular diameters, and wherein reduction of drilling and threading works and simplification of mold structure or the like can be promoted. <P>SOLUTION: The lamp socket 6 has a bracket 9 to mount a lamp pin of a ring shaped lamp 8 by inserting it, and a mounting part 10 which installs a ring center O of the ring shaped lamp 8 at the luminaire body 3, so that the ring center O opposes to a fixed position of the luminaire body 3. Either one of the ring shaped lamp 8 having a ring diameter A or a ring shaped lamp 8a having a ring diameter B smaller than the ring diameter A is arranged on the luminaire body 3, while the lamp socket 6 is set to have a distance of the radial direction of the ring shaped lamps 8, 8a in between the bracket 9 and the mounting part 10 to become (A-B)/4 when the mounting part 10 is near the lamp tube of the ring shaped lamp 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
