| 摘要 |
PROBLEM TO BE SOLVED: To easily and surely connect a lamp to a socket even when the diameter of the lamp is different without needing another member for positioning the lamp to the socket. SOLUTION: A luminaire is provided with a lamp holding unit 7 with holders for housing the sockets arranged at both ends of a cylinder 2 for housing a straight-tube fluorescent lamp 1; and is so structured that the lamp 1 is inserted from one end side of the lamp holding unit 7, and a lamp pin 1a is connected to a conductive plate of the socket. The contact area of the conductive plate 9 of the socket 4 on the other end side of the lamp holding unit 7 is increased so that the lamp pin 1a contacts it against displacement of the lamp 1 from the center axis T of the lamp holding unit. Thereby, the tip side of the lamp tilts by its own weight into a space formed by the difference between the lamp diameter on the tip side in the lamp inserting direction and the inside diameter of the cylinder, whereby the lamp can surely be connected to the socket even if it is displaced from the center T of the socket 4, and it can cope with the case where the diameter of the lamp is different. COPYRIGHT: (C)2005,JPO&NCIPI |
