| 摘要 |
PURPOSE:To reduce manufacturing cost, and to miniaturize a shade as well by forming the flat shape of the shade into an irregular triangle, and by storing the entire lighting device in the shade. CONSTITUTION:The flat shape of a shade 13 is formed into a triangle constructed by a side running along a longitudinal direction of a single base fluorescent lamp and by the other two sides, and it is formed eccentrically in such a way that the top where the other two sides meet each other is closer to the one on the side of a socket 3 of the remainder of the two tops. A switch board 2 is arranged on the back surface of the socket 3, while a ballast board 1 is arranged on the point closer to the side of the top where the other two sides meet each other. The flat shape of the shade can be miniaturized thereby, and the connection interval of respective parts for wiring can be shortened, whereby the assembly cost can be reduced. |
