Patent ID: 6456001
Filing Date: 2002-09-24
Classification: H01J

Abstract:
A fluorescent lamp comprisinga fluorescent tube having lead wires led from both ends of the tube, the tube having a structure in which both ends of the tube are positioned adjacent each other, a holder holding said fluorescent tube, a lighting circuit board provided with a lighting circuit for lighting said fluorescent tube, connecting terminals connected to said lighting circuit, the connecting terminals being disposed at a peripheral area of one side of said lighting circuit board and arranged adjacently to each other along an arc line, and a case connected to said holder and housing said lighting circuit board; wherein first V-shaped or Y-shaped cut-outs, which widen toward an outer side of the lighting circuit board, are formed at the end portion of said lighting circuit board so as to be provided for the respective connecting terminals, the connecting terminals being positioned in the vicinity of the inner narrow portions of said cut-outs, second V-shaped or Y-shaped cut-outs, which widen as the distance from said fluorescent tube increases, are provided on a side wall formed on said holder opposite to said fluorescent tube, the broad portion of the cut-outs of said holder and the broad portion of the cut-outs of said lighting circuit board being arranged facing each other; and the lead wires of said fluorescent tube are connected to said connecting terminals by welding.