METHOD OF WINDING METAL WIRE ON TUBE OUTER PERIPHERY, METHOD OF PRODUCING EXTERNAL ELECTRODE FLUORESCENT LAMP AND DEVICE FOR WINDING METAL WIRE ON TUBE OUTER PERIPHERY

摘要

PROBLEM TO BE SOLVED: To provide a method of producing winding means for winding and arranging a metal wire closely on the outer periphery of a tube at a stable pitch and an external electrode fluorescent lamp with improved light distribution characteristics and a light output in high yields.;SOLUTION: The metal wire winding method for winding the metal wire 10 fed out of a metal wire nozzle 9, while being rotated along a tube axis, on the outer periphery of the tube 1 fixedly at a predetermined pitch to the direction of the tube axis, comprises setting the major diameter of the tube 1 as D, the winding torque of the metal wire 10 as 0.8-0.16 kgf, the winding speed as 30 to 60 prm, and the location of the end of the winding nozzle on the outer periphery of the tube as +D/2 to -D from the tube axis as a center in horizontal direction and +D/2 to D from the tube axis as the center in vertical direction.;COPYRIGHT: (C)2001,JPO