Patent ID: 7009334
Filing Date: 2006-03-07
Classification: H01J

Abstract:
1. A fluorescent lamp comprising: a base; a first constituent tube that has a U-shaped discharge path and is disposed so that a first end and a second end thereof are positioned on the base side of the fluorescent lamp, and a turning portion thereof where the discharge path turns is positioned away from the base; a second constituent tube that has a U-shaped discharge path and is disposed so that a third end and a fourth end thereof are positioned on the base side of the fluorescent lamp, and a turning portion thereof where the discharge path turns is positioned away from the base; and a bridge that connects a first area in a vicinity of the first end of the first constituent tube with a second area in a vicinity of the third end of the second constituent tube so as to join the two discharge paths, wherein distances between the first constituent tube and the second constituent tube gradually become smaller from the base side toward the turning portion side of the fluorescent lamp, and D