| 摘要 |
The invention describes a fluorescent lamp comprising four or a larger, even number of glass tubes (3, 6) connected by respective bridge parts (5, 9, 10) to form a discharge path through the tubes, said lamp is constructed from two or more dual shaped lamp parts (1, 2) each comprising two substantially straight tubes (3) parallel to each other, each tube comprising a sealed end (4), and a first bridge part (5) near the sealed ends to join the tubes, wherein the bridge part (5) of one dual shaped lamp part (1) is located at a distance d1 from the sealed ends (4) of the tubes (3), whereas the bridge part (9) of the other dual shaped lamp part(s) (2) is located at a distance d2 from the sealed ends (7) of the tubes (6), said distance d2 is shorter than the distance d1 such that only a cold spot (8) is formed in a tube end part of one of the dual shaped lamp parts (1).
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