| 摘要 |
A fluorescent lamp includes sealed glass tube 1, a pair of opposed electrodes 2 provided in glass tube 1 wire lead 3 one end of which is connected to one of electrodes 2 and the other end of which passes through an end face of glass tube 1 in a gastight manner and is drawn to the outside of glass tube 1, cylindrical member 5 provided at an end of glass tube 1 and containing a portion of wire lead 3 that is drawn to the outside of glass tube 1, and solder portion 6 formed of a solder material contained in the interior of cylindrical member 5, wherein in the cylindrical member 5 an opening 8 is formed that is opposite the end face of the glass tube 1 and solder portion 6 is exposed to the outside in opening 8.
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