Fluorescent lamp having three electrodes for starting at low temperatures

摘要

A fluorescent lamp having an improved starting performance, especially at low temperatures. A gas under a low pressure is sealed in a glass tube having a pair of electrodes mounted thereon, and a fluorescent material is coated on the inner surface of the glass tube, the fluorescent material being activated to emit light by a discharge between the pair of electrodes. A third electrode is provided between the pair of electrodes, the third electrode being connected to one of the pair of electrodes.