LOW-PRESSURE DISCHARGE LAMP AND LUMINAIRE PROVIDED WITH SUCHA LAMP

摘要

The low pressure discharge lamp comprises a tubular discharge vessel (1). At each of its end portions (2, 3) the vessel (1) is fused to a respective metal tube (5) having an uncovered outer surface outside said vessel. A respective seal ed glass tube (6) is fused to the metal tubes (5). Ignition aids (18, 28, 40) may be present. The simple construction of the lamp allows for an easy manufacture and a high la mp quality, even at long lengths and/or small diameters of the discharge vessel. The lam p may have an ionizable filling of rare gas or may contain mercury in addition. A fluorescent powder may be present in the discharge vessel. The lamp (72) and a luminaire (70, 71) comprising the lamp may be used e.g. for display or signalling purposes.