Method of producing a low-pressure mercury vapor discharge lamp

摘要

A low-pressure mercury vapour discharge lamp comprises two or more glass discharge tubes disposed in side-by-side relationship. The tubes are joined by a tapered joint region defining a generally U-shaped connection between the tubes. The joint between the tubes is produced by heating the open ends of the tubes, butt-joining the thus-softened ends, and then tapering the joint by stretching same and bending it until the tubes reach their required disposition.