DISCHARGE TUBES

摘要

Discharge tubes for a lamp include a body portion (61) with a first end (61a), a second end (61b), and a tubular member (62) defining an interior area (74). The tubular member extends along an elongated axis (58) between the first end and the second end. The discharge tube includes a first end portion provided (64a) at the first end of the body portion. The first end portion includes a first tapered portion (68) that is tapered in a direction (59) extending substantially perpendicular from the elongated axis. The first tapered portion includes an interior surface (72) facing the interior area. The tapered portion spans between a maximum extent (68a) in the direction of the elongated axis and a minimum extent (68b) in the direction of the elongated axis.