Patent ID: 6876151

Claim:
A discharge lamp comprising: a luminous bulb in which a luminous material is enclosed and a pair of electrodes are opposed in the luminous bulb; and a pair of sealing portions for sealing a pair of metal foils electrically connected to the pair of electrodes, respectively, each of the pair of sealing portions including a shrink seal structure and each of the pair of metal foils including an external lead on a side opposite to a side electrically connected to a corresponding electrode of the pair of electrodes, wherein at least one of the pair of sealing portions is provided with at least two constricted portions, each of the at least two constricted portions being formed along an outer surface of the at least one sealing portion in an area between an end of the electrode and an end of the external lead, but not formed in an area in which the electrode and the metal foil are connected and not formed in an area in which the external lead and the metal foil are connected.