Patent ID: 6897612

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; wherein each of the pair of metal foils has an external lead on a side opposite to a side electrically connected to a corresponding electrode of the pair of electrodes and is directly attached to a glass portion extending from the luminous bulb, at least one of the pair of metal foils has a corrugated structure in which the metal foils are corrugated along a longitudinal direction of the metal foils, wherein the corrugated structure has a wave crest extending in a direction of a relatively shorter side of the metal foil, the corrugated structure is provided in the sealing portion, the metal foil having the corrugated structure has at least one wave portion in an area between an end of the electrode and an end of the external lead of the metal foil, and each of the pair of sealing portions is a portion in which each of the metal foils is directly attached to the glass portion, and the corrugated struture of the metal foil is directly attached to the glass portion.