Abstract: An automotive discharge lamp, having an inner tube including a light emitting unit having a first space therein and seal portions formed on the light emitting unit, a discharge medium containing a first gas enclosed in the first space, a metal foil sealed in the seal portions, electrodes with one end connected to the metal foil and other end extended into the first space, and an outer tube connected to the inner tube to form a second space between the outer tube and the inner tube, wherein the second space has a second gas enclosed therein and the oxygen concentration in the second space is 1.0 volume % or less.

Abstract: Disclosed is an automotive discharge lamp, comprising an inner tube (1) including a light emitting unit (11) having a first space (15) therein and seal portions formed on the light emitting unit (11), a discharge medium containing a first gas enclosed in the first space (15), a metal foil (31) sealed in the seal portions (12), electrodes (32) with one end connected to the metal foil (31) and other end extended into the first space (15), and an outer tube (5) connected to the inner tube (1) to form a second space (51) between the outer tube (5) and the inner tube (1), wherein the second space (51) has a second gas enclosed therein and the second gas contains oxygen in a concentration of 1.0 volume % or less.