| 摘要 |
PROBLEM TO BE SOLVED: To provide a rare-gas discharge lamp that enables improvements starting characteristics in darkness condition using a relatively simple constitution. SOLUTION: This discharge lamp is provided with a envelope 1, having a luminous layer 2 on the inner surface thereof, where a rare-gas is fed to be sealed into the interior space, a pair of external electrodes 5, 6 in a belt shape, comprised of metal members disposed being separated each other to form a first and second openings 7, 8 in the longitudinal direction on the periphery surface, excluding the end part thereof, a conducting member CS formed in nearly a belt shape on the inner surface of the envelope corresponding to an end part 1a of the envelope, where the external electrodes are not disposed, and an light-transmitting insulative member 4 where the external electrodes are attached to be covered on the peripheral surface of the envelope.
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