| 摘要 |
A light source device includes a plurality of juxtaposed discharge tubes, each of which includes an internal electrode at least at one end, is made of transmissive material, has a phosphor layer formed at the inner side of the discharge tube, and is filled with a discharge gas containing xenon, an external electrode which is conductive and flat-shaped, is spaced from the plurality of discharge tubes by a specific distance, and is connected electrically to the grounding potential, and a conductive member electrically configured to connect the outer surface of all of the plurality of discharge tubes to the external electrode.
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