| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-pressure discharge lamp in which a seal part between a translucent ceramic discharge vessel and a current introducing conductor has improved sealing performance, and a high-pressure discharge lamp lighting device and an illuminating apparatus using the high-pressure discharge lamp. SOLUTION: The high-pressure discharge lamp MHL includes a translucent ceramic discharge vessel 1 having an opening 1b, a current introducing conductor 2 inserted into and sealed to the opening, electrodes 3 connected to the current introducing conductor 2 and sealed in the translucent ceramic discharge vessel, and a discharge medium. The sealing of the current introducing conductor is performed by the fusion of ceramic in the opening of the translucent ceramic discharge vessel or/and a material of the same quality as that of a material of a part of the current introducing conductor which is opposite to the opening. COPYRIGHT: (C)2007,JPO&INPIT
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