| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-pressure discharge lamp having excellent characteristics. SOLUTION: The high pressure discharge lamp 100 is provided with an arc tube 10 with a pair of electrodes (12, 12') arranged oppositely, and inside the luminous tube 10, at least mercury and halogen are contained, and that, at least one kind of metal selected from the group of Pt, Ir, Rh, Ru and Re exists. COPYRIGHT: (C)2004,JPO
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