| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge lamp equipped with an auxiliary light source for promoting ionization of a discharge medium and lowering absolute value of high voltage impressed at start. SOLUTION: The discharge lamp (Ld) provided with a pair of electrodes (E1, E2) for the main discharge set in opposition inside a main discharge vessel (Bd) with a discharge medium for main discharging sealed in and a first and a second electrode-sealing parts (S1, S2) for passing electricity to the pair of electrodes for main discharge is so structure that a starting electrode (Et) is set apart from the electrodes for main discharging so as not to come in contact with a discharge zone (Zd) for main discharge, and an auxiliary light source (Lx) consisting of an auxiliary discharge vessel (Bx) with a discharge medium sealed in for auxiliary discharge is mounted in the vicinity of at least either side face of the electrode-sealing parts (S1, S2) and formed separately from the electrode-sealing parts (S1, S2), with a first outer electrode (Eu) set on the outside face of the auxiliary discharge vessel (Bx). COPYRIGHT: (C)2003,JPO
|
