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1. 发明申请

US20100244720A1 HIGH PRESSURE DISCHARGE LAMP LIGHT SOURCE DEVICE 有权
标题翻译：高压放电灯光源设备
公开(公告)号：US20100244720A1
公开(公告)日：2010-09-30
申请号：US12750064
申请日：2010-03-30
申请人： Takuya TSUKAMOTO , Minoru FUKUDA , Tomoyoshi ARIMOTO
发明人： Takuya TSUKAMOTO , Minoru FUKUDA , Tomoyoshi ARIMOTO
IPC分类号： H05B41/36
CPC分类号： H05B41/2928 , H05B41/2882 , H05B41/3928 , Y02B20/202 , Y02B20/208
摘要： For maintaining the projections of the electrode tip ends in the ideal condition and maintaining a stable arc even if the lamp is lighted with a lamp power of at most 70% of the rated electric power, a high pressure discharge lamp light source device is provided, comprised of a high pressure discharge lamp having a discharge vessel made from quartz glass and a pair of electrodes arranged oppositely to each other with a spacing of at most 2.0 mm, each electrode having a projection formed at a tip end thereof, and mercury of at least 0.20 mg/mm3 and a halogen being enclosed in said discharge vessel; and a power supply device for supplying alternating current to said high pressure discharge lamp, wherein the power supply device is adapted to switch between a nominal electric power lighting mode and a low electric power lighting mode, said current in the low electric power lighting mode having a defined current value in the range of 40 to 70% of a nominal electric power consumption, and wherein said power supply device, in the low electric power lighting mode, is adapted to alternatingly supply to said high pressure discharge lamp a base current having a defined frequency chosen from a range between 100 Hz and 5 kHz and a boost current having a higher current value than a current value of said base current.
摘要翻译：为了将电极末端的突起保持在理想状态并保持稳定的电弧，即使在灯功率达到额定功率的70％以上的情况下，提供高压放电灯光源装置，包括具有由石英玻璃制成的放电容器的高压放电灯和彼此相对设置的间隔至多为2.0mm的一对电极，每个电极的顶端形成有突起，至少0.20mg / mm 3，卤素封闭在所述放电容器中; 以及用于向所述高压放电灯提供交流电的电源装置，其中所述电源装置适于在标称电力照明模式和低电力照明模式之间切换，所述低电力照明模式中的所述电流具有在标称电力消耗的40至70％的范围内的限定电流值，并且其中所述电源装置在低电力照明模式中适于对所述高压放电灯交替地供应具有从100Hz和5kHz之间的范围选择的定义频率和具有比所述基极电流的当前值更高的电流值的升压电流。

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