公开(公告)号：US20080297739A1

公开(公告)日：2008-12-04

申请号：US12128910

申请日：2008-05-29

申请人： Kentaro YAMAUCHI ,  Shigeyasu SOMA

发明人： Kentaro YAMAUCHI ,  Shigeyasu SOMA

IPC分类号： G03B21/14 ,  H05B41/36

CPC分类号： H05B41/2928 ,  G03B21/2026 ,  G03B21/206 ,  Y02B20/208

摘要： A projector includes an discharge lamp which has a first electrode and a second electrode and emits light by generating discharge between the first and second electrodes, and a driving system which supplies power by alternating polarities of the first electrode and the second electrode. The driving system is operable in a restoration mode. The driving system melts surface layers of a tip and a surrounding area of the tip extending from a main body of one of the first and second electrodes, and expands a new tip on a tip area of the main body of the one electrode in the restoration mode.

摘要翻译： 投影仪包括具有第一电极和第二电极并且通过在第一和第二电极之间产生放电而发光的放电灯，以及通过第一电极和第二电极的交替极性提供电力的驱动系统。 驱动系统在恢复模式下可操作。 所述驱动系统熔化从所述第一和第二电极之一的主体延伸的尖端的尖端和周围区域的表面层，并且在所述恢复部中的所述一个电极的主体的尖端区域上扩展新的尖端 模式。

公开(公告)号：US20100123406A1

公开(公告)日：2010-05-20

申请号：US12618363

申请日：2009-11-13

申请人： Shigeyasu SOMA ,  Tetsuo TERASHIMA

发明人： Shigeyasu SOMA ,  Tetsuo TERASHIMA

IPC分类号： H05B41/36

CPC分类号： H05B41/2928 ,  Y02B20/208

摘要： A driving device for a discharge lamp includes: an alternating current supply section adapted to supply two electrodes of the discharge lamp with an alternating current; a frequency modulation section adapted to modulate a frequency of the alternating current, which the alternating current supply section supplies, in accordance with a predetermined condition of the discharge lamp within a range between a predetermined upper limit frequency and a predetermined lower limit frequency; and a modulation condition setting section adapted to set a modulation condition of the frequency by the frequency modulation section, wherein the modulation condition setting section sets the modulation condition so that the lower limit frequency when the discharge lamp is in a first state is higher than the lower limit frequency when the discharge lamp is in a second state in which a flicker is harder to occur than in the first state.

摘要翻译： 一种用于放电灯的驱动装置，包括：交流电源部分，用于向放电灯的两个电极提供交流电; 频率调制部分，适于根据放电灯的预定条件在预定上限频率和预定下限频率之间的范围内调制交流电源部分提供的交流电频率; 以及调制条件设定部，其适于通过所述频率调制部设定所述频率的调制条件，其中，所述调制条件设定部设定所述调制条件，使得当所述放电灯处于第一状态时的下限频率高于 当放电灯处于比第一状态更难发生闪烁的第二状态时的下限频率。