公开(公告)号：US20100128232A1

公开(公告)日：2010-05-27

申请号：US12624901

申请日：2009-11-24

申请人： Teppei KAGATA ,  Tetsu OKAMOTO ,  Tetsuji HIRAO

发明人： Teppei KAGATA ,  Tetsu OKAMOTO ,  Tetsuji HIRAO

IPC分类号： G03B21/20 ,  H05B41/36

CPC分类号： G03B21/2026 ,  G03B21/2053 ,  H05B41/2885 ,  H05B41/2886 ,  H05B41/2928 ,  Y02B20/202 ,  Y02B20/208

摘要： To stabilize the arc bright point position of a discharge lamp and suppress deformation of an electrode when an ultrahigh-pressure discharge lamp is operated with extremely low electric power, the lamp is operated by supplying power from a power supply device having a step-down chopper circuit and a full bridge circuit, a rectangular wave alternating current being supplied when it is operated with rated power or dimmed power (about 60 to 80% of rated power), a DC current being supplied during standby power operation of at most 0.5×P (W) with respect to the maximum operating power P (W). Moreover, the high-pressure discharge lamp light source device may be mounted on a projector for projecting images and the mode being changed to standby power operation when there is no change in an image signal, for example, for a prescribed period of time.

摘要翻译： 为了稳定放电灯的电弧亮点位置，并且当以超低功率运行超高压放电灯时，抑制电极的变形，通过从具有降压斩波器的电源装置供电来对灯进行动作 电路和全桥电路，当以额定功率或调光功率（约为额定功率的约60％至80％）运行时提供矩形波交流电，在待机功率运行期间提供至多0.5×P的直流电流 （W）相对于最大工作功率P（W）。 此外，高压放电灯光源装置可以安装在用于投影图像的投影仪上，并且当图像信号没有变化例如规定的时间段时，该模式被改变为待机功率操作。

公开(公告)号：US08044334B2

公开(公告)日：2011-10-25

申请号：US12624901

申请日：2009-11-24

申请人： Teppei Kagata ,  Tetsu Okamoto ,  Tetsuji Hirao

发明人： Teppei Kagata ,  Tetsu Okamoto ,  Tetsuji Hirao

IPC分类号： G01J1/32

CPC分类号： G03B21/2026 ,  G03B21/2053 ,  H05B41/2885 ,  H05B41/2886 ,  H05B41/2928 ,  Y02B20/202 ,  Y02B20/208

摘要： To stabilize the arc bright point position of a discharge lamp and suppress deformation of an electrode when an ultrahigh-pressure discharge lamp is operated with extremely low electric power, the lamp is operated by supplying power from a power supply device having a step-down chopper circuit and a full bridge circuit, a rectangular wave alternating current being supplied when it is operated with rated power or dimmed power (about 60 to 80% of rated power), a DC current being supplied during standby power operation of at most 0.5×P (W) with respect to the maximum operating power P (W). Moreover, the high-pressure discharge lamp light source device may be mounted on a projector for projecting images and the mode being changed to standby power operation when there is no change in an image signal, for example, for a prescribed period of time.

摘要翻译： 为了稳定放电灯的电弧亮点位置，并且当以超低功率运行超高压放电灯时，抑制电极的变形，通过从具有降压斩波器的电源装置供电来对灯进行动作 电路和全桥电路，当以额定功率或调光功率（约为额定功率的约60％至80％）运行时提供矩形波交流电，在待机功率运行期间提供至多0.5×P的直流电流 （W）相对于最大工作功率P（W）。 此外，高压放电灯光源装置可以安装在用于投影图像的投影仪上，并且当图像信号没有变化例如规定的时间段时，该模式被改变为待机功率操作。