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    • 35. 发明授权
    • Electric supply device
    • 供电装置
    • US08598801B2
    • 2013-12-03
    • US13471082
    • 2012-05-14
    • Takashi YamashitaHirohisa Iwabayashi
    • Takashi YamashitaHirohisa Iwabayashi
    • H05B41/16H05B41/24H05B37/02H05B39/04H05B41/36G05F1/00
    • H05B41/2883H05B41/388
    • An electric supply device for a high-pressure discharge lamp comprising: an electric supply device control unit, having a function of switching between a steady lighting mode and a low power lighting mode in which electric power lower than the electric power in the steady lighting mode is supplied to the high pressure discharge lamp. While in the low power lighting mode, predetermined base current is continuously supplied to the high pressure discharge lamp and a current supply command signal is sent so that boost current obtained by superimposing current having a predetermined magnitude on the base current, is periodically supplied thereto, and a luminance control signal for adjusting the luminance of a video signal of a liquid crystal projector apparatus according to a magnitude of the electric power of the high pressure discharge lamp, which is operated responding to the supply of the boost current, is sent.
    • 一种用于高压放电灯的电源装置,包括:电源装置控制单元,具有在稳定点亮模式和低功率照明模式之间切换的功能,其中电力低于稳定点亮模式中的电力 被提供给高压放电灯。 在低功率照明模式中,将预定的基极电流连续供给高压放电灯,并且发送电流指令信号,使得通过将具有预定量值的电流叠加在基极电流上而获得的升压电流被周期性地提供给其, 并且发送用于根据响应于升压电流的供应而操作的高压放电灯的电力的大小来调整液晶投影仪装置的视频信号的亮度的亮度控制信号。
    • 37. 发明申请
    • Light source apparatus
    • 光源装置
    • US20110221355A1
    • 2011-09-15
    • US13064193
    • 2011-03-10
    • Kazuhiro GotoTakashi YamashitaKosuke Saka
    • Kazuhiro GotoTakashi YamashitaKosuke Saka
    • H05B41/16
    • G03B21/14G03B21/2026G03B21/206H04N9/3114H04N9/3155H05B41/2928
    • In a light source apparatus, an alternating current is supplied to a high pressure discharge lamp from a power supply apparatus to light the lamp. The arrangement state of the lamp is detected by a detection circuit. When the lamp is horizontally arranged, electric energy, whose flow direction is from one electrode of the lamp to the other electrode, is set to be approximately the same as electric energy, whose flow direction is from the other electrode to the one electrode. When the lamp is vertically arranged, while a cycle, which is the same as a polarity change cycle in the horizontal arrangement, is maintained, electric energy, which flows from an upper electrode to a lower electrode, is set to be smaller than electric energy, which flows from the lower electrode to the upper electrode.
    • 在光源装置中,从供电装置向高压放电灯提供交流电以点亮灯。 灯的布置状态由检测电路检测。 当灯水平布置时,其流动方向从灯的一个电极到另一个电极的电能被设置为与流动方向从另一个电极到一个电极的电能大致相同。 当灯垂直布置时,在保持与水平布置中的极性变化周期相同的周期的同时,从上电极向下电极流动的电能被设定为小于电能 ,其从下电极流到上电极。