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    • 3. 发明授权
    • Projector
    • 投影机
    • US08766551B2
    • 2014-07-01
    • US13323095
    • 2011-12-12
    • Tetsuo TerashimaShun Sato
    • Tetsuo TerashimaShun Sato
    • H05B41/16
    • H05B41/2928G03B21/2026G03B35/16H04N9/3155Y02B20/208
    • A projector that outputs a first image and a second image alternately while performing switching between the first image and the second image, includes: a discharge lamp driving section that supplies, to a discharge lamp, a drive current that drives the discharge lamp; a state detecting section that detects a deteriorating state of the discharge lamp; and a control section that controls the discharge lamp driving section, wherein the control section controls the discharge lamp driving section so that the absolute value of the drive current becomes relatively small in a first period and relatively large in a second period and controls the discharge lamp driving section so that the ratio of the absolute value of the drive current in the second period to the absolute value of the drive current in the first period is increased with the progress of the deteriorating state.
    • 一种在执行第一图像和第二图像之间切换的同时交替地输出第一图像和第二图像的投影仪,包括:放电灯驱动部,向放电灯提供驱动放电灯的驱动电流; 状态检测部,其检测放电灯的劣化状态; 以及控制部,其控制放电灯驱动部,其中,所述控制部控制所述放电灯驱动部,使得所述驱动电流的绝对值在第一期间变得相对较小并且在第二期间相对较大,并且控制所述放电灯 使得第二期间的驱动电流的绝对值与第一期间的驱动电流的绝对值之比随着恶化状态的进行而增加。
    • 6. 发明授权
    • Projector that controls discharge lamp in response to deterioration
    • 投影机控制放电灯响应恶化
    • US08783876B2
    • 2014-07-22
    • US13316819
    • 2011-12-12
    • Tetsuo TerashimaShun Sato
    • Tetsuo TerashimaShun Sato
    • G03B21/16G05F1/00H05B37/02H05B39/04H05B41/36
    • G03B21/2053G03B35/16H04N9/3155H04N13/341H04N13/363H05B41/2887H05B41/2928
    • A projector that outputs a first image and a second image alternately, includes a discharge lamp driving section that supplies, to a discharge lamp, a drive current that drives the discharge lamp; a state detecting section that detects a deteriorating state of the discharge lamp; and a control section that controls the discharge lamp driving section, wherein the control section controls the discharge lamp driving section so that the absolute value of the drive current becomes relatively small in the first period and relatively large in the second period and, in the second period, the control section controls the discharge lamp driving section so that the discharge lamp driving section supplies an alternating current to the discharge lamp as the drive current and controls the discharge lamp driving section so that at least part of the frequency of the drive current is decreased with the progress of the deteriorating state.
    • 一种交替输出第一图像和第二图像的投影仪,包括:放电灯驱动部,向放电灯提供驱动放电灯的驱动电流; 状态检测部,其检测放电灯的劣化状态; 以及控制部,其控制放电灯驱动部,其中,所述控制部控制所述放电灯驱动部,使得所述驱动电流的绝对值在所述第一期间变得相对较小,并且在所述第二期间中相对较大, 期间,控制部分控制放电灯驱动部分,使得放电灯驱动部分向放电灯提供交流电作为驱动电流,并控制放电灯驱动部分,使得驱动电流的至少一部分频率为 随着恶化状况的进展而下降。
    • 7. 发明授权
    • Projector
    • 投影机
    • US08506092B2
    • 2013-08-13
    • US13209036
    • 2011-08-12
    • Shun SatoTetsuo Terashima
    • Shun SatoTetsuo Terashima
    • G03B21/20
    • G03B35/16G03B21/2026G03B21/2053H04N9/3155H04N13/341H04N13/363H05B41/2888
    • A projector includes a discharge lamp, a discharge lamp driver that supplies the discharge lamp with a current, a voltage detector that detects a drive voltage for driving the discharge lamp, and a controller that controls the discharge lamp driver. The controller carries out a first control process in which the discharge lamp driver is so controlled that an absolute magnitude of the drive current in a first period is smaller than that in a second period and that an AC current is supplied to the discharge lamp in a second period. The first control process includes a first electric power control process in which first average drive electric power is determined based on the voltage detected by the voltage detector and a current is supplied to the discharge lamp in such a way that average drive electric power is set at the first average drive electric power.
    • 投影仪包括放电灯,向放电灯供电的放电灯驱动器,检测用于驱动放电灯的驱动电压的电压检测器,以及控制放电灯驱动器的控制器。 控制器执行第一控制处理,其中放电灯驱动器被如此控制,使得第一周期中的驱动电流的绝对幅度小于第二周期中的驱动电流的绝对幅度,并且将AC电流提供给放电灯 第二阶段。 第一控制处理包括:第一电力控制处理,其中,基于由电压检测器检测到的电压来确定第一平均驱动电力,并且将电流以平均驱动电力设定在放电灯的方式供给到放电灯 第一平均驱动电力。
    • 8. 发明授权
    • Projector and method for controlling a projector discharge lamp
    • 用于控制投影仪放电灯的投影仪和方法
    • US09152027B2
    • 2015-10-06
    • US13566514
    • 2012-08-03
    • Tetsuo TerashimaShun Sato
    • Tetsuo TerashimaShun Sato
    • G03B21/20H05B41/288H05B41/292
    • G03B21/2026G03B21/2053H05B41/2883H05B41/2921H05B41/2928Y02B20/208
    • A control section relatively decreases an absolute value of a current supplied to a discharge lamp in a first period and relatively increases the absolute value in a second period, and in the second period, performs any one of a first control for supplying an alternating current to the discharge lamp, a second control for supplying, to the discharge lamp, a current in which a maximum duration of a first polarity is longer than that in the first control, and a third control for supplying, to the discharge lamp, a current in which a maximum duration of a second polarity is longer than that in the first control, and as the state of deterioration proceeds, decreases at least one of the maximum duration of the first polarity in the second control and the maximum duration of the second polarity in the third control.
    • 控制部在第一期间相对地减小提供给放电灯的电流的绝对值,并且相对地增加第二期间的绝对值,在第二期间,进行向交流电供给的第一控制中的任一个 放电灯,用于向放电灯提供第一极性的最大持续时间比第一控制中的最大持续时间长的电流的第二控制;以及用于向放电灯提供电流的第三控制, 其中第二极性的最大持续时间比第一控制中的最大持续时间长,并且随着劣化进行状态,减小第二控制中的第一极性的最大持续时间和第二极性的最大持续时间中的至少一个 第三个控制。