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公开(公告)号：US20090108770A1
公开(公告)日：2009-04-30
申请号：US12258958
申请日：2008-10-27
IPC分类号： H05B41/36
CPC分类号： H05B41/2928 , Y02B20/208
摘要： A light source includes an arc tube having a first electrode and a second electrode that emit light by discharge between the electrodes, and a driving unit that supplies a current between the first electrode and the second electrode and can change at least a waveform of frequency and waveform of the supplied current. The driving unit can perform lighting drive of the arc tube, using a driving waveform formed by combining a first lighting waveform having a maximum current value at a part other than a half-cycle rear end of the waveform and a second lighting waveform having a maximum current value at the half-cycle rear end of the waveform.
摘要翻译： 光源包括具有第一电极和第二电极的电弧管，所述第一电极和第二电极通过电极之间的放电发光;以及驱动单元，其在第一电极和第二电极之间提供电流，并且可以至少改变频率的波形， 供电电流的波形。 驱动单元可以使用通过组合在波形的半周期后端部分以外的部分具有最大电流值的第一发光波形和具有最大值的第二发光波形而形成的驱动波形来执行电弧管的点亮驱动 波形半周期的当前值。
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公开(公告)号：US20090085495A1
公开(公告)日：2009-04-02
申请号：US12237746
申请日：2008-09-25
IPC分类号： H05B41/36
CPC分类号： H05B41/2928 , Y02B20/208
摘要： A light source includes an discharge lamp including a first electrode and a second electrode emitting light by discharge between them, a drive unit performing a steady operation which supplies steady energy to the first and second electrodes and an initial operation which supplies energy to the first and second electrodes with an operation different from the steady operation before performing the steady operation, a determination unit determining states of the discharge lamp and a data storage unit storing plural initial power feeding conditions provided corresponding to states of the discharge lamp as examples of the initial operation and plural steady power feeding conditions provided corresponding to the states of the discharge lamp as examples of the steady operation, in which the drive unit performs the initial operation in any one of conditions selected from the plural initial power feeding conditions according to a determination result by the determination unit and performs the steady operation in any one of conditions selected from the plural steady power feeding conditions according to a determination result by the determination unit.
摘要翻译： 光源包括：放电灯，包括第一电极和通过它们之间放电发光的第二电极;驱动单元，执行向第一和第二电极提供稳定能量的稳定操作;以及初始操作，其向第一和第二电极提供能量; 在执行稳定操作之前具有与稳定操作不同的操作的第二电极，确定单元确定放电灯的状态和存储与放电灯的状态相对应地提供的多个初始供电条件的数据存储单元，作为初始操作的示例 以及对应于放电灯的状态提供的多个稳定供电条件，作为稳定操作的示例，其中驱动单元根据根据确定结果的多个初始供电条件中选择的任何一个条件执行初始操作 确定单元并执行 根据由确定单元的确定结果从多个稳定供电条件中选择的任何一个条件下的稳定操作。
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公开(公告)号：US20090237009A1
公开(公告)日：2009-09-24
申请号：US12401301
申请日：2009-03-10
IPC分类号： H05B41/36
CPC分类号： H05B41/2928
摘要： A discharge lamp lighting device includes: a power control circuit outputting DC current; an AC conversion circuit generating and outputting discharge lamp driving AC current by inverting the polarity of the DC current at a predetermined timing; a control circuit performing an AC conversion control process of controlling a polarity inversion timing of the discharge lamp driving AC current on the AC conversion circuit and performing an interval current control process of controlling a current value of the DC current every polarity inversion timing interval on the power control circuit; a detection unit detecting a discharge lamp driving voltage at the time of normal lighting; a history information storage periodically storing history information of the detected discharge lamp driving voltage, a statistics processing unit statistically processing the stored history information every predetermined period; and a statistical information storage storing information having been subjected to the statistical process as statistical information. Here, the control circuit sets and controls at least one of a frequency, a duty ratio, and a waveform of the discharge lamp driving AC current on the basis of a time-dependent tendency of the statistical information.
摘要翻译： 放电灯点亮装置包括：输出DC电流的功率控制电路; AC转换电路，通过在预定定时反转DC电流的极性来产生并输出放电灯来驱动AC电流; 执行AC转换控制处理的控制电路，该AC转换控制处理控制AC转换电路上的放电灯驱动AC电流的极性反转定时，并且执行在每个极性反转定时间隔上对DC电流的当前值进行控制的间隔电流控制处理 电源控制电路; 检测单元，其检测在正常点亮时的放电灯驱动电压; 历史信息存储器，周期性地存储检测到的放电灯驱动电压的历史信息;统计处理单元，每隔预定周期对所存储的历史信息进行统计处理; 以及将经过统计处理的信息作为统计信息存储的统计信息存储。 这里，控制电路基于统计信息的时间依赖倾向来设置和控制放电灯驱动AC电流的频率，占空比和波形中的至少一个。
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公开(公告)号：US20120026468A1
公开(公告)日：2012-02-02
申请号：US13186996
申请日：2011-07-20
申请人： Tetsuo TERASHIMA , Takeshi TAKEZAWA
发明人： Tetsuo TERASHIMA , Takeshi TAKEZAWA
CPC分类号： G02B27/2264 , G03B21/2053 , G03B35/16 , G09G3/002 , G09G3/003 , G09G3/3406 , G09G2320/0247 , H04N9/3155 , H04N13/341 , H04N13/363 , H05B41/2928
摘要： A projector adapted to switch between a right-eye image and a left-eye image at predetermined timings to output the right-eye image and the left-eye image alternately, includes: a discharge lamp; a discharge lamp drive section adapted to supply the discharge lamp with a drive current for driving the discharge lamp; and a control section adapted to control the discharge lamp drive section, wherein a period between the switching timings temporally adjacent to each other starts with a first period and ends with a second period, and the control section performs a second period alternating-current control process for controlling the discharge lamp drive section so that an absolute value of the drive current becomes relatively small in the first period, and becomes relatively large in the second period, and an alternating current is supplied to the discharge lamp as the drive current in the second period.
摘要翻译： 一种适于在预定定时在右眼图像和左眼图像之间切换以便交替地输出右眼图像和左眼图像的投影仪，包括：放电灯; 放电灯驱动部分，适于向放电灯提供用于驱动放电灯的驱动电流; 以及控制部分，适于控制放电灯驱动部分，其中在时间上相邻的切换定时之间的周期以第一周期开始，并以第二周期结束，并且控制部分执行第二周期交流控制处理 用于控制放电灯驱动部分，使得驱动电流的绝对值在第一周期中变得相对较小，并且在第二周期中变得相对较大，并且将交流电作为第二周期中的驱动电流提供给放电灯 期。
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公开(公告)号：US20120008106A1
公开(公告)日：2012-01-12
申请号：US13234570
申请日：2011-09-16
申请人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
发明人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
CPC分类号： H05B41/2888 , G03B21/20 , G03B21/2026 , Y02B20/202
摘要： A method for driving a discharge lamp that supplies an AC current to a discharge lamp having a first electrode and a second electrode so as to produce discharge and to cause the discharge lamp to emit light includes, during a steady operation in which the AC current is supplied to the discharge lamp, changing a difference between the absolute values of average current values for two polarities during one cycle of the AC current in accordance with a predetermined pattern.
摘要翻译： 一种用于驱动向具有第一电极和第二电极的放电灯提供AC电流以便产生放电并使放电灯发光的放电灯的方法包括：在AC电流为 提供给放电灯，根据预定图案，在AC电流的一个周期期间改变两个极性的平均电流值的绝对值之间的差。
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公开(公告)号：US20090207385A1
公开(公告)日：2009-08-20
申请号：US12372370
申请日：2009-02-17
申请人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
发明人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
CPC分类号： H05B41/2888 , G03B21/20 , G03B21/2026 , Y02B20/202
摘要： A method for driving a discharge lamp that supplies an AC current to a discharge lamp having a first electrode and a second electrode so as to produce discharge and to cause the discharge lamp to emit light includes, during a steady operation in which the AC current is supplied to the discharge lamp, changing a difference between the absolute values of average current values for two polarities during one cycle of the AC current in accordance with a predetermined pattern.
摘要翻译： 一种用于驱动向具有第一电极和第二电极的放电灯提供AC电流以便产生放电并使放电灯发光的放电灯的方法包括：在AC电流为 提供给放电灯，根据预定图案，在AC电流的一个周期期间改变两个极性的平均电流值的绝对值之间的差。
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公开(公告)号：US20080186456A1
公开(公告)日：2008-08-07
申请号：US11972810
申请日：2008-01-11
申请人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
发明人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
CPC分类号： G03B21/28 , H05B41/2883 , H05B41/2928 , Y02B20/208
摘要： A light source device includes: a first electrode and a second electrode, a light emitting tube, a main reflection mirror disposed on the first electrode side, a sub reflection mirror disposed on the second electrode side and a current driving device which supplies alternating current and performs power control such that supply energy during an anode period of the first electrode becomes smaller than supply energy during a cathode period of the first electrode at least a predetermined period immediately before a stable operation starts in the period from the start of power supply to the first and second electrodes to the start of the stable operation.
摘要翻译： 光源装置包括：第一电极和第二电极，发光管，设置在第一电极侧的主反射镜，设置在第二电极侧的副反射镜和提供交流电流的电流驱动装置， 执行功率控制，使得在第一电极的阳极周期期间的供电能量在第一电极的阴极周期期间的至少一个预定时间段之前变得小于在从供电开始到开始之后的稳定操作开始之前的供应能量 第一和第二电极开始稳定运行。
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公开(公告)号：US20090213341A1
公开(公告)日：2009-08-27
申请号：US12390812
申请日：2009-02-23
申请人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
发明人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
CPC分类号： G03B21/2026 , G03B21/2053 , H05B41/2928 , Y02B20/208
摘要： A method for driving a discharge lamp having a first electrode and a second electrode includes the steps of, in a situation where a tip portion of the first electrode becomes higher than a tip portion of the second electrode in temperature when power of the same amount is fed to the first and second electrodes during a steady operation, changing a difference between the absolute values of average current values for two polarities during one cycle of the AC current in accordance with a predetermined pattern, and setting an operation time ratio of the first electrode as an anode during one cycle so as to be smaller than an operation time ratio of the second electrode as an anode during one cycle.
摘要翻译： 用于驱动具有第一电极和第二电极的放电灯的方法包括以下步骤：在相同量的功率为相同量的功率时，第一电极的尖端部分的温度高于第二电极的尖端部分的情况下 在稳定操作期间馈送到第一和第二电极，根据预定模式改变AC电流的一个周期期间的两个极性的平均电流值的绝对值之间的差，并且设置第一电极的操作时间比 作为一个周期中的阳极，以便比在一个周期期间作为阳极的第二电极的操作时间比小。
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公开(公告)号：US20100302510A1
公开(公告)日：2010-12-02
申请号：US12788504
申请日：2010-05-27
CPC分类号： G03B21/14 , F21V7/0025 , F21V9/14 , G03B21/208 , G03B21/28
摘要： A light source device includes: a light source which emits light; a first reflector which surrounds a part of the light source and reflects the light emitted from the light source in the direction of an optical axis; and a second reflector which surrounds at least a part of the light source different from the part surrounded by the first reflector and reflects the light emitted from the light source toward the first reflector, wherein the position of a convergence spot of the light reflected by the second reflector is displaced from the position of an emission spot of the light source at least in the direction of a plane perpendicular to the direction of the optical axis.
摘要翻译： 光源装置包括：发光的光源; 第一反射器，其围绕光源的一部分并且沿光轴的方向反射从光源发射的光; 以及第二反射器，其围绕与由第一反射器包围的部分不同的光源的至少一部分，并且将从光源发射的光反射到第一反射器，其中由所述第一反射器反射的光的会聚点的位置 第二反射器至少在垂直于光轴方向的平面的方向上从光源的发射光斑的位置移位。
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公开(公告)号：US20100208212A1
公开(公告)日：2010-08-19
申请号：US12700505
申请日：2010-02-04
IPC分类号： G03B21/20
CPC分类号： G03B21/2013 , G03B21/2053
摘要： A projector includes: first and second lamps; a combining member configured to combine the light from the first and second lamps; a light modulation device arranged on the downstream side of an optical path of the combining member configured to provide higher modulation contrast with respect to the light emitted from the first lamp and entering in a state of being inclined in a first direction with respect to a system optical axis than modulation contrast with respect to the light emitted from the second lamp and entering in a state of being inclined in a second direction; and an illumination control device configured to turn ON the first lamp having the higher contrast with respect to the light modulation device on a priority basis for illumination of the light modulation device in a one-lamp mode in which only one of the first and second lamps is turned ON.
摘要翻译： 投影机包括：第一和第二灯; 组合构件，其被配置为组合来自所述第一和第二灯的光; 配置在所述组合部件的光路的下游侧的光调制装置，被配置为相对于从所述第一灯发射的光提供更高的调制对比度并进入相对于系统在第一方向上倾斜的状态 光轴比相对于从第二灯发射的光的调制对比度并进入在第二方向上倾斜的状态; 以及照明控制装置，其被配置为优先关闭具有相对于所述光调制装置的较高对比度的第一灯，以便以单灯模式照明所述光调制装置，其中所述第一和第二灯只有一个 被打开。
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