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1.发明申请公开(公告)号：US20120249011A1
公开(公告)日：2012-10-04
申请号：US13469362
申请日：2012-05-11
IPC分类号： H05B41/16
CPC分类号： H01J61/86 , G03B21/00 , G03B21/005 , H05B41/2883 , H05B41/2928
摘要： To prevent biased consumption of electrodes in a discharge lamp and to prevent biased precipitation of the electrode material, a light source is provided. The light source device has a discharge lamp that emits light by discharge between a first electrode and a second electrode; and a driver that supplies alternating current to the first and the second electrodes so as to maintain the discharge, and changes duty ratio of the alternating current in accordance with predetermined pattern. The predetermined pattern includes a plurality of section periods for which the duty ratio maintains mutually different values for a predetermined period.
摘要翻译： 为了防止放电灯中电极的偏置消耗，并且为了防止电极材料的偏析，提供光源。 光源装置具有通过在第一电极和第二电极之间放电而发光的放电灯; 以及驱动器，其向第一和第二电极提供交流电流以保持放电，并且根据预定模式改变交流电的占空比。 预定模式包括多个段周期，占空比在预定周期内维持相互不同的值。
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2.发明授权公开(公告)号：US08217582B2
公开(公告)日：2012-07-10
申请号：US12640356
申请日：2009-12-17
IPC分类号： H05B37/02
CPC分类号： H05B41/3928 , H05B41/2883 , H05B41/2928 , Y02B20/202
摘要： A light source device includes: a discharge lamp provided with two electrodes; a discharge lamp lighting section adapted to light the discharge lamp by supplying the discharge lamp with electrical power while alternately switching a polarity of one of the electrodes of the discharge lamp with respect to the other of the electrodes; and a time-division color separation section adapted to receive light emitted from the discharge lamp in a lighted state and sequentially emit light beams with colors different from each other, wherein the discharge lamp lighting section switches the polarity in sync with a change in the color of the light beam emitted from the time-division color separation section, and provides, as retentive periods in which a duty ratio, which is a ratio of a positive polarity period with the polarity kept positive to a period of the polarity switching, is retained at a constant value over a predetermined period of time, a first retentive period and a second retentive period different in the duty ratio from the first retentive period, thereby modulating the duty ratio.
摘要翻译： 光源装置包括：具有两个电极的放电灯; 放电灯点亮部分，其适于通过向放电灯提供电力来点燃放电灯，同时交替地切换放电灯的一个电极相对于另一个电极的极性; 以及时分颜色分离部，其适于在点亮状态下接收从放电灯发出的光，并且顺序地发射具有彼此不同的颜色的光束，其中放电灯点亮部分与极性同步地改变颜色 并且提供作为将正极性周期与正极性保持为正极的占空比保持为极性切换的周期的保持期间的保持期间 在预定时间段内具有恒定值，与第一保持周期的占空比不同的第一保持周期和第二保持周期，从而调制占空比。
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公开(公告)号：US20120169247A1
公开(公告)日：2012-07-05
申请号：US13396916
申请日：2012-02-15
申请人： Takeshi Takezawa , Kentaro Yamauchi
发明人： Takeshi Takezawa , Kentaro Yamauchi
IPC分类号： H05B41/16
CPC分类号： H05B41/2928 , Y02B20/208
摘要： In at least one embodiment of the disclosure, a method for driving a discharge lamp includes changing a duty ratio of an AC current to be supplied between a first electrode and a second electrode of the discharge lamp in accordance with a predetermined pattern, and setting a current value when the first electrode operates as an anode during one cycle so as to be smaller than a current value when the second electrode operates as an anode during one cycle.
摘要翻译： 在本公开的至少一个实施例中，用于驱动放电灯的方法包括根据预定模式改变要放电灯的第一电极和第二电极之间提供的AC电流的占空比，并且将 当第一电极在一个周期期间作为阳极操作时的电流值，以便当在一个周期期间第二电极作为阳极操作时，电流值小于电流值。
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公开(公告)号：US08138684B2
公开(公告)日：2012-03-20
申请号：US12401926
申请日：2009-03-11
IPC分类号： H05B41/36
CPC分类号： H05B41/2928 , G03B21/005 , H05B41/2886 , Y02B20/202
摘要： A discharge lamp lighting device includes: a power control circuit outputting DC current; an AC conversion circuit being supplied with the DC current and generating and outputting discharge-lamp driving AC current by inverting the polarity of the DC current at a predetermined time; and a control unit performing a duty ratio control process of controlling a duty ratio on the basis of a polarity inversion time 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 time interval on the power control circuit. Here, the control unit performs the interval current control process so as to control a difference between an average value and a maximum value of the DC current of each polarity inversion time interval on the basis of a difference between the duty ratio and a predetermined reference duty ratio.
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转换电路被提供有直流电流，并通过在预定时间反转DC电流的极性来产生和输出放电灯驱动AC电流; 以及控制单元，执行基于AC转换电路上的放电灯驱动AC电流的极性反转时间来控制占空比的占空比控制处理，并且执行控制所述AC转换电流的当前值的间隔电流控制处理 直流电流每个极性反转时间间隔在功率控制电路上。 这里，控制单元进行间隔电流控制处理，以根据占空比和规定的基准负载之间的差来控制各极性反转时间间隔的直流电流的平均值和最大值之差 比。
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5.发明授权Driving method and driving device for discharge lamp, light source device, and image display device 有权放电灯，光源装置和图像显示装置的驱动方法和驱动装置公开(公告)号：US08076861B2
公开(公告)日：2011-12-13
申请号：US12389747
申请日：2009-02-20
CPC分类号： H05B41/2928
摘要： A method for driving a discharge lamp that lights by performing discharge between two electrodes while alternately switching a polarity of a voltage applied between the two electrodes includes: modulating an anode duty ratio, which is a ratio of an anode time for which one of the electrodes operates as an anode in one period of the polarity switching, by setting first and second periods with different anode duty ratios; and setting the first period, in which the anode duty ratio is higher than that in the second period, longer than the second period in one modulation period, which includes the first and second periods and for which the modulation is performed, when a predetermined condition is satisfied.
摘要翻译： 驱动通过在两个电极之间进行放电而发光的放电灯的方法，同时交替地切换施加在两个电极之间的电压的极性，包括：调节阳极占空比，阳极占空比是阳极时间的比率， 通过设置具有不同阳极占空比的第一和第二周期，在极性切换的一个周期中作为阳极工作; 并且在预定条件下，将包括第一和第二周期并且进行调制的一个调制周期中的阳极占空比高于第二周期的第一周期设定为长于第二周期 满意
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公开(公告)号：US07946715B2
公开(公告)日：2011-05-24
申请号：US12237746
申请日：2008-09-25
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：US20090218955A1
公开(公告)日：2009-09-03
申请号：US12393728
申请日：2009-02-26
申请人： Takeshi Takezawa , Kentaro Yamauchi
发明人： Takeshi Takezawa , Kentaro Yamauchi
IPC分类号： H05B41/16
CPC分类号： H05B41/2928 , Y02B20/208
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 the steps of, during a steady operation in which the AC current is supplied to the first electrode and the second electrode, when power of the same amount is fed to the first and second electrodes, and a tip portion of the first electrode becomes higher than a tip portion of the second electrode in temperature, changing the duty ratio of the AC current to be supplied between the first electrode and the second electrode in accordance with a predetermined pattern, and setting a current value when the first electrode operates as an anode during one cycle so as to be smaller than a current value when the second electrode operates as an anode during one cycle.
摘要翻译： 一种用于驱动放电灯的方法，该放电灯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，包括以下步骤：在稳定操作期间， 当相同量的功率被供给到第一和第二电极时，AC电流被提供给第一电极和第二电极，并且第一电极的尖端部分的温度变得高于第二电极的尖端部分 根据预定图案在第一电极和第二电极之间提供的AC电流的占空比，并且当在一个周期期间第一电极作为阳极操作时设定电流值，使其小于电流值 当第二电极在一个周期期间作为阳极工作时。
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公开(公告)号：US20090153073A1
公开(公告)日：2009-06-18
申请号：US12314178
申请日：2008-12-05
IPC分类号： H05B41/36
CPC分类号： H01J61/86 , G03B21/00 , G03B21/005 , H05B41/2883 , H05B41/2928
摘要： To prevent biased consumption of electrodes in a discharge lamp and to prevent biased precipitation of the electrode material, a light source is provided. The light source device has a discharge lamp that emits light by discharge between a first electrode and a second electrode; and a driver that supplies alternating current to the first and the second electrodes so as to maintain the discharge, and changes duty ratio of the alternating current in accordance with predetermined pattern. The predetermined pattern includes a plurality of section periods for which the duty ratio maintains mutually different values for a predetermined period.
摘要翻译： 为了防止放电灯中电极的偏置消耗，并且为了防止电极材料的偏析，提供光源。 光源装置具有通过在第一电极和第二电极之间放电而发光的放电灯; 以及驱动器，其向第一和第二电极提供交流电流以保持放电，并且根据预定模式改变交流电的占空比。 预定模式包括多个段周期，占空比在预定周期内维持相互不同的值。
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公开(公告)号：US08558471B2
公开(公告)日：2013-10-15
申请号：US13328717
申请日：2011-12-16
IPC分类号： H05B37/02
CPC分类号： H01J61/86 , G03B21/00 , G03B21/005 , H05B41/2883 , H05B41/2928
摘要： To prevent biased consumption of electrodes in a discharge lamp and to prevent biased precipitation of the electrode material, a light source is provided. The light source device has a discharge lamp that emits light by discharge between a first electrode and a second electrode; and a driver that supplies alternating current to the first and the second electrodes so as to maintain the discharge, and changes duty ratio of the alternating current in accordance with predetermined pattern. The predetermined pattern includes a plurality of section periods for which the duty ratio maintains mutually different values for a predetermined period.
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公开(公告)号：US08203280B2
公开(公告)日：2012-06-19
申请号：US12314178
申请日：2008-12-05
IPC分类号： H05B41/36
CPC分类号： H01J61/86 , G03B21/00 , G03B21/005 , H05B41/2883 , H05B41/2928
摘要： To prevent biased consumption of electrodes in a discharge lamp and to prevent biased precipitation of the electrode material, a light source is provided. The light source device has a discharge lamp that emits light by discharge between a first electrode and a second electrode; and a driver that supplies alternating current to the first and the second electrodes so as to maintain the discharge, and changes duty ratio of the alternating current in accordance with predetermined pattern. The predetermined pattern includes a plurality of section periods for which the duty ratio maintains mutually different values for a predetermined period.
摘要翻译： 为了防止放电灯中电极的偏置消耗，并且为了防止电极材料的偏析，提供光源。 光源装置具有通过在第一电极和第二电极之间放电而发光的放电灯; 以及驱动器，其向第一和第二电极提供交流电流以保持放电，并且根据预定模式改变交流电的占空比。 预定模式包括多个段周期，占空比在预定周期内维持相互不同的值。
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