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公开(公告)号：US20090231553A1
公开(公告)日：2009-09-17
申请号：US12401926
申请日：2009-03-11
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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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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3.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：US08102128B2
公开(公告)日：2012-01-24
申请号：US12404341
申请日：2009-03-16
IPC分类号： H05B41/36
CPC分类号： H05B41/2928
摘要： A driving method for 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 a first polarity switching period in the first period to be shorter than a second polarity switching period in the second period.
摘要翻译： 通过在两个电极之间交替地切换施加的电压的极性而在两个电极之间进行放电而点亮的放电灯的驱动方法包括：调制阳极占空比，该阳极占空比是电极之一 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; 以及将所述第一周期中的第一极性切换期间设定为短于所述第二期间的第二极性切换期间。
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4.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：US08089214B2
公开(公告)日：2012-01-03
申请号：US12389648
申请日：2009-02-20
CPC分类号： H05B41/2928
摘要： A driving method for 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, within a predetermined range; and changing the predetermined range to make a maximum value of the modulated anode duty ratio higher than a maximum value of an initial anode duty ratio of the discharge lamp when a predetermined condition is satisfied.
摘要翻译： 通过在两个电极之间交替地切换施加的电压的极性而在两个电极之间进行放电而点亮的放电灯的驱动方法包括：调制阳极占空比，该阳极占空比是电极之一 在极性切换的一个周期内作为阳极在预定范围内工作; 并且当满足预定条件时，改变预定范围以使调制的阳极占空比的最大值高于放电灯的初始阳极占空比的最大值。
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公开(公告)号：US20090153806A1
公开(公告)日：2009-06-18
申请号：US12314181
申请日：2008-12-05
CPC分类号： H01J61/86 , G03B21/00 , G03B21/005 , H05B41/2883 , H05B41/2928
摘要： A light source device is provided. The light source device has: a discharge lamp that emits light by discharge in an interelectrode space between a first electrode and a second electrode; a main mirror arranged at the first electrode side that reflects light flux generated by the discharge in the interelectrode space so as to emit the light flux to an area to be illuminated; a sub-mirror arranged at the second electrode side facing opposite the main mirror that reflects the light flux from the interelectrode space toward the interelectrode space; and a driver that supplies alternating current to the first and the second electrodes, and changes duty ratio of the alternating current supplied to the first and the second electrodes in accordance with a predetermined pattern. In the light source device, maximum value of time ratio of a first anode period in which the first electrode works as anode to one cycle of the alternating current is larger than maximum value of time ratio of a second anode period in which the second electrode works as anode to the one cycle of the alternating current.
摘要翻译： 提供光源装置。 光源装置具有：放电灯，其在第一电极和第二电极之间的电极间空间中通过放电发光; 主反射镜，其布置在第一电极侧，反射在电极间空间中由放电产生的光束，以将光通量发射到待照射的区域; 副镜子，其布置在第二电极侧，与主镜相对，反射来自电极间空间的光束朝向电极间空间; 以及驱动器，其向第一和第二电极提供交流电流，并且根据预定图案改变供应到第一和第二电极的交流电的占空比。 在光源装置中，第一电极作为阳极工作的一个阳极周期与交流电的一个周期的时间比的最大值大于第二电极工作的第二阳极周期的时间比的最大值 作为阳极到交流电的一个周期。
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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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公开(公告)号：US08167438B2
公开(公告)日：2012-05-01
申请号：US12314181
申请日：2008-12-05
CPC分类号： H01J61/86 , G03B21/00 , G03B21/005 , H05B41/2883 , H05B41/2928
摘要： A light source device is provided. The light source device has: a discharge lamp that emits light by discharge in an interelectrode space between a first electrode and a second electrode; a main mirror arranged at the first electrode side that reflects light flux generated by the discharge in the interelectrode space so as to emit the light flux to an area to be illuminated; a sub-mirror arranged at the second electrode side facing opposite the main mirror that reflects the light flux from the interelectrode space toward the interelectrode space; and a driver that supplies alternating current to the first and the second electrodes, and changes duty ratio of the alternating current supplied to the first and the second electrodes in accordance with a predetermined pattern. In the light source device, maximum value of time ratio of a first anode period in which the first electrode works as anode to one cycle of the alternating current is larger than maximum value of time ratio of a second anode period in which the second electrode works as anode to the one cycle of the alternating current.
摘要翻译： 提供光源装置。 光源装置具有：放电灯，其在第一电极和第二电极之间的电极间空间中通过放电发光; 主反射镜，其布置在第一电极侧，反射在电极间空间中由放电产生的光束，以将光通量发射到待照射的区域; 副镜子，其布置在第二电极侧，与主镜相对，反射来自电极间空间的光束朝向电极间空间; 以及驱动器，其向第一和第二电极提供交流电流，并且根据预定图案改变供应到第一和第二电极的交流电的占空比。 在光源装置中，第一电极作为阳极工作的一个阳极周期与交流电的一个周期的时间比的最大值大于第二电极工作的第二阳极周期的时间比的最大值 作为阳极到交流电的一个周期。
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公开(公告)号：US08044613B2
公开(公告)日：2011-10-25
申请号：US12401301
申请日：2009-03-10
IPC分类号： H05B41/00
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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10.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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