Driving device for discharge lamp, light source device, image display apparatus, and driving method for discharge lamp
    21.
    发明授权
    Driving device for discharge lamp, light source device, image display apparatus, and driving method for discharge lamp 有权
    放电灯驱动装置,光源装置,图像显示装置以及放电灯的驱动方法

    公开(公告)号:US08841854B2

    公开(公告)日:2014-09-23

    申请号:US12618363

    申请日:2009-11-13

    CPC classification number: H05B41/2928 Y02B20/208

    Abstract: A driving device for a discharge lamp includes: an alternating current supply section adapted to supply two electrodes of the discharge lamp with an alternating current; a frequency modulation section adapted to modulate a frequency of the alternating current, which the alternating current supply section supplies, in accordance with a predetermined condition of the discharge lamp within a range between a predetermined upper limit frequency and a predetermined lower limit frequency; and a modulation condition setting section adapted to set a modulation condition of the frequency by the frequency modulation section, wherein the modulation condition setting section sets the modulation condition so that the lower limit frequency when the discharge lamp is in a first state is higher than the lower limit frequency when the discharge lamp is in a second state in which a flicker is harder to occur than in the first state.

    Abstract translation: 一种用于放电灯的驱动装置,包括:交流电源部分,用于向放电灯的两个电极提供交流电; 频率调制部分,适于根据放电灯的预定条件在预定上限频率和预定下限频率之间的范围内调制交流电源部分提供的交流电频率; 以及调制条件设定部,其适于通过所述频率调制部设定所述频率的调制条件,其中,所述调制条件设定部设定所述调制条件,使得当所述放电灯处于第一状态时的下限频率高于 当放电灯处于比第一状态更难发生闪烁的第二状态时的下限频率。

    Projector
    22.
    发明授权
    Projector 有权
    投影机

    公开(公告)号:US08766551B2

    公开(公告)日:2014-07-01

    申请号:US13323095

    申请日:2011-12-12

    Abstract: 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.

    Abstract translation: 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。

    LIGHT SOURCE DEVICE, PROJECTOR, AND DRIVING METHOD OF DISCHARGE LAMP
    23.
    发明申请
    LIGHT SOURCE DEVICE, PROJECTOR, AND DRIVING METHOD OF DISCHARGE LAMP 审中-公开
    放电灯的光源装置,投影仪和驱动方法

    公开(公告)号:US20120249011A1

    公开(公告)日:2012-10-04

    申请号:US13469362

    申请日:2012-05-11

    Abstract: 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.

    Abstract translation: 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。

    Light source device, image display apparatus, and method of generating time-division color-separated light
    24.
    发明授权
    Light source device, image display apparatus, and method of generating time-division color-separated light 有权
    光源装置,图像显示装置和产生分时分色光的方法

    公开(公告)号:US08217582B2

    公开(公告)日:2012-07-10

    申请号:US12640356

    申请日:2009-12-17

    CPC classification number: H05B41/3928 H05B41/2883 H05B41/2928 Y02B20/202

    Abstract: 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.

    Abstract translation: 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。

    Stepwise repairing for electrode of discharge lamp
    25.
    发明授权
    Stepwise repairing for electrode of discharge lamp 有权
    逐步修复放电灯电极

    公开(公告)号:US08183796B2

    公开(公告)日:2012-05-22

    申请号:US12314901

    申请日:2008-12-18

    CPC classification number: H05B41/3928 H05B41/2928 Y02B20/202

    Abstract: A drive device that drives a discharge lamp including first and second electrodes includes a lighting circuit, a current control unit, a deformation detection unit, a current modulation unit, and a modulation enhancement unit. The lighting circuit supplies alternating current to the electrodes. The current control unit regulates the lighting circuit to control the alternating current. The deformation detection unit detects deformation of the surface shape of the electrodes. The current modulation unit modulates the controlled alternating current when the deformation is detected. The modulation enhancement unit increases a modulation ratio when the deformation is detected while modulating the alternating current.

    Abstract translation: 驱动包括第一和第二电极的放电灯的驱动装置包括点亮电路,电流控制单元,变形检测单元,电流调制单元和调制增强单元。 照明电路向电极提供交流电。 电流控制单元调节照明电路以控制交流电流。 变形检测单元检测电极的表面形状的变形。 当检测到变形时,当前的调制单元调制受控的交流电流。 当调制交流电流时,调制增强单元增加检测到变形时的调制比。

    Discharge lamp lighting device, control method thereof, and projector
    26.
    发明授权
    Discharge lamp lighting device, control method thereof, and projector 有权
    放电灯照明装置,其控制方法和投影仪

    公开(公告)号:US08138684B2

    公开(公告)日:2012-03-20

    申请号:US12401926

    申请日:2009-03-11

    CPC classification number: H05B41/2928 G03B21/005 H05B41/2886 Y02B20/202

    Abstract: 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.

    Abstract translation: 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。

    Driving method and driving device for discharge lamp, light source device, and image display device
    27.
    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 classification number: H05B41/2928

    Abstract: 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.

    Abstract translation: 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

    Light source and projector
    28.
    发明授权
    Light source and projector 有权
    光源和投影机

    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 classification number: H05B41/2928 Y02B20/208

    Abstract: 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.

    Abstract translation: 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。

    Light source device, projector, and driving method of discharge lamp
    29.
    发明申请
    Light source device, projector, and driving method of discharge lamp 有权
    放电灯的光源装置,投影机及驱动方法

    公开(公告)号:US20090153073A1

    公开(公告)日:2009-06-18

    申请号:US12314178

    申请日:2008-12-05

    Abstract: 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.

    Abstract translation: 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。

    Heat accumulating method and device
    30.
    发明授权
    Heat accumulating method and device 失效
    蓄热方法及装置

    公开(公告)号:US07085483B2

    公开(公告)日:2006-08-01

    申请号:US10828713

    申请日:2004-04-21

    CPC classification number: F28D20/028 F28D20/003 Y02E60/142 Y02E60/145

    Abstract: It is not possible to store heat of a domestic hot water supply level at a high density. If thermal storage temperature is T, variation in enthalpy in a chemical reaction is ΔH, variation in entropy is ΔS, and variation in free energy is ΔG, a thermal storage material satisfying a relationship of TΔS≧ΔG is used under a condition of ΔH>0 so as to promote a reaction for putting the thermal storage material in a thermal storage reaction portion in an energy storing state by having supplemental energy added by an electrode portion when putting the thermal storage material in the energy storing state by decomposing or separating it.

    Abstract translation: 不能以高密度存储家用热水供应水平的热量。 如果蓄热温度为T,则化学反应中焓的变化为DeltaH,熵变为ΔS,自由能变化为DeltaG,在DeltaH条件下使用满足TDeltaS> = DeltaG关系的储热材料 > 0,以促进通过在通过分解或分离储能材料进入能量储存状态时通过由电极部分添加的补充能量来促进将蓄热材料放入蓄热反应部分的能量储存状态的反应 。

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