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公开(公告)号：US08143802B2
公开(公告)日：2012-03-27
申请号：US12393728
申请日：2009-02-26
申请人： Takeshi Takezawa , Kentaro Yamauchi
发明人： Takeshi Takezawa , Kentaro Yamauchi
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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2.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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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：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：US08044602B2
公开(公告)日：2011-10-25
申请号：US12372370
申请日：2009-02-17
申请人： Kentaro Yamauchi , Takeshi Takezawa
发明人： Kentaro Yamauchi , Takeshi Takezawa
IPC分类号： H05B37/02
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：US08008868B2
公开(公告)日：2011-08-30
申请号：US12404340
申请日：2009-03-16
申请人： Kentaro Yamauchi
发明人： Kentaro Yamauchi
CPC分类号： H05B41/2886 , H05B41/3927 , Y02B20/202
摘要： In at least one embodiment of the disclosure a discharge lamp lighting apparatus includes a controller configured to control an AC conversion circuit to perform AC conversion control for controlling the timings at which a polarity of the discharge lamp driving AC current is reversed. The controller is configured to control the power control circuit to perform current control for controlling a magnitude of the DC current. The controller changes the accumulated energy supplied to each electrode of a discharge lamp in one cycle of the discharge lamp driving AC current in accordance with a periodic pattern. The periodic pattern includes a plurality of segmented periods during each of which the accumulated energy is maintained at a same level for a plurality of cycles of the discharge lamp driving AC current, and a level of the accumulated energy in at least two of the segmented periods differ from each other.
摘要翻译： 在本公开的至少一个实施例中，放电灯点亮装置包括控制器，其被配置为控制AC转换电路以执行AC转换控制，以控制放电灯驱动AC电流的极性反转的定时。 控制器被配置为控制功率控制电路以执行用于控制DC电流的大小的电流控制。 控制器根据周期性图案在放电灯驱动AC电流的一个周期内改变提供给放电灯的每个电极的累积能量。 周期性图案包括多个分段周期，在每个分段周期期间，对于放电灯驱动AC电流的多个周期，累积能量保持在相同电平，并且在至少两个分段周期中的累积能量水平 彼此不同
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公开(公告)号：US20100156313A1
公开(公告)日：2010-06-24
申请号：US12314901
申请日：2008-12-18
IPC分类号： H05B41/36
CPC分类号： H05B41/3928 , H05B41/2928 , Y02B20/202
摘要： 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.
摘要翻译： 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。
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7.发明申请公开(公告)号：US20090237625A1
公开(公告)日：2009-09-24
申请号：US12405877
申请日：2009-03-17
申请人： Kentaro Yamauchi
发明人： Kentaro Yamauchi
CPC分类号： G03B21/2026 , G03B21/2053 , G03B33/12 , H05B41/2928 , Y02B20/208
摘要： In at least one embodiment of the disclosure a discharge lamp lighting device includes a controller configured to control an AC conversion circuit to perform AC conversion control for controlling the timings at which a polarity of the discharge lamp driving AC current is reversed. The controller is configured to control the power control circuit to perform current control for controlling a current value of the DC current. The controller changes the cumulative energy supplied to each electrode of a discharge lamp in one cycle of the AC current for the discharge lamp driving in accordance with a cyclical pattern. The cyclical pattern includes a plurality of segmented periods during each of which the cumulative energy is maintained at a same level for a plurality of cycles of the AC current for the discharge lamp driving, and a level of the cumulative energy in at least two of the segmented periods differ from each other.
摘要翻译： 在本公开的至少一个实施例中，放电灯点亮装置包括控制器，其被配置为控制AC转换电路以执行AC转换控制，以控制放电灯驱动AC电流的极性反转的定时。 控制器被配置为控制功率控制电路以执行用于控制DC电流的当前值的电流控制。 控制器根据循环模式改变在放电灯驱动的交流电流的一个周期内向放电灯的每个电极供应的累积能量。 循环模式包括多个分段周期，在每个分段周期期间，对于用于放电灯驱动的AC电流的多个周期，累积能量保持在相同的电平，并且至少两个中的累积能量的水平 分段期间彼此不同。
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8.发明授权Iron-base sintered part, manufacturing method of iron-base sintered part and actuator 有权铁基烧结部件，铁基烧结部件和致动器的制造方法公开(公告)号：US08491695B2
公开(公告)日：2013-07-23
申请号：US12093373
申请日：2006-11-15
申请人： Toshiyuki Saito , Takumi Mio , Koji Nishi , Hajime Fukami , Kentaro Yamauchi , Hiroyuki Yao , Masayuki Yamamoto , Hideki Yamazaki
发明人： Toshiyuki Saito , Takumi Mio , Koji Nishi , Hajime Fukami , Kentaro Yamauchi , Hiroyuki Yao , Masayuki Yamamoto , Hideki Yamazaki
CPC分类号： F04C2/3446 , B22F3/1007 , B22F3/24 , B22F5/08 , B22F2003/023 , B22F2003/026 , B22F2998/00 , B22F2998/10 , C22C33/0264 , C22C38/08 , C22C38/12 , C22C38/16 , F01C21/08 , F01C21/106 , F04C2230/22 , F05C2201/0409 , F05C2201/046 , F05C2201/0466 , Y10T74/18544 , B22F2201/30 , B22F3/02 , B22F3/1028
摘要： An iron-base sintered part having high density and totally enhanced strength, toughness and abrasion resistance, a manufacturing method of the iron-base sintered part, and an actuator are disclosed. The iron-base sintered part is formed by an iron-nickel-molybdenum-carbon-based sintered alloy, has density of 7.25 g/cm3 or more, and has a carburization quenched structure. A method for manufacturing the iron-base sintered part includes a molding process of charging a raw mixture powder of an iron-nickel-molybdenum-based metal powder and a carbon-based powder into a cavity of a molding die and compressing the raw powder in the cavity to form a consolidation body, a sintering process of sintering the consolidation body at a sintering temperature to form a sintered alloy, and a carburization quenching process of heating the sintered alloy in a carburization atmosphere and quenching the heated alloy.
摘要翻译： 公开了具有高密度和完全增强的强度，韧性和耐磨性的铁基烧结部件，铁基烧结部件的制造方法和致动器。 铁基烧结部由铁 - 镍 - 钼 - 碳系烧结合金形成，密度为7.25g / cm 3以上，具有渗碳淬火结构。 铁基烧结体的制造方法包括将铁 - 镍 - 钼 - 基金属粉末和碳 - 基粉末的混合物粉末加入到模具的空腔中并将原料粉末 形成固结体的空腔，在烧结温度下烧结固结体以形成烧结合金的烧结工艺，以及在渗碳气氛中加热烧结合金并淬火加热合金的渗碳淬火工艺。
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公开(公告)号：US08350489B2
公开(公告)日：2013-01-08
申请号：US13234570
申请日：2011-09-16
申请人： Kentaro Yamauchi , Takeshi Takezawa
发明人： Kentaro Yamauchi , Takeshi Takezawa
IPC分类号： H05B37/02
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：US08344645B2
公开(公告)日：2013-01-01
申请号：US13396916
申请日：2012-02-15
申请人： Takeshi Takezawa , Kentaro Yamauchi
发明人： Takeshi Takezawa , Kentaro Yamauchi
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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