公开(公告)号：US20120249011A1

公开(公告)日：2012-10-04

申请号：US13469362

申请日：2012-05-11

申请人： Kentaro YAMAUCHI ,  Tetsuo Terashima ,  Takeshi Takezawa ,  Kazuo Okawa ,  Shigeyasu Soma

发明人： Kentaro YAMAUCHI ,  Tetsuo Terashima ,  Takeshi Takezawa ,  Kazuo Okawa ,  Shigeyasu Soma

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。

公开(公告)号：US20090085495A1

公开(公告)日：2009-04-02

申请号：US12237746

申请日：2008-09-25

申请人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA ,  Takeshi TAKEZAWA ,  Kazuo OKAWA ,  Keishi KIMURA

发明人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA ,  Takeshi TAKEZAWA ,  Kazuo OKAWA ,  Keishi KIMURA

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。

公开(公告)号：US20090108770A1

公开(公告)日：2009-04-30

申请号：US12258958

申请日：2008-10-27

申请人： Tetsuo TERASHIMA ,  Kentaro YAMAUCHI ,  Takeshi TAKEZAWA ,  Kazuo OKAWA ,  Keishi KIMURA

发明人： Tetsuo TERASHIMA ,  Kentaro YAMAUCHI ,  Takeshi TAKEZAWA ,  Kazuo OKAWA ,  Keishi KIMURA

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。

公开(公告)号：US20090237009A1

公开(公告)日：2009-09-24

申请号：US12401301

申请日：2009-03-10

申请人： Kazuo OKAWA ,  Kentaro YAMAUCHI ,  Tetsuo TERASHIMA ,  Takeshi TAKEZAWA

发明人： Kazuo OKAWA ,  Kentaro YAMAUCHI ,  Tetsuo TERASHIMA ,  Takeshi TAKEZAWA

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。

公开(公告)号：US20080297739A1

公开(公告)日：2008-12-04

申请号：US12128910

申请日：2008-05-29

申请人： Kentaro YAMAUCHI ,  Shigeyasu SOMA

发明人： Kentaro YAMAUCHI ,  Shigeyasu SOMA

IPC分类号： G03B21/14 ,  H05B41/36

CPC分类号： H05B41/2928 ,  G03B21/2026 ,  G03B21/206 ,  Y02B20/208

摘要： A projector includes an discharge lamp which has a first electrode and a second electrode and emits light by generating discharge between the first and second electrodes, and a driving system which supplies power by alternating polarities of the first electrode and the second electrode. The driving system is operable in a restoration mode. The driving system melts surface layers of a tip and a surrounding area of the tip extending from a main body of one of the first and second electrodes, and expands a new tip on a tip area of the main body of the one electrode in the restoration mode.

摘要翻译： 投影仪包括具有第一电极和第二电极并且通过在第一和第二电极之间产生放电而发光的放电灯，以及通过第一电极和第二电极的交替极性提供电力的驱动系统。 驱动系统在恢复模式下可操作。 所述驱动系统熔化从所述第一和第二电极之一的主体延伸的尖端的尖端和周围区域的表面层，并且在所述恢复部中的所述一个电极的主体的尖端区域上扩展新的尖端 模式。

公开(公告)号：US20100103388A1

公开(公告)日：2010-04-29

申请号：US12504137

申请日：2009-07-16

申请人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

发明人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

IPC分类号： H05B41/26 ,  G03B21/00

CPC分类号： H05B41/2928 ,  G03B21/005 ,  H05B41/2885

摘要： A discharge lamp lighting device includes: a power control circuit adapted to generate discharge lamp driving power; an alternating current conversion circuit adapted to execute polarity reversal on a direct current output from the power control circuit, thereby generating an alternating current; and a control section adapted to perform alternating current conversion control of controlling the polarity reversal timing of the alternating current, wherein the control section executes a steady drive process of executing the alternating current conversion control at a given frequency, a first low frequency drive process of executing the alternating current conversion control at a first low frequency driving frequency lower than the given frequency, and starting from a first polarity and ending with the first polarity, and a second low frequency drive process of executing the alternating current conversion control at a second low frequency driving frequency lower than the given frequency, and starting from a second polarity and ending with the second polarity.

摘要翻译： 放电灯点亮装置包括：功率控制电路，适于产生放电灯驱动电力; 交流电转换电路，用于对从功率控制电路输出的直流电进行极性反转，从而产生交流电; 以及控制部，其适于执行控制所述交流电的极性反转定时的交流转换控制，其中，所述控制部执行以给定频率执行所述交流电转换控制的稳定驱动处理，所述第一低频驱动处理 在低于给定频率的第一低频驱动频率下执行交流转换控制，并从第一极性开始并以第一极性结束;以及第二低频驱动处理，以第二低电平执行交流电转换控制 频率驱动频率低于给定频率，并从第二极性开始并以第二极性结束。

公开(公告)号：US20100033105A1

公开(公告)日：2010-02-11

申请号：US12534500

申请日：2009-08-03

申请人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

发明人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

IPC分类号： H05B41/26

CPC分类号： H05B41/2928

摘要： A driving device of an electric discharge lamp includes: a discharge lamp lighting unit which supplies power to the electric discharge lamp while alternately switching polarity of voltage applied between two electrodes of the electric discharge lamp to lighting the electric discharge lamp; and an anode duty ratio modulating unit which sets at least a first retention period and a second retention period having an anode duty ratio different from that of the first retention period and provided after the first retention period to modulate the anode duty ratios, assuming that each of the retention periods is a period for retaining an anode duty ratio as ratio of an anode period in which one of the electrodes operates as anode at a constant value in one cycle of the polarity switching, wherein the anode duty ratio modulating unit has a first modulation mode for operating the electric discharge lamp in steady condition and a second modulation mode for providing larger change of the anode duty ratio between the first retention period and the second retention period than change of the first modulation mode.

摘要翻译： 放电灯的驱动装置包括：放电灯点亮单元，其在交替地切换施加在所述放电灯的两个电极之间的电压的极性以点亮所述放电灯的同时向所述放电灯供电; 以及阳极占空比调制单元，其至少设置具有与第一保留期间不同的第一保留期间和第二保留期间，并且在第一保留期限之后设置以调节阳极占空比，以假设每个 保持期间是将极性切换中的一个循环中的一个电极作为阳极作为阳极的阳极周期的比例保持为阳极占空比的期间，其中，阳极占空比调制单元具有第一 用于在稳定状态下操作放电灯的调制模式和第二调制模式，用于与第一调制模式的改变相比，在第一保持期间和第二保持期间之间提供更大的阳极占空比的变化。

公开(公告)号：US20100033103A1

公开(公告)日：2010-02-11

申请号：US12534897

申请日：2009-08-04

申请人： Keishi KIMURA ,  Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

发明人： Keishi KIMURA ,  Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

IPC分类号： H05B41/36

CPC分类号： H05B41/38 ,  H05B41/2928 ,  Y02B20/208

摘要： A driving device for a discharge lamp includes: a discharge-lamp lighting unit that supplies an alternating current to the discharge lamp to thereby supply electric power to between two electrodes of the discharge lamp; an inter-electrode-voltage detecting unit that detects an inter-electrode voltage applied when predetermined electric power is supplied to between the two electrodes; and a power-supply-condition switching unit that switches, on the basis of the detected inter-electrode voltage, the power supply by the discharge-lamp lighting unit with a predetermined hysteresis given to the switching of the power supply conditions, wherein the power supply conditions are switched by changing at least one of a frequency of the alternating current, a duty ratio of the alternating current, a modulation pattern of the frequency, and a modulation pattern of the duty ratio.

摘要翻译： 放电灯的驱动装置包括：放电灯点亮单元，其向放电灯提供交流电流，从而向放电灯的两个电极之间提供电力; 电极间电压检测单元，其检测在所述两个电极之间提供预定电力时施加的电极间电压; 以及电源条件切换单元，其基于检测到的电极间电压，以给定的供电条件切换的预定滞后来切换放电灯点亮单元的电力供给，其中，功率 通过改变交流电的频率，交流电的占空比，频率的调制模式和占空比的调制模式中的至少一个来切换供给条件。

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

IPC分类号： G03B21/20 ,  H05B41/24 ,  F21V7/00

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。

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

IPC分类号： G03B21/28 ,  H05B41/16

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。