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1. 发明授权

US08102128B2 Driving method and driving device for discharge lamp, light source device, and image display device 有权
标题翻译：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
申请人： Tetsuo Terashima , Kentaro Yamauchi , Takeshi Takezawa , Kazuo Okawa
发明人： Tetsuo Terashima , Kentaro Yamauchi , Takeshi Takezawa , Kazuo Okawa
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。

2. 发明授权

US08089214B2 Driving method and driving device for discharge lamp, light source device, and image display device 有权
标题翻译：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
申请人： Tetsuo Terashima , Kentaro Yamauchi , Takeshi Takezawa , Kazuo Okawa
发明人： Tetsuo Terashima , Kentaro Yamauchi , Takeshi Takezawa , Kazuo Okawa
IPC分类号： H05B41/36 , H05B41/24
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。

3. 发明申请

US20100156313A1 Stepwise repairing for electrode of discharge lamp 有权
标题翻译：逐步修复放电灯电极
公开(公告)号：US20100156313A1
公开(公告)日：2010-06-24
申请号：US12314901
申请日：2008-12-18
申请人： Tetsuo Terashima , Kentaro Yamauchi , Shigeyasu Soma
发明人： Tetsuo Terashima , Kentaro Yamauchi , Shigeyasu Soma
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。

4. 发明授权

US07956315B2 Discharge lamp lighting device, method of controlling discharge lamp lighting device, and projector 有权
标题翻译：放电灯照明装置，放电灯照明装置的控制方法和投影仪
公开(公告)号：US07956315B2
公开(公告)日：2011-06-07
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： G01J1/44 , G01J1/32 , H05B41/16 , G03B21/20
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。

5. 发明申请

US20100084987A1 DISCHARGE LAMP DRIVING DEVICE AND METHOD, LIGHT SOURCE DEVICE, AND IMAGE DISPLAYING APPARATUS 有权
标题翻译：放电灯驱动装置和方法，光源装置和图像显示装置
公开(公告)号：US20100084987A1
公开(公告)日：2010-04-08
申请号：US12573258
申请日：2009-10-05
申请人： Kentaro Yamauchi , Tetsuo Terashima
发明人： Kentaro Yamauchi , Tetsuo Terashima
IPC分类号： H05B41/36
CPC分类号： H05B41/38 , H05B41/2928
摘要： In at least one embodiment of the disclosure, a discharge lamp driving device includes a discharge lamp lighting unit configured to supply power to a discharge lamp while alternately switching a polarity of a voltage applied across two electrodes of the discharge lamp. A controller performs a modulation control of the power in accordance with a power ratio characterized by the power supplied in a polarity switching period. The controller starts the modulation control at a predetermined time after the power supplied to the discharge lamp reaches a predetermined power value.
摘要翻译：在本公开的至少一个实施例中，放电灯驱动装置包括放电灯点亮单元，其配置为在放电灯的两个电极上施加的电压的极性交替切换时向放电灯供电。控制器根据在极性切换周期中提供的功率所表征的功率比来执行功率的调制控制。控制器在提供给放电灯的电源达到预定功率值之后的预定时间开始调制控制。

6. 发明申请

US20090153806A1 Light source device, projector, and driving method of discharge lamp 有权
标题翻译：放电灯的光源装置，投影机及驱动方法
公开(公告)号：US20090153806A1
公开(公告)日：2009-06-18
申请号：US12314181
申请日：2008-12-05
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： G03B21/28 , H05B41/14
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。

7. 发明授权

US08937436B2 Light source device, projector, and driving method of discharge lamp 有权
公开(公告)号：US08937436B2
公开(公告)日：2015-01-20
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： H05B37/02 , H01J61/86 , G03B21/00 , H05B41/288 , H05B41/292
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.

8. 发明授权

US08581506B2 Discharge lamp driving device and method, light source device, and image displaying apparatus 有权
标题翻译：放电灯驱动装置和方法，光源装置和图像显示装置
公开(公告)号：US08581506B2
公开(公告)日：2013-11-12
申请号：US12573258
申请日：2009-10-05
申请人： Kentaro Yamauchi , Tetsuo Terashima
发明人： Kentaro Yamauchi , Tetsuo Terashima
IPC分类号： H05B37/00 , H05B39/04 , H05B41/36 , H05B37/02 , H05B39/02 , H05B39/00 , H05B41/16 , H05B41/24 , H05B41/00 , H01J13/48 , H01J15/04 , H01J17/36
CPC分类号： H05B41/38 , H05B41/2928
摘要： In at least one embodiment of the disclosure, a discharge lamp driving device includes a discharge lamp lighting unit configured to supply power to a discharge lamp while alternately switching a polarity of a voltage applied across two electrodes of the discharge lamp. A controller performs a modulation control of the power in accordance with a power ratio characterized by the power supplied in a polarity switching period. The controller starts the modulation control at a predetermined time after the power supplied to the discharge lamp reaches a predetermined power value.
摘要翻译：在本公开的至少一个实施例中，放电灯驱动装置包括放电灯点亮单元，其配置为在放电灯的两个电极上施加的电压的极性交替切换时向放电灯供电。控制器根据在极性切换周期中提供的功率所表征的功率比来执行功率的调制控制。控制器在提供给放电灯的电源达到预定功率值之后的预定时间开始调制控制。

9. 发明申请

US20120086923A1 LIGHT SOURCE DEVICE, PROJECTOR, AND DRIVING METHOD OF DISCHARGE LAMP 有权
公开(公告)号：US20120086923A1
公开(公告)日：2012-04-12
申请号：US13328717
申请日：2011-12-16
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： G03B21/14 , 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.

10. 发明授权

US08129927B2 Driving device and driving method of electric discharge lamp, light source device, and image display apparatus 有权
标题翻译：放电灯，光源装置和图像显示装置的驱动装置和驱动方法
公开(公告)号：US08129927B2
公开(公告)日：2012-03-06
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： H05B41/36
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。

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