专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US06786620B1 Light source device and projector utilizing the same 有权
标题翻译：光源装置和投影机使用它
公开(公告)号：US06786620B1
公开(公告)日：2004-09-07
申请号：US09691032
申请日：2000-10-19
申请人： Takeshi Takezawa
发明人： Takeshi Takezawa
IPC分类号： F21V720
CPC分类号： F21V29/505 , F21V7/22 , F21V29/02 , F21V29/67 , G03B21/2026
摘要： A light source device of the present invention includes a light source lamp and a reflector that reflects light emitted from the light source lamp. The reflector is formed of a ceramic having a thermal conductivity of at least about 0.005 (cal/cm·sec·deg) at a temperature of 20° C. This arrangement of the light source device effectively lowers the ambient temperature of the light source lamp.
摘要翻译：本发明的光源装置包括光源灯和反射从光源灯发出的光的反射器。反射器由在20℃的温度下具有至少约0.005（cal / cm·sec）的导热率的陶瓷形成。光源装置的这种布置有效地降低了光源灯的环境温度。

42. 发明授权

US06722768B1 Projector 有权
标题翻译：投影机
公开(公告)号：US06722768B1
公开(公告)日：2004-04-20
申请号：US09679296
申请日：2000-10-06
申请人： Takeshi Takezawa
发明人： Takeshi Takezawa
IPC分类号： G03B2114
CPC分类号： H04N9/3105 , G02F1/13363
摘要： A technique capable of increasing contrast of a projected and displayed image of a projector. A projector includes an illuminating system that emits illumination light, a liquid crystal light valve for modulating light from the illuminating system according to image information, and a projection system for projecting image light formed on a light emission surface of the liquid crystal light valve. A liquid crystal light valve includes a liquid crystal panel, first and second polarizers disposed on the side of the light incidence surface and on the side of the light emission surface of the liquid crystal panel, and first and second compensating plates disposed between the liquid crystal panel and the first and second polarizers, respectively. By using such a liquid crystal light valve, incidence angle dependency of contrast of image light formed on the light emission surface of the liquid crystal light valve is reduced, whereby it is possible to increase contrast of an image projected and displayed by the projection system.
摘要翻译：能够增加投影仪的投影和显示图像的对比度的技术。投影机包括照射照明光的照明系统，用于根据图像信息调制来自照明系统的光的液晶光阀，以及用于投影形成在液晶光阀的发光面上的图像光的投影系统。液晶光阀包括液晶面板，设置在光入射面侧和液晶面板的发光面一侧的第一和第二偏振器，以及设置在液晶面板之间的第一和第二补偿板面板和第一和第二偏振器。通过使用这种液晶光阀，形成在液晶光阀的发光面上的图像光的对比度的入射角依赖性减小，从而可以增加由投影系统投影和显示的图像的对比度。

43. 发明授权

US08558471B2 Light source device, projector, and driving method of discharge lamp 有权
公开(公告)号：US08558471B2
公开(公告)日：2013-10-15
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： 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.

44. 发明授权

US08242425B2 Projector having first and second lamps with an illumination control device for turning on lamp having higher contrast with respect to a light modulation device and method of controlling lighting thereof 有权
标题翻译：投影仪具有第一和第二灯，其具有用于打开具有相对于光调制装置的较高对比度的灯的照明控制装置及其照明控制方法
公开(公告)号：US08242425B2
公开(公告)日：2012-08-14
申请号：US12700505
申请日：2010-02-04
申请人： Yuichiro Matsumoto , Osamu Fujimaki , Takeshi Takezawa
发明人： Yuichiro Matsumoto , Osamu Fujimaki , Takeshi Takezawa
IPC分类号： G01J1/32
CPC分类号： G03B21/2013 , G03B21/2053
摘要： A projector includes: first and second lamps; a combining member configured to combine the light from the first and second lamps; a light modulation device arranged on the downstream side of an optical path of the combining member configured to provide higher modulation contrast with respect to the light emitted from the first lamp and entering in a state of being inclined in a first direction with respect to a system optical axis than modulation contrast with respect to the light emitted from the second lamp and entering in a state of being inclined in a second direction; and an illumination control device configured to turn ON the first lamp having the higher contrast with respect to the light modulation device on a priority basis for illumination of the light modulation device in a one-lamp mode in which only one of the first and second lamps is turned ON.
摘要翻译：投影机包括：第一和第二灯; 组合构件，其被配置为组合来自所述第一和第二灯的光; 配置在所述组合部件的光路的下游侧的调光装置，被配置为相对于从所述第一灯发射的光提供更高的调制对比度，并进入相对于系统在第一方向上倾斜的状态光轴比相对于从第二灯发射的光的调制对比度并进入在第二方向上倾斜的状态; 以及照明控制装置，其被配置为优先关闭具有相对于所述光调制装置的较高对比度的第一灯，以便以单灯模式照明所述光调制装置，其中所述第一和第二灯只有一个被打开。

45. 发明授权

US08203280B2 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：US08203280B2
公开(公告)日：2012-06-19
申请号：US12314178
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： 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。

46. 发明授权

US08167438B2 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：US08167438B2
公开(公告)日：2012-05-01
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。

47. 发明授权

US08044613B2 Discharge lamp lighting device, control method thereof, and projector 有权
标题翻译：放电灯照明装置，其控制方法和投影仪
公开(公告)号：US08044613B2
公开(公告)日：2011-10-25
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： H05B41/00
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。

48. 发明授权

US07830098B2 Projector and light source device thereof 有权
标题翻译：投影仪及其光源装置
公开(公告)号：US07830098B2
公开(公告)日：2010-11-09
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： H05B37/02 , G03B21/20
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。

49. 发明授权

US07661830B2 Lamp device and projector equipped with the same 有权
标题翻译：灯具和投影机配备相同
公开(公告)号：US07661830B2
公开(公告)日：2010-02-16
申请号：US11898870
申请日：2007-09-17
申请人： Takeshi Takezawa , Shohei Fujisawa , Kazuhiro Tanaka , Hiroyuki Kobayashi , Toru Terashima
发明人： Takeshi Takezawa , Shohei Fujisawa , Kazuhiro Tanaka , Hiroyuki Kobayashi , Toru Terashima
IPC分类号： G03B21/28 , G03B21/20 , F21V7/00 , G02F1/13357
CPC分类号： H01J61/86 , F21V7/0025 , F21V17/04 , H01J61/025 , H04N9/315
摘要： Aspects of the invention can provide a lamp device that is capable of avoiding concentration of stresses in a sub-mirror fixing portion of an arc tube. The lamp device can include an arc tube provided with a bulb portion encapsulating inside a pair of electrodes, and a pair of sealing portions formed continuously from the bulb portion and sealing inside electrode axes having the electrodes at tip ends and conductor foils to bring the electrode axes into conduction, a main reflection mirror, to which the sealing portion is fixed, to reflect lights emitted from the arc tube toward an illuminated region, and a sub-mirror fixed to the sealing portion in such a manner that a reflection surface opposes the main reflection mirror with the bulb portion in between. The sub-mirror can be bonded with a bonding agent to a surface region of the sealing portion present in a direction moving away from the bulb portion in reference to a position corresponding to a termination of the electrode axis.
摘要翻译：本发明的方面可以提供能够避免在电弧管的副镜固定部分中的应力集中的灯装置。灯装置可以包括设置有封装在一对电极内的灯泡部分的电弧管和从灯泡部分连续形成的一对密封部分，并且密封内部电极轴线，电极轴线具有末端处的电极和导体箔以使电极轴导向，主反射镜，密封部分固定到主反射镜，以将从电弧管发射的光反射到照明区域;以及副反射镜，其以与反射面相反的方式固定到密封部分主反射镜，其中灯泡部分在其间。相对于与电极轴线的终止位置相对应的位置，副反射镜可以使用粘合剂粘合到沿着从灯泡部分移开的方向上的密封部分的表面区域。

50. 发明申请

US20090231553A1 DISCHARGE LAMP LIGHTING DEVICE, CONTROL METHOD THEREOF, AND PROJECTOR 有权
标题翻译：放电灯照明装置，其控制方法和投影仪
公开(公告)号：US20090231553A1
公开(公告)日：2009-09-17
申请号：US12401926
申请日：2009-03-11
申请人： Kazuhiro Tanaka , Kentaro Yamauchi , Tetsuo Terashima , Takeshi Takezawa
发明人： Kazuhiro Tanaka , Kentaro Yamauchi , Tetsuo Terashima , Takeshi Takezawa
IPC分类号： G03B21/00 , H05B41/16
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式