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1. 发明授权

US08350489B2 Method of driving discharge lamp, driving device, and projector 有权
标题翻译：驱动放电灯，驱动装置和投影仪的方法
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。

2. 发明授权

US08344645B2 Method of driving discharge lamp, driving device, and projector 有权
标题翻译：驱动放电灯，驱动装置和投影仪的方法
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
IPC分类号： H05B41/16 , H05B41/36
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。

3. 发明授权

US08317339B2 Discharge lamp lighting device, projector, and control method of discharge lamp lighting device 有权
标题翻译：放电灯照明装置，投影机及放电灯照明装置的控制方法
公开(公告)号：US08317339B2
公开(公告)日：2012-11-27
申请号：US12646997
申请日：2009-12-24
申请人： Takeshi Takezawa
发明人： Takeshi Takezawa
IPC分类号： G03B21/20 , H01J29/46 , G01J1/32
CPC分类号： H05B41/2928 , G03B21/2026 , H05B41/2887
摘要： A discharge lamp lighting device includes: a discharge lamp driving unit that supplies an AC driving current to a discharge lamp to drive the discharge lamp; a current detecting unit that detects the AC driving current supplied to the discharge lamp; and a control unit that controls the discharge lamp driving unit, wherein the control unit controls the discharge lamp driving unit after a predetermined time from the start of lighting driving operation of the discharge lamp on the basis of the behavior of the AC driving current detected by the current detecting unit at the predetermined time from the start of lighting driving operation of the discharge lamp.
摘要翻译：放电灯点亮装置包括：放电灯驱动单元，其向放电灯提供AC驱动电流以驱动放电灯; 电流检测单元，其检测供给到放电灯的交流驱动电流; 以及控制单元，其控制放电灯驱动单元，其中，所述控制单元基于从所述放电灯的点亮驱动操作开始的预定时间，基于由所述放电灯驱动单元检测到的AC驱动电流的行为，控制所述放电灯驱动单元电流检测单元在从放电灯的点亮驱动操作开始的预定时间开始。

4. 再颁专利

USRE43777E1 Light source device and projector 有权
标题翻译：光源设备和投影机
公开(公告)号：USRE43777E1
公开(公告)日：2012-10-30
申请号：US11826189
申请日：2007-07-12
申请人： Motoyuki Fujimori , Takeshi Takezawa , Hiroyuki Meguro , Masakazu Kitamura
发明人： Motoyuki Fujimori , Takeshi Takezawa , Hiroyuki Meguro , Masakazu Kitamura
IPC分类号： G03B21/18 , F21V29/00 , F21V7/00 , F21V7/20 , F21V9/00 , G03B21/26
CPC分类号： H04N5/74 , H04N9/315
摘要： A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape corresponding to the profile of a reflecting portion (122) of the reflector (12). A cooling channel for passing a cooling air is formed between the plate body (19) and the reflector (12). The width of the cooling channel in a direction along an optical axis of the light source lamp (11) is minimized at a part near a neck portion (121) of the reflecting portion (122) and enlarged toward the peripheral edge of the reflecting portion (122) of the reflector (12).
摘要翻译：光源灯单元（10）包括光源灯（11），椭圆反射器（12）和板体（19）。板体（19）设置在反射器（12）的后面，其间保持有间隙，其具有与反射器（12）的反射部分（122）的轮廓相对应的形状。用于通过冷却空气的冷却通道形成在板体（19）和反射器（12）之间。沿着光源灯（11）的光轴方向的冷却通道的宽度在靠近反射部（122）的颈部（121）的部分处被最小化，并朝向反射部的周边边缘扩大（122）。

5. 发明申请

US20110242505A1 LIGHT SOURCE DEVICE AND PROJECTOR 审中-公开
标题翻译：光源设备和投影机
公开(公告)号：US20110242505A1
公开(公告)日：2011-10-06
申请号：US13125446
申请日：2009-09-17
申请人： Yuji Takado , Takeshi Takezawa
发明人： Yuji Takado , Takeshi Takezawa
IPC分类号： G03B21/28 , H01K1/30
CPC分类号： F21V7/0025 , G03B21/2026 , G03B21/208 , H01J61/025 , H01J61/86
摘要： A light source device includes an arc tube having a tube spherical portion containing a light emission portion and a pair of sealing portions, a reflector and a sub mirror having a reflecting portion and a fixing portion. The reflector is so shaped that at least an end on one side is removed in a cross-sectional view cut along a predetermined plane containing a revolution center axis. The fixing portion of the sub mirror is so constructed as to cover at least the sealing portion as one of the pair of the sealing portions of the arc tube through an area larger than the half of the outer circumference of the sealing portion.
摘要翻译：光源装置包括具有包含发光部分和一对密封部分的管球形部分的反射镜和具有反射部分和固定部分的副反射镜的发光管。反射器的形状使得沿着包含旋转中心轴的预定平面的截面图中除去一侧的至少一端。副反射镜的固定部分构造成至少将密封部分覆盖电弧管的一对密封部分中的一个，该密封部分的面积大于密封部分的外圆周的一半。

6. 发明授权

US07712921B2 Light source device, method of manufacturing light source, and projector 有权
标题翻译：光源装置，光源制造方法及投影仪
公开(公告)号：US07712921B2
公开(公告)日：2010-05-11
申请号：US12000418
申请日：2007-12-12
申请人： Hiroyuki Kobayashi , Shohei Fujisawa , Yuji Takado , Takeshi Takezawa
发明人： Hiroyuki Kobayashi , Shohei Fujisawa , Yuji Takado , Takeshi Takezawa
IPC分类号： F21V7/04
CPC分类号： F21V7/0025 , F21V7/0016 , F21V7/22 , F21V17/04 , G03B21/2026 , H01J61/35 , H01J61/86
摘要： A light source unit comprising an arc tube 11 having a light emitting section 111 sealed sections 1121, 1122, an oval reflector 12, and a secondary reflecting mirror 13 for covering the front side of the arc tube 11 and reflecting a luminous flux radiated from the arc tube 11 toward the oval reflector 12, the center of discharging emission from the arc tube 11 is disposed at a first focal position L1 of the oval reflector 12, and the secondary reflecting mirror 13 is configured as a separate member from the arc tube 11, so that the outer peripheral portion of the secondary reflecting mirror 13 is accommodated within a circular cone shown by boundaries L3, L4 connecting a second focal position L2 of the oval reflector 12 and the distal end of the sealed section 1122 of the arc tube 11 when being mounted to the front sealed section 1122 of the arc tube 11.
摘要翻译：一种光源单元，包括具有发光部分111的密封部分1121,1122，椭圆形反射镜12和用于覆盖电弧管11的前侧的二次反射镜13的发光管11，并且反射从电弧管11朝向椭圆形反射器12，来自电弧管11的放电发射中心设置在椭圆形反射器12的第一焦点位置L1处，并且次级反射镜13被构造为与电弧管11分离的部件使得二次反射镜13的外周部分容纳在连接椭圆形反射器12的第二焦点位置L2和电弧管11的密封部分1122的远端的边界L3，L4所示的圆锥体内当安装到电弧管11的前密封部分1122时。

7. 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。

8. 发明授权

US07484853B2 Light source device and projector 失效
标题翻译：光源设备和投影机
公开(公告)号：US07484853B2
公开(公告)日：2009-02-03
申请号：US11357056
申请日：2006-02-21
申请人： Kazuhiro Nishida , Takeshi Takezawa
发明人： Kazuhiro Nishida , Takeshi Takezawa
IPC分类号： G03B21/28 , F21V7/00
CPC分类号： H04N9/315 , F21V7/0025 , G03B21/2026 , G03B21/2066
摘要： A light source device includes: a light emitting tube having a light emitting portion that generates light by an electric discharge between a pair of electrodes and first and second sealed portions provided on either side of the light emitting portion; a main reflecting mirror provided along the first sealed portion of the light emitting tube and having a main reflecting portion that reflects light radiated from the light emitting tube so as to converge at a predetermined position; and a sub-reflecting mirror provided along the second sealed portion of the light emitting tube and having a sub-reflecting portion and a base portion, the sub-reflecting portion sending light radiated from the light emitting tube toward a side opposite to the main reflecting mirror back to the light emitting portion of the light emitting tube, and the base portion being provided at a side of the second sealed portion of the sub-reflecting portion and formed in a stepped manner with respect to the sub-reflecting portion.
摘要翻译：光源装置包括：发光管，其具有通过一对电极之间的放电产生光的发光部和设置在发光部的任一侧的第一和第二密封部; 主反射镜，沿着发光管的第一密封部分设置并具有反射从发光管辐射的光以聚集在预定位置的主反射部; 以及沿着发光管的第二密封部分设置的具有副反射部分和基部的副反射镜，副反射部分将从发光管辐射的光朝向与主反射面相反的一侧反射回发光管的发光部，基部设置在副反射部的第二密封部的一侧，相对于副反射部以阶梯状的方式形成。

9. 发明授权

US07400100B2 Discharge-lamp lighting apparatus and projector 有权
标题翻译：放电灯照明装置和放映机
公开(公告)号：US07400100B2
公开(公告)日：2008-07-15
申请号：US11713034
申请日：2007-03-02
申请人： Takeshi Takezawa
发明人： Takeshi Takezawa
IPC分类号： G05F1/00
CPC分类号： H05B41/2886 , H01J61/025 , H01J61/86 , Y10S315/05 , Y10S315/07
摘要： A discharge-lamp lighting apparatus includes a control circuit that determines electric power supplied to a high-pressure discharge lamp after the high-pressure discharge lamp is started by an igniter. The electric power is determined in accordance with a voltage corresponding to a lamp voltage detected by a voltage detection circuit and a drive current detected by a current detection circuit. When the determined electric power is less than predetermined electric power, the control circuit causes a down chopper to control the drive current such that an amount of increase in the electric power per unit time becomes equal to or less than a predetermined value.
摘要翻译：放电灯点灯装置包括控制电路，其确定在通过点火器启动高压放电灯之后向高压放电灯供电的电力。根据与由电压检测电路检测的灯电压对应的电压和由电流检测电路检测的驱动电流来确定电力。当确定的电力小于预定电力时，控制电路使下降斩波器控制驱动电流，使得每单位时间内的电力的增加量等于或小于预定值。

10. 发明授权

US07397189B2 Lamp device and projector therewith 有权
标题翻译：灯具和投影机
公开(公告)号：US07397189B2
公开(公告)日：2008-07-08
申请号：US11092583
申请日：2005-03-29
申请人： Hiroyuki Kobayashi , Shohei Fujisawa , Toru Terashima , Kazuhiro Tanaka , Takeshi Takezawa
发明人： Hiroyuki Kobayashi , Shohei Fujisawa , Toru Terashima , Kazuhiro Tanaka , Takeshi Takezawa
IPC分类号： H01J17/30 , H01J17/46 , F21V7/00
CPC分类号： H01J61/025 , G03B21/2026 , H01J61/54
摘要： In a lamp device provided with an arc tube, a principal reflection mirror, and a sub-mirror; a decrease in illumination light, caused by a trigger line disposed to improve the turn-on characteristics of the arc tube, being suppressed. The lamp device include an arc tube having a bulb portion that incorporates electrodes and sealing portions; a principal reflection mirror; a sub-mirror; leads connected to an electrode at an end portion of each of the sealing portions; and a trigger line. The trigger line has a ring-like portion wound around the sealing portion. The trigger line extends from the ring-like portion and has a wiring path that passes a neighborhood of the bulb portion without coming into contact with the bulb portion, further extends along the sealing portion and is connected to the lead. The wiring path is in the same plane that extends through an optical axis.
摘要翻译：在设置有电弧管，主反射镜和副镜的灯装置中，抑制由设置为提高电弧管的接通特性的触发线引起的照明光的减少。灯装置包括具有灯泡部分的电弧管，其包含电极和密封部分; 主反射镜; 副镜子在每个密封部分的端部处连接到电极的引线; 和触发线。触发线具有围绕密封部分缠绕的环状部分。触发线从环状部分延伸，并且具有穿过灯泡部分附近而不与灯泡部分接触的布线路径，还沿密封部分延伸并连接到引线。布线路径在延伸穿过光轴的同一平面内。

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