-
公开(公告)号：US20100045185A1
公开(公告)日：2010-02-25
申请号：US12544601
申请日：2009-08-20
CPC分类号： H01J61/86 , H01J61/0732
摘要： A cathode for a discharge lamp contains emitter material, wherein a carbide layer is formed on an outer surface of the cathode, the carbide layer is formed on an area extending from a tip portion of the cathode, and two or more grooves extending toward the tip portion of the cathode are formed on the area where the carbide layer is formed.
摘要翻译： 用于放电灯的阴极包含发射体材料，其中在阴极的外表面上形成碳化物层，碳化物层形成在从阴极的顶部延伸的区域上，并且朝向尖端延伸的两个或更多个沟槽 阴极的部分形成在形成碳化物层的区域上。
-
公开(公告)号：US08283863B2
公开(公告)日：2012-10-09
申请号：US12801997
申请日：2010-07-07
CPC分类号： H01J61/0735 , H01J61/86
摘要： A xenon short arc lamp for a digital projector, includes an anode, a cathode having a cathode main body that is made of tungsten containing electron emissive material, and an arc tube made of silica glass, wherein a supply source of carbon is formed on a metal portion in the arc tube except a tip area of the cathode, and the carbon is supplied to the tip of the cathode through a gaseous phase during lamp lighting, so that a surface layer of the cathode is melt.
摘要翻译： 一种用于数字投影仪的氙弧光灯，包括阳极，具有由包含电子发射材料的钨制成的阴极主体的阴极和由石英玻璃制成的电弧管，其中碳的供应源形成在 除了阴极的尖端区域之外的电弧管中的金属部分，并且在灯点亮期间通过气相将碳供应到阴极的尖端，使得阴极的表面层熔化。
-
公开(公告)号：US20110006675A1
公开(公告)日：2011-01-13
申请号：US12801997
申请日：2010-07-07
CPC分类号： H01J61/0735 , H01J61/86
摘要： A xenon short arc lamp for a digital projector, includes an anode, a cathode having a cathode main body that is made of tungsten containing electron emissive material, and an arc tube made of silica glass, wherein a supply source of carbon is formed on a metal portion in the arc tube except a tip area of the cathode, and the carbon is supplied to the tip of the cathode through a gaseous phase during lamp lighting, so that a surface layer of the cathode is melt.
摘要翻译： 一种用于数字投影仪的氙弧光灯，包括阳极，具有由包含电子发射材料的钨制成的阴极主体的阴极和由石英玻璃制成的电弧管，其中碳的供应源形成在 除了阴极的尖端区域之外的电弧管中的金属部分，并且在灯点亮期间通过气相将碳供应到阴极的尖端，使得阴极的表面层熔化。
-
公开(公告)号：US08525410B2
公开(公告)日：2013-09-03
申请号：US13173074
申请日：2011-06-30
IPC分类号： H01J61/06
CPC分类号： H01J61/0732 , H01J61/0737 , H01J61/86
摘要： A short arc type discharge lamp wherein a cathode and an anode are arranged opposite to each other in an interior of a light emitting tube and said cathode comprises a main part made from tungsten and a tip end part made from thoriated tungsten, wherein thorium oxide particles having been peripherally coated with thorium are contained in the tip end part of said cathode.
摘要翻译： 一种短弧型放电灯，其中阴极和阳极在发光管的内部彼此相对布置，并且所述阴极包括由钨制成的主要部分和由钍钨制成的尖端部分，其中氧化钍粒子 被外周涂覆有钍的物质包含在所述阴极的末端部分中。
-
公开(公告)号：US08497632B2
公开(公告)日：2013-07-30
申请号：US13348301
申请日：2012-01-11
IPC分类号： H01J61/04
CPC分类号： H01J61/0732 , H01J61/0735 , H01J61/86
摘要： A short arc type discharge lamp includes a cathode and an anode arranged inside an arc tube to face each other. The cathode comprises a main body portion made of tungsten and an emitter portion made of thoriated tungsten that is joined at the tip of the main body portion, where a metal oxide other than thorium (Th) is contained in the main body portion of the cathode, and a tungsten carbide layer is formed on the metal oxide.
摘要翻译： 短弧型放电灯包括阴极和布置在电弧管内的阳极以彼此面对。 阴极包括由钨制成的主体部分和由钍钨制成的发射极部分，其连接在主体部分的尖端处，其中除了钍（Th）之外的金属氧化物被包含在阴极的主体部分中 并且在金属氧化物上形成碳化钨层。
-
6.发明授权Discharge lamp with an improved cathode of the type having a thoriated tungsten part 有权具有改进的具有钍钨部分的类型的阴极的放电灯公开(公告)号：US08390198B2
公开(公告)日：2013-03-05
申请号：US13015136
申请日：2011-01-27
CPC分类号： H01J61/0732 , H01J61/0735 , H01J61/86
摘要： A discharge lamp with excellent arc stability and excellent durability in which the use level of thoriated tungsten is restrained has an anode and a cathode in the interior of a discharge vessel, wherein said cathode is made up from a thoriated tungsten part with a tungsten filling ratio of at least 90 vol.-% and a main body part connected to said thoriated tungsten part and consisting of pure tungsten, wherein a ratio ST/S of a side surface area ST of said thoriated tungsten part and a side surface area S of said cathode is in a range of from 0.005 to 0.15, with the proviso that, in case the cathode has a length in the direction of the cathode axis which exceeds twice the maximum diameter of the cathode, a side surface area S is used for calculating the ratio ST/S which corresponds to the side surface area where the distance along the cathode axis from a tip end adjacent to the anode is twice the maximum diameter of the cathode.
摘要翻译： 具有优异的电弧稳定性和优异耐久性的放电灯，其中钍钨的使用水平被限制在放电容器的内部具有阳极和阴极，其中所述阴极由具有钨填充比的钍钨部分 至少90体积％，以及连接到所述钍钨部分并由纯钨组成的主体部分，其中所述钍钨部分的侧表面积ST和所述钍钨部分的侧表面积S的比率ST / S 阴极在0.005至0.15的范围内，条件是在阴极的长度方向上阴极轴线的长度超过阴极最大直径的两倍的情况下，侧面积S用于计算 与沿着阴极轴线距离与阳极相邻的尖端的距离为两倍于阴极最大直径的侧表面积的比率ST / S。
-
公开(公告)号：US08400060B2
公开(公告)日：2013-03-19
申请号：US13245028
申请日：2011-09-26
IPC分类号： H01J17/04
CPC分类号： H01J61/0735 , H01J61/0732 , H01J61/86
摘要： A short arc type discharge lamp wherein a cathode and an anode are arranged opposite to each other in an interior of a light emitting tube and said cathode consists of a main body part with tungsten as the main constituent and an emitter part comprised of thoriated tungsten, wherein an oxygen content of the main body part of said cathode is lower than that of the emitter part, and band-shaped tungsten carbide is formed at the tip end face of the emitter part of said cathode.
摘要翻译： 一种短弧型放电灯，其中阴极和阳极在发光管的内部彼此相对布置，并且所述阴极由以钨为主要成分的主体部分和由钍钨组成的发射极部分组成， 其中所述阴极的主体部分的氧含量低于发射极部分的氧含量，并且在所述阴极的发射极部分的末端面上形成带状碳化钨。
-
公开(公告)号：US20120181925A1
公开(公告)日：2012-07-19
申请号：US13348301
申请日：2012-01-11
IPC分类号： H01J61/04
CPC分类号： H01J61/0732 , H01J61/0735 , H01J61/86
摘要： A short arc type discharge lamp includes a cathode and an anode arranged inside an arc tube to face each other. The cathode comprises a main body portion made of tungsten and an emitter portion made of thoriated tungsten that is joined at the tip of the main body portion, where a metal oxide other than thorium (Th) is contained in the main body portion of the cathode, and a tungsten carbide layer is formed on the metal oxide.
摘要翻译： 短弧型放电灯包括阴极和布置在电弧管内的阳极以彼此面对。 阴极包括由钨制成的主体部分和由钍钨制成的发射极部分，其连接在主体部分的尖端处，其中除了钍（Th）之外的金属氧化物被包含在阴极的主体部分中 并且在金属氧化物上形成碳化钨层。
-
公开(公告)号：US07170237B2
公开(公告)日：2007-01-30
申请号：US11189888
申请日：2005-07-27
CPC分类号： H05B41/2888 , H05B41/2928 , Y02B20/202 , Y02B20/208
摘要： To positionally stabilize the arc spot in a super-high pressure discharge lamp which is filled with at least 0.20 mg/mm3 of mercury and to prevent the formation of so-called flicker, in an operation device having a high pressure discharge lamp and a feed device, the feed device of the high pressure discharge lamp supplies a frequency in the range from 60 Hz to 1000 Hz as the stationary operating frequency and a low frequency, in a frequency range of from 5 Hz to 200 Hz is inserted which has an inserted length of from one half period to five periods, and an inserting period of from 0.01 seconds to 120 seconds, into the alternating current of the stationary operating frequency. Furthermore, the parameters of the low frequency are changed according to changes of the operating voltage of the discharge lamp.
摘要翻译： 为了在填充有至少0.20mg / mm 3汞的超高压放电灯中定位稳定电弧点，并防止形成所谓的闪烁，在具有 高压放电灯和馈电装置，高压放电灯的馈电装置在从5Hz到1000Hz的频率范围内将频率范围从5Hz到1000Hz作为固定工作频率和低频率，频率范围为5Hz至 插入200Hz，其具有从固定工作频率的交流电中的一半周期到五个周期的插入长度以及从0.01秒到120秒的插入周期。 此外，低频的参数根据放电灯的工作电压的变化而变化。
-
公开(公告)号：US06815910B2
公开(公告)日：2004-11-09
申请号：US10602917
申请日：2003-06-25
IPC分类号： H05B3702
CPC分类号： H05B41/2928
摘要： To prevent lamp extinction during dead time of an inverter circuit of a full bridge system, to reduce delays of the rising time and the falling time of rectangular waves which have been output by the inverter circuit and to prevent formation of a phenomenon of momentary darkening of the radiant light, the discharge lamp is operated with an alternating current with rectangular waves which is produced by an inverter circuit of a full bridge system. When the inverter circuit of the full bridge system is driven a dead time is taken in which all switching devices are turned off. In the rear stage of the inverter circuit of the full bridge system, there is an inductance. The value of the inductance is fixed such that LL≧VL/IL·Td (VL being the luminous voltage of the discharge lamp, IL being the current and Td the dead time). Current can flow in the discharge lamp during the dead time by the energy stored in this inductance.
摘要翻译： 为了防止在全桥系统的逆变器电路的死区时间内的灯熄灭，为了减少由逆变器电路输出的矩形波的上升时间和下降时间的延迟，并且防止形成瞬时变暗现象 辐射光，放电灯由具有由全桥系统的逆变器电路产生的矩形波的交流电操作。 当全桥系统的逆变电路被驱动时，所有开关装置关闭都将停止死区。 在全桥系统的逆变电路的后级，有一个电感。 电感值固定为LL> = VL / IL.Td（VL为放电灯的发光电压，IL为电流，Td为死区时间）。 电流可以在死区时间内通过存储在该电感中的能量流过放电灯。
-
-
-
-
-
-
-
-
-
搜索结果
36 条记录 (耗时 0.02 秒)
