Protective metal silicate coating for a metal halide arc discharge lamp
    3.
    发明授权
    Protective metal silicate coating for a metal halide arc discharge lamp 失效
    金属卤化物电弧放电灯保护金属硅酸盐涂层

    公开(公告)号:US5394057A

    公开(公告)日:1995-02-28

    申请号:US927105

    申请日:1992-08-07

    摘要: An arc tube of fused silica for a metal halide arc discharge lamp including a fill for the arc tube comprised of a sodium halide, at least one additional metal halide, and an inert starting gas, the arc tube including a tube of fused silica having an inner wall defining an arc chamber, the inner wall of the tube having provided thereon a metal silicate coating which is vitreous and light-transmissive, and which is comprised of a silicate of at least one metal selected from the group consisting essentially of scandium, yttrium, and a rare earth element, and preferably which is the same metal as that of the at least one additional metal halide. Protection of the fused silica arc tube with the metal silicate coating reduces loss of the metallic portion of the fill by diffusion or reaction and corresponding buildup of free halogen in the arc tube.

    摘要翻译: 一种用于金属卤化物电弧放电灯的熔融石英电弧管,其包括由卤化钠,至少一种附加的金属卤化物和惰性起始气体组成的电弧管的填充物,所述电弧管包括熔融石英管,其具有 内壁限定电弧室,所述管的内壁上设置有玻璃质和透光性的金属硅酸盐涂层,所述金属硅酸盐涂层由至少一种金属的硅酸盐组成,所述金属选自基本上由钪,钇 和稀土元素,优选与至少一种另外的金属卤化物相同的金属。 用金属硅酸盐涂层保护熔融石英电弧管通过扩散或反应减少填充物的金属部分的损失,并且在电弧管中相应地形成游离卤素。

    Unitized chemically etched tungsten electrode
    4.
    发明授权
    Unitized chemically etched tungsten electrode 有权
    单位化学蚀刻钨电极

    公开(公告)号:US07218046B2

    公开(公告)日:2007-05-15

    申请号:US11498346

    申请日:2006-08-03

    IPC分类号: H01J17/18

    CPC分类号: H01J61/06 C23F1/04 H01J9/02

    摘要: A method of making a unitized tungsten electrode which exhibits superior mechanical and electrical properties which includes providing a length of cylindrical cut stock having a predetermined diameter and length. The stock is ground to form a rough unfinished electrode having an enlarged tip or nose portion at one end integrally connected to an elongated shank section. The unfinished electrode is treated by exposure to a chemical etchant for a time sufficient to form a finished electrode characterized by a smooth nose and shank surface and rounded undercut and ends. The invention includes the electrode formed by the described process.

    摘要翻译: 一种制造单位钨电极的方法,其表现出优异的机械和电学性能,其包括提供一定长度的具有预定直径和长度的圆柱形切割料。 将原料研磨以形成粗糙的未完成的电极,其在一端与扩展的柄部一体地连接,具有扩大的尖端或鼻部。 未完成的电极通过暴露于化学蚀刻剂来处理足以形成成品电极的时间,其特征在于具有光滑的鼻部和柄表面以及圆形底切和末端。 本发明包括通过所述方法形成的电极。

    Metal halide lamp including a source of available oxygen
    6.
    发明授权
    Metal halide lamp including a source of available oxygen 有权
    金属卤化物灯包括可用氧源

    公开(公告)号:US07868553B2

    公开(公告)日:2011-01-11

    申请号:US11951677

    申请日:2007-12-06

    IPC分类号: H01J61/20

    CPC分类号: H01J61/26 H01J61/125

    摘要: A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas, optionally free mercury, a halide component which includes a rare earth halide selected from the group consisting of lanthanum halides, praseodymium halides, neodymium halides, samarium halides, cerium halides, and combinations thereof. A source of available oxygen is present in the discharge vessel. The rare earth halide is present in an amount such that, during lamp operation, in combination with the source of available oxygen, it maintains a difference in vapor phase solubility for tungsten species between a wall of the discharge vessel and at least a portion of at least one of the electrodes.

    摘要翻译: 灯包括放电容器。 钨电极延伸到放电容器中。 可离子化的填充物被密封在容器内。 填充物包括缓冲气体,任选的游离汞,卤化物组分,其包括选自卤化镧,卤化镨,卤化钕,钐卤化物,卤化铈及其组合的稀土卤化物。 可用的氧气源存在于放电容器中。 稀土卤化物的存在量使得在灯操作期间,与可用氧源组合,它保持了在放电容器的壁和至少一部分 至少一个电极。

    METAL HALIDE LAMP INCLUDING A SOURCE OF AVAILABLE OXYGEN
    7.
    发明申请
    METAL HALIDE LAMP INCLUDING A SOURCE OF AVAILABLE OXYGEN 有权
    金属卤素灯,包括可用的氧气源

    公开(公告)号:US20090146576A1

    公开(公告)日:2009-06-11

    申请号:US11951677

    申请日:2007-12-06

    CPC分类号: H01J61/26 H01J61/125

    摘要: A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas, optionally free mercury, a halide component which includes a rare earth halide selected from the group consisting of lanthanum halides, praseodymium halides, neodymium halides, samarium halides, cerium halides, and combinations thereof. A source of available oxygen is present in the discharge vessel. The rare earth halide is present in an amount such that, during lamp operation, in combination with the source of available oxygen, it maintains a difference in vapor phase solubility for tungsten species between a wall of the discharge vessel and at least a portion of at least one of the electrodes.

    摘要翻译: 灯包括放电容器。 钨电极延伸到放电容器中。 可离子化的填充物被密封在容器内。 填充物包括缓冲气体,任选的游离汞,卤化物组分,其包括选自卤化镧,卤化镨,卤化钕,卤化钐,铈卤化物及其组合的稀土卤化物。 可用的氧气源存在于放电容器中。 稀土卤化物的存在量使得在灯操作期间,与可用氧源组合,它保持了在放电容器的壁和至少一部分 至少一个电极。

    METAL HALIDE LAMP WITH HALOGEN-PROMOTED WALL CLEANING CYCLE
    9.
    发明申请
    METAL HALIDE LAMP WITH HALOGEN-PROMOTED WALL CLEANING CYCLE 审中-公开
    金属卤化物灯与卤素促进壁清洁循环

    公开(公告)号:US20090146571A1

    公开(公告)日:2009-06-11

    申请号:US11951724

    申请日:2007-12-06

    IPC分类号: H01J61/22 H01J61/12

    摘要: A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas, optionally free mercury, a halide component which includes a rare earth halide selected from the group consisting of lanthanum halides, praseodymium halides, neodymium halides, samarium halides, cerium halides, and combinations thereof, a source of available halogen. The discharge vessel optionally includes a source of available oxygen. The source of available halogen and optional source of available oxygen are present in an amount such that the vapor phase solubility of tungsten species in the fill during lamp operation is lower adjacent at least a portion of one of the electrodes than at a wall of the discharge vessel, such that tungsten deposited on the wall during lamp operation is transported back to the electrode.

    摘要翻译: 灯包括放电容器。 钨电极延伸到放电容器中。 可离子化的填充物被密封在容器内。 填充物包括缓冲气体,任选的游离汞,卤化物组分,其包括选自卤化镧,卤化镨,卤化钕,卤化钐,铈卤化物及其组合的稀土卤化物,可用卤素源 。 放电容器可选地包括可用氧源。 可用卤素的来源和可用氧的可选来源存在的量使得在灯操作期间钨物质在填充物中的气相溶解度相对于一个电极的至少一部分比在放电壁处的气相溶解度低 使得在灯操作期间沉积在壁上的钨被运送回电极。

    Stable electrode design and method
    10.
    发明授权

    公开(公告)号:US07101245B2

    公开(公告)日:2006-09-05

    申请号:US10746991

    申请日:2003-12-24

    IPC分类号: H01J9/00

    CPC分类号: H01J61/06 C23F1/04 H01J9/02

    摘要: A method of making a unitized tungsten electrode which exhibits superior mechanical and electrical properties which includes providing a length of cylindrical cut stock having a predetermined diameter and length. The stock is ground to form a rough unfinished electrode having an enlarged tip or nose portion at one end integrally connected to an elongated shank section. The unfinished electrode is treated by exposure to a chemical etchant for a time sufficient to form a finished electrode characterized by a smooth nose and shank surface and rounded undercut and ends. The invention includes the electrode formed by the described process.