Protective metal silicate coating for a metal halide arc discharge lamp
    2.
    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。

    Vehicle headlamp comprising a metal-halide discharge lamp including an
inner envelope and a surrounding shroud
    3.
    发明授权
    Vehicle headlamp comprising a metal-halide discharge lamp including an inner envelope and a surrounding shroud 失效
    车辆前照灯包括包括内封套和周围护罩的金属卤化物放电灯

    公开(公告)号:US5253153A

    公开(公告)日:1993-10-12

    申请号:US945543

    申请日:1992-09-16

    IPC分类号: F21S8/10 H01J61/34 F21V7/09

    CPC分类号: H01J61/34 F21S48/1186

    摘要: This headlamp comprises a reflector and a discharge lamp comprising an inner envelope having a longitudinal axis coinciding with the optical axis of the reflector. The inner envelope includes a bulbous portion, a front leg extending along the optical axis from the bulbous portion toward the front of the headlamp, and a back leg extending along the optical axis from the bulbous portion toward the reflector. The discharge lamp further comprises a tubular shroud comprising a first hollow portion surrounding the front leg of the inner envelope, a second hollow portion surrounding the back leg of the inner envelope, and a bulbous portion between the two hollow portions. The front leg is provided with a large-diameter integral enlargement (referred to herein as a "large-diameter maria"), and the shroud is joined to the front leg by a maria seal located at the outer periphery of this maria. The shroud is joined to the back leg of the inner envelope by a low-profile seal of substantially smaller diameter than the large-diameter maria seal located much closer to the longitudinal axis of the inner envelope than is the large-diameter maria seal.The bulbous portion of the shroud has (i) a back zone facing the reflector of generally ellipsoidal configuration and (ii) a central axis upwardly offset by a small distance from the longitudinal axis of the inner envelope. This offset has been found to substantially increase the ratio of the seeing light to the glare light in the headlamp beam.

    Universal burn metal halide lamp
    5.
    发明授权
    Universal burn metal halide lamp 失效
    通用燃烧金属卤化物灯

    公开(公告)号:US5708328A

    公开(公告)日:1998-01-13

    申请号:US892857

    申请日:1992-06-03

    CPC分类号: H01J61/30 H01J61/825

    摘要: A metal halide arc discharge lamp rated for not more than 150 watts and 100 volts and which can be operated in either a horizontal or vertical position without a significant change in color temperature or lumen output has an ellipsoidal arc chamber mounted within a nitrogen-containing outer envelope. The arc chamber contains a pair of electrodes, mercury and sodium and scandium iodides and is coated at each end with a heat reflective coating. The chamber aspect ratio, electrode insertion length, metal halide density, coating length and wall loading are defined within narrow ranges.

    摘要翻译: 额定不超过150瓦和100伏特的金属卤化物电弧放电灯,其可以在水平或垂直位置操作而色温或流明输出没有显着变化,其中椭圆弧电弧室安装在含氮外部 信封。 电弧室包含一对电极,汞和钠和钪碘化物,并在每一端涂覆有热反射涂层。 室宽度比,电极插入长度,金属卤化物密度,涂层长度和壁荷载限定在窄范围内。

    Means for supporting and sealing the lead structure of a lamp
    6.
    发明授权
    Means for supporting and sealing the lead structure of a lamp 失效
    用于支撑和密封灯的引线结构的装置

    公开(公告)号:US5598063A

    公开(公告)日:1997-01-28

    申请号:US991603

    申请日:1992-12-16

    IPC分类号: H01J61/36 H01J61/52

    CPC分类号: H01J61/523 H01J61/368

    摘要: This lamp comprises an envelope of vitreous light-transmitting material enclosing an internal space, light-generating means within said space, and conductive lead structure projecting into said space and comprising inner and outer lead members and a foil member connected between said lead members. A first portion of the envelope surrounds the foil member and is sealed thereto, and a second portion of the envelope is located inwardly of the first portion. A tubular bead of vitreous material is provided about the inner lead member. This bead fits within the second envelope portion, is joined thereto, and supports the inner lead member in a precise predetermined portion within the envelope. The inner lead member projects inwardly beyond the bead and provides support for the light-generating means.

    摘要翻译: 该灯包括包围内部空间的玻璃光透射材料的包层,在所述空间内的发光装置和突出到所述空间中的导电引线结构,并且包括内部和外部引线构件以及连接在所述引线构件之间的箔构件。 信封的第一部分围绕箔片部件并被密封在其上,并且信封的第二部分位于第一部分的内部。 围绕内部引导部件设置有玻璃质材料的管状小珠。 该胎圈装配在第二包封部分内,与其相连接,并且在封套内以精确的预定部分支撑内部引线部件。 内部引线构件向内突出超过珠并且为发光装置提供支撑。

    High pressure discharge lamp with a thermally improved anode
    7.
    发明授权
    High pressure discharge lamp with a thermally improved anode 失效
    具有热改性阳极的高压放电灯

    公开(公告)号:US5357167A

    公开(公告)日:1994-10-18

    申请号:US910487

    申请日:1992-07-08

    摘要: A high pressure discharge lamp with a thermally improved anode, as well as a method of making such a lamp, are disclosed. The lamp includes a refractory arc tube with a hermetically sealed arc chamber, a fill in the arc chamber for facilitating light generation, and an anode and a cathode extending into the hermetically sealed arc chamber and being spaced apart from each other. The anode comprises a shank of refractory metal, a cylindrically shaped refractory metal sleeve on a portion of the shank, and an end proximally facing the cathode. The anode end comprises a substantially solid mass of refractory metal, and is integrally joined to both the shank and the metal sleeve to facilitate heat flow from the anode end to the shank and sleeve. The anode end preferably is generally shaped as a hemisphere facing the cathode. The refractory metal sleeve is preferably one or more layers of a helically wound refractory metal wire having an outer diameter more than twice a diameter of the shank.

    摘要翻译: 公开了具有热改性阳极的高压放电灯以及制造这种灯的方法。 灯包括具有密封电弧室的耐火弧管,用于促进光产生的电弧室中的填充物,以及延伸到密封电弧室中并彼此间隔开的阳极和阴极。 阳极包括难熔金属的柄,在柄的一部分上的圆柱形耐火金属套管和靠近阴极的端部。 阳极端包括基本上固体的难熔金属块,并且一体地连接到柄和金属套筒两者以便于从阳极端到柄和套筒的热流。 阳极端部优选地通常成形为面向阴极的半球。 难熔金属套管优选地是具有外径超过柄的两倍直径的螺旋缠绕难熔金属线的一层或多层。