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    High pressure discharge lamp with a thermally improved anode
    2.
    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

    申请人： Paul G. Mathews ,  Rocco T. Giordano ,  Gary R. Allen ,  Timothy P. Dever ,  Viktor K. Varga ,  Jeffrey D. Johnson

    发明人： Paul G. Mathews ,  Rocco T. Giordano ,  Gary R. Allen ,  Timothy P. Dever ,  Viktor K. Varga ,  Jeffrey D. Johnson

    IPC分类号： H01J9/02 ,  H01J61/073 ,  H01J61/52 ,  H01J17/10 ,  H01J61/06

    CPC分类号： H01J61/0732 ,  H01J61/0735 ,  H01J61/526 ,  H01J9/02

    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。

    Xenon metal halide lamp having improved thermal gradient characteristics for longer lamp life
    4.
    发明授权
    Xenon metal halide lamp having improved thermal gradient characteristics for longer lamp life 失效
    氙金属卤化物灯具有改善的热梯度特性以延长灯的寿命

    公开(公告)号：US06400076B1

    公开(公告)日：2002-06-04

    申请号：US08649887

    申请日：1996-05-14

    申请人： Gary R. Allen ,  Rocco T. Giordano ,  Gary O. Jacobs ,  Kenneth S. King ,  Timothy P. Dever

    发明人： Gary R. Allen ,  Rocco T. Giordano ,  Gary O. Jacobs ,  Kenneth S. King ,  Timothy P. Dever

    IPC分类号： H01J1704

    CPC分类号： H01J61/18 ,  H01J61/30 ,  H01J61/40 ,  H01J61/82

    摘要： A high brightness discharge light source having improved thermal balance characteristics includes a lamp envelope having an arc chamber formed therein and a pair of electrodes extending into opposite ends of the arc chamber so as to be displaced from one another by a distance of no greater than 4 mm. A fill disposed within the arc chamber is excited to a discharge state upon the introduction of an excitation energy coupled through the pair of electrodes. The light source is operated vertically so that one of the electrodes is disposed at the top region and the other electrode is disposed at the bottom region of the arc chamber. The arc chamber is formed having a diameter dimension which is just larger than the spacing between the electrodes, and a height dimension which is approximately twice the diameter dimension. The diameter dimension is substantially uniform along the length of the arc chamber. The uniform diameter characteristic is effective so that the thermal operating properties associated with the discharge state are substantially equally distributed from the top to the bottom regions of the arc chamber thereby resulting in extending the life of this light source to approximately 6000 hours.

    摘要翻译： 具有改善的热平衡特性的高亮度放电光源包括具有形成在其中的电弧室的灯壳和延伸到电弧室的相对端的一对电极，以便彼此相距不大于4 mm。 当引入通过一对电极耦合的激发能量时，设置在电弧室内的填充物被激发到放电状态。 光源垂直运行，使得一个电极设置在顶部区域，另一个电极设置在电弧室的底部区域。 电弧室形成的直径尺寸刚好大于电极之间的间距，高度尺寸大约是直径尺寸的两倍。 直径尺寸沿电弧室的长度基本均匀。 均匀直径特性是有效的，使得与放电状态相关联的热操作性质从电弧室的顶部到底部区域基本均匀分布，从而导致该光源的寿命延长到大约6000小时。

    Vehicle headlamp comprising a metal-halide discharge lamp including an inner envelope and a surrounding shroud
    10.
    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

    申请人： Paul G. Mathews ,  Gary R. Allen

    发明人： Paul G. Mathews ,  Gary R. Allen

    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.