A high pressure discharge lamp with a thermally improved anode and method of making
    2.
    发明公开
    A high pressure discharge lamp with a thermally improved anode and method of making 失效
    具有它们的制备改进的热行为和过程的阳极高压放电灯。

    公开(公告)号:EP0579429A1

    公开(公告)日:1994-01-19

    申请号:EP93305242.5

    申请日:1993-07-05

    IPC分类号: H01J61/073

    摘要: A high pressure discharge lamp (10) with a thermally improved anode (18), as well as a method of making such a lamp, are disclosed. The lamp includes a refractory arc tube (12) with a hermetically sealed arc chamber (14), a fill in the arc chamber for facilitating light generation, and an anode (18) and a cathode (16) extending into the hermetically sealed arc chamber (14) and being spaced apart from each other. The anode (18) comprises a shank of refractory metal (20), a cylindrically shaped refractory metal sleeve (318b) on a portion of the shank (20), and an end proximally facing the cathode (16). The anode (18) end comprises a substantially solid mass of refractory metal, and is integrally joined to both the shank (20) and the metal sleeve (318b) to facilitate heat flow from the anode (18) end to the shank (20) and sleeve (312b). The anode (18) end preferably is generally shaped as a hemisphere facing the cathode (16). The fill may comprise mercury, metal halide, and xenon at a relatively high fill pressure. The anode (18) may be formed by, first, providing a refractory metal shank (20), and placing a refractory metal sleeve (318b), e.g., one or more layers of a helically wound refractory metal wire, along a portion of the shank (20), to form a sleeve-shank combination. A portion of the sleeve-shank combination, facing downwards, is then heated sufficiently to cause metal from the sleeve-shank combination to ball up and form an anode end that integrally joins both the shank (20) and the metal sleeve (318b). The heating is preferably sufficient to cause the anode (18) end to ball up into a generally hemispherical shape.

    摘要翻译: 一种高压放电灯(10)具有热改善阳极(18),以及制备检测灯的方法中,游离缺失光盘。 该灯包括一耐火弧光管(12)配有一个密封的电弧室(14),在所述电弧室中促进光产生的填充,并且在延伸到气密密封的电弧室中的阳极(18)和阴极(16) (14)和从海誓山盟隔开。 阳极(18)包括难熔金属(20),在杆部(20)的一部分的圆筒形难熔金属套筒(318B)的柄部,并结束面向近侧的阴极(16)。 阳极(18)的端部包括难熔金属的基本上固体的质量,并且一体地连接到两个柄部(20)和所述金属套筒(318B),以促进从阳极(18)端部到柄部的热流(20) 和套筒(312B)。 阳极(18)端部优选地基因反弹成形为面向所述阴极(16)一个半球。 填充可以在相对高的填充压力包括汞,金属卤化物和氙。 阳极(18)可通过首先形成,提供了一个难熔金属柄(20),以及将难熔金属套筒(318B),例如,螺旋缠绕的难熔金属丝的一个或多个层,沿的一部分 柄(20),以形成一套筒柄组合。 套筒柄组合的一部分,面向下,然后加热到足以从套筒柄组合导致金属球向上和形式在阳极侧并一体地连接两个柄部(20)和所述金属套筒(318B)。 加热优选为足以使阳极(18)端,球成一个基因反弹半球形。