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    Method of making discharge lamp having blow-molded arc tube ends
    2.
    发明授权
    Method of making discharge lamp having blow-molded arc tube ends 失效
    制造具有吹塑成型电弧管端部的放电灯的方法

    公开(公告)号：US3939538A

    公开(公告)日：1976-02-24

    申请号：US522825

    申请日：1974-11-11

    申请人： Wayne R. Hellman ,  Klaus Gottschalk ,  Edward C. De George

    发明人： Wayne R. Hellman ,  Klaus Gottschalk ,  Edward C. De George

    IPC分类号： H01J9/32 ,  H01J9/00

    CPC分类号： H01J9/326

    摘要： In arc discharge lamps containing a mixture of metals and halogen, and especially where an unvaporized excess of one metal is present, lamp color is very sensitive to end chamber shape. Color uniformity in production lamps using quartz arc tubes varying appreciably in diameter and wall thickness is greatly improved by molding end chambers of constant size and shape in the ends. The chamber may be formed at the time the end is pinched and the electrodes sealed in by using pinching jaws having a mold defining portion and momentarily pressurizing the arc tube to expand the heated and still plastic end into the mold. In production all lamps will have their ends expanded or belled to some extent, more in lamps close to the minimum diameter limit and less in lamps close to the maximum diameter limit.

    摘要翻译： 在包含金属和卤素的混合物的电弧放电灯中，特别是在存在未汽化过量的一种金属的情况下，灯的颜色对端室形状非常敏感。 使用在直径和壁厚可变的石英电弧管的生产灯中的颜色均匀性通过在端部成型具有恒定尺寸和形状的端室而大大提高。 腔室可以在端部被夹持时形成，并且通过使用具有模具限定部分的夹持爪将电极密封，并且瞬时加压电弧管以将加热的和仍然塑料的端部扩展到模具中。 在生产过程中，所有灯具的端部都会在一定程度上膨胀或振动，更多的是在接近最小直径限制的灯中，而在接近最大直径限制的灯中则更少。

    Metal halide lamp having open tungsten coil electrodes
    3.
    发明授权
    Metal halide lamp having open tungsten coil electrodes 失效
    金属卤化物灯具有开放的钨线圈电极

    公开(公告)号：US4105908A

    公开(公告)日：1978-08-08

    申请号：US681790

    申请日：1976-04-30

    申请人： Thomas J. Harding ,  Wayne R. Hellman

    发明人： Thomas J. Harding ,  Wayne R. Hellman

    IPC分类号： H01J61/073 ,  H01J61/88 ,  H01J61/18

    CPC分类号： H01J61/0732

    摘要： In a metal halide lamp of the sodium-scandium-thorium iodide type utilizing tungsten electrodes without emission mix, lumen depreciation during life results primarily from blackening of the arc tube wall by electrode sputtering during the glow-to-arc transition phase of lamp start-up. The glow-to-arc transition is speeded up by a lower glow-to-arc transition voltage which is achieved by using electrodes comprising an open tungsten wire coil on a tungsten shank, the coil comprising two layers of a composite wire made by open-winding a 2 mil overwind on a 4 mil core and then close-winding two layers of the composite wire on the shank. This decreases sputtering at starting and improves lamp maintenance.

    摘要翻译： 在采用不含发射混合物的钨电极的碘化钪 - 碘化钍金属卤化物灯中，寿命期间的流明衰减主要是由于灯启动期间的电弧转换阶段期间通过电极溅射使电弧管壁变黑， 向上。 通过使用包括在钨柄上的开放钨丝线圈的电极来实现的较低的辉光到电弧转变电压来加速发光到电弧转变，该线圈包括两层复合导线， 在4密耳的芯上缠绕2密耳的绕组，然后在柄上缠绕两层复合线。 这在启动时减少了溅射，并改善了灯的维护。