Method of making a double-ended high-pressure discharge lamp
    1.
    发明授权
    Method of making a double-ended high-pressure discharge lamp 失效
    制造双头高压放电灯的方法

    公开(公告)号:US5108333A

    公开(公告)日:1992-04-28

    申请号:US452221

    申请日:1989-12-15

    IPC分类号: H01J9/24

    CPC分类号: H01J9/247

    摘要: To make a small high-pressure discharge lamp, for example of 50 W rating or less, and suitable, for example, for automotive applications, a quartz glass tube is heated, formed with constrictions, and a gas passed therebetween to expand the portion of the tube between the constrictions into olive shape to form the discharge vessel (6). A preformed first electrode system is introduced through one of the constrictions. The electrode system preferably has a zig-zag lead (9) slightly larger than the internal diameter of the tube to provide for self-centering. The tube is then isolated from atmosphere, for example by being placed in a glove box or coupled to a pumping head (15), for introduction therein of a fill substance, for example in pellet form, of a metal halide and, if desired, mercury; and a fill gas, such as argon or, preferably, xenon, preferably after cleaning and flushing the tube. A second electrode system is then introduced, for example within the glove box, and the end of the tube sealed off, with the fill substance therein. A second pinch seal (18) can then be formed externally of the glove box, or while the tube is still connected to a pumping head, and excess end pieces of the tube and the electrodes are cut off.

    摘要翻译: 为了制造例如50W等级以下的小型高压放电灯,例如适用于汽车用途的石英玻璃管被加热,形成有收缩状态,并且通过它们之间的气体来膨胀部分 管之间的收缩成橄榄形,形成放电容器(6)。 通过其中一个收缩部分引入预先形成的第一电极系统。 电极系统优选具有比管的内径略大的锯齿形引线(9),以提供自定心。 然后将管与大气隔离,例如通过放置在手套箱中或耦合到泵头(15),以在其中引入金属卤化物的填充物质,例如颗粒形式,如果需要, 汞; 以及填充气体,例如氩气,或优选氙气,优选在清洁和冲洗管子之后。 然后例如在手套箱内引入第二电极系统,并且密封管的端部,其中填充物质。 然后可以在手套箱的外部形成第二夹紧密封件(18),或者当管子仍然连接到泵头时,并且管子和电极的多余的端部件被切断。