Method of making a vacuum-tight seal between a ceramic and a metal part,
sealed structure, and discharge lamp having the seal
    3.
    发明授权
    Method of making a vacuum-tight seal between a ceramic and a metal part, sealed structure, and discharge lamp having the seal 失效
    在陶瓷和金属部件之间进行真空密封的密封结构和具有密封的放电灯的方法

    公开(公告)号:US5552670A

    公开(公告)日:1996-09-03

    申请号:US160615

    申请日:1993-12-01

    摘要: A vacuum-tight seal, particularly for an arc tube or discharge vessel for a metal halide or sodium high-pressure discharge lamp, is made by forming the arc tube of transparent ceramic, typically Al.sub.2 O.sub.3, having two open ends, into which connecting plugs (3), with central openings, are sealed. Open metal tubes (4) fitting into the openings of the plugs (3) are then vacuum-tightly sintered therein. An electrode system (5, 10, 10'), forming a subassembly with a current supply lead or lead-through (6, 11, 14, 15, 20, 24) is provided, having an outer diameter fitting into the metal tube. After mounting one of the electrode systems and lead-through into the metal tube (4), and welding the lead-through to the metal tube, the vessel can be evacuated through the still open tube (4) at the other end, supplied with suitable fill substances and an ignition gas, such as argon or xenon, and the second electrode system then introduced, and welded, for example by a laser, to the outer end of the other metal tube (4). The arrangement permits use of molybdenum tubes, molybdenum lead-throughs, in Al.sub.2 O.sub.3 ceramic, in spite of different thermal coefficients of expansion. Preferably, the metal tube extends beyond the end face of the vessel and/or sealing plug (3), to permit free access during the welding step and reduce heat transfer into the interior of the arc tube or discharge vessel (1).

    摘要翻译: 真空密封,特别是用于金属卤化物或钠高压放电灯的电弧管或放电容器,通过形成具有两个开口端的透明陶瓷的电弧管(通常为Al 2 O 3)制成,连接插头 3),具有中心开口,被密封。 然后将插入塞子(3)的开口中的开放金属管(4)真空密封在其中。 设置具有电流供应引线或引线(6,11,14,15,20,24)的子组件的电极系统(5,10,10'),其外径配合到金属管中。 在将一个电极系统和引线安装到金属管(4)中之后,将引线焊接到金属管上,容器可以通过另一端的静止开口管(4)抽真空, 合适的填充物质和诸如氩气或氙气的点燃气体,然后将第二电极系统引入并例如通过激光焊接到另一金属管(4)的外端。 尽管热膨胀系数不同,但这种布置允许在Al2O3陶瓷中使用钼管,钼引线。 优选地,金属管延伸超过容器和/或密封塞(3)的端面,以允许在焊接步骤期间自由进入并且减少热量传递到电弧管或放电容器(1)的内部。

    Metal-halide discharge lamp with ceramic discharge vessel, and method of
its manufacture
    4.
    发明授权
    Metal-halide discharge lamp with ceramic discharge vessel, and method of its manufacture 失效
    具有陶瓷放电容器的金属卤化物放电灯及其制造方法

    公开(公告)号:US5532552A

    公开(公告)日:1996-07-02

    申请号:US328492

    申请日:1994-10-25

    摘要: To provide an effective seal for a metal-halide discharge lamp having a ceramic discharge vessel (4), the seal is formed in multiple parts, in which a first part, adjacent the interior or discharge side of the vessel, includes a melt component (14a) which is highly resistant to attack by metal halides within the fill of the lamp. It may contain only 0-12%, by weight, of SiO.sub.2 and has a high melting point, in the order of between 1500.degree.-1700.degree. C. The melt-in region remote from the discharge side is melt-sealed by a vitreous composition (14b), devoid of pores, voids, bubbles, fissures or cracks, to form an effective, vacuum-tight seal, and protected from attack by the metal halides by the mechanically less stable seal in the first zone. The second composition has a much lower melting point, for example in the order of between 1200.degree.-1400.degree. C., and has 20-40% SiO.sub.2. Preferably, and for ease of manufacture, the capillary gap in which the melt seal is formed decreases in dimension towards the discharge side, so that an effective capillary seal can be formed at the higher melting point temperature before the second, lower melting point temperature seal is made.

    摘要翻译: 为了为具有陶瓷放电容器(4)的金属卤化物放电灯提供有效的密封,密封件形成为多个部分,其中与容器的内部或排出侧相邻的第一部分包括熔体成分( 14a),其高度抵抗金属卤化物在灯的填充物内的侵蚀。 它可以仅含有0-12重量%的SiO 2并且具有高的熔点,为1500-117℃左右。远离排出侧的熔融区被玻璃状物熔化密封 组合物(14b),没有孔,空隙,气泡,裂缝或裂纹,以形成有效的真空密封,并且通过在第一区域中机械上不太稳定的密封件防止金属卤化物的侵蚀。 第二组合物具有低得多的熔点,例如在1200-140℃之间,具有20-40%的SiO 2。 优选地,为了易于制造,形成熔体密封的毛细管间隙朝向排出侧减小尺寸,使得在第二较低熔点温度密封件之前可以在较高熔点温度下形成有效的毛细管密封 是做的

    Single-ended low-power discharge lamp, and method of its manufacture
    6.
    发明授权
    Single-ended low-power discharge lamp, and method of its manufacture 失效
    单端低功率放电灯及其制造方法

    公开(公告)号:US5528101A

    公开(公告)日:1996-06-18

    申请号:US125120

    申请日:1993-09-22

    摘要: The discharge or arc tube chamber of a low-power high-pressure discharge lamp is, in one single step, sealed and shaped by mold or form-blowing by using pinch or press jaws (30, 31) which have concave hollows (34) formed therein to clearly define the shape of the discharge vessel, and hence of the discharge or arc tube chamber, to permit reproducible results with little variation between individual lamps to be made in a single manufacturing step. Additionally, an inclined ramp-like surface can be formed at the narrow sides (14) of the pinch seal extending towards the walls (11) of the discharge chamber (3) to thereby eliminate pockets beneath the electrodes. Preferably, the electrode shafts diverge with respect to the optical axis (A) of the lamp to increase the electrode spacing, and thus permit operation at a lower operating pressure, with respect to prior art lamps.

    摘要翻译: 低功率高压放电灯的放电管或电弧管室在一个单一步骤中,通过使用具有凹形凹陷(34)的夹紧或压力钳(30,31),通过模具或吹塑来密封和成型, 形成在其中以清楚地限定放电容器的形状,并因此明确地限定放电或电弧管室的形状,以允许在单个制造步骤中在各个灯之间几乎不发生变化的可再现结果。 此外,倾斜的斜坡状表面可以形成在压紧密封件的窄边(14)处,朝向排出室(3)的壁(11)延伸,从而消除电极下方的凹穴。 优选地,电极轴相对于灯的光轴(A)发散,以增加电极间隔,因此允许相对于现有技术的灯在较低的工作压力下操作。

    Pinch-sealed high pressure discharge lamp, and method of its manufacture
    7.
    发明授权
    Pinch-sealed high pressure discharge lamp, and method of its manufacture 失效
    PINCH密封高压放电灯及其制造方法

    公开(公告)号:US5142195A

    公开(公告)日:1992-08-25

    申请号:US680413

    申请日:1991-04-04

    IPC分类号: C03B23/217 H01J9/32 H01J61/36

    CPC分类号: H01J9/326 H01J61/368

    摘要: A double-ended, double-sided pinch seal discharge lamp has pinch seals at posite ends of a discharge vessel, in which the broad side surfaces of the pinch seal, retaining a molybdenum foil (8) is formed with lateral constrictions or indentations (16) located at the transition zone between the pinch seal and the bulbous or discharge vessel portion (3). Preferably, excess glass material from the side surfaces or ribs (14) formed on the side surfaces of the pinch or press seal is squeezed, in the transition zone, towards the bulb or central region (3) during the pinch sealing process to form reinforcement ribs (17), thereby strengthening the transition zone between the pinch seal (5) and the bulb portion (3) of the lamp.

    摘要翻译: 双端双面夹紧密封放电灯在放电容器的相对端处具有夹紧密封,其中夹紧密封件的宽侧表面保持钼箔(8)形成有横向收缩或压痕(16 )位于夹紧密封件与球状体或放电容器部分(3)之间的过渡区域。 优选地,在夹紧密封过程期间,形成在夹紧或压力密封件的侧表面上的多余的玻璃材料或过渡区域中的肋(14)被挤压到灯泡或中心区域(3)以形成增强 肋(17),从而加强夹紧密封件(5)和灯泡部分(3)之间的过渡区域。

    Light balance compensated mercury vapor and halogen high-pressure
discharge lamp
    8.
    发明授权
    Light balance compensated mercury vapor and halogen high-pressure discharge lamp 失效
    光平衡补充汞蒸汽和卤素高压放电灯

    公开(公告)号:US5239232A

    公开(公告)日:1993-08-24

    申请号:US689155

    申请日:1991-04-22

    IPC分类号: H01J61/20

    CPC分类号: H01J61/20

    摘要: The high-pressure lamp has a fill including a metal halide of two groups, which the first group is a first rare earth halide of dysprosium, thulium and optionally holmium, and a second group of rare earth halide, namely cerium, neodymium, praseodymium, lanthanum; and an alkali metal halide, such as sodium halide and/or cesium halide, preferably iodide or bromide of sodium and/or cesium. The lamp has a high proportion of light radiation in the red range of the color spectrum to provide substantially improved color rendering indices, particularly in the Ra.sub.8 region, thereby providing better color balance, without loss of lifetime.

    摘要翻译: 高压灯具有包括两组金属卤化物的填充物,其中第一组是镝,ium和任选的钬的第一稀土卤化物,和第二组稀土卤化物,即铈,钕,镨 ,镧 和碱金属卤化物,例如卤化钠和/或卤化铯,优选钠和/或铯的碘化物或溴化物。 该灯在色谱的红色范围内具有高比例的光辐射,以提供显着改善的显色指数,特别是在Ra8区域中,从而提供更好的颜色平衡,而不损失寿命。