Apparatus for securing an amalgam at the apex of an electrodeless
fluorescent lamp
    1.
    发明授权
    Apparatus for securing an amalgam at the apex of an electrodeless fluorescent lamp 失效
    用于将汞齐固定在无电极荧光灯的顶点的装置

    公开(公告)号:US5500567A

    公开(公告)日:1996-03-19

    申请号:US194549

    申请日:1994-02-10

    摘要: A glass rod extending through and sealed to the exhaust tube of an electrodeless SEF fluorescent discharge lamp has a metal support member at one end thereof for supporting an amalgam at or near the apex of the lamp envelope. The metal support member may comprise a spiral-shaped wire, a wire screen, or a wire basket. Preferably, the amalgam is maintained in contact with the apex of the lamp envelope. If desired, the metal support member may comprise a magnetic material to allow for magnetic transport of the amalgam assembly during lamp processing. The metal support member restricts spreading of the amalgam when in a liquid state; and the glass rod provides rigid support for the amalgam independent of lamp orientation.

    摘要翻译: 延伸穿过并密封到无电极SEF荧光放电灯的排气管的玻璃棒在其一端具有金属支撑构件,用于在灯壳的顶点处或附近支撑汞齐。 金属支撑构件可以包括螺旋形线,丝网或线篮。 优选地,汞齐保持与灯壳的顶点接触。 如果需要,金属支撑构件可以包括磁性材料,以允许汞灯组件在灯处理期间磁性运输。 金属支撑构件在液态时限制汞齐的扩散; 并且玻璃棒提供了独立于灯取向的汞齐的刚性支撑。

    Two-stage resonant starting circuit for an electrodeless high intensity
discharge lamp
    2.
    发明授权
    Two-stage resonant starting circuit for an electrodeless high intensity discharge lamp 失效
    用于无电极高强度放电灯的两级谐振启动电路

    公开(公告)号:US5057750A

    公开(公告)日:1991-10-15

    申请号:US622246

    申请日:1990-12-04

    摘要: A starting circuit for an electrodeless HID lamp provides a two-stage resonant starting signal to a gas probe starter of the type comprising a starting chamber which contains a relatively low-pressure gas and is attached to the outer wall of the arc tube. The starting circuit comprises a resonant LC circuit of variable impedance including the series combination of a variable inductance and the parasitic capacitance between the gas probe starter and the excitation coil. In operation, the resonant circuit is tuned to a predetermined value so that, upon application of an RF signal to the excitation coil, resonant operation of the starting circuit results in the application of a sufficiently high starting voltage to the starting chamber to ignite a low-current glow discharge therein. Once the glow discharge is ignited, the starting circuit is retuned to ensure that a sufficiently high starting voltage is capacitively coupled to the arc tube to ionize the arc tube fill and initiate an arc discharge therein.

    摘要翻译: 用于无电极HID灯的起动电路为包括起始室的类型的气体探针起动器提供两级谐振起始信号,该启动室包含相对低压的气体并附接到电弧管的外壁。 起动电路包括可变阻抗的谐振LC电路,其包括可变电感和气体探针起动器与励磁线圈之间的寄生电容的串联组合。 在操作中,谐振电路被调谐到预定值,使得在向激励线圈施加RF信号时,启动电路的谐振操作导致向起始室施加足够高的启动电压以点燃低电平 - 其中的电流辉光放电。 一旦辉光放电被点燃,启动电路被重新调整以确保足够高的启动电压电容耦合到电弧管,以使电弧管填充物电离并在其中引发电弧放电。

    Amalgam support in an electrodeless fluorescent lamp
    3.
    发明授权
    Amalgam support in an electrodeless fluorescent lamp 失效
    汞合金支持无电极荧光灯

    公开(公告)号:US5412288A

    公开(公告)日:1995-05-02

    申请号:US166857

    申请日:1993-12-15

    IPC分类号: H01J65/04 H05B41/16

    CPC分类号: H01J65/048 H01J61/28

    摘要: An electrodeless SEF fluorescent discharge lamp of the type having an envelope with a re-entrant cavity formed therein for containing an excitation coil includes an amalgam positioned for maintaining an optimum mercury vapor pressure during lamp operation. An exhaust tube extending through the re-entrant cavity has an extension into the envelope toward the apex of the lamp envelope. The exhaust tube extension has a rim portion for holding an amalgam support in position within the lamp envelope. The amalgam support preferably comprises a wire wrapped about and held in place by the rim portion. At the other end of the wire, an amalgam is wetted to a wire screen or helical wire structure at a predetermined optimal location within the lamp envelope. Alternatively, two amalgams are supported by the amalgam support at predetermined optimal locations for starting and steady-state operation of the lamp, respectively.

    摘要翻译: 一种无电极SEF荧光放电灯,其具有形成在其中的用于容纳励磁线圈的入口空腔的外壳,其包括汞齐,其被定位用于在灯操作期间保持最佳汞蒸气压。 延伸通过入口腔的排气管具有朝向灯壳的顶点的信封的延伸。 排气管延伸部具有用于将汞齐支撑件保持在灯壳内的适当位置的边缘部分。 汞齐支架优选地包括由边缘部分缠绕并保持就位的线。 在电线的另一端,在灯罩内的预定最佳位置将汞齐润湿至丝网或螺旋线结构。 或者,两个汞齐由汞齐支撑件分别由用于灯的启动和稳态操作的预定最佳位置支撑。

    Starting circuit for an electrodeless high intensity discharge lamp
    5.
    发明授权
    Starting circuit for an electrodeless high intensity discharge lamp 失效
    无电极高强度放电灯的启动电路

    公开(公告)号:US5103140A

    公开(公告)日:1992-04-07

    申请号:US622024

    申请日:1990-12-04

    摘要: A starting circuit for an electrodeless HID lamp, comprising a series resonant LC circuit of variable impedance, provides a starting voltage to a fixed or movable starting probe substantially simultaneously with the application of power to the excitation coil from the main power source. In a preferred embodiment, the starting circuit provides a starting signal to a gas probe starter of the type including a fixed starting electrode coupled to a starting chamber which contains a relatively low-pressure gas and is attached to the outer wall of the arc tube. Resonant operation of the starting circuit results in the application of a sufficiently high voltage to ignite a glow discharge in the low-pressure starting chamber. In turn, the starting voltage is capacitively coupled to the arc tube, ionizing the fill and initiating an arc discharge therein. In an alternative embodiment, additional circuitry is provided for ensuring that the glow discharge in the low-pressure starting chamber is extinguished after initiation of the arc discharge.

    摘要翻译: 一种用于无电极HID灯的起动电路,包括可变阻抗的串联谐振LC电路,在从主电源向励磁线圈施加电力的同时基本上同时向固定的或可移动的起动探针提供启动电压。 在优选实施例中,启动电路向气体探测启动器提供启动信号,该启动器包括耦合到起始室的固定起动电极,该起动室包含相对低压的气体,并连接到电弧管的外壁。 起动电路的共振操作导致施加足够高的电压以点燃低压起动室中的辉光放电。 反过来,启动电压电容耦合到电弧管,使填充物电离并在其中引发电弧放电。 在替代实施例中,提供了额外的电路,用于确保低电压启动室中的辉光放电在电弧放电开始后熄灭。

    Apparatus for securing an amalgam at the apex of an electrodeless
fluorescent lamp
    6.
    发明授权
    Apparatus for securing an amalgam at the apex of an electrodeless fluorescent lamp 失效
    用于将汞齐固定在无电极荧光灯的顶点的装置

    公开(公告)号:US5559392A

    公开(公告)日:1996-09-24

    申请号:US258879

    申请日:1994-06-13

    摘要: A first portion of a spiral wire support for an amalgam is securely fitted into an exhaust tube formed in a re-entrant cavity of an electrodeless fluorescent lamp before attachment and sealing of the re-entrant cavity to the bulb of the lamp. A second portion of the spiral wire support extends into the bulb and holds an amalgam in thermal contact with the apex of the bulb. The second portion has a larger diameter than the first portion to ensure against movement of the spiral wire support into the exhaust tube. The end of the second portion of the spiral wire support is wetted with an alloy capable of forming an amalgam with mercury prior to insertion of the wire support into the exhaust tube. Mercury is added to the bulb after final evacuation of the bulb in preparation for dosing the lamp with its fill. As a result, an amalgam is formed and maintained in thermal contact with the apex of the bulb, regardless of lamp orientation.

    摘要翻译: 用于汞齐的螺旋线支撑件的第一部分在将重入腔体附着并密封到灯泡之前牢固地装配到形成在无电极荧光灯的入口腔中的排气管中。 螺旋线支撑件的第二部分延伸到灯泡中并且保持与灯泡的顶点热接触的汞齐。 第二部分具有比第一部分更大的直径,以确保防止螺旋线支撑件移动到排气管中。 在将线支撑件插入排气管之前,螺旋线支撑件的第二部分的端部用能够形成汞合金的合金润湿。 在灯泡最终排空之后,汞被添加到灯泡中,准备为灯泡充满剂量。 结果,不管灯的方向如何,汞齐形成并保持与灯泡的顶点热接触。

    Excitation coil for an electrodeless fluorescent lamp
    7.
    发明授权
    Excitation coil for an electrodeless fluorescent lamp 失效
    无极荧光灯用励磁线圈

    公开(公告)号:US5343126A

    公开(公告)日:1994-08-30

    申请号:US966494

    申请日:1992-10-26

    IPC分类号: H01J65/04 H05B41/24 H01J61/54

    CPC分类号: H01J65/048

    摘要: An excitation coil for an electrodeless fluorescent lamp of the type having a core of insulating material, is made of a metal having a low thermal expansion coefficient which is plated with a high-conductivity metal. An insulating coating is applied over the metal plating. An exemplary coil includes a molybdenum wire, plated with silver, and finally coated with alumina. The result is a thermally stable excitation coil that maintains its shape, even at high operating temperatures, and hence maintains its impedance characteristic over the operating range of the lamp.

    摘要翻译: 用于具有绝缘材料芯的类型的无电极荧光灯的激励线圈由镀有高导电性金属的热膨胀系数低的金属制成。 在金属镀层上施加绝缘涂层。 示例性线圈包括镀有银的钼丝,并最终涂覆有氧化铝。 结果是热稳定的激励线圈,即使在高工作温度下也能保持其形状,因此在灯的工作范围内保持其阻抗特性。

    Magnetically tunable starting circuit for an electrodeless high
intensity discharge lamp
    9.
    发明授权
    Magnetically tunable starting circuit for an electrodeless high intensity discharge lamp 失效
    用于无电极高强度放电灯的可调磁启动电路

    公开(公告)号:US5175476A

    公开(公告)日:1992-12-29

    申请号:US868902

    申请日:1992-04-16

    IPC分类号: H05B41/24 H05B41/28

    摘要: A series resonant starting circuit for providing a starting voltage to a starting probe for initiating an arc discharge in an electrodeless HID lamp includes an electrically variable inductance. The HID lamp is of a type having an excitation coil situated around an arc tube containing an ionizable fill in which the arc discharge is ignited. The electrically variable inductance includes a magnetic core having a main winding wound thereon that is coupled in series with a resonant capacitance. A bias winding is also wound on the magnetic core. Either the bias winding is coupled in series with a bias inductor, or, alternatively, the main and bias windings are configured on the magnetic core as a cross-field inductor. A bias circuit supply provides dc or relatively low-frequency ac current to the bias winding in order to vary the permeability of the magnetic core, and hence the inductance of the main winding, thereby tuning the starting circuit.