Rare gas discharge fluorescent lamp device
    1.
    发明授权
    Rare gas discharge fluorescent lamp device 失效
    稀有气体放电荧光灯装置

    公开(公告)号:US5072155A

    公开(公告)日:1991-12-10

    申请号:US525962

    申请日:1990-05-11

    摘要: The invention provides a rare gas discharge fluorescent lamp device which is long in life and high in brightness and efficiency. The lamp device comprises a rare gas discharge fluorescent lamp including a glass bulb having xenon, argon or krypton gas enclosed therein, a fluorescent layer formed on an inner face of the bulb, and a pair of electrodes located at the opposite ends of the bulb. A pulse-like voltage wherein the ratio of an energization period with respect to one cycle is higher than 5% but lower than 70% (xenon or krypton gas) or 80% (argon gas) and the energization period is shorter than 150 .mu.sec is applied between the electrodes of the lamp. Such pulse-like voltage is produced from a circuit including a dc power source, a pulse signal source, and a switching element for controlling application of a voltage of the dc power source or such voltage boosted by a boosting transformer or a resonance circuit. Where the negative electrode includes a filament coil, a rectifying element is connected between the electrodes of the lamp for allowing pre-heating of the filament coil.

    Discharge lamp with external electrodes
    2.
    发明授权
    Discharge lamp with external electrodes 失效
    放电灯带外部电极

    公开(公告)号:US5013966A

    公开(公告)日:1991-05-07

    申请号:US311350

    申请日:1989-02-15

    IPC分类号: H01J65/04

    CPC分类号: H01J65/046

    摘要: A discharge lamp comprises a substantially straight glass bulb having a discharge gas charged therein and an electrode provided at each longitudinal end portion of the bulb on the outer surface thereof. A high frequency voltage is applied across the electrodes of the discharge lamp. Each end portion has an outer surface area per unit length of the bulb larger than that at light emitting portion of the bulb. The outer surface area may be uneven or in the shape of ridges and furrows at the end portions to create a large surface area, the electrodes being configured to the ridges and furrows. The end portions may have a larger diameter than that of the light emitting portion of the bulb so that they have a larger surface area contacting with the bulb. Each of the electrodes may have a narrow belt-shaped elongate portion on the outer surface of the bulb extending longitudinally within toward the middle portion, thereby allowing use of a lower discharge voltage. The fluophor may be applied to the inner surface area except the surface opposite the electrodes.

    Low-pressure mercury vapor discharge lamp
    7.
    发明授权
    Low-pressure mercury vapor discharge lamp 失效
    低压汞蒸气放电灯

    公开(公告)号:US4583026A

    公开(公告)日:1986-04-15

    申请号:US629038

    申请日:1984-07-09

    摘要: A low-pressure mercury vapor discharge lamp comprises a tubular bulb having an inside diameter of from 22 mm to 35 mm, an electrode-to-electrode distance of from 400 mm to 1,200 mm, and an inner surface coated with a phosphor. A rare gas including Kr and a mercury vapor source are sealed in the bulb, which is energized by an igniting device having a high-frequency power supply connected to a DC power supply for generating a substantially sinusoidal high-frequency output voltage, and a quiescent period generator connected to the high-frequency power supply and including a switch 17 turned on and off at least once during each half cycle to provide a quiescent period and thereby produce a substantially square wave high-frequency output voltage having rise and fall times of 2 .mu.s or less.

    摘要翻译: 低压汞蒸汽放电灯包括内径为22mm至35mm的管状灯泡,电极与电极的距离为400mm至1,200mm,以及涂覆有荧光体的内表面。 包括Kr和汞蒸汽源的稀有气体被密封在灯泡中,该灯泡由具有连接到直流电源的高频电源的点火装置激励,用于产生基本上正弦的高频输出电压,以及静态 连接到高频电源并且包括开关17在每个半周期期间至少打开一次以提供静止周期,从而产生具有上升和下降时间2的基本上方波的高频输出电压 亩或以下。

    Rare gas discharge fluorescent lamp device
    9.
    发明授权
    Rare gas discharge fluorescent lamp device 失效
    稀有气体放电荧光灯装置

    公开(公告)号:US5723952A

    公开(公告)日:1998-03-03

    申请号:US925497

    申请日:1992-08-05

    摘要: The present invention provides a rare gas discharge fluorescent lamp device which is long in life and high in brightness and efficiency. The lamp device basically comprises a rare gas discharge fluorescent lamp wherein rare gas is enclosed in the inside of a glass bulb which has a fluorescent layer formed on an inner face thereof and has a pair of electrodes at the opposite ends thereof. In one embodiment, it further comprises a dc power source and a resonance circuit for generating pulse-like voltage across the pair of electrodes having the time rate of energization time to a period higher than 5% but lower than 70% and the energization time within a period shorter than 150 .mu.sec, and in another embodiment, it further comprises a high-frequency ac power source and an electric voltage generating means; to generate pulse-like voltage across a pair of electrodes of the lamp wherein an energization time of the pulse-like voltage is equal to a half period of a wave form applied from ac power source and the idle time integral-number times as long as the half period of the wave form applied from the ac power source.

    摘要翻译: 本发明提供一种寿命长,亮度高,效率高的稀有气体放电荧光灯装置。 灯装置基本上包括稀有气体放电荧光灯,其中稀有气体封闭在玻璃灯泡的内部,玻璃灯泡的内表面上形成有荧光层,并在其相对端具有一对电极。 在一个实施例中,它还包括一个直流电源和一个谐振电路,用于产生一对电极的脉冲状电压,该电极具有通电时间的时间率,高于5%但是低于70%的周期内的通电时间 时间短于150μsec,在另一实施例中,还包括高频交流电源和电压发生装置; 以在灯的一对电极之间产生脉冲状电压,其中脉冲状电压的通电时间等于从交流电源施加的波形的半周期以及空闲时间积分时间,只要 从交流电源施加的波形的半周期。