Method of operating a high-pressure gaseous discharge lamp with improved efficiency
    1.
    发明授权
    Method of operating a high-pressure gaseous discharge lamp with improved efficiency 失效
    具有改进效率的高压气体放电灯操作方法

    公开(公告)号:US3624447A

    公开(公告)日:1971-11-30

    申请号:US3624447D

    申请日:1969-06-25

    CPC classification number: H05B41/38

    Abstract: The efficiency of a conventional high-pressure gaseous discharge lamp, such as a 400 watt mercury-vapor lamp, is increased by pulse-operating the lamp at power loadings which are higher than the average rated power input of the lamp. The highpower pulses are of such magnitude and duration that the resultant average power input does not exceed the power loading for which the lamp is designed and rated. This is achieved by generating a series of high-voltage pulses with a suitable circuit and applying the pulses to the lamp electrodes. Optimum results in the case of conventional high-pressure mercury-vapor discharge lamps having ratings of from 100 to 1,000 watts are obtained with pulses that have a magnitude of from 60 to 600 volts, are 0.2 to 5 milliseconds in duration and have a repetition rate of from 50 to 500 pulses per second. In order to prevent arc extinction between pulses, the latter are preferably superimposed on a ''''keep-alive'''' DC potential that constitutes from three to 20 percent of the rated average power input of the lamp.

    Single-ended electric discharge lamp having tubular envelope with partition means that provides a helical arc path
    5.
    发明授权
    Single-ended electric discharge lamp having tubular envelope with partition means that provides a helical arc path 失效
    单端放电灯,其具有带有分隔装置的管状外壳,其具有螺旋形弧形路径

    公开(公告)号:US3903447A

    公开(公告)日:1975-09-02

    申请号:US33797073

    申请日:1973-03-05

    CPC classification number: H01J61/103

    Abstract: The arc length, light output and efficiency of an elongated discharge lamp, such as a fluorescent lamp, are increased by providing a planar partition within the envelope that extends laterally to the envelope walls and defines a single helical discharge channel that spirals around the envelope axis. The helical partition, electrodes and base contacts are structurally arranged to provide a compact single-ended (or double-ended) lamp of high luminous intensity. Auxiliary electrodes and a starting resistor are included as integral components in one embodiment to provide a self-starting low-pressure discharge lamp of the single-ended variety. In another embodiment the envelope has an axially-extending cavity that is open to the atmosphere and accommodates a rod type laser which is thus tightly coupled optically with the surrounding helical arc and efficiently ''''pumped'''' by the lamp. The lamp, in this case, can comprise a ''''flash'''' lamp that is pulsed rather than operated continuously.

    Abstract translation: 通过在外壳内设置一个平面的隔板,横向延伸到封套壁,并且限定了围绕封套轴线螺旋的单个螺旋排出通道,增加了诸如荧光灯的细长放电灯的弧长,光输出和效率 。 螺旋分隔件,电极和基座触点在结构上布置成提供高发光强度的紧凑型单端(或双端)灯。 作为一个实施例中的辅助电极和起动电阻器作为整体部件被提供,以提供单端品种的自启动低压放电灯。 在另一个实施例中,外壳具有向大气开放的轴向延伸的空腔,并容纳棒状激光器,因此,激光器与周围的螺旋弧光学地紧密耦合并由灯有效地“泵送”。 在这种情况下,灯可以包括脉冲而不是连续操作的“闪光灯”。

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