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公开(公告)号：US3995195A
公开(公告)日：1976-11-30
申请号：US632416
申请日：1975-11-17
CPC分类号： H01J65/044 , H01J65/046
摘要： In a light source in which an electrodeless lamp is excited by high frequency power coupled into a lamp termination fixture having an inner and outer conductor, the fixture has a dynamically variable characteristic impedance, thereby facilitating dynamic matching of the variable impedance of the lamp during the lamp-off to lamp-run conditions to the output impedance of the power source. This feature is possible because the position of the inner conductor with respect to the outer conductor is controlled as a function of the heat generated within the fixture. The inner conductor is made of a conductive material having a non-uniform coefficient of thermal expansion. When the fixture is cold, the lamp and the lamp-coupled end of the inner conductor are substantially concentric to the outer conductor thereby creating a high characteristic impedance to match the high starting lamp impedance to the source impedance. When the lamp is running, the inner conductor and lamp become eccentric to the outer conductor due to the heat generated in the fixture, thereby reducing the fixture characteristic impedance to match the lower lamp impedance to the output impedance of the source.
摘要翻译： 在其中无电极灯被耦合到具有内导体和外导体的灯端接固定器的高频功率激发的光源中，该固定装置具有动态可变的特性阻抗，从而有助于灯的可变阻抗的动态匹配 灯灭灯灯运行条件到电源的输出阻抗。 该特征是可能的，因为内部导体相对于外部导体的位置被控制为在夹具内产生的热的函数。 内导体由具有不均匀热膨胀系数的导电材料制成。 当灯具冷却时，内部导体的灯和灯联接端基本上与外部导体同心，从而产生高的特性阻抗，以使高起动灯阻抗与源阻抗相匹配。 当灯运行时，由于灯具中产生的热量，内部导体和灯变得偏心于外部导体，从而降低灯具特性阻抗，使灯泡的阻抗与源的输出阻抗相匹配。
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2.发明授权Adjustable length center conductor for termination fixtures for electrodeless lamps 失效可调节长度中心导体，用于无电缆的终端装置
公开(公告)号：US4001631A
公开(公告)日：1977-01-04
申请号：US632328
申请日：1975-11-17
申请人： William McNeill , Joseph Lech , Paul Haugsjaa , Robert Regan
发明人： William McNeill , Joseph Lech , Paul Haugsjaa , Robert Regan
CPC分类号： H01J65/044 , H01J65/046
摘要： A light source includes a source of high frequency power, an electrodelsss lamp and a termination fixture for coupling power to the lamp, the fixture having an outer conductor and an inner conductor whose length is adjustable for providing dynamic matching of the impedance of the lamp during the operating mode to the output impedance of the source. Variations in the power level from the source, such as is desirable in providing lamp brightness selectivity, vary both the real and imaginary components of the lamp impedance, and corresponding adjustments of the inner conductor length provide a tuning technique to compensate for these variations.
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公开(公告)号：US20140271286A1
公开(公告)日：2014-09-18
申请号：US14146144
申请日：2014-01-02
申请人： William McNeill
发明人： William McNeill
CPC分类号： G10K15/04 , F04D19/002 , F04D29/263 , F04D29/662
摘要： A noise producing fan with low air movement or variable air movement is provided. The device comprises a conventional mechanical fan that is adapted to provide a soothing and steady volume of ambient noise for a user to block out background noise and sleep comfortably. The mechanical fan includes several embodiments, including different fan blade arrangements, means of interchanging fan blades on the mechanical fan hub, different fan shrouds that allow for access to the fan hub, and finally an imbalanced fan hub that creates an oscillatory motion to increase noise production. The fan blades for low air movement and efficient noise generation are flat or perforated, and secure to the fan hub as it oscillates and rotates within the mechanical fan housing.
摘要翻译： 提供低空气运动或可变空气运动的产生噪音的风扇。 该装置包括常规的机械风扇，其适于为使用者提供舒缓和稳定的环境噪声体积以阻止背景噪声和舒适地睡眠。 机械风扇包括几个实施例，包括不同的风扇叶片布置，在机械风扇轮毂上互换风扇叶片的装置，允许进入风扇毂的不同风扇罩，以及最后产生振荡运动以增加噪声的不平衡风扇毂 生产。 用于低空气运动和高效噪声产生的风扇叶片是扁平的或穿孔的，并且当其在机械风扇壳体内振荡和旋转时固定到风扇毂。
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