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    • 52. 发明授权
    • Lightweight heat sinks and LED lamps employing same
    • 轻型散热器和采用相同的LED灯
    • US08668356B2
    • 2014-03-11
    • US12979529
    • 2010-12-28
    • Ashfaqul I. ChowdhuryGary R. AllenJoshua I. Rintamaki
    • Ashfaqul I. ChowdhuryGary R. AllenJoshua I. Rintamaki
    • F21V21/00F21V29/00
    • F21V3/00B82Y30/00F21K9/232F21K9/233F21V7/041F21V29/505F21V29/773F21V29/87F21Y2115/10
    • A heat sink includes a thermally conductive layer comprising at least one of fullerenes and nanotubes disposed in a polymeric host. The thermally conductive layer may be disposed on a heat sink body, which may be thermally insulating and/or plastic, and may include surface area enhancing heat radiating structures, such as fins, with the thermally conductive layer being disposed over at least the surface area enhancing heat radiating structures. A light emitting diode (LED)-based lamp embodiment includes the heat sink and an LED module including one or more LED devices secured with and in thermal communication with the heat sink. A method embodiment includes forming the heat sink body and disposing the thermally conductive layer on the heat sink body. The disposing may comprise spray coating. An external energy field may be applied during spray coating to impart a non-random orientation to nanotubes in the polymeric host.
    • 散热器包括导热层,其包含设置在聚合物主体中的富勒烯和纳米管中的至少一种。 导热层可以设置在可以是隔热和/或塑性的散热体上,并且可以包括表面积增强的散热结构,例如翅片,导热层至少设置在表面积 增强散热结构。 基于发光二极管(LED)的灯实施例包括散热器和LED模块,LED模块包括固定在散热片上并与散热器热连通的一个或多个LED器件。 方法实施例包括形成散热体并将导热层设置在散热体上。 处理可以包括喷涂。 可以在喷涂期间施加外部能量场以赋予聚合物主体中的纳米管的非随机取向。
    • 54. 发明申请
    • LIGHTWEIGHT HEAT SINKS AND LED LAMPS EMPLOYING SAME
    • 轻型散热器和使用相同的LED灯
    • US20120080699A1
    • 2012-04-05
    • US12979573
    • 2010-12-28
    • Ashfaqul I. ChowdhuryGary R. Allen
    • Ashfaqul I. ChowdhuryGary R. Allen
    • H01L33/64F28F7/00
    • F21V7/22F21K9/232F21K9/64F21V3/062F21V3/12F21V29/506F21V29/773F21V29/87F21Y2115/10
    • A heat sink comprises a heat sink body, a reflective layer disposed over the heat sink body that has reflectivity greater than 90% for light in the visible spectrum, and a light transmissive protective layer disposed over the reflective layer that is light transmissive for light in the visible spectrum. The heat sink body may comprise a structural heat sink body and a thermally conductive layer disposed over the structural heat sink body where the thermally conductive layer has higher thermal conductivity than the structural heat sink body and the reflective layer is disposed over the thermally conductive layer. A light emitting diode (LED)-based lamp comprises the aforesaid heat sink and an LED module secured with and in thermal communication with the heat sink. The LED-based lamp may have an A-line bulb configuration, or may comprise a directional lamp in which the heat sink defines a hollow light-collecting reflector.
    • 散热器包括散热体,设置在散热体上方的反射层,其对可见光谱中的光具有大于90%的反射率;以及透光保护层,设置在反射层上,该透光保护层对于光的透光性 可见光谱。 散热体可以包括结构散热体和布置在结构散热体上的导热层,其中导热层具有比结构散热体更高的热导率,并且反射层设置在导热层之上。 基于发光二极管(LED)的灯包括上述散热器和与散热器固定并与散热器热连通的LED模块。 基于LED的灯可以具有A线灯泡构造,或者可以包括定向灯,其中散热器限定中空聚光反射器。
    • 59. 发明授权
    • High pressure lamp with lamp flicker suppression and lamp voltage control
    • 高压灯,带灯闪烁抑制和灯电压控制
    • US07443103B2
    • 2008-10-28
    • US11166315
    • 2005-06-24
    • Jianwu LiAlan G. ChalmersViktor K. VargaTimothy B. GurinGary R. AllenAnjali KotkundeJames C. McNamara
    • Jianwu LiAlan G. ChalmersViktor K. VargaTimothy B. GurinGary R. AllenAnjali KotkundeJames C. McNamara
    • H05B41/36
    • H05B41/3928Y02B20/202Y10S315/07
    • A method and system to supply current to a high pressure lamp is provided, the method and system comprising an alternating lamp current waveform with a half cycle mean amplitude I1 and a half cycle time duration T, a current pulse waveform including at least one current pulse with a half cycle mean amplitude I2 and at least one current pulse occurring after the trailing edge of a half cycle of the alternating lamp current, the pulse having a half cycle duration of Tp. These waveforms are combined to generate a current waveform including a current pulse waveform, the current pulse waveform starting after a time delay Td from the trailing edge of a half cycle of the alternating lamp current waveform, the time duration Tp of the at least one current pulse lasting less than the remaining time before the leading edge of the second half cycle of the alternating lamp current waveform. The combined current waveform supplies current to a high pressure lamp and produces a cone shaped tip protrusion which reduces lamp flicker.
    • 提供了一种向高压灯提供电流的方法和系统,该方法和系统包括具有半周期平均振幅I 1和半周期持续时间T的交替灯电流波形,包括至少一个电流的电流脉冲波形 脉冲具有半周期平均幅度I 2和在交流灯电流的半周期的后沿之后出现的至少一个电流脉冲,脉冲具有Tp的半周期持续时间。 这些波形被组合以产生包括电流脉冲波形的电流波形,从交流灯电流波形的半周期的后沿开始的时间延迟Td之后的当前脉冲波形,至少一个电流的持续时间Tp 脉冲持续时间小于交流灯电流波形的第二个半周期的前沿之前的剩余时间。 组合电流波形将电流提供给高压灯,并产生锥形尖端突起,减少灯闪烁。
    • 60. 发明授权
    • Fluorescent lamp with conductive coating
    • 荧光灯带导电涂层
    • US07378797B2
    • 2008-05-27
    • US11303149
    • 2005-12-16
    • Evan KarrsWilliam W. BeersMatthew PierceGary R. Allen
    • Evan KarrsWilliam W. BeersMatthew PierceGary R. Allen
    • H01J11/00
    • H01J61/35H01J9/20H01J61/547H01J61/72
    • Fluorescent lamps that comprise a glass envelope with an exterior surface and first and second electrodes located within the glass envelope include a transparent electrically conductive material affixed to the exterior surface of the glass envelope. The transparent electrically conductive material extends between the vicinity of the first electrode and the vicinity of the second electrode, thereby providing a path for an electric current to pass between the first and second electrodes and reduce the open circuit voltage required to start the fluorescent lamp. The transparent electrically conductive material affixed to the exterior surface of the glass envelope can comprise one or more stripes of the material so that less than the total exterior surface area of the glass envelope is covered by the transparent electrically conductive material.
    • 包括具有外表面的玻璃外壳和位于玻璃外壳内的第一和第二电极的荧光灯包括固定在玻璃外壳的外表面上的透明导电材料。 透明导电材料在第一电极附近和第二电极附近之间延伸,由此提供电流在第一和第二电极之间通过的路径,并降低启动荧光灯所需的开路电压。 固定在玻璃外壳表面上的透明导电材料可以包括该材料的一个或多个条纹,使得小于玻璃外壳的总外表面积被透明导电材料覆盖。