Electrodeless high intensity discharge lamp with field suppression probes

    公开(公告)号:US09805925B1

    公开(公告)日:2017-10-31

    申请号:US15270252

    申请日:2016-09-20

    IPC分类号: H01J65/04 H01J61/30 H05B41/24

    摘要: In electrodeless HID lamps the radio frequency (RF) source is separated from a lamp housing in which vessel containing plasma arc is mounted. This lamp housing is usually designed to maximize the amount of RF energy incident on the plasma arc. The plasma arc, however, cannot convert the entire amount of incident RF energy into light and a portion instead is released as propagating radiation or remains localized RF electromagnetic fields in the vicinity of lamp. In this invention, we introduce field suppression probes: Small, configurable structures that are made of conductive materials that mount directly to the lamp housing or alternately the lamp fixture that is able to suppress unused RF energy that is emanated from the lamp housing or plasma. These probes, when configured with the lamp, can substantially suppress the unused RF energy and prevent EMI emissions and reduce RF feedback that can adversely affect the lamp.

    Electrodeless high intensity discharge lamp with wave-launcher

    公开(公告)号:US09875887B1

    公开(公告)日:2018-01-23

    申请号:US15473257

    申请日:2017-03-29

    摘要: Electrodeless high intensity discharge (HID) lamps have the promise of higher reliability and higher efficiency than traditional electroded high intensity discharge lamps. However, most electrodeless HIDs operate in the frequency range of around 400 MHz or higher resulting in expensive, inefficient RF drivers that reduce the overall efficacy of the lamp. Operating the lamp at lower frequencies results in substantial increase in the physical dimensions of the resonators used in traditional electrodeless HIDs. In this invention a novel wave-launcher technology is used allow the lamp housing's operating frequency to be independent of the physical dimensions of the lamp housing. This provides an avenue to increase the conversion efficiency of the RF driver and the efficacy of the lamp system.

    Electrodeless high intensity discharge lamp with wave-launcher

    公开(公告)号:US09640380B1

    公开(公告)日:2017-05-02

    申请号:US15270238

    申请日:2016-09-20

    摘要: Electrodeless high intensity discharge (HID) lamps have the promise of higher reliability and higher efficiency than traditional electroded high intensity discharge lamps. However, most electrodeless HIDs operate in the frequency range of around 400 MHz or higher resulting in expensive, inefficient RF drivers that reduce the overall efficacy of the lamp. Operating the lamp at lower frequencies results in substantial increase in the physical dimensions of the resonators used in traditional electrodeless HIDs. In this invention a novel wave-launcher technology is used allow the lamp housing's operating frequency to be independent of the physical dimensions of the lamp housing. This provides an avenue to increase the conversion efficiency of the RF driver and the efficacy of the lamp system.