Non-electrode fluorescent lamp
    1.
    发明专利
    Non-electrode fluorescent lamp 有权
    非电极荧光灯

    公开(公告)号:JP2005150108A

    公开(公告)日:2005-06-09

    申请号:JP2004322651

    申请日:2004-11-05

    CPC classification number: H01J61/56 H01J61/28 H01J65/048

    Abstract: PROBLEM TO BE SOLVED: To provide a non-electrode fluorescent lamp improved in amalgam temperature control and having good RF shield.
    SOLUTION: This non-electrode fluorescent lamp has a reentrant cavity in a burner, an amalgam container communicating with the burner, a housing cap for connecting the burner to a stabilizer housing, and an EMI cup formed as one part of the stabilizer housing. The EMI cup has a bottom portion and a cap with an aperture, and the upper portion is closed in the aperture. The amalgam container is extendedly located in the stabilizer housing through the aperture.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种改进的汞齐温度控制和良好RF屏蔽的非电极荧光灯。 解决方案:这种非电极荧光灯在燃烧器中具有凹入腔,与燃烧器连通的汞齐容器,用于将燃烧器连接到稳定器壳体的壳体盖和形成为稳定器的一部分的EMI杯 住房。 EMI杯具有底部和带孔的盖,并且上部在孔中封闭。 汞齐容器通过孔径延伸到稳定器壳体中。 版权所有(C)2005,JPO&NCIPI

    ELECTRODELESS LAMP WITH COMPENSATING LOOP FOR SUPPRESSING MAGNETIC DISTURBANCE

    公开(公告)号:JPH1186799A

    公开(公告)日:1999-03-30

    申请号:JP19751198

    申请日:1998-07-13

    Abstract: PROBLEM TO BE SOLVED: To generate magnetic field practically canceling the magnetic field generated by an electric discharge by feeding an RF energy to an electrodeless lamp from an RF power supply and a compensating loop network, conducting an electric discharge in a lamp envelope, and feeding RF energy to a compensating loop. SOLUTION: RF energy is coupled dialectically with a low-pressure discharge in a lamp envelope 12 by a drive coil 22. An electrodeless lamp 10 serves as a secondary winding of the drive coil 22. The RF current flowing in an input winding 30 generates magnetic flux which changes in time, and the voltage for maintaining the discharge is induced in the longitudinal direction of the electrodeless lamp 10 by the magnetic flux. Ultraviolet rays are emitted from the discharge in the electrodeless lamp 10, and the visible light emission is excited from a phosphorescence coating on the inner face of the lamp envelope 12. A compensating loop 40 is driven by an RF power supply via a compensating loop network 24, and the loop current fed from the RF power supply, i.e., a counter current, matches with the discharge current of the electrodeless lamp 10.

    POWER SPLITTER CIRCUIT FOR ELECTRODELESS LAMP

    公开(公告)号:CA2742519A1

    公开(公告)日:2012-03-29

    申请号:CA2742519

    申请日:2011-06-10

    Abstract: A lamp assembly adapted to operate as one of a total number of lamp assemblies that are connected together in series and connected to a ballast. The lamp assembly comprises an electrodeless, closed-loop, tubular lamp envelope enclosing mercury vapor and a buffer gas, and a transformer core disposed around a portion of the lamp envelope. An input winding is disposed on the transformer core so that it has a particular number of turns, N input. An auxiliary winding is disposed on the transformer core so that it has a particular number of turns, N auxiliary. The auxiliary winding is adapted to connect to the ballast and to couple with the input winding. The ratio of the particular number of turns N input to the particular number of turns N auxiliary is substantially proportional to the total number of lamp assemblies that are adapted to operate in series together.

    HIGH INTENSITY ELECTRODELESS LOW PRESSURE LIGHT SOURCE

    公开(公告)号:CA2185267C

    公开(公告)日:2008-04-22

    申请号:CA2185267

    申请日:1996-09-11

    Abstract: An electric lamp assembly includes an electrodeless lamp having a closed-loop, tubular envelope enclosing mercury vapor and a buffer gas at a pressure less than about 0.5 torr, a transformer core disposed around the lamp envelope, an input winding disposed on the transformer core and a radio frequency power source coupled to the input winding. The radio frequency source supplies sufficient radio frequency energy to the mercury vapor and the buffer gas to produce in the lamp envelope a discharge having a discharge current equal to or greater than about 2 amperes. The electrodeless lamp preferably includes a phosphor on an inside surface of the lamp envelope for emitting radiation in a predetermined wavelength range in response to ultraviolet radiation emitted by the discharge.

    POWER SPLITTER CIRCUIT FOR ELECTRODELESS LAMP

    公开(公告)号:CA2742519C

    公开(公告)日:2014-05-27

    申请号:CA2742519

    申请日:2011-06-10

    Abstract: A lamp assembly adapted to operate as one of a total number of lamp assemblies that are connected together in series and connected to a ballast. The lamp assembly comprises an electrodeless, closed-loop, tubular lamp envelope enclosing mercury vapor and a buffer gas, and a transformer core disposed around a portion of the lamp envelope. An input winding is disposed on the transformer core so that it has a particular number of turns, N input. An auxiliary winding is disposed on the transformer core so that it has a particular number of turns, N auxiliary. The auxiliary winding is adapted to connect to the ballast and to couple with the input winding. The ratio of the particular number of turns N input to the particular number of turns N auxiliary is substantially proportional to the total number of lamp assemblies that are adapted to operate in series together.

    ELECTRODELESS LAMP HAVING COMPENSATION LOOP FOR SUPPRESSION OF MAGNETIC INTERFERENCE

    公开(公告)号:CA2241499A1

    公开(公告)日:1999-01-11

    申请号:CA2241499

    申请日:1998-06-22

    Abstract: An electric lamp assembly includes an electrodeless lamp having an electrodeless lamp envelope enclosing a fill material for supporting a low pressure discharge, a driving inductor including a magnetic core disposed in proximity to the lamp envelope and an input winding disposed on the magnetic core, a compensation loop disposed in proximity to the lamp envelope, a radio frequency power source and a compensation loop network. The compensation loop network has an input coupled to the radio frequency power source and outputs coupled to the input winding and to the compensation loop. The radio frequency power source and the compensation loop network supply radio frequency energy to the electrodeless lamp to produce a discharge in the lamp envelope and supply radio frequency energy to the compensation loop to generate a magnetic field that substantially counteracts a magnetic field produced by the discharge. In one embodiment, the lamp envelope is a closed-loop, tubular lamp envelope, and the magnetic core is disposed around the lamp envelope. In another embodiment, the lamp envelope includes a reentrant cavity, and the magnetic core is disposed in the reentrant cavity.

    Electrodeless discharge lamp having self-resonant filter choke

    公开(公告)号:GB2356081A

    公开(公告)日:2001-05-09

    申请号:GB0022227

    申请日:2000-09-11

    Abstract: Low pressure electrodeless discharge lamp having Kr or Ar at pressure between 0.2-0.6 Torr. The lamp may have one or more ferrite toroidal cores mounted externally of the discharge and an RF coupler having a coupling efficiency of greater than 97%. Starting electrodes may be located beneath the toroidal core. The bulb is shaped to hide a significant part of the ferrite core from view and is compact. There is a small gap between the ferrite core and the glass bulb which serves to thermally insulate the ferrite core. The core is composed of two or more pieces of ferrite material. Electromagnetic interference (EMI) is minimised by installing a self resonant choke into the wires that carry the AC line current to the power supply electronics of the lamp. The choke is composed of two windings wound about a single ferrite core assembly.

    POWER SPLITTER CIRCUIT FOR ELECTRODELESS LAMP

    公开(公告)号:CA2828149A1

    公开(公告)日:2012-03-29

    申请号:CA2828149

    申请日:2011-06-10

    Abstract: A lamp assembly adapted to operate as one of a total number of lamp assemblies that are connected together in series and connected to a ballast. The lamp assembly comprises an electrodeless, closed-loop, tubular lamp envelope enclosing mercury vapor and a buffer gas, and a transformer core disposed around a portion of the lamp envelope. An input winding is disposed on the transformer core so that it has a particular number of turns, N input. An auxiliary winding is disposed on the transformer core so that it has a particular number of turns, N auxiliary. The auxiliary winding is adapted to connect to the ballast and to couple with the input winding. The ratio of the particular number of turns N input to the particular number of turns N auxiiiary is substantially proportional to the total number of lamp assemblies that are adapted to operate in series together.

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