| 摘要 |
<p>The method involves surrounding the inductor with at least one shielding conductive loop having an inductance, terminating the at least one shielding loop in a capacitive termination to resonate with the at least one shielding loop, and providing a resonant frequency of the capacitive termination in series with the inductance of the shielding loop below the predetermined driving frequency of the primary coil. The method, where the inductive discharge is maintained in an electrodeless low pressure discharge lamp, further involves providing a sealed transparent lamp envelope filled with the gaseous medium, the gaseous medium including a rare gas and a vaporised metal, the inductor being received in the lamp envelope. A layer of a fluorescent material is disposed on an internal surface of the lamp envelope. A device is provided for applying a high-frequency power to the primary coil to produce an electromagnetic field within the lamp envelope for maintaining the inductive discharge in the gaseous medium, the fluorescent material being responsive to the discharge in the gaseous medium for emitting light.</p> |
