| 摘要 |
An electrodeless fluorescent light source that includes a non-conducting light transmissive hermetically sealed envelope containing an ionizable gas which is electromagnetically coupled to an ionizing radio frequency (r.f.) energy source is described. The r.f. energy source is an induction coil wound in the form of a toroidal helix to minimize microwave radiation leakage, and is placed within the envelope and in direct contact with the gas in order to maximize energy coupling to the gas.
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