| 摘要 |
An electrodeless lighting system is provided to suppress a wavelength fluctuation of the light reflected by a dielectric mirror by making a height of a reflective surface of the dielectric mirror different. An electrodeless lighting system includes a magnetron generating electromagnetic waves, an electrodeless lighting bulb(5) filled with a phosphor which is exited by the electromagnetic waves to emit visible rays, a resonator(6) accommodating the electrodeless lighting bulb and shielding the electromagnetic waves and transmitting light, a reflective shade(7) reflecting the light generated from the electrodeless lighting bulb, and a dielectric mirror(10) mounted in the resonator for transmitting the electromagnetic waves and reflecting the light. The dielectric mirror has a reflective coating layer(11) so that a height of a reflective surface is different.
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