AUXILIARY LIGHT SOURCE DEVICE, AND ELECTRODELESS DISCHARGE LAMP, ELECTRODELESS DISCHARGE LAMP LIGHTING DEVICE, AND ILLUMINATION DEVICE INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an auxiliary light source device capable of increasing light bundle in the lighting of an electrodeless discharge lamp, and provide an electrodeless discharge lamp, an electrodeless discharge lamp lighting device, and an illumination device that include the auxiliary light source device.SOLUTION: An auxiliary light source device 5 comprises a receiving coil 51 fed, by electromagnetic induction, from an induction coil 10 placed close to a bulb 20 of an electrodeless discharge lamp 2; an light-emitting diode 50 serving as auxiliary light source that lights due to electric power source induced by the receiving coil 51 at least during lighting of the electrodeless discharge lamp 2. The light from the light-emitting diode 50 allows an increase of light bundle.