Patent ID: 7205723

Claim:
An electrodeless discharge lamp comprising: a bulb filled inside with a discharge gas and having a cavity; a magnetic core disposed in the cavity; an induction coil formed by winding a winding wire with an electrically insulating coating around the magnetic core and disposed in the cavity; and a fixation member for fixing the magnetic core, wherein the fixation member has an elongation portion extending in a direction along an axial line of the magnetic core, a holding portion for holding the magnetic core positioned closer to the magnetic core than the elongation portion, and a inflecting portion for inflecting the winding wire positioned away from a boundary between the holding portion and the magnetic core toward the elongation portion by a distance between once and twice of a diameter of the winding wire, and wherein the winding wire of the induction coil has a winding portion wound around the magnetic core via the coating, and straight portions extending toward the magnetic core along the elongation portion.