| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a loop-shaped electrodeless discharge lamp device that is superior in light emission efficiency, stability, and size/weight reduction. <P>SOLUTION: This is provided with a loop shaped bulb 1 which is a tube body of a translucent material and in which a discharge gas is sealed, a core 2 comprising a magnetic body to surround one part of the bulb 1, an induction coil wound around at least at one part of the core 2, and a high-frequency power supply (lighting circuit 4) to excite the discharge gas to emit light by electromagnetic induction, by making a high frequency current flow in the coil 3, and a heat-dissipating material 6 is made to divide the core 2 and to be interposed between the core 2 and the core 2. <P>COPYRIGHT: (C)2007,JPO&INPIT |
