BULB TYPE ELECTRODELESS FLUORESCENT LAMP AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a bulb type electrodeless fluorescent lamp having an appearance like an incandescent lamp. SOLUTION: The bulb type electrodeless fluorescent lamp 200 comprises a luminescent tube 100 having luminescent gas sealed therein; an induction coil 30 inserted into a recessed part 24 of the luminescent tube 100; a lighting circuit 40; a case 50 storing the lighting circuit 40; and a base 60. The luminescent tube 100 further comprises an approximately spherical outer tube 10 and an inner tube 20, wherein a neck recessed part 14 and a neck projected part 16 are formed at a neck part 13 of the outer tube 10 positioned around a sealed part 12 formed by connecting the outer tube 10 to the inner tube 20 in that order from the sealed part 12 side. COPYRIGHT: (C)2006,JPO&NCIPI