| 摘要 |
PROBLEM TO BE SOLVED: To secure the moisture resistance of electric parts having low moisture resistance by covering at least the electric parts having low moisture resistance in a lighting circuit with a cover body having moisture resistance. SOLUTION: One circuit board 13 of an inverter circuit 12 serving as a light circuit is inserted and held on the partition plate 5 of a fluorescent lamp device 1, and high-frequency lighting electric parts 14 are mounted on the circuit board 13. The electric parts 14 having low moisture resistance such as a resonant inductor 15, smoothing electrolytic capacitor 16, and a transistor 17 among multiple electric parts 14 mounted on the circuit board 13 are arranged near to each other. Only the periphery of the electric parts 14 having low moisture resistance is covered with a cover body 18 having moisture resistance such as a silicone resin, and the moisture resistance of the electric parts having low moisture resistance can be secured. |
