| 摘要 |
PROBLEM TO BE SOLVED: To prevent a failure in the circuit caused by heat when lighting arc tubes, in the fluorescent lamp device provided with arc tube fixing parts. SOLUTION: An arc tube fixing part 10 is composed of end fixing parts 12 and a body part 11. The end fixing parts 12 have thermal conductivity lower than that of the body 11, and they can be easily put on and taken off the body 11. Gaps 13 as heat insulating layer are formed between the body 11 and the end fixing parts 12. Then, the end fixing parts 12 are mounted with arc tubes having electrodes at the ends. Thus, the end fixing parts 12 prevent heat conduction from the electrodes to the circuit. |
