| 摘要 |
PURPOSE: To prevent wiring structure from being complicated and to prevent the cost increase due to the increase in the number of parts. CONSTITUTION: Even when plural fluorescent lamps 2A,... are turned on, two filaments 2Ab and 2Ba is heated by one transformer for heating 7B and two fluorescent lamps 2A,... are turned on by one transformer for turning-on 6. Therefore, the number of transformers for heating and turning-on 6, 7,... is more reduced than the conventional device. As a result, the structure of the illumination device 15 is made simple and inexpensive. |
