| 摘要 |
The kiln has a lighting device mounted on a door. A control unit (23) includes a microcontroller (25) to control operation of the kiln and operation of the lighting device. A main transformer (26) reduces a voltage level of an output signal (Vs) with respect to a voltage level of an alternate input signal (Ve). Diodes (27a, 27b) are respectively installed on networks (24a, 24b) of electroluminescent diodes (12), and transfer electric power of the output signal from the main transformer according to alternations of the alternate input signal. |
