| 摘要 |
PURPOSE:To speedily and easily deal with the change of an applied machine type without requiring the exchange work of a lighting type switch and the stock of respective light emitting colors. CONSTITUTION:Concerning a control panel 1 arranging plural lighting type switches 11 incorporating light emitting diodes DR and DG on a panel surface 3 at a main body 2 of the control panel in the prescribed arrangement relation, each lighting type switch 11 incorporates the light emitting diodes DR and DG in plural colors and is provided with a constitutive circuit serially connecting a parallel circuit, which parallelly connects the plural sets of serial circuits composed of switches S1-S4 for switching light emitting colors and resistors R1-R4, to the light emitting diodes DR and DG and parallelly connecting that parallel circuit and the serial circuit of the light emitting diodes DR and DG. Then, any arbitrary light emitting color is generated by selectively emitting the light emitting diodes DR and DG in the respective colors by selectively turning on the switches S1-S4. |
