| 摘要 |
PURPOSE:To surely detect lighting light by providing a lighting light input means which is introduced with the light released from the luminous body of an operation state indicator lamp and delivers the light to an optical cable within the display state indicator lamp. CONSTITUTION:Light is released from the luminous body 3 when a DC voltage of an anode is impressed to an anode electrode 15 and the DC voltage of a negative electrode to a cathode electrode 16. The light emitted from this lumi nous body 3 arrives at a signal connector 13 for external connection through an optical waveguide 12. The connector 13 for external connection is an inter face point with a signal processor 6 and is connected by the optical cable 4 to the signal processor 6. The lighting light of the operation state indicator lamp 2 is, therefore, received by the optical waveguide 12 when this lamp is lighted. The lighting signal transmitted to the connector 13 for external connec tion is then transmitted up to the signal processor 6 by the optical cable 4. Since the lighting light input means 5 is provided on a base 14 side, the visibility as the indicator lamp of the LED is not impaired. |
