| 摘要 |
A luminescent planar sheet is constructed to provide illuminated alphanumeric characters particularly suitable for mounting upon the planar surfaces of a vehicle. Preferably the luminescent planar sheet can produce visible light, infrared light, or both. A switching system is connected to the luminescent planar panels for selectively controlling power to produce visible light and/or infrared light. The luminescent planar sheet includes a protective coating which permits the passage of both visible light and infrared light, but substantially blocks most or all ultraviolet light. |
