| 摘要 |
A sign for conveying information, having a plastic body, illuminating means such as light emitting diodes (LEDs) mounted within the body and a reflective coating applied on a surface of the body carrying information to reflect light emitted from the illumination means back into the body of the sign. The sing may have the LEDs mounted to face an inside surface of the sign capable of scattering light to a transparent surface to produce an illuminated area. Scattering the light form scattering surface will produce a substantially even intensity of light across the illuminated area of the sign after its transmission form the sign.
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