| 摘要 |
An illuminated sign comprising a light source 26, a transparent sheet 32 having one edge thereof which one edge is assembled adjacent the light source for receiving light therefrom which, in use, is transmitted along the transparent sheet, a front image layer 44 which is disposed on a front face of the transparent sheet and has a rearwardly-directed reflective surface 58 and a rear image layer 46 which is disposed on a rear face of the transparent sheet substantially in registry with the front image layer whereby, in use, light is reflected from the reflective surface onto the rear image layer thereby to enhance the illumination of the rear image layer. Both layers may be of self-adhesive plastic film, and may carry printed matter. The front layer may be partially light transmissive. The rear layer may take the form of a fluorescent film. The layers may be shaped and orientated such that the front layer partially exposes the rear layer. Alternatively, the layers may be offset from each other. The sign may further include a backing sheet 62, suitably on opaque plastic sheet having a coloured or fluorescent coating. The sign may have an inclined second edge 38, to reflect light back into sheet 32.
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