| 摘要 |
A lighting system for a translucent plastic car top sign having three side panels forming a truncated triangular pyramid and a top is disclosed. A convex reflector surface depends from the top and has three electric lamps oriented to be aligned with the apexes of the triangular pyramid such that each panel is illuminated by overlapping of direct and reflected light from the lamps. A translucent diffuser dome may be disposed over the reflector and lamps.
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