| 摘要 |
A customizable back lighted sign comprising a hollow box-like body having an open side, an illumination source mounted within the body and electrically connected to a power source, a removable cover plate and lens mounted on the body and covering the open side, and thin sheet-like material having visible thereupon data such as numbers and letters and opaque background against which the data is highly visible, the thin sheet-like material being attached to the lens, the data being highly contrasted against the background while at the same time permitting the passage therethrough of light produced by the illumination source from within the box-like body.
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