G - Physics – 09 – F
Patent
G - Physics
09
F
G09F 13/20 (2006.01)
Patent
CA 2135849
A sign for selected alphanumeric or graphic sign display is constructed from a first translucent fluorescent plastic sheet (FPS) having area dimensions selected for a sign display and a thickness for structural support of the sign and for conducting light along the plane of the FPS. A relatively thin reflective layer is formed on one side of the FPS. The reflective layer is substantially opaque and preferably white. A relatively thin decorative layer is formed over the reflective layer and is selected to provide a desired sign decor. Grooves are cut in the FPS in the pattern of the selected alphanumeric or graphic sign display. The grooves are cut in the FPS through the decorative and reflective layers and penetrate into the FPS in the range of 25% to 75% of the thickness of the FPS. The grooves are cut with angled surfaces forming angles between parallel and perpendicular angles to the FPS so that the FPS conducts ambient natural or artificial light along the plane of the FPS and concentrates and transmits light at the angled surfaces for illuminating the selected alphanumeric or graphic sign display. Grooves formed in the FPS are preferably substantially semicircular cross section. The edges of the fluorescent plastic sheet can be formed with a bevel angle edge. The signs are formed in a variety of sign configurations including boxes, enclosures, shades, covers, table top displays and sign displays generally. A variety of aesthetic effects is achieved by incorporating other layers into the sign structure.
Finlayson & Singlehurst
Shelton K. David
LandOfFree
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