Patent ID: 8281509

Claim:
A nautical navigation aid with a photoluminescent element and a light wave redirection means which comprises: a first rigid sheet member having an upper surface, a lower surface and a peripheral edge, wherein the upper surface comprises of an indicia means; a second rigid sheet member having an upper surface and a lower surface extending outward and upward from the peripheral edge of the first rigid sheet member at a predetermined angle to a predetermined length, thereby defining an angled collar of the first rigid sheet member so that the first rigid sheet member and the second rigid sheet member extending outward and upward therefrom form an open dish shape of a predetermined depth sized and configured to redirect light waves emanating from a light source when said light source is an external light source directed towards the upper surface of the second rigid sheet member; and a luminescent layer, wherein the luminescent laver comprises an adhesive photoluminescent film having an upper surface and a lower surface, wherein the adhesive photoluminescent film absorbs photons from an external light source and remains glowing when the light source is removed, the luminescent laver is positioned such that the lower surface of the photoluminescent film contacts the upper surface of the second rigid sheet member.