Patent ID: 7621662

Claim:
A visual alert system for mounting on the hood of a police vehicle comprising an irregular, nonequilateral, nonequiangular, planar polygonal top plate with a first, multi-sided periphery; an irregular, nonequilateral, nonequiangular, concave polygonal bottom plate with a second, multi sided periphery, and that is matingly conformed to a contour of said police vehicle hood; a front circuit board having an arced longitudinal edge and wherein said front circuit board has a reflective outer surface and houses at least one linear array of electrically connected light emitting diodes thereon; at least two side circuit boards tapered along a longitudinal axis and having a top and a bottom longitudinal edge and wherein said side circuit boards have a reflective outer surface and houses at least one linear array of electrically connected light emitting diodes thereon; at least one horizontal array of electrically connected light emitting diodes on said front and side circuit boards; at least one current limiting resistor; an electrical power connector; and an attachment device to attach said bottom plate to said hood; wherein said bottom plate is attached to said hood by said attachment device and has the identical polygonal configuration of said top plate but is dimensionally larger than said top plate, and wherein said top plate and said bottom plate are held in an angular, spaced proximity to each other by a connected, continuous single row ring, of said circuit boards arranged such that their top longitudinal edges form the identical polygonal configuration and size of said top plate and their bottom longitudinal edges form the identical polygonal configuration and size of said bottom plate, and which are each affixed at said top longitudinal edge to said top plate and affixed at said bottom longitudinal edge to said bottom plate, and wherein said light emitting diodes receive electrical power through said power connector and are restricted to a limited current by said limiting resistor which is mounted on one of said circuit boards.