Number plate housing

Claim 1

A number plate housing for receiving therein a number plate having fixing holes, comprising: a back member in the form of a shallow tray into which said number plate is set, said back member being provided on a back wall thereof with through holes corresponding to said fixing holes on said number plate and a plurality of forward extended studs at predetermined points, and a continuous stepped recess being provided along a rear outer periphery of said back member; a middle member made of transparent material and having a central convexo-convex portion to provide optical waveguide and refraction functions, said middle member being provided at predetermined positions with light receiving holes and an electrical wire groove for receiving electrical wires therein, a plurality of first stud receiving holes being formed on said middle member corresponding to said a plurality of studs on said back member, and a plurality of second stud receiving holes being formed adjacent to said first stud receiving holes and having a diameter slightly larger than that of said first stud receiving holes, such that said studs on said back member may loosely engage with said second stud receiving holes when said middle member is turned upside down; a plurality of light units each having multiple light emitting diodes lined thereon for mounting into said light receiving holes on said middle member, such that said light emitting diodes are connected to said electrical wires in said wire receiving groove on said middle member to form a circuit of said number plate housing for illuminating said number plate; and a front member in the form of a frame for fitly covering onto and sealing an assembly of said middle member, said number plate, and said back member; said front member defining a front opening suitable for framing said central convexo-convex portion of said middle member, said front member being provided on an inner side at predetermined points with a plurality of backward extended studs corresponding to said first stud receiving holes on said middle member, an inward extended flange being provided along a rear outer periphery of said front member for tightly engaging with said stepped recess on said back member; whereby when said number plate is set in said back member and said front and said middle members are sequentially assembled to said back member by tight engagement of said studs on said front and said back members with said first stud receiving holes on said middle member and said inward extended flange on said front member with said stepped recess on said back member, said number plate is protected from dust and thieves and numbers on said number plate are magnified by said central convexo-convex portion of said middle member for easy reading.