초록 ▼

An internally illuminated sign having indirect illumination provided by light emitting diodes (LED). A plurality of LED's are mounted on a printed circuit board (PC board) and mounted within the sign. The PC board is offset to a side of the sign housing with the somewhat directional LED light source

An internally illuminated sign having indirect illumination provided by light emitting diodes (LED). A plurality of LED's are mounted on a printed circuit board (PC board) and mounted within the sign. The PC board is offset to a side of the sign housing with the somewhat directional LED light source directed toward a reflector. The reflector is angled to convert the generally narrow directional light source of an LED into a substantially even, diffused and non-uniform light distribution pattern.

대표청구항 ▼

[ What is claimed is:] [1.] A method of illuminating a sign assembly having a housing including a plurality of sides, and a display located on a side of the housing and including indicia defined by at least one translucent portion to permit the passage of light therethrough for viewing the indicia,

[ What is claimed is:] [1.] A method of illuminating a sign assembly having a housing including a plurality of sides, and a display located on a side of the housing and including indicia defined by at least one translucent portion to permit the passage of light therethrough for viewing the indicia, the method comprising the steps of:mounting a substrate having a plurality of solid-state lamps thereon to a wall on one side of the housing located adjacent to the side of the display, and orienting the substrate generally perpendicular to the display;providing at least one first approximately planar reflective surface within the housing spaced apart from and facing the display;providing at least one second approximately planar reflective surface within the housing spaced apart from and facing the plurality of solid-state lamps and thereby forming a cavity between the first and second reflective surfaces and display; andtransmitting light from the solid-state lamps along an unobstructed path into the cavity and in turn reflecting the light within the cavity off of the at least one first and at least one second reflective surfaces to illuminate the cavity and thereby illuminate the display.