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Light distribution reflector for exit signs and the illuminated by LED arrays

  • US 5,887,968 A
  • Filed: 05/02/1997
  • Issued: 03/30/1999
  • Est. Priority Date: 05/02/1997
  • Status: Expired due to Fees
First Claim
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1. In an illuminated sign having at least one legend which is to be illuminated from interiorly of the sign for viewing of the legend from a location outside of the sign, the sign including a top wall, a bottom wall, side walls and planar face walls forming a sign enclosure, at least one of the face walls bearing the at least one legend, the interior of the sign enclosure being illuminated by an array of spaced apart point light sources disposed substantially along at least portions of internal wall surfaces of at least one of the top, bottom or side walls, the improvement comprising reflector means disposed adjacent to at least certain of the light sources for reflecting light incident onto surfaces thereof opposing said light sources into the interior of the sign enclosure, the reflector means having reflective surfaces spaced from and adjacent to each of the light sources, openings being provided between the reflective surfaces at locations between said light sources, the interior of the sign enclosure being thus evenly illuminated and thereby evenly illuminating the at least one legend.

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