Patent ID: 6856383

Claim:
A system for generating an image of relief object comprising: an electroluminescent device coupled to an electrode; a variable resistive layer adjacent to one surface of said electroluminescent device, said variable resistive layer being comprised of conductive particles dispersed through a non-conductive medium, wherein said conducting particles are smaller than the resolution element desired for image; a flexible electrode substantially covering a surface of said variable resistive layer; an electrical current source, said electrical current source having one lead coupled to said electrode of said electroluminescent device and a second lead for coupling to said flexible electrode so that current coupled from said current source to said flexible electrode is strongly coupled through a low resistance path through said variable resistive layer to said electroluminescent device by ridges of said relief object and weakly coupled through a high resistance path through said variable resistive layer to said electroluminescent device by valleys of said relief object whereby more intense light is generated by areas of said electroluminescent device strongly coupled to said current from said ridges of said relief object and less intense light is generated by areas of said electroluminescent device weakly coupled to said current from valleys of said relief object to form an image of the relief object; and wherein said image is a detailed image of a finger print that could be used for identification.