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A method and apparatus for producing a reflective or refractive surface that reflects or refracts light shined thereon and reproduces on a screen a desired greyscale intensity image on which the reflective or refractive surface is based and a corresponding apparatus, wherein the method permits a reproduction of a reference grayscale image with adjustable precision.
Mark Pauly, Yuliy Schwartzburg
Hans Peter Herzig, Toralf Scharf, Myun Sik Kim