LOW SCINTILLATION, MULTI-COMPONENT PROJECTION SCREEN

摘要

An improved projection screen which substantially reduces scintillation includes a first transparent element having an initial light refracting surface of closely spaced micro-optical elements that redirect a substantial portion of the light rays simultaneously entering a retina-resolvable area of the screen along different non-parallel paths of travel within the screen. Transparent spacing means are located adjacent the screen element containing the initial refracting surface and provide for intra-screen amplification of the initially created differences in the paths of ray travel to an extent that the intra-screen paths of travel of such rays differ by more than the coherence length of the image projecting light source.