DIRECTIONAL FRONTAL PROJECTION SCREEN

摘要

P THE INVENTION CONCERNS THE OPTICAL INDUSTRY. /P P FRONTAL PROJECTION SCREEN OF THE TYPE COMPRISING A SHEET COMPRISING FIRST AND SECOND MAIN SURFACES; THE FIRST SURFACE 3 HAS A MATT SURFACE FINISH TO REDUCE THE SPECULAR REFLECTION FROM THE SAID FIRST SURFACE, AND THE SECOND SURFACE 4 PRESENTS IN THE FORM OF AN INCREMENTAL SPECIFIC REFLECTOR FOR DIRECTING THE REFLECTED LIGHT TO AT LEAST ONE AREA . /P P APPLICATION TO SCREENS OF GOOD BRIGHTNESS AND CONTRAST IN AMBIENT LIGHTING. /P