Patent ID: 7453633

Claim:
A perforate projection screen with substantially uniform reflectivity throughout its visible surface comprising: (A) a plurality of perforate panels assembled together, each panel having; (1) a light reflective surface on one side thereof, (2) a plurality of rows of holes therethrough located substantially throughout the entire reflective surface of each panel, and (3) a plurality of edge portions extending around the panel; (B) each panel adapted to be mounted a spaced distance from a substantially non-reflective surface, thereby creating a substantially uniformly dark non-reflective chamber behind the panel; (C) each panel being mounted with at least one of its edge portions overlapping an edge portion of the next adjacent panel to form a seam; and (D) a dark material covering the surfaces of any objects which are in sufficiently close proximity to the back of the panel to be visible through the holes in the panel without such covering, said dark material having a textured surface comprised of a plurality of dark fibers extending vertically from the surface thereof to reduce the surface reflectivity of all such objects so that they are not visible through the holes in the panel; (E) at least part of the overlapped edge portions of each overlapped panel being crimped to form an offset overlapped strip which is recessed from the rest of the light reflective surface of the panel a sufficient distance so that when each overlapping panel is place in overlapping position with the offset overlapped strip, the light reflective surface of the overlapped panel and the overlapping panel are flush with each other and the edge of the overlapping panel is hidden by its position in the recess of the offset overlapped strip.