Projection screen

Details Projection screen Projection screen

1984-06-11

1985-10-22

Wintercorn, Richard A.

G03B 2160

Patent

active

045484708

ABSTRACT:
An improved projection screen is provided having particular application for use in front projection composite photography. A substrate screen backing is provided onto which a plurality of tiles of screen material is attached. Each of the tiles of screen material is formed in the shape of a regular, concave hexagon whose connective line segment edges describe a concave arc from a first segment point "A" to a midpoint "M", wherein the concave arc has a radius of curvature R equal to the distance between segment point A and the midpoint M. A convex arc is described having a radius R from the midpoint M to a second segment point "B". Each of the tiles of screen material are attached to the substrate backing in a regular periodic fashion, such that the backing is tessellated with tiles of screen material. In the present embodiment, the edges of each tile of screen material are overlapped with adjacent tiles of material, in order to form a homogenous projection screen.

REFERENCES:
patent: 3469837 (1969-09-01), Heilig
patent: 4241980 (1980-12-01), Mihalakis et al.
patent: 4297001 (1981-10-01), Antes et al.
patent: 4329019 (1982-05-01), Okoshi et al.

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