Visual communications system

Details Visual communications system Visual communications system

1975-08-26

1978-02-28

Stephan, Steven L.

Optics: image projectors

Distortion compensation

353 28, 353121, G03B 2126, G03B 2114

Patent

active

040763986

ABSTRACT:
A multiple screen projection system including translucent multiple projection-receiving surfaces is described. The projection-receiving surfaces are adapted to receive a distortion-free image projected from front or rear on said surfaces from a point remote from an observer. A method of preparing a series of two-dimensional images which, when reproduced and projected onto a three-dimensional screen, will maintain focus and precise registration without distortion is also described.

REFERENCES:
patent: 647608 (1900-04-01), Pietzner
patent: 1189799 (1916-07-01), Erickson
patent: 1596458 (1926-08-01), Schiesari
patent: 1653180 (1927-12-01), Jalbert
patent: 1716768 (1929-06-01), Edmonds
patent: 2158906 (1939-05-01), Netter
patent: 3053144 (1962-09-01), Harries et al.

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