Motion-picture screen

Details Motion-picture screen Motion-picture screen

1991-11-05

1992-08-18

Wintercorn, Richard A.

Optical: systems and elements

Projection screen

Acoustical

G03B 2156

Patent

active

051404605

ABSTRACT:
A motion-picture screen for projecting an optical image, which comprises a weaved knit having an adequate air permeability. One surface of the weaved knit is coated with a colored material so as to keep a high acoustic permeability concurrently with shutting the light from a wall or the like existing at the rear side of the screen. The other surface of the weaved knit is used as a surface onto which the optical image is projected by a projector, thereby providing an excellent contrast and a high image quality on the screen.

REFERENCES:
patent: 1743602 (1930-01-01), Harson
patent: 1785330 (1930-12-01), Schoonmaker
patent: 1808077 (1931-06-01), Schoonmaker
patent: 1808078 (1931-06-01), Schoonmaker
patent: 1877941 (1932-09-01), Morris
patent: 1982600 (1934-11-01), Sponable
patent: 1985460 (1934-12-01), Raven
patent: 2130704 (1938-09-01), Patzwaldt
patent: 2238365 (1941-04-01), Hurley
patent: 3692384 (1972-09-01), Kimura et al.
"About Theater THX System and Home THX System", by Tomlinson Holman; JAS Journal Nov. 1989.
"Sound Transmission Through Perforated Screens" by Michael Rettinger; SMPTE Journal, Dec. 1982.

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