Floor projection screen and method for manufacturing the same

Details Floor projection screen and method for manufacturing the same Floor projection screen and method for manufacturing the same

2011-02-08

2011-02-08

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

C359S452000, C052S173100

Reexamination Certificate

active

07885002

ABSTRACT:
A floor projection screen to be installed in front of department stores, shops, shopping malls, and a method for manufacturing the same are disclosed. The floor projection screen is formed by overlapping a hard screen material, which is obtained by mixing white cement with a light diffuser such as glass beads, silica, etc. having a particle of 400 to 800 mesh, or by mixing plastic resin with white cement, calcium material, pigments, etc., and a soft material such as urethane, rubber, or non-woven fabrics, thereby achieving vivid imaging, an anti-skid function, and durability for friction. The floor projection screen is manufactured by stacking a screen material on a surface of a tape-shaped soft material and rolling and hardening the screen material to complete a screen having a centric ring pattern, or by stacking a screen material on a surface of a tape-shaped soft material, repeating the stacking step until a desired size of the screen is obtained, and hardening the resulting stack to achieve a screen surface having a particle size of 40 to 800 mesh.

REFERENCES:
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patent: 4424239 (1984-01-01), Nota et al.
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patent: 5575294 (1996-11-01), Perry et al.
patent: 6630948 (2003-10-01), Walker
patent: 6982649 (2006-01-01), Blum et al.
patent: 7068427 (2006-06-01), Hopkins et al.

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