Lightweight compactible projection screen for trade show and...

Details Lightweight compactible projection screen for trade show and... Lightweight compactible projection screen for trade show and...

2007-01-16

2009-06-09

Mahoney, Christopher E (Department: 2862)

Optical: systems and elements

Projection screen

Curved

C359S459000, C359S461000

Reexamination Certificate

active

07545563

ABSTRACT:
A screen for a trade show or like environment that is lightweight, flexible and compactible. The screen may be patterned to include a plurality of ridges extending from a top to a bottom thereof that serve to reflect projected light into a larger field of view. The screen may be concave about a horizontal axis of otherwise arranged to reflect projected light toward a desired audience. Various releasable, biased mechanisms for attaching a flexible screen member to a disassembleable frame structure are also disclosed.

REFERENCES:
patent: 4473355 (1984-09-01), Pongratz
patent: 4525029 (1985-06-01), Inoue et al.
patent: 5130846 (1992-07-01), Kowalchuk
patent: 5402263 (1995-03-01), Kita et al.
patent: 6501599 (2002-12-01), Randolph et al.
patent: 2007/0133089 (2007-06-01), Lipton et al.
patent: WO 01/13172 (2001-02-01), None

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