Roll-up projection screen

Details Roll-up projection screen Roll-up projection screen

2007-06-14

2009-02-10

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

Roll up screen

Reexamination Certificate

active

07489443

ABSTRACT:
The front projection screen comprises firstly a support layer of substantially black color suitable for rolling onto a roll-up tube, and a weight at its bottom edge, and secondly a projection surface that is substantially white or pale gray, being smaller in size than said support layer, and being fastened to the support layer via a junction at its top edge and overlying the face of the screen that is to receive projection.

REFERENCES:
patent: 3251264 (1966-05-01), Jacobson
patent: 2005/0162740 (2005-07-01), Hou
patent: 1 154 395 (2001-11-01), None
patent: 05 273647 (1993-10-01), None
patent: 09 060429 (1997-03-01), None
patent: 2002 333672 (2002-11-01), None

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