| US 7,489,444 B1 | ||
| Portable front projection screen assemblies with flexible screens | ||
| Douglas Adams, Raleigh, N.C. (US); Robert L. Wood, Cary, N.C. (US); Edward Fadel, Hillsborough, N.C. (US); Donald Hirsh, Chapel Hill, N.C. (US); and Sean Hillard, Raleigh, N.C. (US) | ||
| Assigned to Bright View Technologies, Inc., Morrisville, N.C. (US) | ||
| Filed on Dec. 20, 2007, as Appl. No. 11/961,364. | ||
| Claims priority of provisional application 60/981139, filed on Oct. 19, 2007. | ||
| Int. Cl. G03B 21/60 (2006.01) | ||
| U.S. Cl. 359—461 | 23 Claims |
| 1. A portable projection screen assembly, comprising:
a first housing member comprising a roller oriented in a substantially vertical orientation in the first housing member;
a flexible projection screen with a high gain and a high Ambient Rejection Ratio (ARR), wherein the screen is configured to
roll onto and unroll from the roller;
a second housing member attached to one vertically extending end portion of the projection screen and releasably matably attached
to the first housing member; and
a collapsible frame attached to the first and second housing members whereby the first and second housing members and the
frame laterally slide between a closed storage configuration and at least one open viewing configuration, wherein the collapsible
frame includes a first linkage pair with first and second links pivotably attached to each other and a second linkage pair
with first and second links pivotably attached to each other, with the first link of each linkage pair attached to the first
housing member and the second link of each linkage pair attached to the second housing member,
wherein, in the storage configuration, the projection screen is wound on the roller and the first and second members are closed
together with the frame collapsed and held therebetween, and wherein, in the at least one open viewing configuration, the
first and second housing members are laterally spaced apart with the projection screen and frame extending therebetween and
the frame residing behind the projection screen.
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