P3D The Duoplane Silverama Screen

[Bob Stern <rstern@xxxxxxxxxxxx>]

Today I was given a set of instructions for the construction of an
interesting but odd projection screen.  Its called The Duoplane Silverama
Screen and is made using a clear, perfect sheet of 3/4" plywood, carefully
sanded so all imperfections are removed, then undercoated with shellac or
other sizing before painting with high-quality aluminum paint, making
certain the paint is applied carefully with no build up or evident
brushstrokes.  Then, 2" x 1/2" wood strip is applied to the front edges of
the plywood on all sides.  Over the wood strip, a white fabric of
double-knit polyester with a bit of sheen and great elasticity is stretched
over the wood strip very tightly, and certainly wrinkle-free.  The material
is somewhat porous and as it stretches, the porosity increases. (a sample of
the fabric was included with the instructions)  It's suggested to apply the
fabric with black thumb-tacks so it can be removed and washed when necessary
(and also allows further coats of aluminum paint to be put on the "under
screen").  Black fabric binder is then used over the front edges as an outer
framer.  Hang it on a wall, or suspend it from a ceiling.
A claim is made in these instructions that some motion pictures will have a
"third dimensional look  in certain scenes as a result of careful lighting
and ..... the clever placement of so-called 'advancing colors' like yellow
and red in foreground positions".   They also list a few films where that
effect (they alledge) take place.  In any event the claim is made that depth
realized in any film is undeniable.  
I'm now wondering if anyone is familiar with this screen, and will it be
applicable for 3-D projection.  I can see it happening with the aluminum
backing, but the fabric overlay, standing a 1/2" away makes me wonder.  Any
comments?
Best,
Bob
The Radio Guy
                 Bob Stern

  mailto:rstern@xxxxxxxxxxxx
                        -or-
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                      -also-
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AND SEE OPERA SINGERS IN 3-D
http://www.geocities.com/vienna/1059


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